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Add new line protocol parser and serializer, influxdb output (#3924)

This commit is contained in:
Daniel Nelson 2018-03-27 17:30:51 -07:00 committed by GitHub
parent 720c27559c
commit 222a68d72e
70 changed files with 26827 additions and 6533 deletions
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4
.gitignore vendored
View File

@ -1,5 +1,3 @@
build
/build
/telegraf
/telegraf.gz
*~
*#

4
Godeps
View File

@ -73,8 +73,8 @@ github.com/Sirupsen/logrus 61e43dc76f7ee59a82bdf3d71033dc12bea4c77d
github.com/soniah/gosnmp 5ad50dc75ab389f8a1c9f8a67d3a1cd85f67ed15
github.com/StackExchange/wmi f3e2bae1e0cb5aef83e319133eabfee30013a4a5
github.com/streadway/amqp 63795daa9a446c920826655f26ba31c81c860fd6
github.com/stretchr/objx 1a9d0bb9f541897e62256577b352fdbc1fb4fd94
github.com/stretchr/testify 4d4bfba8f1d1027c4fdbe371823030df51419987
github.com/stretchr/objx facf9a85c22f48d2f52f2380e4efce1768749a89
github.com/stretchr/testify 12b6f73e6084dad08a7c6e575284b177ecafbc71
github.com/tidwall/gjson 0623bd8fbdbf97cc62b98d15108832851a658e59
github.com/tidwall/match 173748da739a410c5b0b813b956f89ff94730b4c
github.com/vjeantet/grok d73e972b60935c7fec0b4ffbc904ed39ecaf7efe

11
Makefile
View File

@ -3,7 +3,7 @@ VERSION := $(shell git describe --exact-match --tags 2>/dev/null)
BRANCH := $(shell git rev-parse --abbrev-ref HEAD)
COMMIT := $(shell git rev-parse --short HEAD)
GOFILES ?= $(shell git ls-files '*.go')
GOFMT ?= $(shell gofmt -l $(GOFILES))
GOFMT ?= $(shell gofmt -l $(filter-out plugins/parsers/influx/machine.go, $(GOFILES)))
ifdef GOBIN
PATH := $(GOBIN):$(PATH)
@ -48,7 +48,7 @@ test:
go test -short ./...
fmt:
@gofmt -w $(GOFILES)
@gofmt -w $(filter-out plugins/parsers/influx/machine.go, $(GOFILES))
fmtcheck:
@echo '[INFO] running gofmt to identify incorrectly formatted code...'
@ -73,8 +73,8 @@ test-windows:
# vet runs the Go source code static analysis tool `vet` to find
# any common errors.
vet:
@echo 'go vet $$(go list ./...)'
@go vet $$(go list ./...) ; if [ $$? -eq 1 ]; then \
@echo 'go vet $$(go list ./... | grep -v ./plugins/parsers/influx)'
@go vet $$(go list ./... | grep -v ./plugins/parsers/influx) ; if [ $$? -eq 1 ]; then \
echo ""; \
echo "go vet has found suspicious constructs. Please remediate any reported errors"; \
echo "to fix them before submitting code for review."; \
@ -96,4 +96,7 @@ docker-image:
cp build/telegraf*$(COMMIT)*.deb .
docker build -f scripts/dev.docker --build-arg "package=telegraf*$(COMMIT)*.deb" -t "telegraf-dev:$(COMMIT)" .
plugins/parsers/influx/machine.go: plugins/parsers/influx/machine.go.rl
ragel -Z -G2 $^ -o $@
.PHONY: deps telegraf install test test-windows lint vet test-all package clean docker-image fmtcheck

319
agent/accumulator_test.go
View File

@ -15,63 +15,36 @@ import (
"github.com/stretchr/testify/require"
)
func TestAdd(t *testing.T) {
now := time.Now()
metrics := make(chan telegraf.Metric, 10)
defer close(metrics)
a := NewAccumulator(&TestMetricMaker{}, metrics)
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{})
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"})
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"}, now)
testm := <-metrics
actual := testm.String()
assert.Contains(t, actual, "acctest value=101")
testm = <-metrics
actual = testm.String()
assert.Contains(t, actual, "acctest,acc=test value=101")
testm = <-metrics
actual = testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test value=101 %d\n", now.UnixNano()),
actual)
}
func TestAddFields(t *testing.T) {
now := time.Now()
metrics := make(chan telegraf.Metric, 10)
defer close(metrics)
a := NewAccumulator(&TestMetricMaker{}, metrics)
tags := map[string]string{"foo": "bar"}
fields := map[string]interface{}{
"usage": float64(99),
}
a.AddFields("acctest", fields, map[string]string{})
a.AddGauge("acctest", fields, map[string]string{"acc": "test"})
a.AddCounter("acctest", fields, map[string]string{"acc": "test"}, now)
now := time.Now()
a.AddCounter("acctest", fields, tags, now)
testm := <-metrics
actual := testm.String()
assert.Contains(t, actual, "acctest usage=99")
testm = <-metrics
actual = testm.String()
assert.Contains(t, actual, "acctest,acc=test usage=99")
require.Equal(t, "acctest", testm.Name())
actual, ok := testm.GetField("usage")
testm = <-metrics
actual = testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test usage=99 %d\n", now.UnixNano()),
actual)
require.True(t, ok)
require.Equal(t, float64(99), actual)
actual, ok = testm.GetTag("foo")
require.True(t, ok)
require.Equal(t, "bar", actual)
tm := testm.Time()
// okay if monotonic clock differs
require.True(t, now.Equal(tm))
tp := testm.Type()
require.Equal(t, telegraf.Counter, tp)
}
func TestAccAddError(t *testing.T) {
@ -98,215 +71,61 @@ func TestAccAddError(t *testing.T) {
assert.Contains(t, string(errs[2]), "baz")
}
func TestAddNoIntervalWithPrecision(t *testing.T) {
now := time.Date(2006, time.February, 10, 12, 0, 0, 82912748, time.UTC)
metrics := make(chan telegraf.Metric, 10)
defer close(metrics)
a := NewAccumulator(&TestMetricMaker{}, metrics)
a.SetPrecision(0, time.Second)
func TestSetPrecision(t *testing.T) {
tests := []struct {
name string
unset bool
precision time.Duration
interval time.Duration
timestamp time.Time
expected time.Time
}{
{
name: "default precision is nanosecond",
unset: true,
timestamp: time.Date(2006, time.February, 10, 12, 0, 0, 82912748, time.UTC),
expected: time.Date(2006, time.February, 10, 12, 0, 0, 82912748, time.UTC),
},
{
name: "second interval",
interval: time.Second,
timestamp: time.Date(2006, time.February, 10, 12, 0, 0, 82912748, time.UTC),
expected: time.Date(2006, time.February, 10, 12, 0, 0, 0, time.UTC),
},
{
name: "microsecond interval",
interval: time.Microsecond,
timestamp: time.Date(2006, time.February, 10, 12, 0, 0, 82912748, time.UTC),
expected: time.Date(2006, time.February, 10, 12, 0, 0, 82913000, time.UTC),
},
{
name: "2 second precision",
precision: 2 * time.Second,
timestamp: time.Date(2006, time.February, 10, 12, 0, 2, 4, time.UTC),
expected: time.Date(2006, time.February, 10, 12, 0, 2, 0, time.UTC),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
metrics := make(chan telegraf.Metric, 10)
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{})
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"})
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"}, now)
a := NewAccumulator(&TestMetricMaker{}, metrics)
if !tt.unset {
a.SetPrecision(tt.precision, tt.interval)
}
testm := <-metrics
actual := testm.String()
assert.Contains(t, actual, "acctest value=101")
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{},
tt.timestamp,
)
testm = <-metrics
actual = testm.String()
assert.Contains(t, actual, "acctest,acc=test value=101")
testm := <-metrics
require.Equal(t, tt.expected, testm.Time())
testm = <-metrics
actual = testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test value=101 %d\n", int64(1139572800000000000)),
actual)
}
func TestAddDisablePrecision(t *testing.T) {
now := time.Date(2006, time.February, 10, 12, 0, 0, 82912748, time.UTC)
metrics := make(chan telegraf.Metric, 10)
defer close(metrics)
a := NewAccumulator(&TestMetricMaker{}, metrics)
a.SetPrecision(time.Nanosecond, 0)
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{})
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"})
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"}, now)
testm := <-metrics
actual := testm.String()
assert.Contains(t, actual, "acctest value=101")
testm = <-metrics
actual = testm.String()
assert.Contains(t, actual, "acctest,acc=test value=101")
testm = <-metrics
actual = testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test value=101 %d\n", int64(1139572800082912748)),
actual)
}
func TestAddNoPrecisionWithInterval(t *testing.T) {
now := time.Date(2006, time.February, 10, 12, 0, 0, 82912748, time.UTC)
metrics := make(chan telegraf.Metric, 10)
defer close(metrics)
a := NewAccumulator(&TestMetricMaker{}, metrics)
a.SetPrecision(0, time.Second)
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{})
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"})
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"}, now)
testm := <-metrics
actual := testm.String()
assert.Contains(t, actual, "acctest value=101")
testm = <-metrics
actual = testm.String()
assert.Contains(t, actual, "acctest,acc=test value=101")
testm = <-metrics
actual = testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test value=101 %d\n", int64(1139572800000000000)),
actual)
}
func TestDifferentPrecisions(t *testing.T) {
now := time.Date(2006, time.February, 10, 12, 0, 0, 82912748, time.UTC)
metrics := make(chan telegraf.Metric, 10)
defer close(metrics)
a := NewAccumulator(&TestMetricMaker{}, metrics)
a.SetPrecision(0, time.Second)
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"}, now)
testm := <-metrics
actual := testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test value=101 %d\n", int64(1139572800000000000)),
actual)
a.SetPrecision(0, time.Millisecond)
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"}, now)
testm = <-metrics
actual = testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test value=101 %d\n", int64(1139572800083000000)),
actual)
a.SetPrecision(0, time.Microsecond)
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"}, now)
testm = <-metrics
actual = testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test value=101 %d\n", int64(1139572800082913000)),
actual)
a.SetPrecision(0, time.Nanosecond)
a.AddFields("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"}, now)
testm = <-metrics
actual = testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test value=101 %d\n", int64(1139572800082912748)),
actual)
}
func TestAddGauge(t *testing.T) {
now := time.Now()
metrics := make(chan telegraf.Metric, 10)
defer close(metrics)
a := NewAccumulator(&TestMetricMaker{}, metrics)
a.AddGauge("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{})
a.AddGauge("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"})
a.AddGauge("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"}, now)
testm := <-metrics
actual := testm.String()
assert.Contains(t, actual, "acctest value=101")
assert.Equal(t, testm.Type(), telegraf.Gauge)
testm = <-metrics
actual = testm.String()
assert.Contains(t, actual, "acctest,acc=test value=101")
assert.Equal(t, testm.Type(), telegraf.Gauge)
testm = <-metrics
actual = testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test value=101 %d\n", now.UnixNano()),
actual)
assert.Equal(t, testm.Type(), telegraf.Gauge)
}
func TestAddCounter(t *testing.T) {
now := time.Now()
metrics := make(chan telegraf.Metric, 10)
defer close(metrics)
a := NewAccumulator(&TestMetricMaker{}, metrics)
a.AddCounter("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{})
a.AddCounter("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"})
a.AddCounter("acctest",
map[string]interface{}{"value": float64(101)},
map[string]string{"acc": "test"}, now)
testm := <-metrics
actual := testm.String()
assert.Contains(t, actual, "acctest value=101")
assert.Equal(t, testm.Type(), telegraf.Counter)
testm = <-metrics
actual = testm.String()
assert.Contains(t, actual, "acctest,acc=test value=101")
assert.Equal(t, testm.Type(), telegraf.Counter)
testm = <-metrics
actual = testm.String()
assert.Equal(t,
fmt.Sprintf("acctest,acc=test value=101 %d\n", now.UnixNano()),
actual)
assert.Equal(t, testm.Type(), telegraf.Counter)
close(metrics)
})
}
}
type TestMetricMaker struct {

8
agent/agent.go
View File

@ -271,11 +271,9 @@ func (a *Agent) flusher(shutdown chan struct{}, metricC chan telegraf.Metric, ag
// if dropOriginal is set to true, then we will only send this
// metric to the aggregators, not the outputs.
var dropOriginal bool
if !m.IsAggregate() {
for _, agg := range a.Config.Aggregators {
if ok := agg.Add(m.Copy()); ok {
dropOriginal = true
}
for _, agg := range a.Config.Aggregators {
if ok := agg.Add(m.Copy()); ok {
dropOriginal = true
}
}
if !dropOriginal {

27
internal/config/config.go
View File

@ -9,6 +9,7 @@ import (
"math"
"os"
"path/filepath"
"regexp"
"runtime"
"sort"
@ -1366,6 +1367,30 @@ func buildSerializer(name string, tbl *ast.Table) (serializers.Serializer, error
}
}
if node, ok := tbl.Fields["influx_max_line_bytes"]; ok {
if kv, ok := node.(*ast.KeyValue); ok {
if integer, ok := kv.Value.(*ast.Integer); ok {
v, err := integer.Int()
if err != nil {
return nil, err
}
c.InfluxMaxLineBytes = int(v)
}
}
}
if node, ok := tbl.Fields["influx_sort_fields"]; ok {
if kv, ok := node.(*ast.KeyValue); ok {
if b, ok := kv.Value.(*ast.Boolean); ok {
var err error
c.InfluxSortFields, err = b.Boolean()
if err != nil {
return nil, err
}
}
}
}
if node, ok := tbl.Fields["json_timestamp_units"]; ok {
if kv, ok := node.(*ast.KeyValue); ok {
if str, ok := kv.Value.(*ast.String); ok {
@ -1382,6 +1407,8 @@ func buildSerializer(name string, tbl *ast.Table) (serializers.Serializer, error
}
}
delete(tbl.Fields, "influx_max_line_bytes")
delete(tbl.Fields, "influx_sort_fields")
delete(tbl.Fields, "data_format")
delete(tbl.Fields, "prefix")
delete(tbl.Fields, "template")

80
internal/models/makemetric.go
View File

@ -2,8 +2,6 @@ package models
import (
"log"
"math"
"strings"
"time"
"github.com/influxdata/telegraf"
@ -78,84 +76,6 @@ func makemetric(
}
}
for k, v := range tags {
if strings.HasSuffix(k, `\`) {
log.Printf("D! Measurement [%s] tag [%s] "+
"ends with a backslash, skipping", measurement, k)
delete(tags, k)
continue
} else if strings.HasSuffix(v, `\`) {
log.Printf("D! Measurement [%s] tag [%s] has a value "+
"ending with a backslash, skipping", measurement, k)
delete(tags, k)
continue
}
}
for k, v := range fields {
if strings.HasSuffix(k, `\`) {
log.Printf("D! Measurement [%s] field [%s] "+
"ends with a backslash, skipping", measurement, k)
delete(fields, k)
continue
}
// Validate uint64 and float64 fields
// convert all int & uint types to int64
switch val := v.(type) {
case nil:
// delete nil fields
delete(fields, k)
case uint:
fields[k] = int64(val)
continue
case uint8:
fields[k] = int64(val)
continue
case uint16:
fields[k] = int64(val)
continue
case uint32:
fields[k] = int64(val)
continue
case int:
fields[k] = int64(val)
continue
case int8:
fields[k] = int64(val)
continue
case int16:
fields[k] = int64(val)
continue
case int32:
fields[k] = int64(val)
continue
case uint64:
// InfluxDB does not support writing uint64
if val < uint64(9223372036854775808) {
fields[k] = int64(val)
} else {
fields[k] = int64(9223372036854775807)
}
continue
case float32:
fields[k] = float64(val)
continue
case float64:
// NaNs are invalid values in influxdb, skip measurement
if math.IsNaN(val) || math.IsInf(val, 0) {
log.Printf("D! Measurement [%s] field [%s] has a NaN or Inf "+
"field, skipping",
measurement, k)
delete(fields, k)
continue
}
case string:
fields[k] = v
default:
fields[k] = v
}
}
m, err := metric.New(measurement, tags, fields, t, mType)
if err != nil {
log.Printf("Error adding point [%s]: %s\n", measurement, err.Error())

64
internal/models/running_aggregator_test.go
View File

@ -1,7 +1,6 @@
package models
import (
"fmt"
"sync"
"sync/atomic"
"testing"
@ -167,69 +166,6 @@ func TestAddDropOriginal(t *testing.T) {
assert.False(t, ra.Add(m2))
}
// make an untyped, counter, & gauge metric
func TestMakeMetricA(t *testing.T) {
now := time.Now()
ra := NewRunningAggregator(&TestAggregator{}, &AggregatorConfig{
Name: "TestRunningAggregator",
})
assert.Equal(t, "aggregators.TestRunningAggregator", ra.Name())
m := ra.MakeMetric(
"RITest",
map[string]interface{}{"value": int(101)},
map[string]string{},
telegraf.Untyped,
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest value=101i %d\n", now.UnixNano()),
m.String(),
)
assert.Equal(
t,
m.Type(),
telegraf.Untyped,
)
m = ra.MakeMetric(
"RITest",
map[string]interface{}{"value": int(101)},
map[string]string{},
telegraf.Counter,
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest value=101i %d\n", now.UnixNano()),
m.String(),
)
assert.Equal(
t,
m.Type(),
telegraf.Counter,
)
m = ra.MakeMetric(
"RITest",
map[string]interface{}{"value": int(101)},
map[string]string{},
telegraf.Gauge,
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest value=101i %d\n", now.UnixNano()),
m.String(),
)
assert.Equal(
t,
m.Type(),
telegraf.Gauge,
)
}
type TestAggregator struct {
sum int64
}

7
internal/models/running_input.go
View File

@ -5,6 +5,7 @@ import (
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/serializers/influx"
"github.com/influxdata/telegraf/selfstat"
)
@ -75,7 +76,11 @@ func (r *RunningInput) MakeMetric(
)
if r.trace && m != nil {
fmt.Print("> " + m.String())
s := influx.NewSerializer()
octets, err := s.Serialize(m)
if err == nil {
fmt.Print("> " + string(octets))
}
}
r.MetricsGathered.Incr(1)

335
internal/models/running_input_test.go
View File

@ -1,12 +1,11 @@
package models
import (
"fmt"
"math"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
@ -45,77 +44,17 @@ func TestMakeMetricNilFields(t *testing.T) {
telegraf.Untyped,
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest value=101i %d\n", now.UnixNano()),
m.String(),
)
}
// make an untyped, counter, & gauge metric
func TestMakeMetric(t *testing.T) {
now := time.Now()
ri := NewRunningInput(&testInput{}, &InputConfig{
Name: "TestRunningInput",
})
ri.SetTrace(true)
assert.Equal(t, true, ri.Trace())
assert.Equal(t, "inputs.TestRunningInput", ri.Name())
m := ri.MakeMetric(
"RITest",
map[string]interface{}{"value": int(101)},
expected, err := metric.New("RITest",
map[string]string{},
telegraf.Untyped,
map[string]interface{}{
"value": int(101),
},
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest value=101i %d\n", now.UnixNano()),
m.String(),
)
assert.Equal(
t,
m.Type(),
telegraf.Untyped,
)
require.NoError(t, err)
m = ri.MakeMetric(
"RITest",
map[string]interface{}{"value": int(101)},
map[string]string{},
telegraf.Counter,
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest value=101i %d\n", now.UnixNano()),
m.String(),
)
assert.Equal(
t,
m.Type(),
telegraf.Counter,
)
m = ri.MakeMetric(
"RITest",
map[string]interface{}{"value": int(101)},
map[string]string{},
telegraf.Gauge,
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest value=101i %d\n", now.UnixNano()),
m.String(),
)
assert.Equal(
t,
m.Type(),
telegraf.Gauge,
)
require.Equal(t, expected, m)
}
func TestMakeMetricWithPluginTags(t *testing.T) {
@ -137,11 +76,18 @@ func TestMakeMetricWithPluginTags(t *testing.T) {
telegraf.Untyped,
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest,foo=bar value=101i %d\n", now.UnixNano()),
m.String(),
expected, err := metric.New("RITest",
map[string]string{
"foo": "bar",
},
map[string]interface{}{
"value": 101,
},
now,
)
require.NoError(t, err)
require.Equal(t, expected, m)
}
func TestMakeMetricFilteredOut(t *testing.T) {
@ -187,87 +133,17 @@ func TestMakeMetricWithDaemonTags(t *testing.T) {
telegraf.Untyped,
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest,foo=bar value=101i %d\n", now.UnixNano()),
m.String(),
)
}
// make an untyped, counter, & gauge metric
func TestMakeMetricInfFields(t *testing.T) {
inf := math.Inf(1)
ninf := math.Inf(-1)
now := time.Now()
ri := NewRunningInput(&testInput{}, &InputConfig{
Name: "TestRunningInput",
})
ri.SetTrace(true)
assert.Equal(t, true, ri.Trace())
m := ri.MakeMetric(
"RITest",
map[string]interface{}{
"value": int(101),
"inf": inf,
"ninf": ninf,
expected, err := metric.New("RITest",
map[string]string{
"foo": "bar",
},
map[string]interface{}{
"value": 101,
},
map[string]string{},
telegraf.Untyped,
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest value=101i %d\n", now.UnixNano()),
m.String(),
)
}
func TestMakeMetricAllFieldTypes(t *testing.T) {
now := time.Now()
ri := NewRunningInput(&testInput{}, &InputConfig{
Name: "TestRunningInput",
})
ri.SetTrace(true)
assert.Equal(t, true, ri.Trace())
m := ri.MakeMetric(
"RITest",
map[string]interface{}{
"a": int(10),
"b": int8(10),
"c": int16(10),
"d": int32(10),
"e": uint(10),
"f": uint8(10),
"g": uint16(10),
"h": uint32(10),
"i": uint64(10),
"j": float32(10),
"k": uint64(9223372036854775810),
"l": "foobar",
"m": true,
},
map[string]string{},
telegraf.Untyped,
now,
)
assert.Contains(t, m.String(), "a=10i")
assert.Contains(t, m.String(), "b=10i")
assert.Contains(t, m.String(), "c=10i")
assert.Contains(t, m.String(), "d=10i")
assert.Contains(t, m.String(), "e=10i")
assert.Contains(t, m.String(), "f=10i")
assert.Contains(t, m.String(), "g=10i")
assert.Contains(t, m.String(), "h=10i")
assert.Contains(t, m.String(), "i=10i")
assert.Contains(t, m.String(), "j=10")
assert.NotContains(t, m.String(), "j=10i")
assert.Contains(t, m.String(), "k=9223372036854775807i")
assert.Contains(t, m.String(), "l=\"foobar\"")
assert.Contains(t, m.String(), "m=true")
require.NoError(t, err)
require.Equal(t, expected, m)
}
func TestMakeMetricNameOverride(t *testing.T) {
@ -284,11 +160,15 @@ func TestMakeMetricNameOverride(t *testing.T) {
telegraf.Untyped,
now,
)
assert.Equal(
t,
fmt.Sprintf("foobar value=101i %d\n", now.UnixNano()),
m.String(),
expected, err := metric.New("foobar",
nil,
map[string]interface{}{
"value": 101,
},
now,
)
require.NoError(t, err)
require.Equal(t, expected, m)
}
func TestMakeMetricNamePrefix(t *testing.T) {
@ -305,11 +185,15 @@ func TestMakeMetricNamePrefix(t *testing.T) {
telegraf.Untyped,
now,
)
assert.Equal(
t,
fmt.Sprintf("foobar_RITest value=101i %d\n", now.UnixNano()),
m.String(),
expected, err := metric.New("foobar_RITest",
nil,
map[string]interface{}{
"value": 101,
},
now,
)
require.NoError(t, err)
require.Equal(t, expected, m)
}
func TestMakeMetricNameSuffix(t *testing.T) {
@ -326,134 +210,15 @@ func TestMakeMetricNameSuffix(t *testing.T) {
telegraf.Untyped,
now,
)
assert.Equal(
t,
fmt.Sprintf("RITest_foobar value=101i %d\n", now.UnixNano()),
m.String(),
expected, err := metric.New("RITest_foobar",
nil,
map[string]interface{}{
"value": 101,
},
now,
)
}
func TestMakeMetric_TrailingSlash(t *testing.T) {
now := time.Now()
tests := []struct {
name string
measurement string
fields map[string]interface{}
tags map[string]string
expectedNil bool
expectedMeasurement string
expectedFields map[string]interface{}
expectedTags map[string]string
}{
{
name: "Measurement cannot have trailing slash",
measurement: `cpu\`,
fields: map[string]interface{}{
"value": int64(42),
},
tags: map[string]string{},
expectedNil: true,
},
{
name: "Field key with trailing slash dropped",
measurement: `cpu`,
fields: map[string]interface{}{
"value": int64(42),
`bad\`: `xyzzy`,
},
tags: map[string]string{},
expectedMeasurement: `cpu`,
expectedFields: map[string]interface{}{
"value": int64(42),
},
expectedTags: map[string]string{},
},
{
name: "Field value with trailing slash okay",
measurement: `cpu`,
fields: map[string]interface{}{
"value": int64(42),
"ok": `xyzzy\`,
},
tags: map[string]string{},
expectedMeasurement: `cpu`,
expectedFields: map[string]interface{}{
"value": int64(42),
"ok": `xyzzy\`,
},
expectedTags: map[string]string{},
},
{
name: "Must have one field after dropped",
measurement: `cpu`,
fields: map[string]interface{}{
"bad": math.NaN(),
},
tags: map[string]string{},
expectedNil: true,
},
{
name: "Tag key with trailing slash dropped",
measurement: `cpu`,
fields: map[string]interface{}{
"value": int64(42),
},
tags: map[string]string{
`host\`: "localhost",
"a": "x",
},
expectedMeasurement: `cpu`,
expectedFields: map[string]interface{}{
"value": int64(42),
},
expectedTags: map[string]string{
"a": "x",
},
},
{
name: "Tag value with trailing slash dropped",
measurement: `cpu`,
fields: map[string]interface{}{
"value": int64(42),
},
tags: map[string]string{
`host`: `localhost\`,
"a": "x",
},
expectedMeasurement: `cpu`,
expectedFields: map[string]interface{}{
"value": int64(42),
},
expectedTags: map[string]string{
"a": "x",
},
},
}
ri := NewRunningInput(&testInput{}, &InputConfig{
Name: "TestRunningInput",
})
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
m := ri.MakeMetric(
tc.measurement,
tc.fields,
tc.tags,
telegraf.Untyped,
now)
if tc.expectedNil {
require.Nil(t, m)
} else {
require.NotNil(t, m)
require.Equal(t, tc.expectedMeasurement, m.Name())
require.Equal(t, tc.expectedFields, m.Fields())
require.Equal(t, tc.expectedTags, m.Tags())
}
})
}
require.NoError(t, err)
require.Equal(t, expected, m)
}
type testInput struct{}

60
metric.go
View File

@ -17,48 +17,50 @@ const (
Histogram
)
type Tag struct {
Key string
Value string
}
type Field struct {
Key string
Value interface{}
}
type Metric interface {
// Serialize serializes the metric into a line-protocol byte buffer,
// including a newline at the end.
Serialize() []byte
// same as Serialize, but avoids an allocation.
// returns number of bytes copied into dst.
SerializeTo(dst []byte) int
// String is the same as Serialize, but returns a string.
String() string
// Copy deep-copies the metric.
Copy() Metric
// Split will attempt to return multiple metrics with the same timestamp
// whose string representations are no longer than maxSize.
// Metrics with a single field may exceed the requested size.
Split(maxSize int) []Metric
// Getting data structure functions
Name() string
Tags() map[string]string
TagList() []*Tag
Fields() map[string]interface{}
FieldList() []*Field
Time() time.Time
Type() ValueType
// Name functions
SetName(name string)
AddPrefix(prefix string)
AddSuffix(suffix string)
// Tag functions
GetTag(key string) (string, bool)
HasTag(key string) bool
AddTag(key, value string)
RemoveTag(key string)
// Field functions
GetField(key string) (interface{}, bool)
HasField(key string) bool
AddField(key string, value interface{})
RemoveField(key string) error
RemoveField(key string)
// Name functions
SetName(name string)
SetPrefix(prefix string)
SetSuffix(suffix string)
// Getting data structure functions
Name() string
Tags() map[string]string
Fields() map[string]interface{}
Time() time.Time
UnixNano() int64
Type() ValueType
Len() int // returns the length of the serialized metric, including newline
// HashID returns an unique identifier for the series.
HashID() uint64
// aggregator things:
// Copy returns a deep copy of the Metric.
Copy() Metric
// Mark Metric as an aggregate
SetAggregate(bool)
IsAggregate() bool
}

51
metric/builder.go Normal file
View File

@ -0,0 +1,51 @@
package metric
import (
"time"
"github.com/influxdata/telegraf"
)
type TimeFunc func() time.Time
type Builder struct {
TimeFunc
*metric
}
func NewBuilder() *Builder {
b := &Builder{
TimeFunc: time.Now,
}
b.Reset()
return b
}
func (b *Builder) SetName(name string) {
b.name = name
}
func (b *Builder) AddTag(key string, value string) {
b.metric.AddTag(key, value)
}
func (b *Builder) AddField(key string, value interface{}) {
b.metric.AddField(key, value)
}
func (b *Builder) SetTime(tm time.Time) {
b.tm = tm
}
func (b *Builder) Reset() {
b.metric = &metric{}
}
func (b *Builder) Metric() (telegraf.Metric, error) {
if b.tm.IsZero() {
b.tm = b.TimeFunc()
}
return b.metric, nil
}

55
metric/escape.go
View File

@ -1,55 +0,0 @@
package metric
import (
"strings"
)
var (
// escaper is for escaping:
// - tag keys
// - tag values
// - field keys
// see https://docs.influxdata.com/influxdb/v1.0/write_protocols/line_protocol_tutorial/#special-characters-and-keywords
escaper = strings.NewReplacer(`,`, `\,`, `"`, `\"`, ` `, `\ `, `=`, `\=`)
unEscaper = strings.NewReplacer(`\,`, `,`, `\"`, `"`, `\ `, ` `, `\=`, `=`)
// nameEscaper is for escaping measurement names only.
// see https://docs.influxdata.com/influxdb/v1.0/write_protocols/line_protocol_tutorial/#special-characters-and-keywords
nameEscaper = strings.NewReplacer(`,`, `\,`, ` `, `\ `)
nameUnEscaper = strings.NewReplacer(`\,`, `,`, `\ `, ` `)
// stringFieldEscaper is for escaping string field values only.
// see https://docs.influxdata.com/influxdb/v1.0/write_protocols/line_protocol_tutorial/#special-characters-and-keywords
stringFieldEscaper = strings.NewReplacer(
`"`, `\"`,
`\`, `\\`,
)
stringFieldUnEscaper = strings.NewReplacer(
`\"`, `"`,
`\\`, `\`,
)
)
func escape(s string, t string) string {
switch t {
case "fieldkey", "tagkey", "tagval":
return escaper.Replace(s)
case "name":
return nameEscaper.Replace(s)
case "fieldval":
return stringFieldEscaper.Replace(s)
}
return s
}
func unescape(s string, t string) string {
switch t {
case "fieldkey", "tagkey", "tagval":
return unEscaper.Replace(s)
case "name":
return nameUnEscaper.Replace(s)
case "fieldval":
return stringFieldUnEscaper.Replace(s)
}
return s
}

103
metric/inline_strconv_parse_test.go
View File

@ -1,103 +0,0 @@
package metric
import (
"strconv"
"testing"
"testing/quick"
)
func TestParseIntBytesEquivalenceFuzz(t *testing.T) {
f := func(b []byte, base int, bitSize int) bool {
exp, expErr := strconv.ParseInt(string(b), base, bitSize)
got, gotErr := parseIntBytes(b, base, bitSize)
return exp == got && checkErrs(expErr, gotErr)
}
cfg := &quick.Config{
MaxCount: 10000,
}
if err := quick.Check(f, cfg); err != nil {
t.Fatal(err)
}
}
func TestParseIntBytesValid64bitBase10EquivalenceFuzz(t *testing.T) {
buf := []byte{}
f := func(n int64) bool {
buf = strconv.AppendInt(buf[:0], n, 10)
exp, expErr := strconv.ParseInt(string(buf), 10, 64)
got, gotErr := parseIntBytes(buf, 10, 64)
return exp == got && checkErrs(expErr, gotErr)
}
cfg := &quick.Config{
MaxCount: 10000,
}
if err := quick.Check(f, cfg); err != nil {
t.Fatal(err)
}
}
func TestParseFloatBytesEquivalenceFuzz(t *testing.T) {
f := func(b []byte, bitSize int) bool {
exp, expErr := strconv.ParseFloat(string(b), bitSize)
got, gotErr := parseFloatBytes(b, bitSize)
return exp == got && checkErrs(expErr, gotErr)
}
cfg := &quick.Config{
MaxCount: 10000,
}
if err := quick.Check(f, cfg); err != nil {
t.Fatal(err)
}
}
func TestParseFloatBytesValid64bitEquivalenceFuzz(t *testing.T) {
buf := []byte{}
f := func(n float64) bool {
buf = strconv.AppendFloat(buf[:0], n, 'f', -1, 64)
exp, expErr := strconv.ParseFloat(string(buf), 64)
got, gotErr := parseFloatBytes(buf, 64)
return exp == got && checkErrs(expErr, gotErr)
}
cfg := &quick.Config{
MaxCount: 10000,
}
if err := quick.Check(f, cfg); err != nil {
t.Fatal(err)
}
}
func TestParseBoolBytesEquivalence(t *testing.T) {
var buf []byte
for _, s := range []string{"1", "t", "T", "TRUE", "true", "True", "0", "f", "F", "FALSE", "false", "False", "fail", "TrUe", "FAlSE", "numbers", ""} {
buf = append(buf[:0], s...)
exp, expErr := strconv.ParseBool(s)
got, gotErr := parseBoolBytes(buf)
if got != exp || !checkErrs(expErr, gotErr) {
t.Errorf("Failed to parse boolean value %q correctly: wanted (%t, %v), got (%t, %v)", s, exp, expErr, got, gotErr)
}
}
}
func checkErrs(a, b error) bool {
if (a == nil) != (b == nil) {
return false
}
return a == nil || a.Error() == b.Error()
}

791
metric/metric.go
View File

@ -1,12 +1,9 @@
package metric
import (
"bytes"
"fmt"
"hash/fnv"
"sort"
"strconv"
"strings"
"time"
"github.com/influxdata/telegraf"
@ -14,610 +11,282 @@ import (
const MaxInt = int(^uint(0) >> 1)
type metric struct {
name string
tags []*telegraf.Tag
fields []*telegraf.Field
tm time.Time
tp telegraf.ValueType
aggregate bool
}
func New(
name string,
tags map[string]string,
fields map[string]interface{},
t time.Time,
mType ...telegraf.ValueType,
tm time.Time,
tp ...telegraf.ValueType,
) (telegraf.Metric, error) {
if len(name) == 0 {
return nil, fmt.Errorf("missing measurement name")
}
if len(fields) == 0 {
return nil, fmt.Errorf("%s: must have one or more fields", name)
}
if strings.HasSuffix(name, `\`) {
return nil, fmt.Errorf("%s: measurement name cannot end with a backslash", name)
}
var thisType telegraf.ValueType
if len(mType) > 0 {
thisType = mType[0]
var vtype telegraf.ValueType
if len(tp) > 0 {
vtype = tp[0]
} else {
thisType = telegraf.Untyped
vtype = telegraf.Untyped
}
m := &metric{
name: []byte(escape(name, "name")),
t: []byte(fmt.Sprint(t.UnixNano())),
nsec: t.UnixNano(),
mType: thisType,
name: name,
tags: nil,
fields: nil,
tm: tm,
tp: vtype,
}
// pre-allocate exact size of the tags slice
taglen := 0
for k, v := range tags {
if strings.HasSuffix(k, `\`) {
return nil, fmt.Errorf("%s: tag key cannot end with a backslash: %s", name, k)
if len(tags) > 0 {
m.tags = make([]*telegraf.Tag, 0, len(tags))
for k, v := range tags {
m.tags = append(m.tags,
&telegraf.Tag{Key: k, Value: v})
}
if strings.HasSuffix(v, `\`) {
return nil, fmt.Errorf("%s: tag value cannot end with a backslash: %s", name, v)
}
if len(k) == 0 || len(v) == 0 {
continue
}
taglen += 2 + len(escape(k, "tagkey")) + len(escape(v, "tagval"))
}
m.tags = make([]byte, taglen)
i := 0
for k, v := range tags {
if len(k) == 0 || len(v) == 0 {
continue
}
m.tags[i] = ','
i++
i += copy(m.tags[i:], escape(k, "tagkey"))
m.tags[i] = '='
i++
i += copy(m.tags[i:], escape(v, "tagval"))
sort.Slice(m.tags, func(i, j int) bool { return m.tags[i].Key < m.tags[j].Key })
}
// pre-allocate capacity of the fields slice
fieldlen := 0
for k, _ := range fields {
if strings.HasSuffix(k, `\`) {
return nil, fmt.Errorf("%s: field key cannot end with a backslash: %s", name, k)
}
// 10 bytes is completely arbitrary, but will at least prevent some
// amount of allocations. There's a small possibility this will create
// slightly more allocations for a metric that has many short fields.
fieldlen += len(k) + 10
}
m.fields = make([]byte, 0, fieldlen)
i = 0
m.fields = make([]*telegraf.Field, 0, len(fields))
for k, v := range fields {
if i != 0 {
m.fields = append(m.fields, ',')
v := convertField(v)
if v == nil {
continue
}
m.fields = appendField(m.fields, k, v)
i++
m.AddField(k, v)
}
return m, nil
}
// indexUnescapedByte finds the index of the first byte equal to b in buf that
// is not escaped. Does not allow the escape char to be escaped. Returns -1 if
// not found.
func indexUnescapedByte(buf []byte, b byte) int {
var keyi int
for {
i := bytes.IndexByte(buf[keyi:], b)
if i == -1 {
return -1
} else if i == 0 {
break
}
keyi += i
if buf[keyi-1] != '\\' {
break
} else {
keyi++
}
}
return keyi
}
// indexUnescapedByteBackslashEscaping finds the index of the first byte equal
// to b in buf that is not escaped. Allows for the escape char `\` to be
// escaped. Returns -1 if not found.
func indexUnescapedByteBackslashEscaping(buf []byte, b byte) int {
var keyi int
for {
i := bytes.IndexByte(buf[keyi:], b)
if i == -1 {
return -1
} else if i == 0 {
break
}
keyi += i
if countBackslashes(buf, keyi-1)%2 == 0 {
break
} else {
keyi++
}
}
return keyi
}
// countBackslashes counts the number of preceding backslashes starting at
// the 'start' index.
func countBackslashes(buf []byte, index int) int {
var count int
for {
if index < 0 {
return count
}
if buf[index] == '\\' {
count++
index--
} else {
break
}
}
return count
}
type metric struct {
name []byte
tags []byte
fields []byte
t []byte
mType telegraf.ValueType
aggregate bool
// cached values for reuse in "get" functions
hashID uint64
nsec int64
}
func (m *metric) String() string {
return string(m.name) + string(m.tags) + " " + string(m.fields) + " " + string(m.t) + "\n"
return fmt.Sprintf("%s %v %v %d", m.name, m.Tags(), m.Fields(), m.tm.UnixNano())
}
func (m *metric) Name() string {
return m.name
}
func (m *metric) Tags() map[string]string {
tags := make(map[string]string, len(m.tags))
for _, tag := range m.tags {
tags[tag.Key] = tag.Value
}
return tags
}
func (m *metric) TagList() []*telegraf.Tag {
return m.tags
}
func (m *metric) Fields() map[string]interface{} {
fields := make(map[string]interface{}, len(m.fields))
for _, field := range m.fields {
fields[field.Key] = field.Value
}
return fields
}
func (m *metric) FieldList() []*telegraf.Field {
return m.fields
}
func (m *metric) Time() time.Time {
return m.tm
}
func (m *metric) Type() telegraf.ValueType {
return m.tp
}
func (m *metric) SetName(name string) {
m.name = name
}
func (m *metric) AddPrefix(prefix string) {
m.name = prefix + m.name
}
func (m *metric) AddSuffix(suffix string) {
m.name = m.name + suffix
}
func (m *metric) AddTag(key, value string) {
for i, tag := range m.tags {
if key > tag.Key {
continue
}
if key == tag.Key {
tag.Value = value
}
m.tags = append(m.tags, nil)
copy(m.tags[i+1:], m.tags[i:])
m.tags[i] = &telegraf.Tag{Key: key, Value: value}
return
}
m.tags = append(m.tags, &telegraf.Tag{Key: key, Value: value})
}
func (m *metric) HasTag(key string) bool {
for _, tag := range m.tags {
if tag.Key == key {
return true
}
}
return false
}
func (m *metric) GetTag(key string) (string, bool) {
for _, tag := range m.tags {
if tag.Key == key {
return tag.Value, true
}
}
return "", false
}
func (m *metric) RemoveTag(key string) {
for i, tag := range m.tags {
if tag.Key == key {
copy(m.tags[i:], m.tags[i+1:])
m.tags[len(m.tags)-1] = nil
m.tags = m.tags[:len(m.tags)-1]
return
}
}
}
func (m *metric) AddField(key string, value interface{}) {
for i, field := range m.fields {
if key == field.Key {
m.fields[i] = &telegraf.Field{Key: key, Value: convertField(value)}
}
}
m.fields = append(m.fields, &telegraf.Field{Key: key, Value: convertField(value)})
}
func (m *metric) HasField(key string) bool {
for _, field := range m.fields {
if field.Key == key {
return true
}
}
return false
}
func (m *metric) GetField(key string) (interface{}, bool) {
for _, field := range m.fields {
if field.Key == key {
return field.Value, true
}
}
return nil, false
}
func (m *metric) RemoveField(key string) {
for i, field := range m.fields {
if field.Key == key {
copy(m.fields[i:], m.fields[i+1:])
m.fields[len(m.fields)-1] = nil
m.fields = m.fields[:len(m.fields)-1]
return
}
}
}
func (m *metric) Copy() telegraf.Metric {
m2 := &metric{
name: m.name,
tags: make([]*telegraf.Tag, len(m.tags)),
fields: make([]*telegraf.Field, len(m.fields)),
tm: m.tm,
tp: m.tp,
aggregate: m.aggregate,
}
for i, tag := range m.tags {
m2.tags[i] = tag
}
for i, field := range m.fields {
m2.fields[i] = field
}
return m2
}
func (m *metric) SetAggregate(b bool) {
m.aggregate = b
m.aggregate = true
}
func (m *metric) IsAggregate() bool {
return m.aggregate
}
func (m *metric) Type() telegraf.ValueType {
return m.mType
}
func (m *metric) Len() int {
// 3 is for 2 spaces surrounding the fields array + newline at the end.
return len(m.name) + len(m.tags) + len(m.fields) + len(m.t) + 3
}
func (m *metric) Serialize() []byte {
tmp := make([]byte, m.Len())
i := 0
i += copy(tmp[i:], m.name)
i += copy(tmp[i:], m.tags)
tmp[i] = ' '
i++
i += copy(tmp[i:], m.fields)
tmp[i] = ' '
i++
i += copy(tmp[i:], m.t)
tmp[i] = '\n'
return tmp
}
func (m *metric) SerializeTo(dst []byte) int {
i := 0
if i >= len(dst) {
return i
}
i += copy(dst[i:], m.name)
if i >= len(dst) {
return i
}
i += copy(dst[i:], m.tags)
if i >= len(dst) {
return i
}
dst[i] = ' '
i++
if i >= len(dst) {
return i
}
i += copy(dst[i:], m.fields)
if i >= len(dst) {
return i
}
dst[i] = ' '
i++
if i >= len(dst) {
return i
}
i += copy(dst[i:], m.t)
if i >= len(dst) {
return i
}
dst[i] = '\n'
return i + 1
}
func (m *metric) Split(maxSize int) []telegraf.Metric {
if m.Len() <= maxSize {
return []telegraf.Metric{m}
}
var out []telegraf.Metric
// constant number of bytes for each metric (in addition to field bytes)
constant := len(m.name) + len(m.tags) + len(m.t) + 3
// currently selected fields
fields := make([]byte, 0, maxSize)
i := 0
for {
if i >= len(m.fields) {
// hit the end of the field byte slice
if len(fields) > 0 {
out = append(out, copyWith(m.name, m.tags, fields, m.t))
}
break
}
// find the end of the next field
j := indexUnescapedByte(m.fields[i:], ',')
if j == -1 {
j = len(m.fields)
} else {
j += i
}
// if true, then we need to create a metric _not_ including the currently
// selected field
if len(m.fields[i:j])+len(fields)+constant >= maxSize {
// if false, then we'll create a metric including the currently
// selected field anyways. This means that the given maxSize is too
// small for a single field to fit.
if len(fields) > 0 {
out = append(out, copyWith(m.name, m.tags, fields, m.t))
}
fields = make([]byte, 0, maxSize)
}
if len(fields) > 0 {
fields = append(fields, ',')
}
fields = append(fields, m.fields[i:j]...)
i = j + 1
}
return out
}
func (m *metric) Fields() map[string]interface{} {
fieldMap := map[string]interface{}{}
i := 0
for {
if i >= len(m.fields) {
break
}
// end index of field key
i1 := indexUnescapedByte(m.fields[i:], '=')
if i1 == -1 {
break
}
// start index of field value
i2 := i1 + 1
// end index of field value
var i3 int
if m.fields[i:][i2] == '"' {
i3 = indexUnescapedByteBackslashEscaping(m.fields[i:][i2+1:], '"')
if i3 == -1 {
i3 = len(m.fields[i:])
}
i3 += i2 + 2 // increment index to the comma
} else {
i3 = indexUnescapedByte(m.fields[i:], ',')
if i3 == -1 {
i3 = len(m.fields[i:])
}
}
switch m.fields[i:][i2] {
case '"':
// string field
fieldMap[unescape(string(m.fields[i:][0:i1]), "fieldkey")] = unescape(string(m.fields[i:][i2+1:i3-1]), "fieldval")
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
// number field
switch m.fields[i:][i3-1] {
case 'i':
// integer field
n, err := parseIntBytes(m.fields[i:][i2:i3-1], 10, 64)
if err == nil {
fieldMap[unescape(string(m.fields[i:][0:i1]), "fieldkey")] = n
} else {
// TODO handle error or just ignore field silently?
}
default:
// float field
n, err := parseFloatBytes(m.fields[i:][i2:i3], 64)
if err == nil {
fieldMap[unescape(string(m.fields[i:][0:i1]), "fieldkey")] = n
} else {
// TODO handle error or just ignore field silently?
}
}
case 'T', 't':
fieldMap[unescape(string(m.fields[i:][0:i1]), "fieldkey")] = true
case 'F', 'f':
fieldMap[unescape(string(m.fields[i:][0:i1]), "fieldkey")] = false
default:
// TODO handle unsupported field type
}
i += i3 + 1
}
return fieldMap
}
func (m *metric) Tags() map[string]string {
tagMap := map[string]string{}
if len(m.tags) == 0 {
return tagMap
}
i := 0
for {
// start index of tag key
i0 := indexUnescapedByte(m.tags[i:], ',') + 1
if i0 == 0 {
// didn't find a tag start
break
}
// end index of tag key
i1 := indexUnescapedByte(m.tags[i:], '=')
// start index of tag value
i2 := i1 + 1
// end index of tag value (starting from i2)
i3 := indexUnescapedByte(m.tags[i+i2:], ',')
if i3 == -1 {
tagMap[unescape(string(m.tags[i:][i0:i1]), "tagkey")] = unescape(string(m.tags[i:][i2:]), "tagval")
break
}
tagMap[unescape(string(m.tags[i:][i0:i1]), "tagkey")] = unescape(string(m.tags[i:][i2:i2+i3]), "tagval")
// increment start index for the next tag
i += i2 + i3
}
return tagMap
}
func (m *metric) Name() string {
return unescape(string(m.name), "name")
}
func (m *metric) Time() time.Time {
// assume metric has been verified already and ignore error:
if m.nsec == 0 {
m.nsec, _ = parseIntBytes(m.t, 10, 64)
}
return time.Unix(0, m.nsec)
}
func (m *metric) UnixNano() int64 {
// assume metric has been verified already and ignore error:
if m.nsec == 0 {
m.nsec, _ = parseIntBytes(m.t, 10, 64)
}
return m.nsec
}
func (m *metric) SetName(name string) {
m.hashID = 0
m.name = []byte(nameEscaper.Replace(name))
}
func (m *metric) SetPrefix(prefix string) {
m.hashID = 0
m.name = append([]byte(nameEscaper.Replace(prefix)), m.name...)
}
func (m *metric) SetSuffix(suffix string) {
m.hashID = 0
m.name = append(m.name, []byte(nameEscaper.Replace(suffix))...)
}
func (m *metric) AddTag(key, value string) {
m.RemoveTag(key)
m.tags = append(m.tags, []byte(","+escape(key, "tagkey")+"="+escape(value, "tagval"))...)
}
func (m *metric) HasTag(key string) bool {
i := bytes.Index(m.tags, []byte(escape(key, "tagkey")+"="))
if i == -1 {
return false
}
return true
}
func (m *metric) RemoveTag(key string) {
m.hashID = 0
i := bytes.Index(m.tags, []byte(escape(key, "tagkey")+"="))
if i == -1 {
return
}
tmp := m.tags[0 : i-1]
j := indexUnescapedByte(m.tags[i:], ',')
if j != -1 {
tmp = append(tmp, m.tags[i+j:]...)
}
m.tags = tmp
return
}
func (m *metric) AddField(key string, value interface{}) {
m.fields = append(m.fields, ',')
m.fields = appendField(m.fields, key, value)
}
func (m *metric) HasField(key string) bool {
i := bytes.Index(m.fields, []byte(escape(key, "tagkey")+"="))
if i == -1 {
return false
}
return true
}
func (m *metric) RemoveField(key string) error {
i := bytes.Index(m.fields, []byte(escape(key, "tagkey")+"="))
if i == -1 {
return nil
}
var tmp []byte
if i != 0 {
tmp = m.fields[0 : i-1]
}
j := indexUnescapedByte(m.fields[i:], ',')
if j != -1 {
tmp = append(tmp, m.fields[i+j:]...)
}
if len(tmp) == 0 {
return fmt.Errorf("Metric cannot remove final field: %s", m.fields)
}
m.fields = tmp
return nil
}
func (m *metric) Copy() telegraf.Metric {
return copyWith(m.name, m.tags, m.fields, m.t)
}
func copyWith(name, tags, fields, t []byte) telegraf.Metric {
out := metric{
name: make([]byte, len(name)),
tags: make([]byte, len(tags)),
fields: make([]byte, len(fields)),
t: make([]byte, len(t)),
}
copy(out.name, name)
copy(out.tags, tags)
copy(out.fields, fields)
copy(out.t, t)
return &out
}
func (m *metric) HashID() uint64 {
if m.hashID == 0 {
h := fnv.New64a()
h.Write(m.name)
tags := m.Tags()
tmp := make([]string, len(tags))
i := 0
for k, v := range tags {
tmp[i] = k + v
i++
}
sort.Strings(tmp)
for _, s := range tmp {
h.Write([]byte(s))
}
m.hashID = h.Sum64()
h := fnv.New64a()
h.Write([]byte(m.name))
for _, tag := range m.tags {
h.Write([]byte(tag.Key))
h.Write([]byte(tag.Value))
}
return m.hashID
return h.Sum64()
}
func appendField(b []byte, k string, v interface{}) []byte {
if v == nil {
return b
}
b = append(b, []byte(escape(k, "tagkey")+"=")...)
// check popular types first
// Convert field to a supported type or nil if unconvertible
func convertField(v interface{}) interface{} {
switch v := v.(type) {
case float64:
b = strconv.AppendFloat(b, v, 'f', -1, 64)
return v
case int64:
b = strconv.AppendInt(b, v, 10)
b = append(b, 'i')
return v
case string:
b = append(b, '"')
b = append(b, []byte(escape(v, "fieldval"))...)
b = append(b, '"')
if v == "" {
return nil
} else {
return v
}
case bool:
b = strconv.AppendBool(b, v)
case int32:
b = strconv.AppendInt(b, int64(v), 10)
b = append(b, 'i')
case int16:
b = strconv.AppendInt(b, int64(v), 10)
b = append(b, 'i')
case int8:
b = strconv.AppendInt(b, int64(v), 10)
b = append(b, 'i')
return v
case int:
b = strconv.AppendInt(b, int64(v), 10)
b = append(b, 'i')
case uint64:
// Cap uints above the maximum int value
var intv int64
if v <= uint64(MaxInt) {
intv = int64(v)
} else {
intv = int64(MaxInt)
}
b = strconv.AppendInt(b, intv, 10)
b = append(b, 'i')
case uint32:
b = strconv.AppendInt(b, int64(v), 10)
b = append(b, 'i')
case uint16:
b = strconv.AppendInt(b, int64(v), 10)
b = append(b, 'i')
case uint8:
b = strconv.AppendInt(b, int64(v), 10)
b = append(b, 'i')
return int64(v)
case uint:
// Cap uints above the maximum int value
var intv int64
if v <= uint(MaxInt) {
intv = int64(v)
return int64(v)
} else {
intv = int64(MaxInt)
return int64(MaxInt)
}
case uint64:
if v <= uint64(MaxInt) {
return int64(v)
} else {
return int64(MaxInt)
}
b = strconv.AppendInt(b, intv, 10)
b = append(b, 'i')
case float32:
b = strconv.AppendFloat(b, float64(v), 'f', -1, 32)
case []byte:
b = append(b, v...)
return string(v)
case int32:
return int64(v)
case int16:
return int64(v)
case int8:
return int64(v)
case uint32:
return int64(v)
case uint16:
return int64(v)
case uint8:
return int64(v)
case float32:
return float64(v)
default:
// Can't determine the type, so convert to string
b = append(b, '"')
b = append(b, []byte(escape(fmt.Sprintf("%v", v), "fieldval"))...)
b = append(b, '"')
return nil
}
return b
}

148
metric/metric_benchmark_test.go
View File

@ -1,148 +0,0 @@
package metric
import (
"fmt"
"testing"
"time"
"github.com/influxdata/telegraf"
)
// vars for making sure that the compiler doesnt optimize out the benchmarks:
var (
s string
I interface{}
tags map[string]string
fields map[string]interface{}
)
func BenchmarkNewMetric(b *testing.B) {
var mt telegraf.Metric
for n := 0; n < b.N; n++ {
mt, _ = New("test_metric",
map[string]string{
"test_tag_1": "tag_value_1",
"test_tag_2": "tag_value_2",
"test_tag_3": "tag_value_3",
},
map[string]interface{}{
"string_field": "string",
"int_field": int64(1000),
"float_field": float64(2.1),
},
time.Now(),
)
}
s = string(mt.String())
}
func BenchmarkAddTag(b *testing.B) {
var mt telegraf.Metric
mt = &metric{
name: []byte("cpu"),
tags: []byte(",host=localhost"),
fields: []byte("a=101"),
t: []byte("1480614053000000000"),
}
for n := 0; n < b.N; n++ {
mt.AddTag("foo", "bar")
}
s = string(mt.String())
}
func BenchmarkSplit(b *testing.B) {
var mt telegraf.Metric
mt = &metric{
name: []byte("cpu"),
tags: []byte(",host=localhost"),
fields: []byte("a=101,b=10i,c=10101,d=101010,e=42"),
t: []byte("1480614053000000000"),
}
var metrics []telegraf.Metric
for n := 0; n < b.N; n++ {
metrics = mt.Split(60)
}
s = string(metrics[0].String())
}
func BenchmarkTags(b *testing.B) {
for n := 0; n < b.N; n++ {
var mt, _ = New("test_metric",
map[string]string{
"test_tag_1": "tag_value_1",
"test_tag_2": "tag_value_2",
"test_tag_3": "tag_value_3",
},
map[string]interface{}{
"string_field": "string",
"int_field": int64(1000),
"float_field": float64(2.1),
},
time.Now(),
)
tags = mt.Tags()
}
s = fmt.Sprint(tags)
}
func BenchmarkFields(b *testing.B) {
for n := 0; n < b.N; n++ {
var mt, _ = New("test_metric",
map[string]string{
"test_tag_1": "tag_value_1",
"test_tag_2": "tag_value_2",
"test_tag_3": "tag_value_3",
},
map[string]interface{}{
"string_field": "string",
"int_field": int64(1000),
"float_field": float64(2.1),
},
time.Now(),
)
fields = mt.Fields()
}
s = fmt.Sprint(fields)
}
func BenchmarkString(b *testing.B) {
mt, _ := New("test_metric",
map[string]string{
"test_tag_1": "tag_value_1",
"test_tag_2": "tag_value_2",
"test_tag_3": "tag_value_3",
},
map[string]interface{}{
"string_field": "string",
"int_field": int64(1000),
"float_field": float64(2.1),
},
time.Now(),
)
var S string
for n := 0; n < b.N; n++ {
S = mt.String()
}
s = S
}
func BenchmarkSerialize(b *testing.B) {
mt, _ := New("test_metric",
map[string]string{
"test_tag_1": "tag_value_1",
"test_tag_2": "tag_value_2",
"test_tag_3": "tag_value_3",
},
map[string]interface{}{
"string_field": "string",
"int_field": int64(1000),
"float_field": float64(2.1),
},
time.Now(),
)
var B []byte
for n := 0; n < b.N; n++ {
B = mt.Serialize()
}
s = string(B)
}

843
metric/metric_test.go
View File

@ -1,14 +1,10 @@
package metric
import (
"fmt"
"math"
"regexp"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
@ -25,102 +21,184 @@ func TestNewMetric(t *testing.T) {
"usage_busy": float64(1),
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
require.NoError(t, err)
assert.Equal(t, telegraf.Untyped, m.Type())
assert.Equal(t, tags, m.Tags())
assert.Equal(t, fields, m.Fields())
assert.Equal(t, "cpu", m.Name())
assert.Equal(t, now.UnixNano(), m.Time().UnixNano())
assert.Equal(t, now.UnixNano(), m.UnixNano())
require.Equal(t, "cpu", m.Name())
require.Equal(t, tags, m.Tags())
require.Equal(t, fields, m.Fields())
require.Equal(t, 2, len(m.FieldList()))
require.Equal(t, now, m.Time())
}
func TestNewErrors(t *testing.T) {
// creating a metric with an empty name produces an error:
m, err := New(
"",
map[string]string{
"datacenter": "us-east-1",
"mytag": "foo",
"another": "tag",
},
map[string]interface{}{
"value": float64(1),
},
time.Now(),
)
assert.Error(t, err)
assert.Nil(t, m)
// creating a metric with empty fields produces an error:
m, err = New(
"foobar",
map[string]string{
"datacenter": "us-east-1",
"mytag": "foo",
"another": "tag",
},
map[string]interface{}{},
time.Now(),
)
assert.Error(t, err)
assert.Nil(t, m)
}
func TestNewMetric_Tags(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
"datacenter": "us-east-1",
}
func baseMetric() telegraf.Metric {
tags := map[string]string{}
fields := map[string]interface{}{
"value": float64(1),
}
now := time.Now()
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
if err != nil {
panic(err)
}
return m
}
assert.True(t, m.HasTag("host"))
assert.True(t, m.HasTag("datacenter"))
func TestHasTag(t *testing.T) {
m := baseMetric()
m.AddTag("newtag", "foo")
assert.True(t, m.HasTag("newtag"))
require.False(t, m.HasTag("host"))
m.AddTag("host", "localhost")
require.True(t, m.HasTag("host"))
m.RemoveTag("host")
require.False(t, m.HasTag("host"))
}
func TestAddTagOverwrites(t *testing.T) {
m := baseMetric()
m.AddTag("host", "localhost")
m.AddTag("host", "example.org")
value, ok := m.GetTag("host")
require.True(t, ok)
require.Equal(t, "example.org", value)
}
func TestRemoveTagNoEffectOnMissingTags(t *testing.T) {
m := baseMetric()
m.RemoveTag("foo")
m.AddTag("a", "x")
m.RemoveTag("foo")
m.RemoveTag("bar")
value, ok := m.GetTag("a")
require.True(t, ok)
require.Equal(t, "x", value)
}
func TestGetTag(t *testing.T) {
m := baseMetric()
value, ok := m.GetTag("host")
require.False(t, ok)
m.AddTag("host", "localhost")
value, ok = m.GetTag("host")
require.True(t, ok)
require.Equal(t, "localhost", value)
m.RemoveTag("host")
assert.False(t, m.HasTag("host"))
assert.True(t, m.HasTag("newtag"))
assert.True(t, m.HasTag("datacenter"))
m.RemoveTag("datacenter")
assert.False(t, m.HasTag("datacenter"))
assert.True(t, m.HasTag("newtag"))
assert.Equal(t, map[string]string{"newtag": "foo"}, m.Tags())
m.RemoveTag("newtag")
assert.False(t, m.HasTag("newtag"))
assert.Equal(t, map[string]string{}, m.Tags())
assert.Equal(t, "cpu value=1 "+fmt.Sprint(now.UnixNano())+"\n", m.String())
value, ok = m.GetTag("host")
require.False(t, ok)
}
func TestSerialize(t *testing.T) {
func TestHasField(t *testing.T) {
m := baseMetric()
require.False(t, m.HasField("x"))
m.AddField("x", 42.0)
require.True(t, m.HasField("x"))
m.RemoveTag("x")
require.False(t, m.HasTag("x"))
}
func TestAddFieldOverwrites(t *testing.T) {
m := baseMetric()
m.AddField("value", 1.0)
m.AddField("value", 42.0)
value, ok := m.GetField("value")
require.True(t, ok)
require.Equal(t, 42.0, value)
}
func TestAddFieldChangesType(t *testing.T) {
m := baseMetric()
m.AddField("value", 1.0)
m.AddField("value", "xyzzy")
value, ok := m.GetField("value")
require.True(t, ok)
require.Equal(t, "xyzzy", value)
}
func TestRemoveFieldNoEffectOnMissingFields(t *testing.T) {
m := baseMetric()
m.RemoveField("foo")
m.AddField("a", "x")
m.RemoveField("foo")
m.RemoveField("bar")
value, ok := m.GetField("a")
require.True(t, ok)
require.Equal(t, "x", value)
}
func TestGetField(t *testing.T) {
m := baseMetric()
value, ok := m.GetField("foo")
require.False(t, ok)
m.AddField("foo", "bar")
value, ok = m.GetField("foo")
require.True(t, ok)
require.Equal(t, "bar", value)
m.RemoveTag("foo")
value, ok = m.GetTag("foo")
require.False(t, ok)
}
func TestTagList_Sorted(t *testing.T) {
m := baseMetric()
m.AddTag("b", "y")
m.AddTag("c", "z")
m.AddTag("a", "x")
taglist := m.TagList()
require.Equal(t, "a", taglist[0].Key)
require.Equal(t, "b", taglist[1].Key)
require.Equal(t, "c", taglist[2].Key)
}
func TestEquals(t *testing.T) {
now := time.Now()
tags := map[string]string{
"datacenter": "us-east-1",
}
fields := map[string]interface{}{
"value": float64(1),
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
m1, err := New("cpu",
map[string]string{
"host": "localhost",
},
map[string]interface{}{
"value": 42.0,
},
now,
)
require.NoError(t, err)
assert.Equal(t,
[]byte("cpu,datacenter=us-east-1 value=1 "+fmt.Sprint(now.UnixNano())+"\n"),
m.Serialize())
m2, err := New("cpu",
map[string]string{
"host": "localhost",
},
map[string]interface{}{
"value": 42.0,
},
now,
)
require.NoError(t, err)
m.RemoveTag("datacenter")
assert.Equal(t,
[]byte("cpu value=1 "+fmt.Sprint(now.UnixNano())+"\n"),
m.Serialize())
lhs := m1.(*metric)
require.Equal(t, lhs, m2)
m3 := m2.Copy()
require.Equal(t, lhs, m3)
m3.AddTag("a", "x")
require.NotEqual(t, lhs, m3)
}
func TestHashID(t *testing.T) {
@ -171,567 +249,62 @@ func TestHashID_Consistency(t *testing.T) {
)
hash := m.HashID()
for i := 0; i < 1000; i++ {
m2, _ := New(
"cpu",
map[string]string{
"datacenter": "us-east-1",
"mytag": "foo",
"another": "tag",
},
map[string]interface{}{
"value": float64(1),
},
time.Now(),
)
assert.Equal(t, hash, m2.HashID())
}
m2, _ := New(
"cpu",
map[string]string{
"datacenter": "us-east-1",
"mytag": "foo",
"another": "tag",
},
map[string]interface{}{
"value": float64(1),
},
time.Now(),
)
assert.Equal(t, hash, m2.HashID())
m3 := m.Copy()
assert.Equal(t, m2.HashID(), m3.HashID())
}
func TestNewMetric_NameModifiers(t *testing.T) {
func TestSetName(t *testing.T) {
m := baseMetric()
m.SetName("foo")
require.Equal(t, "foo", m.Name())
}
func TestAddPrefix(t *testing.T) {
m := baseMetric()
m.AddPrefix("foo_")
require.Equal(t, "foo_cpu", m.Name())
m.AddPrefix("foo_")
require.Equal(t, "foo_foo_cpu", m.Name())
}
func TestAddSuffix(t *testing.T) {
m := baseMetric()
m.AddSuffix("_foo")
require.Equal(t, "cpu_foo", m.Name())
m.AddSuffix("_foo")
require.Equal(t, "cpu_foo_foo", m.Name())
}
func TestValueType(t *testing.T) {
now := time.Now()
tags := map[string]string{}
fields := map[string]interface{}{
"value": float64(1),
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
hash := m.HashID()
suffix := fmt.Sprintf(" value=1 %d\n", now.UnixNano())
assert.Equal(t, "cpu"+suffix, m.String())
m.SetPrefix("pre_")
assert.NotEqual(t, hash, m.HashID())
hash = m.HashID()
assert.Equal(t, "pre_cpu"+suffix, m.String())
m.SetSuffix("_post")
assert.NotEqual(t, hash, m.HashID())
hash = m.HashID()
assert.Equal(t, "pre_cpu_post"+suffix, m.String())
m.SetName("mem")
assert.NotEqual(t, hash, m.HashID())
assert.Equal(t, "mem"+suffix, m.String())
}
func TestNewMetric_FieldModifiers(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"value": float64(1),
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
assert.True(t, m.HasField("value"))
assert.False(t, m.HasField("foo"))
m.AddField("newfield", "foo")
assert.True(t, m.HasField("newfield"))
assert.NoError(t, m.RemoveField("newfield"))
assert.False(t, m.HasField("newfield"))
// don't allow user to remove all fields:
assert.Error(t, m.RemoveField("value"))
m.AddField("value2", int64(101))
assert.NoError(t, m.RemoveField("value"))
assert.False(t, m.HasField("value"))
}
func TestNewMetric_Fields(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"float": float64(1),
"int": int64(1),
"bool": true,
"false": false,
"string": "test",
"quote_string": `x"y`,
"backslash_quote_string": `x\"y`,
"backslash": `x\y`,
"ends_with_backslash": `x\`,
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
assert.Equal(t, fields, m.Fields())
}
func TestNewMetric_Time(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"float": float64(1),
"int": int64(1),
"bool": true,
"false": false,
"string": "test",
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
m = m.Copy()
m2 := m.Copy()
assert.Equal(t, now.UnixNano(), m.Time().UnixNano())
assert.Equal(t, now.UnixNano(), m2.UnixNano())
}
func TestNewMetric_Copy(t *testing.T) {
now := time.Now()
tags := map[string]string{}
fields := map[string]interface{}{
"float": float64(1),
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
m2 := m.Copy()
assert.Equal(t,
fmt.Sprintf("cpu float=1 %d\n", now.UnixNano()),
m.String())
m.AddTag("host", "localhost")
assert.Equal(t,
fmt.Sprintf("cpu,host=localhost float=1 %d\n", now.UnixNano()),
m.String())
assert.Equal(t,
fmt.Sprintf("cpu float=1 %d\n", now.UnixNano()),
m2.String())
}
func TestNewMetric_AllTypes(t *testing.T) {
now := time.Now()
tags := map[string]string{}
fields := map[string]interface{}{
"float64": float64(1),
"float32": float32(1),
"int64": int64(1),
"int32": int32(1),
"int16": int16(1),
"int8": int8(1),
"int": int(1),
"uint64": uint64(1),
"uint32": uint32(1),
"uint16": uint16(1),
"uint8": uint8(1),
"uint": uint(1),
"bytes": []byte("foo"),
"nil": nil,
"maxuint64": uint64(MaxInt) + 10,
"maxuint": uint(MaxInt) + 10,
"unsupported": []int{1, 2},
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
assert.Contains(t, m.String(), "float64=1")
assert.Contains(t, m.String(), "float32=1")
assert.Contains(t, m.String(), "int64=1i")
assert.Contains(t, m.String(), "int32=1i")
assert.Contains(t, m.String(), "int16=1i")
assert.Contains(t, m.String(), "int8=1i")
assert.Contains(t, m.String(), "int=1i")
assert.Contains(t, m.String(), "uint64=1i")
assert.Contains(t, m.String(), "uint32=1i")
assert.Contains(t, m.String(), "uint16=1i")
assert.Contains(t, m.String(), "uint8=1i")
assert.Contains(t, m.String(), "uint=1i")
assert.NotContains(t, m.String(), "nil")
assert.Contains(t, m.String(), fmt.Sprintf("maxuint64=%di", MaxInt))
assert.Contains(t, m.String(), fmt.Sprintf("maxuint=%di", MaxInt))
}
func TestIndexUnescapedByte(t *testing.T) {
tests := []struct {
in []byte
b byte
expected int
}{
{
in: []byte(`foobar`),
b: 'b',
expected: 3,
},
{
in: []byte(`foo\bar`),
b: 'b',
expected: -1,
},
{
in: []byte(`foo\\bar`),
b: 'b',
expected: -1,
},
{
in: []byte(`foobar`),
b: 'f',
expected: 0,
},
{
in: []byte(`foobar`),
b: 'r',
expected: 5,
},
{
in: []byte(`\foobar`),
b: 'f',
expected: -1,
},
}
for _, test := range tests {
got := indexUnescapedByte(test.in, test.b)
assert.Equal(t, test.expected, got)
}
}
func TestNewGaugeMetric(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
"datacenter": "us-east-1",
}
fields := map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
"value": float64(42),
}
m, err := New("cpu", tags, fields, now, telegraf.Gauge)
assert.NoError(t, err)
assert.Equal(t, telegraf.Gauge, m.Type())
assert.Equal(t, tags, m.Tags())
assert.Equal(t, fields, m.Fields())
assert.Equal(t, "cpu", m.Name())
assert.Equal(t, now.UnixNano(), m.Time().UnixNano())
assert.Equal(t, now.UnixNano(), m.UnixNano())
}
func TestNewCounterMetric(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
"datacenter": "us-east-1",
}
fields := map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
}
m, err := New("cpu", tags, fields, now, telegraf.Counter)
assert.NoError(t, err)
assert.Equal(t, telegraf.Counter, m.Type())
assert.Equal(t, tags, m.Tags())
assert.Equal(t, fields, m.Fields())
assert.Equal(t, "cpu", m.Name())
assert.Equal(t, now.UnixNano(), m.Time().UnixNano())
assert.Equal(t, now.UnixNano(), m.UnixNano())
}
// test splitting metric into various max lengths
func TestSplitMetric(t *testing.T) {
now := time.Unix(0, 1480940990034083306)
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"float": float64(100001),
"int": int64(100001),
"bool": true,
"false": false,
"string": "test",
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
split80 := m.Split(80)
assert.Len(t, split80, 2)
split70 := m.Split(70)
assert.Len(t, split70, 3)
split60 := m.Split(60)
assert.Len(t, split60, 5)
}
// test splitting metric into various max lengths
// use a simple regex check to verify that the split metrics are valid
func TestSplitMetric_RegexVerify(t *testing.T) {
now := time.Unix(0, 1480940990034083306)
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"foo": float64(98934259085),
"bar": float64(19385292),
"number": float64(19385292),
"another": float64(19385292),
"n": float64(19385292),
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
// verification regex
re := regexp.MustCompile(`cpu,host=localhost \w+=\d+(,\w+=\d+)* 1480940990034083306`)
split90 := m.Split(90)
assert.Len(t, split90, 2)
for _, splitM := range split90 {
assert.True(t, re.Match(splitM.Serialize()), splitM.String())
}
split70 := m.Split(70)
assert.Len(t, split70, 3)
for _, splitM := range split70 {
assert.True(t, re.Match(splitM.Serialize()), splitM.String())
}
split20 := m.Split(20)
assert.Len(t, split20, 5)
for _, splitM := range split20 {
assert.True(t, re.Match(splitM.Serialize()), splitM.String())
}
}
// test splitting metric even when given length is shorter than
// shortest possible length
// Split should split metric as short as possible, ie, 1 field per metric
func TestSplitMetric_TooShort(t *testing.T) {
now := time.Unix(0, 1480940990034083306)
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"float": float64(100001),
"int": int64(100001),
"bool": true,
"false": false,
"string": "test",
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
split := m.Split(10)
assert.Len(t, split, 5)
strings := make([]string, 5)
for i, splitM := range split {
strings[i] = splitM.String()
}
assert.Contains(t, strings, "cpu,host=localhost float=100001 1480940990034083306\n")
assert.Contains(t, strings, "cpu,host=localhost int=100001i 1480940990034083306\n")
assert.Contains(t, strings, "cpu,host=localhost bool=true 1480940990034083306\n")
assert.Contains(t, strings, "cpu,host=localhost false=false 1480940990034083306\n")
assert.Contains(t, strings, "cpu,host=localhost string=\"test\" 1480940990034083306\n")
}
func TestSplitMetric_NoOp(t *testing.T) {
now := time.Unix(0, 1480940990034083306)
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"float": float64(100001),
"int": int64(100001),
"bool": true,
"false": false,
"string": "test",
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
split := m.Split(1000)
assert.Len(t, split, 1)
assert.Equal(t, m, split[0])
}
func TestSplitMetric_OneField(t *testing.T) {
now := time.Unix(0, 1480940990034083306)
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"float": float64(100001),
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
assert.Equal(t, "cpu,host=localhost float=100001 1480940990034083306\n", m.String())
split := m.Split(1000)
assert.Len(t, split, 1)
assert.Equal(t, "cpu,host=localhost float=100001 1480940990034083306\n", split[0].String())
split = m.Split(1)
assert.Len(t, split, 1)
assert.Equal(t, "cpu,host=localhost float=100001 1480940990034083306\n", split[0].String())
split = m.Split(40)
assert.Len(t, split, 1)
assert.Equal(t, "cpu,host=localhost float=100001 1480940990034083306\n", split[0].String())
}
func TestSplitMetric_ExactSize(t *testing.T) {
now := time.Unix(0, 1480940990034083306)
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"float": float64(100001),
"int": int64(100001),
"bool": true,
"false": false,
"string": "test",
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
actual := m.Split(m.Len())
// check that no copy was made
require.Equal(t, &m, &actual[0])
}
func TestSplitMetric_NoRoomForNewline(t *testing.T) {
now := time.Unix(0, 1480940990034083306)
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"float": float64(100001),
"int": int64(100001),
"bool": true,
"false": false,
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
actual := m.Split(m.Len() - 1)
require.Equal(t, 2, len(actual))
}
func TestNewMetricAggregate(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"usage_idle": float64(99),
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
assert.False(t, m.IsAggregate())
m.SetAggregate(true)
assert.True(t, m.IsAggregate())
}
func TestNewMetricString(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"usage_idle": float64(99),
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
lineProto := fmt.Sprintf("cpu,host=localhost usage_idle=99 %d\n",
now.UnixNano())
assert.Equal(t, lineProto, m.String())
}
func TestNewMetricFailNaN(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"usage_idle": math.NaN(),
}
_, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
}
func TestEmptyTagValueOrKey(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
"emptytag": "",
"": "valuewithoutkey",
}
fields := map[string]interface{}{
"usage_idle": float64(99),
}
m, err := New("cpu", tags, fields, now)
assert.True(t, m.HasTag("host"))
assert.False(t, m.HasTag("emptytag"))
assert.Equal(t,
fmt.Sprintf("cpu,host=localhost usage_idle=99 %d\n", now.UnixNano()),
m.String())
assert.NoError(t, err)
}
func TestNewMetric_TrailingSlash(t *testing.T) {
now := time.Now()
tests := []struct {
name string
tags map[string]string
fields map[string]interface{}
}{
{
name: `cpu\`,
fields: map[string]interface{}{
"value": int64(42),
},
},
{
name: "cpu",
fields: map[string]interface{}{
`value\`: "x",
},
},
{
name: "cpu",
tags: map[string]string{
`host\`: "localhost",
},
fields: map[string]interface{}{
"value": int64(42),
},
},
{
name: "cpu",
tags: map[string]string{
"host": `localhost\`,
},
fields: map[string]interface{}{
"value": int64(42),
},
},
}
for _, tc := range tests {
_, err := New(tc.name, tc.tags, tc.fields, now)
assert.Error(t, err)
}
func TestCopyAggreate(t *testing.T) {
m1 := baseMetric()
m1.SetAggregate(true)
m2 := m1.Copy()
assert.True(t, m2.IsAggregate())
}

680
metric/parse.go
View File

@ -1,680 +0,0 @@
package metric
import (
"bytes"
"errors"
"fmt"
"strconv"
"time"
"github.com/influxdata/telegraf"
)
var (
ErrInvalidNumber = errors.New("invalid number")
)
const (
// the number of characters for the largest possible int64 (9223372036854775807)
maxInt64Digits = 19
// the number of characters for the smallest possible int64 (-9223372036854775808)
minInt64Digits = 20
// the number of characters required for the largest float64 before a range check
// would occur during parsing
maxFloat64Digits = 25
// the number of characters required for smallest float64 before a range check occur
// would occur during parsing
minFloat64Digits = 27
MaxKeyLength = 65535
)
// The following constants allow us to specify which state to move to
// next, when scanning sections of a Point.
const (
tagKeyState = iota
tagValueState
fieldsState
)
func Parse(buf []byte) ([]telegraf.Metric, error) {
return ParseWithDefaultTimePrecision(buf, time.Now(), "")
}
func ParseWithDefaultTime(buf []byte, t time.Time) ([]telegraf.Metric, error) {
return ParseWithDefaultTimePrecision(buf, t, "")
}
func ParseWithDefaultTimePrecision(
buf []byte,
t time.Time,
precision string,
) ([]telegraf.Metric, error) {
if len(buf) == 0 {
return []telegraf.Metric{}, nil
}
if len(buf) <= 6 {
return []telegraf.Metric{}, makeError("buffer too short", buf, 0)
}
metrics := make([]telegraf.Metric, 0, bytes.Count(buf, []byte("\n"))+1)
var errStr string
i := 0
for {
j := bytes.IndexByte(buf[i:], '\n')
if j == -1 {
break
}
if len(buf[i:i+j]) < 2 {
i += j + 1 // increment i past the previous newline
continue
}
m, err := parseMetric(buf[i:i+j], t, precision)
if err != nil {
i += j + 1 // increment i past the previous newline
errStr += " " + err.Error()
continue
}
i += j + 1 // increment i past the previous newline
metrics = append(metrics, m)
}
if len(errStr) > 0 {
return metrics, fmt.Errorf(errStr)
}
return metrics, nil
}
func parseMetric(buf []byte,
defaultTime time.Time,
precision string,
) (telegraf.Metric, error) {
var dTime string
// scan the first block which is measurement[,tag1=value1,tag2=value=2...]
pos, key, err := scanKey(buf, 0)
if err != nil {
return nil, err
}
// measurement name is required
if len(key) == 0 {
return nil, fmt.Errorf("missing measurement")
}
if len(key) > MaxKeyLength {
return nil, fmt.Errorf("max key length exceeded: %v > %v", len(key), MaxKeyLength)
}
// scan the second block is which is field1=value1[,field2=value2,...]
pos, fields, err := scanFields(buf, pos)
if err != nil {
return nil, err
}
// at least one field is required
if len(fields) == 0 {
return nil, fmt.Errorf("missing fields")
}
// scan the last block which is an optional integer timestamp
pos, ts, err := scanTime(buf, pos)
if err != nil {
return nil, err
}
// apply precision multiplier
var nsec int64
multiplier := getPrecisionMultiplier(precision)
if len(ts) > 0 && multiplier > 1 {
tsint, err := parseIntBytes(ts, 10, 64)
if err != nil {
return nil, err
}
nsec := multiplier * tsint
ts = []byte(strconv.FormatInt(nsec, 10))
}
m := &metric{
fields: fields,
t: ts,
nsec: nsec,
}
// parse out the measurement name
// namei is the index at which the "name" ends
namei := indexUnescapedByte(key, ',')
if namei < 1 {
// no tags
m.name = key
} else {
m.name = key[0:namei]
m.tags = key[namei:]
}
if len(m.t) == 0 {
if len(dTime) == 0 {
dTime = fmt.Sprint(defaultTime.UnixNano())
}
// use default time
m.t = []byte(dTime)
}
// here we copy on return because this allows us to later call
// AddTag, AddField, RemoveTag, RemoveField, etc. without worrying about
// modifying 'tag' bytes having an affect on 'field' bytes, for example.
return m.Copy(), nil
}
// scanKey scans buf starting at i for the measurement and tag portion of the point.
// It returns the ending position and the byte slice of key within buf. If there
// are tags, they will be sorted if they are not already.
func scanKey(buf []byte, i int) (int, []byte, error) {
start := skipWhitespace(buf, i)
i = start
// First scan the Point's measurement.
state, i, err := scanMeasurement(buf, i)
if err != nil {
return i, buf[start:i], err
}
// Optionally scan tags if needed.
if state == tagKeyState {
i, err = scanTags(buf, i)
if err != nil {
return i, buf[start:i], err
}
}
return i, buf[start:i], nil
}
// scanMeasurement examines the measurement part of a Point, returning
// the next state to move to, and the current location in the buffer.
func scanMeasurement(buf []byte, i int) (int, int, error) {
// Check first byte of measurement, anything except a comma is fine.
// It can't be a space, since whitespace is stripped prior to this
// function call.
if i >= len(buf) || buf[i] == ',' {
return -1, i, makeError("missing measurement", buf, i)
}
for {
i++
if i >= len(buf) {
// cpu
return -1, i, makeError("missing fields", buf, i)
}
if buf[i-1] == '\\' {
// Skip character (it's escaped).
continue
}
// Unescaped comma; move onto scanning the tags.
if buf[i] == ',' {
return tagKeyState, i + 1, nil
}
// Unescaped space; move onto scanning the fields.
if buf[i] == ' ' {
// cpu value=1.0
return fieldsState, i, nil
}
}
}
// scanTags examines all the tags in a Point, keeping track of and
// returning the updated indices slice, number of commas and location
// in buf where to start examining the Point fields.
func scanTags(buf []byte, i int) (int, error) {
var (
err error
state = tagKeyState
)
for {
switch state {
case tagKeyState:
i, err = scanTagsKey(buf, i)
state = tagValueState // tag value always follows a tag key
case tagValueState:
state, i, err = scanTagsValue(buf, i)
case fieldsState:
return i, nil
}
if err != nil {
return i, err
}
}
}
// scanTagsKey scans each character in a tag key.
func scanTagsKey(buf []byte, i int) (int, error) {
// First character of the key.
if i >= len(buf) || buf[i] == ' ' || buf[i] == ',' || buf[i] == '=' {
// cpu,{'', ' ', ',', '='}
return i, makeError("missing tag key", buf, i)
}
// Examine each character in the tag key until we hit an unescaped
// equals (the tag value), or we hit an error (i.e., unescaped
// space or comma).
for {
i++
// Either we reached the end of the buffer or we hit an
// unescaped comma or space.
if i >= len(buf) ||
((buf[i] == ' ' || buf[i] == ',') && buf[i-1] != '\\') {
// cpu,tag{'', ' ', ','}
return i, makeError("missing tag value", buf, i)
}
if buf[i] == '=' && buf[i-1] != '\\' {
// cpu,tag=
return i + 1, nil
}
}
}
// scanTagsValue scans each character in a tag value.
func scanTagsValue(buf []byte, i int) (int, int, error) {
// Tag value cannot be empty.
if i >= len(buf) || buf[i] == ',' || buf[i] == ' ' {
// cpu,tag={',', ' '}
return -1, i, makeError("missing tag value", buf, i)
}
// Examine each character in the tag value until we hit an unescaped
// comma (move onto next tag key), an unescaped space (move onto
// fields), or we error out.
for {
i++
if i >= len(buf) {
// cpu,tag=value
return -1, i, makeError("missing fields", buf, i)
}
// An unescaped equals sign is an invalid tag value.
if buf[i] == '=' && buf[i-1] != '\\' {
// cpu,tag={'=', 'fo=o'}
return -1, i, makeError("invalid tag format", buf, i)
}
if buf[i] == ',' && buf[i-1] != '\\' {
// cpu,tag=foo,
return tagKeyState, i + 1, nil
}
// cpu,tag=foo value=1.0
// cpu, tag=foo\= value=1.0
if buf[i] == ' ' && buf[i-1] != '\\' {
return fieldsState, i, nil
}
}
}
// scanFields scans buf, starting at i for the fields section of a point. It returns
// the ending position and the byte slice of the fields within buf
func scanFields(buf []byte, i int) (int, []byte, error) {
start := skipWhitespace(buf, i)
i = start
// track how many '"" we've seen since last '='
quotes := 0
// tracks how many '=' we've seen
equals := 0
// tracks how many commas we've seen
commas := 0
for {
// reached the end of buf?
if i >= len(buf) {
break
}
// escaped characters?
if buf[i] == '\\' && i+1 < len(buf) {
i += 2
continue
}
// If the value is quoted, scan until we get to the end quote
// Only quote values in the field value since quotes are not significant
// in the field key
if buf[i] == '"' && equals > commas {
i++
quotes++
if quotes > 2 {
break
}
continue
}
// If we see an =, ensure that there is at least on char before and after it
if buf[i] == '=' && quotes != 1 {
quotes = 0
equals++
// check for "... =123" but allow "a\ =123"
if buf[i-1] == ' ' && buf[i-2] != '\\' {
return i, buf[start:i], makeError("missing field key", buf, i)
}
// check for "...a=123,=456" but allow "a=123,a\,=456"
if buf[i-1] == ',' && buf[i-2] != '\\' {
return i, buf[start:i], makeError("missing field key", buf, i)
}
// check for "... value="
if i+1 >= len(buf) {
return i, buf[start:i], makeError("missing field value", buf, i)
}
// check for "... value=,value2=..."
if buf[i+1] == ',' || buf[i+1] == ' ' {
return i, buf[start:i], makeError("missing field value", buf, i)
}
if isNumeric(buf[i+1]) || buf[i+1] == '-' || buf[i+1] == 'N' || buf[i+1] == 'n' {
var err error
i, err = scanNumber(buf, i+1)
if err != nil {
return i, buf[start:i], err
}
continue
}
// If next byte is not a double-quote, the value must be a boolean
if buf[i+1] != '"' {
var err error
i, _, err = scanBoolean(buf, i+1)
if err != nil {
return i, buf[start:i], err
}
continue
}
}
if buf[i] == ',' && quotes != 1 {
commas++
}
// reached end of block?
if buf[i] == ' ' && quotes != 1 {
break
}
i++
}
if quotes != 0 && quotes != 2 {
return i, buf[start:i], makeError("unbalanced quotes", buf, i)
}
// check that all field sections had key and values (e.g. prevent "a=1,b"
if equals == 0 || commas != equals-1 {
return i, buf[start:i], makeError("invalid field format", buf, i)
}
return i, buf[start:i], nil
}
// scanTime scans buf, starting at i for the time section of a point. It
// returns the ending position and the byte slice of the timestamp within buf
// and and error if the timestamp is not in the correct numeric format.
func scanTime(buf []byte, i int) (int, []byte, error) {
start := skipWhitespace(buf, i)
i = start
for {
// reached the end of buf?
if i >= len(buf) {
break
}
// Reached end of block or trailing whitespace?
if buf[i] == '\n' || buf[i] == ' ' {
break
}
// Handle negative timestamps
if i == start && buf[i] == '-' {
i++
continue
}
// Timestamps should be integers, make sure they are so we don't need
// to actually parse the timestamp until needed.
if buf[i] < '0' || buf[i] > '9' {
return i, buf[start:i], makeError("invalid timestamp", buf, i)
}
i++
}
return i, buf[start:i], nil
}
func isNumeric(b byte) bool {
return (b >= '0' && b <= '9') || b == '.'
}
// scanNumber returns the end position within buf, start at i after
// scanning over buf for an integer, or float. It returns an
// error if a invalid number is scanned.
func scanNumber(buf []byte, i int) (int, error) {
start := i
var isInt bool
// Is negative number?
if i < len(buf) && buf[i] == '-' {
i++
// There must be more characters now, as just '-' is illegal.
if i == len(buf) {
return i, ErrInvalidNumber
}
}
// how many decimal points we've see
decimal := false
// indicates the number is float in scientific notation
scientific := false
for {
if i >= len(buf) {
break
}
if buf[i] == ',' || buf[i] == ' ' {
break
}
if buf[i] == 'i' && i > start && !isInt {
isInt = true
i++
continue
}
if buf[i] == '.' {
// Can't have more than 1 decimal (e.g. 1.1.1 should fail)
if decimal {
return i, ErrInvalidNumber
}
decimal = true
}
// `e` is valid for floats but not as the first char
if i > start && (buf[i] == 'e' || buf[i] == 'E') {
scientific = true
i++
continue
}
// + and - are only valid at this point if they follow an e (scientific notation)
if (buf[i] == '+' || buf[i] == '-') && (buf[i-1] == 'e' || buf[i-1] == 'E') {
i++
continue
}
// NaN is an unsupported value
if i+2 < len(buf) && (buf[i] == 'N' || buf[i] == 'n') {
return i, ErrInvalidNumber
}
if !isNumeric(buf[i]) {
return i, ErrInvalidNumber
}
i++
}
if isInt && (decimal || scientific) {
return i, ErrInvalidNumber
}
numericDigits := i - start
if isInt {
numericDigits--
}
if decimal {
numericDigits--
}
if buf[start] == '-' {
numericDigits--
}
if numericDigits == 0 {
return i, ErrInvalidNumber
}
// It's more common that numbers will be within min/max range for their type but we need to prevent
// out or range numbers from being parsed successfully. This uses some simple heuristics to decide
// if we should parse the number to the actual type. It does not do it all the time because it incurs
// extra allocations and we end up converting the type again when writing points to disk.
if isInt {
// Make sure the last char is an 'i' for integers (e.g. 9i10 is not valid)
if buf[i-1] != 'i' {
return i, ErrInvalidNumber
}
// Parse the int to check bounds the number of digits could be larger than the max range
// We subtract 1 from the index to remove the `i` from our tests
if len(buf[start:i-1]) >= maxInt64Digits || len(buf[start:i-1]) >= minInt64Digits {
if _, err := parseIntBytes(buf[start:i-1], 10, 64); err != nil {
return i, makeError(fmt.Sprintf("unable to parse integer %s: %s", buf[start:i-1], err), buf, i)
}
}
} else {
// Parse the float to check bounds if it's scientific or the number of digits could be larger than the max range
if scientific || len(buf[start:i]) >= maxFloat64Digits || len(buf[start:i]) >= minFloat64Digits {
if _, err := parseFloatBytes(buf[start:i], 10); err != nil {
return i, makeError("invalid float", buf, i)
}
}
}
return i, nil
}
// scanBoolean returns the end position within buf, start at i after
// scanning over buf for boolean. Valid values for a boolean are
// t, T, true, TRUE, f, F, false, FALSE. It returns an error if a invalid boolean
// is scanned.
func scanBoolean(buf []byte, i int) (int, []byte, error) {
start := i
if i < len(buf) && (buf[i] != 't' && buf[i] != 'f' && buf[i] != 'T' && buf[i] != 'F') {
return i, buf[start:i], makeError("invalid value", buf, i)
}
i++
for {
if i >= len(buf) {
break
}
if buf[i] == ',' || buf[i] == ' ' {
break
}
i++
}
// Single char bool (t, T, f, F) is ok
if i-start == 1 {
return i, buf[start:i], nil
}
// length must be 4 for true or TRUE
if (buf[start] == 't' || buf[start] == 'T') && i-start != 4 {
return i, buf[start:i], makeError("invalid boolean", buf, i)
}
// length must be 5 for false or FALSE
if (buf[start] == 'f' || buf[start] == 'F') && i-start != 5 {
return i, buf[start:i], makeError("invalid boolean", buf, i)
}
// Otherwise
valid := false
switch buf[start] {
case 't':
valid = bytes.Equal(buf[start:i], []byte("true"))
case 'f':
valid = bytes.Equal(buf[start:i], []byte("false"))
case 'T':
valid = bytes.Equal(buf[start:i], []byte("TRUE")) || bytes.Equal(buf[start:i], []byte("True"))
case 'F':
valid = bytes.Equal(buf[start:i], []byte("FALSE")) || bytes.Equal(buf[start:i], []byte("False"))
}
if !valid {
return i, buf[start:i], makeError("invalid boolean", buf, i)
}
return i, buf[start:i], nil
}
// skipWhitespace returns the end position within buf, starting at i after
// scanning over spaces in tags
func skipWhitespace(buf []byte, i int) int {
for i < len(buf) {
if buf[i] != ' ' && buf[i] != '\t' && buf[i] != 0 {
break
}
i++
}
return i
}
// makeError is a helper function for making a metric parsing error.
// reason is the reason why the error occurred.
// buf should be the current buffer we are parsing.
// i is the current index, to give some context on where in the buffer we are.
func makeError(reason string, buf []byte, i int) error {
return fmt.Errorf("metric parsing error, reason: [%s], buffer: [%s], index: [%d]",
reason, buf, i)
}
// getPrecisionMultiplier will return a multiplier for the precision specified.
func getPrecisionMultiplier(precision string) int64 {
d := time.Nanosecond
switch precision {
case "u":
d = time.Microsecond
case "ms":
d = time.Millisecond
case "s":
d = time.Second
case "m":
d = time.Minute
case "h":
d = time.Hour
}
return int64(d)
}

413
metric/parse_test.go
View File

@ -1,413 +0,0 @@
package metric
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
)
const trues = `booltest b=T
booltest b=t
booltest b=True
booltest b=TRUE
booltest b=true
`
const falses = `booltest b=F
booltest b=f
booltest b=False
booltest b=FALSE
booltest b=false
`
const withEscapes = `w\,\ eather,host=local temp=99 1465839830100400200
w\,eather,host=local temp=99 1465839830100400200
weather,location=us\,midwest temperature=82 1465839830100400200
weather,location=us-midwest temp\=rature=82 1465839830100400200
weather,location\ place=us-midwest temperature=82 1465839830100400200
weather,location=us-midwest temperature="too\"hot\"" 1465839830100400200
`
const withTimestamps = `cpu usage=99 1480595849000000000
cpu usage=99 1480595850000000000
cpu usage=99 1480595851700030000
cpu usage=99 1480595852000000300
`
const sevenMetrics = `cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
`
const negMetrics = `weather,host=local temp=-99i,temp_float=-99.4 1465839830100400200
`
// some metrics are invalid
const someInvalid = `cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,cpu=cpu3, host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,cpu=cpu4 , usage_idle=99,usage_busy=1
cpu 1480595852000000300
cpu usage=99 1480595852foobar300
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
`
func TestParse(t *testing.T) {
start := time.Now()
metrics, err := Parse([]byte(sevenMetrics))
assert.NoError(t, err)
assert.Len(t, metrics, 7)
// all metrics parsed together w/o a timestamp should have the same time.
firstTime := metrics[0].Time()
for _, m := range metrics {
assert.Equal(t,
map[string]interface{}{
"idle": float64(99),
"busy": int64(1),
"b": true,
"s": "string",
},
m.Fields(),
)
assert.Equal(t,
map[string]string{
"host": "foo",
"datacenter": "us-east",
},
m.Tags(),
)
assert.True(t, m.Time().After(start))
assert.True(t, m.Time().Equal(firstTime))
}
}
func TestParseNegNumbers(t *testing.T) {
metrics, err := Parse([]byte(negMetrics))
assert.NoError(t, err)
assert.Len(t, metrics, 1)
assert.Equal(t,
map[string]interface{}{
"temp": int64(-99),
"temp_float": float64(-99.4),
},
metrics[0].Fields(),
)
assert.Equal(t,
map[string]string{
"host": "local",
},
metrics[0].Tags(),
)
}
func TestParseErrors(t *testing.T) {
start := time.Now()
metrics, err := Parse([]byte(someInvalid))
assert.Error(t, err)
assert.Len(t, metrics, 4)
// all metrics parsed together w/o a timestamp should have the same time.
firstTime := metrics[0].Time()
for _, m := range metrics {
assert.Equal(t,
map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
},
m.Fields(),
)
assert.Equal(t,
map[string]string{
"host": "foo",
"datacenter": "us-east",
},
m.Tags(),
)
assert.True(t, m.Time().After(start))
assert.True(t, m.Time().Equal(firstTime))
}
}
func TestParseWithTimestamps(t *testing.T) {
metrics, err := Parse([]byte(withTimestamps))
assert.NoError(t, err)
assert.Len(t, metrics, 4)
expectedTimestamps := []time.Time{
time.Unix(0, 1480595849000000000),
time.Unix(0, 1480595850000000000),
time.Unix(0, 1480595851700030000),
time.Unix(0, 1480595852000000300),
}
// all metrics parsed together w/o a timestamp should have the same time.
for i, m := range metrics {
assert.Equal(t,
map[string]interface{}{
"usage": float64(99),
},
m.Fields(),
)
assert.True(t, m.Time().Equal(expectedTimestamps[i]))
}
}
func TestParseEscapes(t *testing.T) {
metrics, err := Parse([]byte(withEscapes))
assert.NoError(t, err)
assert.Len(t, metrics, 6)
tests := []struct {
name string
fields map[string]interface{}
tags map[string]string
}{
{
name: `w, eather`,
fields: map[string]interface{}{"temp": float64(99)},
tags: map[string]string{"host": "local"},
},
{
name: `w,eather`,
fields: map[string]interface{}{"temp": float64(99)},
tags: map[string]string{"host": "local"},
},
{
name: `weather`,
fields: map[string]interface{}{"temperature": float64(82)},
tags: map[string]string{"location": `us,midwest`},
},
{
name: `weather`,
fields: map[string]interface{}{`temp=rature`: float64(82)},
tags: map[string]string{"location": `us-midwest`},
},
{
name: `weather`,
fields: map[string]interface{}{"temperature": float64(82)},
tags: map[string]string{`location place`: `us-midwest`},
},
{
name: `weather`,
fields: map[string]interface{}{`temperature`: `too"hot"`},
tags: map[string]string{"location": `us-midwest`},
},
}
for i, test := range tests {
assert.Equal(t, test.name, metrics[i].Name())
assert.Equal(t, test.fields, metrics[i].Fields())
assert.Equal(t, test.tags, metrics[i].Tags())
}
}
func TestParseTrueBooleans(t *testing.T) {
metrics, err := Parse([]byte(trues))
assert.NoError(t, err)
assert.Len(t, metrics, 5)
for _, metric := range metrics {
assert.Equal(t, "booltest", metric.Name())
assert.Equal(t, true, metric.Fields()["b"])
}
}
func TestParseFalseBooleans(t *testing.T) {
metrics, err := Parse([]byte(falses))
assert.NoError(t, err)
assert.Len(t, metrics, 5)
for _, metric := range metrics {
assert.Equal(t, "booltest", metric.Name())
assert.Equal(t, false, metric.Fields()["b"])
}
}
func TestParsePointBadNumber(t *testing.T) {
for _, tt := range []string{
"cpu v=- ",
"cpu v=-i ",
"cpu v=-. ",
"cpu v=. ",
"cpu v=1.0i ",
"cpu v=1ii ",
"cpu v=1a ",
"cpu v=-e-e-e ",
"cpu v=42+3 ",
"cpu v= ",
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParseTagsMissingParts(t *testing.T) {
for _, tt := range []string{
`cpu,host`,
`cpu,host,`,
`cpu,host=`,
`cpu,f=oo=bar value=1`,
`cpu,host value=1i`,
`cpu,host=serverA,region value=1i`,
`cpu,host=serverA,region= value=1i`,
`cpu,host=serverA,region=,zone=us-west value=1i`,
`cpu, value=1`,
`cpu, ,,`,
`cpu,,,`,
`cpu,host=serverA,=us-east value=1i`,
`cpu,host=serverAa\,,=us-east value=1i`,
`cpu,host=serverA\,,=us-east value=1i`,
`cpu, =serverA value=1i`,
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParsePointWhitespace(t *testing.T) {
for _, tt := range []string{
`cpu value=1.0 1257894000000000000`,
`cpu value=1.0 1257894000000000000`,
`cpu value=1.0 1257894000000000000`,
`cpu value=1.0 1257894000000000000 `,
} {
m, err := Parse([]byte(tt + "\n"))
assert.NoError(t, err, tt)
assert.Equal(t, "cpu", m[0].Name())
assert.Equal(t, map[string]interface{}{"value": float64(1)}, m[0].Fields())
}
}
func TestParsePointInvalidFields(t *testing.T) {
for _, tt := range []string{
"test,foo=bar a=101,=value",
"test,foo=bar =value",
"test,foo=bar a=101,key=",
"test,foo=bar key=",
`test,foo=bar a=101,b="foo`,
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParsePointNoFields(t *testing.T) {
for _, tt := range []string{
"cpu_load_short,host=server01,region=us-west",
"very_long_measurement_name",
"cpu,host==",
"============",
"cpu",
"cpu\n\n\n\n\n\n\n",
" ",
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
// a b=1 << this is the shortest possible metric
// any shorter is just ignored
func TestParseBufTooShort(t *testing.T) {
for _, tt := range []string{
"",
"a",
"a ",
"a b=",
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParseInvalidBooleans(t *testing.T) {
for _, tt := range []string{
"test b=tru",
"test b=fals",
"test b=faLse",
"test q=foo",
"test b=lambchops",
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParseInvalidNumbers(t *testing.T) {
for _, tt := range []string{
"test b=-",
"test b=1.1.1",
"test b=nan",
"test b=9i10",
"test b=9999999999999999999i",
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParseNegativeTimestamps(t *testing.T) {
for _, tt := range []string{
"test foo=101 -1257894000000000000",
} {
metrics, err := Parse([]byte(tt + "\n"))
assert.NoError(t, err, tt)
assert.True(t, metrics[0].Time().Equal(time.Unix(0, -1257894000000000000)))
}
}
func TestParsePrecision(t *testing.T) {
for _, tt := range []struct {
line string
precision string
expected int64
}{
{"test v=42 1491847420", "s", 1491847420000000000},
{"test v=42 1491847420123", "ms", 1491847420123000000},
{"test v=42 1491847420123456", "u", 1491847420123456000},
{"test v=42 1491847420123456789", "ns", 1491847420123456789},
{"test v=42 1491847420123456789", "1s", 1491847420123456789},
{"test v=42 1491847420123456789", "asdf", 1491847420123456789},
} {
metrics, err := ParseWithDefaultTimePrecision(
[]byte(tt.line+"\n"), time.Now(), tt.precision)
assert.NoError(t, err)
assert.Equal(t, tt.expected, metrics[0].UnixNano())
}
}
func TestParsePrecisionUnsetTime(t *testing.T) {
for _, tt := range []struct {
line string
precision string
}{
{"test v=42", "s"},
{"test v=42", "ns"},
} {
_, err := ParseWithDefaultTimePrecision(
[]byte(tt.line+"\n"), time.Now(), tt.precision)
assert.NoError(t, err)
}
}
func TestParseMaxKeyLength(t *testing.T) {
key := ""
for {
if len(key) > MaxKeyLength {
break
}
key += "test"
}
_, err := Parse([]byte(key + " value=1\n"))
assert.Error(t, err)
}

159
metric/reader.go
View File

@ -1,159 +0,0 @@
package metric
import (
"io"
"github.com/influxdata/telegraf"
)
type state int
const (
_ state = iota
// normal state copies whole metrics into the given buffer until we can't
// fit the next metric.
normal
// split state means that we have a metric that we were able to split, so
// that we can fit it into multiple metrics (and calls to Read)
split
// overflow state means that we have a metric that didn't fit into a single
// buffer, and needs to be split across multiple calls to Read.
overflow
// splitOverflow state means that a split metric didn't fit into a single
// buffer, and needs to be split across multiple calls to Read.
splitOverflow
// done means we're done reading metrics, and now always return (0, io.EOF)
done
)
type reader struct {
metrics []telegraf.Metric
splitMetrics []telegraf.Metric
buf []byte
state state
// metric index
iM int
// split metric index
iSM int
// buffer index
iB int
}
func NewReader(metrics []telegraf.Metric) io.Reader {
return &reader{
metrics: metrics,
state: normal,
}
}
func (r *reader) Read(p []byte) (n int, err error) {
var i int
switch r.state {
case done:
return 0, io.EOF
case normal:
for {
// this for-loop is the sunny-day scenario, where we are given a
// buffer that is large enough to hold at least a single metric.
// all of the cases below it are edge-cases.
if r.metrics[r.iM].Len() <= len(p[i:]) {
i += r.metrics[r.iM].SerializeTo(p[i:])
} else {
break
}
r.iM++
if r.iM == len(r.metrics) {
r.state = done
return i, io.EOF
}
}
// if we haven't written any bytes, check if we can split the current
// metric into multiple full metrics at a smaller size.
if i == 0 {
tmp := r.metrics[r.iM].Split(len(p))
if len(tmp) > 1 {
r.splitMetrics = tmp
r.state = split
if r.splitMetrics[0].Len() <= len(p) {
i += r.splitMetrics[0].SerializeTo(p)
r.iSM = 1
} else {
// splitting didn't quite work, so we'll drop down and
// overflow the metric.
r.state = normal
r.iSM = 0
}
}
}
// if we haven't written any bytes and we're not at the end of the metrics
// slice, then it means we have a single metric that is larger than the
// provided buffer.
if i == 0 {
r.buf = r.metrics[r.iM].Serialize()
i += copy(p, r.buf[r.iB:])
r.iB += i
r.state = overflow
}
case split:
if r.splitMetrics[r.iSM].Len() <= len(p) {
// write the current split metric
i += r.splitMetrics[r.iSM].SerializeTo(p)
r.iSM++
if r.iSM >= len(r.splitMetrics) {
// done writing the current split metrics
r.iSM = 0
r.iM++
if r.iM == len(r.metrics) {
r.state = done
return i, io.EOF
}
r.state = normal
}
} else {
// This would only happen if we split the metric, and then a
// subsequent buffer was smaller than the initial one given,
// so that our split metric no longer fits.
r.buf = r.splitMetrics[r.iSM].Serialize()
i += copy(p, r.buf[r.iB:])
r.iB += i
r.state = splitOverflow
}
case splitOverflow:
i = copy(p, r.buf[r.iB:])
r.iB += i
if r.iB >= len(r.buf) {
r.iB = 0
r.iSM++
if r.iSM == len(r.splitMetrics) {
r.iM++
if r.iM == len(r.metrics) {
r.state = done
return i, io.EOF
}
r.state = normal
} else {
r.state = split
}
}
case overflow:
i = copy(p, r.buf[r.iB:])
r.iB += i
if r.iB >= len(r.buf) {
r.iB = 0
r.iM++
if r.iM == len(r.metrics) {
r.state = done
return i, io.EOF
}
r.state = normal
}
}
return i, nil
}

713
metric/reader_test.go
View File

@ -1,713 +0,0 @@
package metric
import (
"io"
"io/ioutil"
"regexp"
"strings"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func BenchmarkMetricReader(b *testing.B) {
metrics := make([]telegraf.Metric, 10)
for i := 0; i < 10; i++ {
metrics[i], _ = New("foo", map[string]string{},
map[string]interface{}{"value": int64(1)}, time.Now())
}
for n := 0; n < b.N; n++ {
r := NewReader(metrics)
io.Copy(ioutil.Discard, r)
}
}
func TestMetricReader(t *testing.T) {
ts := time.Unix(1481032190, 0)
metrics := make([]telegraf.Metric, 10)
for i := 0; i < 10; i++ {
metrics[i], _ = New("foo", map[string]string{},
map[string]interface{}{"value": int64(1)}, ts)
}
r := NewReader(metrics)
buf := make([]byte, 35)
for i := 0; i < 10; i++ {
n, err := r.Read(buf)
if err != nil {
assert.True(t, err == io.EOF, err.Error())
}
assert.Equal(t, 33, n)
assert.Equal(t, "foo value=1i 1481032190000000000\n", string(buf[0:n]))
}
// reader should now be done, and always return 0, io.EOF
for i := 0; i < 10; i++ {
n, err := r.Read(buf)
assert.True(t, err == io.EOF, err.Error())
assert.Equal(t, 0, n)
}
}
func TestMetricReader_OverflowMetric(t *testing.T) {
ts := time.Unix(1481032190, 0)
m, _ := New("foo", map[string]string{},
map[string]interface{}{"value": int64(10)}, ts)
metrics := []telegraf.Metric{m}
r := NewReader(metrics)
buf := make([]byte, 5)
tests := []struct {
exp string
err error
n int
}{
{
"foo v",
nil,
5,
},
{
"alue=",
nil,
5,
},
{
"10i 1",
nil,
5,
},
{
"48103",
nil,
5,
},
{
"21900",
nil,
5,
},
{
"00000",
nil,
5,
},
{
"000\n",
io.EOF,
4,
},
{
"",
io.EOF,
0,
},
}
for _, test := range tests {
n, err := r.Read(buf)
assert.Equal(t, test.n, n)
assert.Equal(t, test.exp, string(buf[0:n]))
assert.Equal(t, test.err, err)
}
}
// Regression test for when a metric is the same size as the buffer.
//
// Previously EOF would not be set until the next call to Read.
func TestMetricReader_MetricSizeEqualsBufferSize(t *testing.T) {
ts := time.Unix(1481032190, 0)
m1, _ := New("foo", map[string]string{},
map[string]interface{}{"a": int64(1)}, ts)
metrics := []telegraf.Metric{m1}
r := NewReader(metrics)
buf := make([]byte, m1.Len())
for {
n, err := r.Read(buf)
// Should never read 0 bytes unless at EOF, unless input buffer is 0 length
if n == 0 {
require.Equal(t, io.EOF, err)
break
}
// Lines should be terminated with a LF
if err == io.EOF {
require.Equal(t, uint8('\n'), buf[n-1])
break
}
require.NoError(t, err)
}
}
// Regression test for when a metric requires to be split and one of the
// split metrics is exactly the size of the buffer.
//
// Previously an empty string would be returned on the next Read without error,
// and then next Read call would panic.
func TestMetricReader_SplitWithExactLengthSplit(t *testing.T) {
ts := time.Unix(1481032190, 0)
m1, _ := New("foo", map[string]string{},
map[string]interface{}{"a": int64(1), "bb": int64(2)}, ts)
metrics := []telegraf.Metric{m1}
r := NewReader(metrics)
buf := make([]byte, 30)
// foo a=1i,bb=2i 1481032190000000000\n // len 35
//
// Requires this specific split order:
// foo a=1i 1481032190000000000\n // len 29
// foo bb=2i 1481032190000000000\n // len 30
for {
n, err := r.Read(buf)
// Should never read 0 bytes unless at EOF, unless input buffer is 0 length
if n == 0 {
require.Equal(t, io.EOF, err)
break
}
// Lines should be terminated with a LF
if err == io.EOF {
require.Equal(t, uint8('\n'), buf[n-1])
break
}
require.NoError(t, err)
}
}
// Regression test for when a metric requires to be split and one of the
// split metrics is larger than the buffer.
//
// Previously the metric index would be set incorrectly causing a panic.
func TestMetricReader_SplitOverflowOversized(t *testing.T) {
ts := time.Unix(1481032190, 0)
m1, _ := New("foo", map[string]string{},
map[string]interface{}{
"a": int64(1),
"bbb": int64(2),
}, ts)
metrics := []telegraf.Metric{m1}
r := NewReader(metrics)
buf := make([]byte, 30)
// foo a=1i,bbb=2i 1481032190000000000\n // len 36
//
// foo a=1i 1481032190000000000\n // len 29
// foo bbb=2i 1481032190000000000\n // len 31
for {
n, err := r.Read(buf)
// Should never read 0 bytes unless at EOF, unless input buffer is 0 length
if n == 0 {
require.Equal(t, io.EOF, err)
break
}
// Lines should be terminated with a LF
if err == io.EOF {
require.Equal(t, uint8('\n'), buf[n-1])
break
}
require.NoError(t, err)
}
}
// Regression test for when a split metric exactly fits in the buffer.
//
// Previously the metric would be overflow split when not required.
func TestMetricReader_SplitOverflowUneeded(t *testing.T) {
ts := time.Unix(1481032190, 0)
m1, _ := New("foo", map[string]string{},
map[string]interface{}{"a": int64(1), "b": int64(2)}, ts)
metrics := []telegraf.Metric{m1}
r := NewReader(metrics)
buf := make([]byte, 29)
// foo a=1i,b=2i 1481032190000000000\n // len 34
//
// foo a=1i 1481032190000000000\n // len 29
// foo b=2i 1481032190000000000\n // len 29
for {
n, err := r.Read(buf)
// Should never read 0 bytes unless at EOF, unless input buffer is 0 length
if n == 0 {
require.Equal(t, io.EOF, err)
break
}
// Lines should be terminated with a LF
if err == io.EOF {
require.Equal(t, uint8('\n'), buf[n-1])
break
}
require.NoError(t, err)
}
}
func TestMetricReader_OverflowMultipleMetrics(t *testing.T) {
ts := time.Unix(1481032190, 0)
m, _ := New("foo", map[string]string{},
map[string]interface{}{"value": int64(10)}, ts)
metrics := []telegraf.Metric{m, m.Copy()}
r := NewReader(metrics)
buf := make([]byte, 10)
tests := []struct {
exp string
err error
n int
}{
{
"foo value=",
nil,
10,
},
{
"10i 148103",
nil,
10,
},
{
"2190000000",
nil,
10,
},
{
"000\n",
nil,
4,
},
{
"foo value=",
nil,
10,
},
{
"10i 148103",
nil,
10,
},
{
"2190000000",
nil,
10,
},
{
"000\n",
io.EOF,
4,
},
{
"",
io.EOF,
0,
},
}
for _, test := range tests {
n, err := r.Read(buf)
assert.Equal(t, test.n, n)
assert.Equal(t, test.exp, string(buf[0:n]))
assert.Equal(t, test.err, err)
}
}
// test splitting a metric
func TestMetricReader_SplitMetric(t *testing.T) {
ts := time.Unix(1481032190, 0)
m1, _ := New("foo", map[string]string{},
map[string]interface{}{
"value1": int64(10),
"value2": int64(10),
"value3": int64(10),
"value4": int64(10),
"value5": int64(10),
"value6": int64(10),
},
ts,
)
metrics := []telegraf.Metric{m1}
r := NewReader(metrics)
buf := make([]byte, 60)
tests := []struct {
expRegex string
err error
n int
}{
{
`foo value\d=10i,value\d=10i,value\d=10i 1481032190000000000\n`,
nil,
57,
},
{
`foo value\d=10i,value\d=10i,value\d=10i 1481032190000000000\n`,
io.EOF,
57,
},
{
"",
io.EOF,
0,
},
}
for _, test := range tests {
n, err := r.Read(buf)
assert.Equal(t, test.n, n)
re := regexp.MustCompile(test.expRegex)
assert.True(t, re.MatchString(string(buf[0:n])), string(buf[0:n]))
assert.Equal(t, test.err, err)
}
}
// test an array with one split metric and one unsplit
func TestMetricReader_SplitMetric2(t *testing.T) {
ts := time.Unix(1481032190, 0)
m1, _ := New("foo", map[string]string{},
map[string]interface{}{
"value1": int64(10),
"value2": int64(10),
"value3": int64(10),
"value4": int64(10),
"value5": int64(10),
"value6": int64(10),
},
ts,
)
m2, _ := New("foo", map[string]string{},
map[string]interface{}{
"value1": int64(10),
},
ts,
)
metrics := []telegraf.Metric{m1, m2}
r := NewReader(metrics)
buf := make([]byte, 60)
tests := []struct {
expRegex string
err error
n int
}{
{
`foo value\d=10i,value\d=10i,value\d=10i 1481032190000000000\n`,
nil,
57,
},
{
`foo value\d=10i,value\d=10i,value\d=10i 1481032190000000000\n`,
nil,
57,
},
{
`foo value1=10i 1481032190000000000\n`,
io.EOF,
35,
},
{
"",
io.EOF,
0,
},
}
for _, test := range tests {
n, err := r.Read(buf)
assert.Equal(t, test.n, n)
re := regexp.MustCompile(test.expRegex)
assert.True(t, re.MatchString(string(buf[0:n])), string(buf[0:n]))
assert.Equal(t, test.err, err)
}
}
// test split that results in metrics that are still too long, which results in
// the reader falling back to regular overflow.
func TestMetricReader_SplitMetricTooLong(t *testing.T) {
ts := time.Unix(1481032190, 0)
m1, _ := New("foo", map[string]string{},
map[string]interface{}{
"value1": int64(10),
"value2": int64(10),
},
ts,
)
metrics := []telegraf.Metric{m1}
r := NewReader(metrics)
buf := make([]byte, 30)
tests := []struct {
expRegex string
err error
n int
}{
{
`foo value\d=10i,value\d=10i 1481`,
nil,
30,
},
{
`032190000000000\n`,
io.EOF,
16,
},
{
"",
io.EOF,
0,
},
}
for _, test := range tests {
n, err := r.Read(buf)
assert.Equal(t, test.n, n)
re := regexp.MustCompile(test.expRegex)
assert.True(t, re.MatchString(string(buf[0:n])), string(buf[0:n]))
assert.Equal(t, test.err, err)
}
}
// test split with a changing buffer size in the middle of subsequent calls
// to Read
func TestMetricReader_SplitMetricChangingBuffer(t *testing.T) {
ts := time.Unix(1481032190, 0)
m1, _ := New("foo", map[string]string{},
map[string]interface{}{
"value1": int64(10),
"value2": int64(10),
"value3": int64(10),
},
ts,
)
m2, _ := New("foo", map[string]string{},
map[string]interface{}{
"value1": int64(10),
},
ts,
)
metrics := []telegraf.Metric{m1, m2}
r := NewReader(metrics)
tests := []struct {
expRegex string
err error
n int
buf []byte
}{
{
`foo value\d=10i 1481032190000000000\n`,
nil,
35,
make([]byte, 36),
},
{
`foo value\d=10i 148103219000000`,
nil,
30,
make([]byte, 30),
},
{
`0000\n`,
nil,
5,
make([]byte, 30),
},
{
`foo value\d=10i 1481032190000000000\n`,
nil,
35,
make([]byte, 36),
},
{
`foo value1=10i 1481032190000000000\n`,
io.EOF,
35,
make([]byte, 36),
},
{
"",
io.EOF,
0,
make([]byte, 36),
},
}
for _, test := range tests {
n, err := r.Read(test.buf)
assert.Equal(t, test.n, n, test.expRegex)
re := regexp.MustCompile(test.expRegex)
assert.True(t, re.MatchString(string(test.buf[0:n])), string(test.buf[0:n]))
assert.Equal(t, test.err, err, test.expRegex)
}
}
// test split with a changing buffer size in the middle of subsequent calls
// to Read
func TestMetricReader_SplitMetricChangingBuffer2(t *testing.T) {
ts := time.Unix(1481032190, 0)
m1, _ := New("foo", map[string]string{},
map[string]interface{}{
"value1": int64(10),
"value2": int64(10),
},
ts,
)
m2, _ := New("foo", map[string]string{},
map[string]interface{}{
"value1": int64(10),
},
ts,
)
metrics := []telegraf.Metric{m1, m2}
r := NewReader(metrics)
tests := []struct {
expRegex string
err error
n int
buf []byte
}{
{
`foo value\d=10i 1481032190000000000\n`,
nil,
35,
make([]byte, 36),
},
{
`foo value\d=10i 148103219000000`,
nil,
30,
make([]byte, 30),
},
{
`0000\n`,
nil,
5,
make([]byte, 30),
},
{
`foo value1=10i 1481032190000000000\n`,
io.EOF,
35,
make([]byte, 36),
},
{
"",
io.EOF,
0,
make([]byte, 36),
},
}
for _, test := range tests {
n, err := r.Read(test.buf)
assert.Equal(t, test.n, n, test.expRegex)
re := regexp.MustCompile(test.expRegex)
assert.True(t, re.MatchString(string(test.buf[0:n])), string(test.buf[0:n]))
assert.Equal(t, test.err, err, test.expRegex)
}
}
func TestReader_Read(t *testing.T) {
epoch := time.Unix(0, 0)
type args struct {
name string
tags map[string]string
fields map[string]interface{}
t time.Time
mType []telegraf.ValueType
}
tests := []struct {
name string
args args
expected []byte
}{
{
name: "escape backslashes in string field",
args: args{
name: "cpu",
tags: map[string]string{},
fields: map[string]interface{}{"value": `test\`},
t: epoch,
},
expected: []byte(`cpu value="test\\" 0`),
},
{
name: "escape quote in string field",
args: args{
name: "cpu",
tags: map[string]string{},
fields: map[string]interface{}{"value": `test"`},
t: epoch,
},
expected: []byte(`cpu value="test\"" 0`),
},
{
name: "escape quote and backslash in string field",
args: args{
name: "cpu",
tags: map[string]string{},
fields: map[string]interface{}{"value": `test\"`},
t: epoch,
},
expected: []byte(`cpu value="test\\\"" 0`),
},
{
name: "escape multiple backslash in string field",
args: args{
name: "cpu",
tags: map[string]string{},
fields: map[string]interface{}{"value": `test\\`},
t: epoch,
},
expected: []byte(`cpu value="test\\\\" 0`),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
buf := make([]byte, 512)
m, err := New(tt.args.name, tt.args.tags, tt.args.fields, tt.args.t, tt.args.mType...)
require.NoError(t, err)
r := NewReader([]telegraf.Metric{m})
num, err := r.Read(buf)
if err != io.EOF {
require.NoError(t, err)
}
line := string(buf[:num])
// This is done so that we can use raw strings in the test spec
noeol := strings.TrimRight(line, "\n")
require.Equal(t, string(tt.expected), noeol)
require.Equal(t, len(tt.expected)+1, num)
})
}
}
func TestMetricRoundtrip(t *testing.T) {
const lp = `nstat,bu=linux,cls=server,dc=cer,env=production,host=hostname,name=netstat,sr=database IpExtInBcastOctets=12570626154i,IpExtInBcastPkts=95541226i,IpExtInCEPkts=0i,IpExtInCsumErrors=0i,IpExtInECT0Pkts=55674i,IpExtInECT1Pkts=0i,IpExtInMcastOctets=5928296i,IpExtInMcastPkts=174365i,IpExtInNoECTPkts=17965863529i,IpExtInNoRoutes=20i,IpExtInOctets=3334866321815i,IpExtInTruncatedPkts=0i,IpExtOutBcastOctets=0i,IpExtOutBcastPkts=0i,IpExtOutMcastOctets=0i,IpExtOutMcastPkts=0i,IpExtOutOctets=31397892391399i,TcpExtArpFilter=0i,TcpExtBusyPollRxPackets=0i,TcpExtDelayedACKLocked=14094i,TcpExtDelayedACKLost=302083i,TcpExtDelayedACKs=55486507i,TcpExtEmbryonicRsts=11879i,TcpExtIPReversePathFilter=0i,TcpExtListenDrops=1736i,TcpExtListenOverflows=0i,TcpExtLockDroppedIcmps=0i,TcpExtOfoPruned=0i,TcpExtOutOfWindowIcmps=8i,TcpExtPAWSActive=0i,TcpExtPAWSEstab=974i,TcpExtPAWSPassive=0i,TcpExtPruneCalled=0i,TcpExtRcvPruned=0i,TcpExtSyncookiesFailed=12593i,TcpExtSyncookiesRecv=0i,TcpExtSyncookiesSent=0i,TcpExtTCPACKSkippedChallenge=0i,TcpExtTCPACKSkippedFinWait2=0i,TcpExtTCPACKSkippedPAWS=806i,TcpExtTCPACKSkippedSeq=519i,TcpExtTCPACKSkippedSynRecv=0i,TcpExtTCPACKSkippedTimeWait=0i,TcpExtTCPAbortFailed=0i,TcpExtTCPAbortOnClose=22i,TcpExtTCPAbortOnData=36593i,TcpExtTCPAbortOnLinger=0i,TcpExtTCPAbortOnMemory=0i,TcpExtTCPAbortOnTimeout=674i,TcpExtTCPAutoCorking=494253233i,TcpExtTCPBacklogDrop=0i,TcpExtTCPChallengeACK=281i,TcpExtTCPDSACKIgnoredNoUndo=93354i,TcpExtTCPDSACKIgnoredOld=336i,TcpExtTCPDSACKOfoRecv=0i,TcpExtTCPDSACKOfoSent=7i,TcpExtTCPDSACKOldSent=302073i,TcpExtTCPDSACKRecv=215884i,TcpExtTCPDSACKUndo=7633i,TcpExtTCPDeferAcceptDrop=0i,TcpExtTCPDirectCopyFromBacklog=0i,TcpExtTCPDirectCopyFromPrequeue=0i,TcpExtTCPFACKReorder=1320i,TcpExtTCPFastOpenActive=0i,TcpExtTCPFastOpenActiveFail=0i,TcpExtTCPFastOpenCookieReqd=0i,TcpExtTCPFastOpenListenOverflow=0i,TcpExtTCPFastOpenPassive=0i,TcpExtTCPFastOpenPassiveFail=0i,TcpExtTCPFastRetrans=350681i,TcpExtTCPForwardRetrans=142168i,TcpExtTCPFromZeroWindowAdv=4317i,TcpExtTCPFullUndo=29502i,TcpExtTCPHPAcks=10267073000i,TcpExtTCPHPHits=5629837098i,TcpExtTCPHPHitsToUser=0i,TcpExtTCPHystartDelayCwnd=285127i,TcpExtTCPHystartDelayDetect=12318i,TcpExtTCPHystartTrainCwnd=69160570i,TcpExtTCPHystartTrainDetect=3315799i,TcpExtTCPLossFailures=109i,TcpExtTCPLossProbeRecovery=110819i,TcpExtTCPLossProbes=233995i,TcpExtTCPLossUndo=5276i,TcpExtTCPLostRetransmit=397i,TcpExtTCPMD5NotFound=0i,TcpExtTCPMD5Unexpected=0i,TcpExtTCPMemoryPressures=0i,TcpExtTCPMinTTLDrop=0i,TcpExtTCPOFODrop=0i,TcpExtTCPOFOMerge=7i,TcpExtTCPOFOQueue=15196i,TcpExtTCPOrigDataSent=29055119435i,TcpExtTCPPartialUndo=21320i,TcpExtTCPPrequeueDropped=0i,TcpExtTCPPrequeued=0i,TcpExtTCPPureAcks=1236441827i,TcpExtTCPRcvCoalesce=225590473i,TcpExtTCPRcvCollapsed=0i,TcpExtTCPRenoFailures=0i,TcpExtTCPRenoRecovery=0i,TcpExtTCPRenoRecoveryFail=0i,TcpExtTCPRenoReorder=0i,TcpExtTCPReqQFullDoCookies=0i,TcpExtTCPReqQFullDrop=0i,TcpExtTCPRetransFail=41i,TcpExtTCPSACKDiscard=0i,TcpExtTCPSACKReneging=0i,TcpExtTCPSACKReorder=4307i,TcpExtTCPSYNChallenge=244i,TcpExtTCPSackFailures=1698i,TcpExtTCPSackMerged=184668i,TcpExtTCPSackRecovery=97369i,TcpExtTCPSackRecoveryFail=381i,TcpExtTCPSackShiftFallback=2697079i,TcpExtTCPSackShifted=760299i,TcpExtTCPSchedulerFailed=0i,TcpExtTCPSlowStartRetrans=9276i,TcpExtTCPSpuriousRTOs=959i,TcpExtTCPSpuriousRtxHostQueues=2973i,TcpExtTCPSynRetrans=200970i,TcpExtTCPTSReorder=15221i,TcpExtTCPTimeWaitOverflow=0i,TcpExtTCPTimeouts=70127i,TcpExtTCPToZeroWindowAdv=4317i,TcpExtTCPWantZeroWindowAdv=2133i,TcpExtTW=24809813i,TcpExtTWKilled=0i,TcpExtTWRecycled=0i 1496460785000000000
nstat,bu=linux,cls=server,dc=cer,env=production,host=hostname,name=snmp,sr=database IcmpInAddrMaskReps=0i,IcmpInAddrMasks=90i,IcmpInCsumErrors=0i,IcmpInDestUnreachs=284401i,IcmpInEchoReps=9i,IcmpInEchos=1761912i,IcmpInErrors=407i,IcmpInMsgs=2047767i,IcmpInParmProbs=0i,IcmpInRedirects=0i,IcmpInSrcQuenchs=0i,IcmpInTimeExcds=46i,IcmpInTimestampReps=0i,IcmpInTimestamps=1309i,IcmpMsgInType0=9i,IcmpMsgInType11=46i,IcmpMsgInType13=1309i,IcmpMsgInType17=90i,IcmpMsgInType3=284401i,IcmpMsgInType8=1761912i,IcmpMsgOutType0=1761912i,IcmpMsgOutType14=1248i,IcmpMsgOutType3=108709i,IcmpMsgOutType8=9i,IcmpOutAddrMaskReps=0i,IcmpOutAddrMasks=0i,IcmpOutDestUnreachs=108709i,IcmpOutEchoReps=1761912i,IcmpOutEchos=9i,IcmpOutErrors=0i,IcmpOutMsgs=1871878i,IcmpOutParmProbs=0i,IcmpOutRedirects=0i,IcmpOutSrcQuenchs=0i,IcmpOutTimeExcds=0i,IcmpOutTimestampReps=1248i,IcmpOutTimestamps=0i,IpDefaultTTL=64i,IpForwDatagrams=0i,IpForwarding=2i,IpFragCreates=0i,IpFragFails=0i,IpFragOKs=0i,IpInAddrErrors=0i,IpInDelivers=17658795773i,IpInDiscards=0i,IpInHdrErrors=0i,IpInReceives=17659269339i,IpInUnknownProtos=0i,IpOutDiscards=236976i,IpOutNoRoutes=1009i,IpOutRequests=23466783734i,IpReasmFails=0i,IpReasmOKs=0i,IpReasmReqds=0i,IpReasmTimeout=0i,TcpActiveOpens=23308977i,TcpAttemptFails=3757543i,TcpCurrEstab=280i,TcpEstabResets=184792i,TcpInCsumErrors=0i,TcpInErrs=232i,TcpInSegs=17536573089i,TcpMaxConn=-1i,TcpOutRsts=4051451i,TcpOutSegs=29836254873i,TcpPassiveOpens=176546974i,TcpRetransSegs=878085i,TcpRtoAlgorithm=1i,TcpRtoMax=120000i,TcpRtoMin=200i,UdpInCsumErrors=0i,UdpInDatagrams=24441661i,UdpInErrors=0i,UdpLiteInCsumErrors=0i,UdpLiteInDatagrams=0i,UdpLiteInErrors=0i,UdpLiteNoPorts=0i,UdpLiteOutDatagrams=0i,UdpLiteRcvbufErrors=0i,UdpLiteSndbufErrors=0i,UdpNoPorts=17660i,UdpOutDatagrams=51807896i,UdpRcvbufErrors=0i,UdpSndbufErrors=236922i 1496460785000000000
`
metrics, err := Parse([]byte(lp))
require.NoError(t, err)
r := NewReader(metrics)
buf := make([]byte, 128)
_, err = r.Read(buf)
require.NoError(t, err)
metrics, err = Parse(buf)
require.NoError(t, err)
}

77
plugins/inputs/exec/exec_test.go
View File

@ -144,83 +144,6 @@ func TestCommandError(t *testing.T) {
assert.Equal(t, acc.NFields(), 0, "No new points should have been added")
}
func TestLineProtocolParse(t *testing.T) {
parser, _ := parsers.NewInfluxParser()
e := &Exec{
runner: newRunnerMock([]byte(lineProtocol), nil),
Commands: []string{"line-protocol"},
parser: parser,
}
var acc testutil.Accumulator
require.NoError(t, acc.GatherError(e.Gather))
fields := map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
}
tags := map[string]string{
"host": "foo",
"datacenter": "us-east",
}
acc.AssertContainsTaggedFields(t, "cpu", fields, tags)
}
func TestLineProtocolEmptyParse(t *testing.T) {
parser, _ := parsers.NewInfluxParser()
e := &Exec{
runner: newRunnerMock([]byte(lineProtocolEmpty), nil),
Commands: []string{"line-protocol"},
parser: parser,
}
var acc testutil.Accumulator
err := e.Gather(&acc)
require.NoError(t, err)
}
func TestLineProtocolShortParse(t *testing.T) {
parser, _ := parsers.NewInfluxParser()
e := &Exec{
runner: newRunnerMock([]byte(lineProtocolShort), nil),
Commands: []string{"line-protocol"},
parser: parser,
}
var acc testutil.Accumulator
err := acc.GatherError(e.Gather)
require.Error(t, err)
assert.Contains(t, err.Error(), "buffer too short", "A buffer too short error was expected")
}
func TestLineProtocolParseMultiple(t *testing.T) {
parser, _ := parsers.NewInfluxParser()
e := &Exec{
runner: newRunnerMock([]byte(lineProtocolMulti), nil),
Commands: []string{"line-protocol"},
parser: parser,
}
var acc testutil.Accumulator
err := acc.GatherError(e.Gather)
require.NoError(t, err)
fields := map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
}
tags := map[string]string{
"host": "foo",
"datacenter": "us-east",
}
cpuTags := []string{"cpu0", "cpu1", "cpu2", "cpu3", "cpu4", "cpu5", "cpu6"}
for _, cpu := range cpuTags {
tags["cpu"] = cpu
acc.AssertContainsTaggedFields(t, "cpu", fields, tags)
}
}
func TestExecCommandWithGlob(t *testing.T) {
parser, _ := parsers.NewValueParser("metric", "string", nil)
e := NewExec()

33
plugins/inputs/http_listener/http_listener.go
View File

@ -53,9 +53,10 @@ type HTTPListener struct {
listener net.Listener
parser influx.InfluxParser
acc telegraf.Accumulator
pool *pool
handler *influx.MetricHandler
parser *influx.Parser
acc telegraf.Accumulator
pool *pool
BytesRecv selfstat.Stat
RequestsServed selfstat.Stat
@ -176,6 +177,9 @@ func (h *HTTPListener) Start(acc telegraf.Accumulator) error {
h.listener = listener
h.Port = listener.Addr().(*net.TCPAddr).Port
h.handler = influx.NewMetricHandler()
h.parser = influx.NewParser(h.handler)
h.wg.Add(1)
go func() {
defer h.wg.Done()
@ -336,7 +340,11 @@ func (h *HTTPListener) serveWrite(res http.ResponseWriter, req *http.Request) {
}
func (h *HTTPListener) parse(b []byte, t time.Time, precision string) error {
metrics, err := h.parser.ParseWithDefaultTimePrecision(b, t, precision)
h.handler.SetPrecision(getPrecisionMultiplier(precision))
metrics, err := h.parser.Parse(b)
if err != nil {
return err
}
for _, m := range metrics {
h.acc.AddFields(m.Name(), m.Fields(), m.Tags(), m.Time())
@ -408,6 +416,23 @@ func (h *HTTPListener) AuthenticateIfSet(handler http.HandlerFunc, res http.Resp
}
}
func getPrecisionMultiplier(precision string) time.Duration {
d := time.Nanosecond
switch precision {
case "u":
d = time.Microsecond
case "ms":
d = time.Millisecond
case "s":
d = time.Second
case "m":
d = time.Minute
case "h":
d = time.Hour
}
return d
}
func init() {
inputs.Add("http_listener", func() telegraf.Input {
return &HTTPListener{

4
plugins/inputs/logparser/grok/grok.go
View File

@ -326,6 +326,10 @@ func (p *Parser) ParseLine(line string) (telegraf.Metric, error) {
}
}
if len(fields) == 0 {
return nil, fmt.Errorf("logparser_grok: must have one or more fields")
}
return metric.New(p.Measurement, tags, fields, p.tsModder.tsMod(timestamp))
}

20
plugins/inputs/logparser/grok/grok_test.go
View File

@ -799,7 +799,7 @@ func TestTimezoneEmptyCompileFileAndParse(t *testing.T) {
},
metricA.Fields())
assert.Equal(t, map[string]string{"response_code": "200"}, metricA.Tags())
assert.Equal(t, int64(1465040505000000000), metricA.UnixNano())
assert.Equal(t, int64(1465040505000000000), metricA.Time().UnixNano())
metricB, err := p.ParseLine(`[04/06/2016--12:41:45] 1.25 mystring dropme nomodifier`)
require.NotNil(t, metricB)
@ -812,7 +812,7 @@ func TestTimezoneEmptyCompileFileAndParse(t *testing.T) {
},
metricB.Fields())
assert.Equal(t, map[string]string{}, metricB.Tags())
assert.Equal(t, int64(1465044105000000000), metricB.UnixNano())
assert.Equal(t, int64(1465044105000000000), metricB.Time().UnixNano())
}
func TestTimezoneMalformedCompileFileAndParse(t *testing.T) {
@ -835,7 +835,7 @@ func TestTimezoneMalformedCompileFileAndParse(t *testing.T) {
},
metricA.Fields())
assert.Equal(t, map[string]string{"response_code": "200"}, metricA.Tags())
assert.Equal(t, int64(1465040505000000000), metricA.UnixNano())
assert.Equal(t, int64(1465040505000000000), metricA.Time().UnixNano())
metricB, err := p.ParseLine(`[04/06/2016--12:41:45] 1.25 mystring dropme nomodifier`)
require.NotNil(t, metricB)
@ -848,7 +848,7 @@ func TestTimezoneMalformedCompileFileAndParse(t *testing.T) {
},
metricB.Fields())
assert.Equal(t, map[string]string{}, metricB.Tags())
assert.Equal(t, int64(1465044105000000000), metricB.UnixNano())
assert.Equal(t, int64(1465044105000000000), metricB.Time().UnixNano())
}
func TestTimezoneEuropeCompileFileAndParse(t *testing.T) {
@ -871,7 +871,7 @@ func TestTimezoneEuropeCompileFileAndParse(t *testing.T) {
},
metricA.Fields())
assert.Equal(t, map[string]string{"response_code": "200"}, metricA.Tags())
assert.Equal(t, int64(1465040505000000000), metricA.UnixNano())
assert.Equal(t, int64(1465040505000000000), metricA.Time().UnixNano())
metricB, err := p.ParseLine(`[04/06/2016--12:41:45] 1.25 mystring dropme nomodifier`)
require.NotNil(t, metricB)
@ -884,7 +884,7 @@ func TestTimezoneEuropeCompileFileAndParse(t *testing.T) {
},
metricB.Fields())
assert.Equal(t, map[string]string{}, metricB.Tags())
assert.Equal(t, int64(1465036905000000000), metricB.UnixNano())
assert.Equal(t, int64(1465036905000000000), metricB.Time().UnixNano())
}
func TestTimezoneAmericasCompileFileAndParse(t *testing.T) {
@ -907,7 +907,7 @@ func TestTimezoneAmericasCompileFileAndParse(t *testing.T) {
},
metricA.Fields())
assert.Equal(t, map[string]string{"response_code": "200"}, metricA.Tags())
assert.Equal(t, int64(1465040505000000000), metricA.UnixNano())
assert.Equal(t, int64(1465040505000000000), metricA.Time().UnixNano())
metricB, err := p.ParseLine(`[04/06/2016--12:41:45] 1.25 mystring dropme nomodifier`)
require.NotNil(t, metricB)
@ -920,7 +920,7 @@ func TestTimezoneAmericasCompileFileAndParse(t *testing.T) {
},
metricB.Fields())
assert.Equal(t, map[string]string{}, metricB.Tags())
assert.Equal(t, int64(1465058505000000000), metricB.UnixNano())
assert.Equal(t, int64(1465058505000000000), metricB.Time().UnixNano())
}
func TestTimezoneLocalCompileFileAndParse(t *testing.T) {
@ -943,7 +943,7 @@ func TestTimezoneLocalCompileFileAndParse(t *testing.T) {
},
metricA.Fields())
assert.Equal(t, map[string]string{"response_code": "200"}, metricA.Tags())
assert.Equal(t, int64(1465040505000000000), metricA.UnixNano())
assert.Equal(t, int64(1465040505000000000), metricA.Time().UnixNano())
metricB, err := p.ParseLine(`[04/06/2016--12:41:45] 1.25 mystring dropme nomodifier`)
require.NotNil(t, metricB)
@ -956,5 +956,5 @@ func TestTimezoneLocalCompileFileAndParse(t *testing.T) {
},
metricB.Fields())
assert.Equal(t, map[string]string{}, metricB.Tags())
assert.Equal(t, time.Date(2016, time.June, 4, 12, 41, 45, 0, time.Local).UnixNano(), metricB.UnixNano())
assert.Equal(t, time.Date(2016, time.June, 4, 12, 41, 45, 0, time.Local).UnixNano(), metricB.Time().UnixNano())
}

2
plugins/inputs/nats_consumer/nats_consumer_test.go
View File

@ -59,7 +59,7 @@ func TestRunParserInvalidMsg(t *testing.T) {
in <- natsMsg(invalidMsg)
acc.WaitError(1)
assert.Contains(t, acc.Errors[0].Error(), "E! subject: telegraf, error: metric parsing error")
assert.Contains(t, acc.Errors[0].Error(), "E! subject: telegraf, error: metric parse error")
assert.EqualValues(t, 0, acc.NMetrics())
}

8
plugins/inputs/prometheus/parser_test.go
View File

@ -111,9 +111,11 @@ func TestParseValidPrometheus(t *testing.T) {
"gauge": float64(1),
}, metrics[0].Fields())
assert.Equal(t, map[string]string{
"osVersion": "CentOS Linux 7 (Core)",
"dockerVersion": "1.8.2",
"kernelVersion": "3.10.0-229.20.1.el7.x86_64",
"osVersion": "CentOS Linux 7 (Core)",
"cadvisorRevision": "",
"cadvisorVersion": "",
"dockerVersion": "1.8.2",
"kernelVersion": "3.10.0-229.20.1.el7.x86_64",
}, metrics[0].Tags())
// Counter value

6
plugins/inputs/udp_listener/udp_listener_test.go
View File

@ -47,11 +47,13 @@ func TestHighTrafficUDP(t *testing.T) {
ServiceAddress: ":8126",
AllowedPendingMessages: 100000,
}
listener.parser, _ = parsers.NewInfluxParser()
var err error
listener.parser, err = parsers.NewInfluxParser()
require.NoError(t, err)
acc := &testutil.Accumulator{}
// send multiple messages to socket
err := listener.Start(acc)
err = listener.Start(acc)
require.NoError(t, err)
conn, err := net.Dial("udp", "127.0.0.1:8126")

2
plugins/outputs/file/file.go
View File

@ -97,7 +97,7 @@ func (f *File) Write(metrics []telegraf.Metric) error {
}
_, err = f.writer.Write(b)
if err != nil {
return fmt.Errorf("failed to write message: %s, %s", metric.Serialize(), err)
return fmt.Errorf("failed to write message: %s, %s", b, err)
}
}
return nil

7
plugins/outputs/graylog/graylog.go
View File

@ -7,12 +7,13 @@ import (
"encoding/binary"
ejson "encoding/json"
"fmt"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/outputs"
"io"
"math"
"net"
"os"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/outputs"
)
const (
@ -212,7 +213,7 @@ func serialize(metric telegraf.Metric) ([]string, error) {
m := make(map[string]interface{})
m["version"] = "1.1"
m["timestamp"] = metric.UnixNano() / 1000000000
m["timestamp"] = metric.Time().UnixNano() / 1000000000
m["short_message"] = "telegraf"
m["name"] = metric.Name()

72
plugins/outputs/influxdb/README.md
View File

@ -1,35 +1,40 @@
# InfluxDB Output Plugin
This plugin writes to [InfluxDB](https://www.influxdb.com) via HTTP or UDP.
This InfluxDB output plugin writes metrics to the [InfluxDB](https://github.com/influxdata/influxdb) HTTP or UDP service.
### Configuration:
```toml
# Configuration for influxdb server to send metrics to
# Configuration for sending metrics to InfluxDB
[[outputs.influxdb]]
## The full HTTP or UDP URL for your InfluxDB instance.
##
## Multiple urls can be specified as part of the same cluster,
## this means that only ONE of the urls will be written to each interval.
# urls = ["udp://127.0.0.1:8089"] # UDP endpoint example
urls = ["http://127.0.0.1:8086"] # required
## The target database for metrics (telegraf will create it if not exists).
database = "telegraf" # required
## Multiple URLs can be specified for a single cluster, only ONE of the
## urls will be written to each interval.
# urls = ["udp://127.0.0.1:8089"]
# urls = ["http://127.0.0.1:8086"]
## The target database for metrics; will be created as needed.
# database = "telegraf"
## Name of existing retention policy to write to. Empty string writes to
## the default retention policy.
retention_policy = ""
## Write consistency (clusters only), can be: "any", "one", "quorum", "all"
write_consistency = "any"
# retention_policy = ""
## Write timeout (for the InfluxDB client), formatted as a string.
## If not provided, will default to 5s. 0s means no timeout (not recommended).
timeout = "5s"
## Write consistency (clusters only), can be: "any", "one", "quorum", "all"
# write_consistency = "any"
## Timeout for HTTP messages.
# timeout = "5s"
## HTTP Basic Auth
# username = "telegraf"
# password = "metricsmetricsmetricsmetrics"
## Set the user agent for HTTP POSTs (can be useful for log differentiation)
## HTTP User-Agent
# user_agent = "telegraf"
## Set UDP payload size, defaults to InfluxDB UDP Client default (512 bytes)
## UDP payload size is the maximum packet size to send.
# udp_payload = 512
## Optional SSL Config
@ -39,37 +44,14 @@ This plugin writes to [InfluxDB](https://www.influxdb.com) via HTTP or UDP.
## Use SSL but skip chain & host verification
# insecure_skip_verify = false
## HTTP Proxy Config
## HTTP Proxy override, if unset values the standard proxy environment
## variables are consulted to determine which proxy, if any, should be used.
# http_proxy = "http://corporate.proxy:3128"
## Optional HTTP headers
## Additional HTTP headers
# http_headers = {"X-Special-Header" = "Special-Value"}
## Compress each HTTP request payload using GZIP.
# content_encoding = "gzip"
## HTTP Content-Encoding for write request body, can be set to "gzip" to
## compress body or "identity" to apply no encoding.
# content_encoding = "identity"
```
### Required parameters:
* `urls`: List of strings, this is for InfluxDB clustering
support. On each flush interval, Telegraf will randomly choose one of the urls
to write to. Each URL should start with either `http://` or `udp://`
* `database`: The name of the database to write to.
### Optional parameters:
* `write_consistency`: Write consistency (clusters only), can be: "any", "one", "quorum", "all".
* `retention_policy`: Name of existing retention policy to write to. Empty string writes to the default retention policy.
* `timeout`: Write timeout (for the InfluxDB client), formatted as a string. If not provided, will default to 5s. 0s means no timeout (not recommended).
* `username`: Username for influxdb
* `password`: Password for influxdb
* `user_agent`: Set the user agent for HTTP POSTs (can be useful for log differentiation)
* `udp_payload`: Set UDP payload size, defaults to InfluxDB UDP Client default (512 bytes)
* `ssl_ca`: SSL CA
* `ssl_cert`: SSL CERT
* `ssl_key`: SSL key
* `insecure_skip_verify`: Use SSL but skip chain & host verification (default: false)
* `http_proxy`: HTTP Proxy URI
* `http_headers`: HTTP headers to add to each HTTP request
* `content_encoding`: Compress each HTTP request payload using gzip if set to: "gzip"

16
plugins/outputs/influxdb/client/client.go
View File

@ -1,16 +0,0 @@
package client
import "io"
type Client interface {
Query(command string) error
WriteStream(b io.Reader) error
Close() error
}
type WriteParams struct {
Database string
RetentionPolicy string
Precision string
Consistency string
}

277
plugins/outputs/influxdb/client/http.go
View File

@ -1,277 +0,0 @@
package client
import (
"bytes"
"compress/gzip"
"crypto/tls"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"path"
"time"
)
var (
defaultRequestTimeout = time.Second * 5
)
func NewHTTP(config HTTPConfig, defaultWP WriteParams) (Client, error) {
// validate required parameters:
if len(config.URL) == 0 {
return nil, fmt.Errorf("config.URL is required to create an HTTP client")
}
if len(defaultWP.Database) == 0 {
return nil, fmt.Errorf("A default database is required to create an HTTP client")
}
// set defaults:
if config.Timeout == 0 {
config.Timeout = defaultRequestTimeout
}
// parse URL:
u, err := url.Parse(config.URL)
if err != nil {
return nil, fmt.Errorf("error parsing config.URL: %s", err)
}
if u.Scheme != "http" && u.Scheme != "https" {
return nil, fmt.Errorf("config.URL scheme must be http(s), got %s", u.Scheme)
}
var transport http.Transport
if len(config.HTTPProxy) > 0 {
proxyURL, err := url.Parse(config.HTTPProxy)
if err != nil {
return nil, fmt.Errorf("error parsing config.HTTPProxy: %s", err)
}
transport = http.Transport{
Proxy: http.ProxyURL(proxyURL),
TLSClientConfig: config.TLSConfig,
}
} else {
transport = http.Transport{
Proxy: http.ProxyFromEnvironment,
TLSClientConfig: config.TLSConfig,
}
}
return &httpClient{
writeURL: writeURL(u, defaultWP),
config: config,
url: u,
client: &http.Client{
Timeout: config.Timeout,
Transport: &transport,
},
}, nil
}
type HTTPHeaders map[string]string
type HTTPConfig struct {
// URL should be of the form "http://host:port" (REQUIRED)
URL string
// UserAgent sets the User-Agent header.
UserAgent string
// Timeout specifies a time limit for requests made by this
// Client. The timeout includes connection time, any
// redirects, and reading the response body. The timer remains
// running after Get, Head, Post, or Do return and will
// interrupt reading of the Response.Body.
//
// A Timeout of zero means no timeout.
Timeout time.Duration
// Username is the basic auth username for the server.
Username string
// Password is the basic auth password for the server.
Password string
// TLSConfig is the tls auth settings to use for each request.
TLSConfig *tls.Config
// Proxy URL should be of the form "http://host:port"
HTTPProxy string
// HTTP headers to append to HTTP requests.
HTTPHeaders HTTPHeaders
// The content encoding mechanism to use for each request.
ContentEncoding string
}
// Response represents a list of statement results.
type Response struct {
// ignore Results:
Results []interface{} `json:"-"`
Err string `json:"error,omitempty"`
}
// Error returns the first error from any statement.
// Returns nil if no errors occurred on any statements.
func (r *Response) Error() error {
if r.Err != "" {
return fmt.Errorf(r.Err)
}
return nil
}
type httpClient struct {
writeURL string
config HTTPConfig
client *http.Client
url *url.URL
}
func (c *httpClient) Query(command string) error {
req, err := c.makeRequest(queryURL(c.url, command), bytes.NewReader([]byte("")))
if err != nil {
return err
}
return c.doRequest(req, http.StatusOK)
}
func (c *httpClient) WriteStream(r io.Reader) error {
req, err := c.makeWriteRequest(r, c.writeURL)
if err != nil {
return err
}
return c.doRequest(req, http.StatusNoContent)
}
func (c *httpClient) doRequest(
req *http.Request,
expectedCode int,
) error {
resp, err := c.client.Do(req)
if err != nil {
return err
}
code := resp.StatusCode
// If it's a "no content" response, then release and return nil
if code == http.StatusNoContent {
return nil
}
// not a "no content" response, so parse the result:
var response Response
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("Fatal error reading body: %s", err)
}
decErr := json.Unmarshal(body, &response)
// If we got a JSON decode error, send that back
if decErr != nil {
err = fmt.Errorf("Unable to decode json: received status code %d err: %s", code, decErr)
}
// Unexpected response code OR error in JSON response body overrides
// a JSON decode error:
if code != expectedCode || response.Error() != nil {
err = fmt.Errorf("Response Error: Status Code [%d], expected [%d], [%v]",
code, expectedCode, response.Error())
}
return err
}
func (c *httpClient) makeWriteRequest(
body io.Reader,
writeURL string,
) (*http.Request, error) {
req, err := c.makeRequest(writeURL, body)
if err != nil {
return nil, err
}
if c.config.ContentEncoding == "gzip" {
req.Header.Set("Content-Encoding", "gzip")
}
return req, nil
}
func (c *httpClient) makeRequest(uri string, body io.Reader) (*http.Request, error) {
var req *http.Request
var err error
if c.config.ContentEncoding == "gzip" {
body, err = compressWithGzip(body)
if err != nil {
return nil, err
}
}
req, err = http.NewRequest("POST", uri, body)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "text/plain; charset=utf-8")
for header, value := range c.config.HTTPHeaders {
req.Header.Set(header, value)
}
req.Header.Set("User-Agent", c.config.UserAgent)
if c.config.Username != "" && c.config.Password != "" {
req.SetBasicAuth(c.config.Username, c.config.Password)
}
return req, nil
}
func compressWithGzip(data io.Reader) (io.Reader, error) {
pr, pw := io.Pipe()
gw := gzip.NewWriter(pw)
var err error
go func() {
_, err = io.Copy(gw, data)
gw.Close()
pw.Close()
}()
return pr, err
}
func (c *httpClient) Close() error {
// Nothing to do.
return nil
}
func writeURL(u *url.URL, wp WriteParams) string {
params := url.Values{}
params.Set("db", wp.Database)
if wp.RetentionPolicy != "" {
params.Set("rp", wp.RetentionPolicy)
}
if wp.Precision != "n" && wp.Precision != "" {
params.Set("precision", wp.Precision)
}
if wp.Consistency != "one" && wp.Consistency != "" {
params.Set("consistency", wp.Consistency)
}
u.RawQuery = params.Encode()
p := u.Path
u.Path = path.Join(p, "write")
s := u.String()
u.Path = p
return s
}
func queryURL(u *url.URL, command string) string {
params := url.Values{}
params.Set("q", command)
u.RawQuery = params.Encode()
p := u.Path
u.Path = path.Join(p, "query")
s := u.String()
u.Path = p
return s
}

335
plugins/outputs/influxdb/client/http_test.go
View File

@ -1,335 +0,0 @@
package client
import (
"bytes"
"compress/gzip"
"fmt"
"net/http"
"net/http/httptest"
"testing"
"github.com/stretchr/testify/assert"
)
func TestHTTPClient_Write(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
// test form values:
if r.FormValue("db") != "test" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"wrong db name"}`)
}
if r.FormValue("rp") != "policy" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"wrong rp name"}`)
}
if r.FormValue("precision") != "ns" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"wrong precision"}`)
}
if r.FormValue("consistency") != "all" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"wrong consistency"}`)
}
// test that user agent is set properly
if r.UserAgent() != "test-agent" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"wrong agent name"}`)
}
// test basic auth params
user, pass, ok := r.BasicAuth()
if !ok {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"basic auth not set"}`)
}
if user != "test-user" || pass != "test-password" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"basic auth incorrect"}`)
}
// test that user-specified http header is set properly
if r.Header.Get("X-Test-Header") != "Test-Value" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"wrong http header value"}`)
}
// Validate Content-Length Header
if r.ContentLength != 13 {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
msg := fmt.Sprintf(`{"results":[{}],"error":"Content-Length: expected [13], got [%d]"}`, r.ContentLength)
fmt.Fprintln(w, msg)
}
// Validate the request body:
buf := make([]byte, 100)
n, _ := r.Body.Read(buf)
expected := "cpu value=99"
got := string(buf[0 : n-1])
if expected != got {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
msg := fmt.Sprintf(`{"results":[{}],"error":"expected [%s], got [%s]"}`, expected, got)
fmt.Fprintln(w, msg)
}
w.WriteHeader(http.StatusNoContent)
w.Header().Set("Content-Type", "application/json")
case "/query":
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}]}`)
}
}))
defer ts.Close()
config := HTTPConfig{
URL: ts.URL,
UserAgent: "test-agent",
Username: "test-user",
Password: "test-password",
HTTPHeaders: HTTPHeaders{
"X-Test-Header": "Test-Value",
},
}
wp := WriteParams{
Database: "test",
RetentionPolicy: "policy",
Precision: "ns",
Consistency: "all",
}
client, err := NewHTTP(config, wp)
defer client.Close()
assert.NoError(t, err)
err = client.WriteStream(bytes.NewReader([]byte("cpu value=99\n")))
assert.NoError(t, err)
}
func TestHTTPClient_Write_Errors(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
w.WriteHeader(http.StatusTeapot)
case "/query":
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}]}`)
}
}))
defer ts.Close()
config := HTTPConfig{
URL: ts.URL,
}
defaultWP := WriteParams{
Database: "test",
}
client, err := NewHTTP(config, defaultWP)
defer client.Close()
assert.NoError(t, err)
lp := []byte("cpu value=99\n")
err = client.WriteStream(bytes.NewReader(lp))
assert.Error(t, err)
}
func TestNewHTTPErrors(t *testing.T) {
// No URL:
config := HTTPConfig{}
defaultWP := WriteParams{
Database: "test",
}
client, err := NewHTTP(config, defaultWP)
assert.Error(t, err)
assert.Nil(t, client)
// No Database:
config = HTTPConfig{
URL: "http://localhost:8086",
}
defaultWP = WriteParams{}
client, err = NewHTTP(config, defaultWP)
assert.Nil(t, client)
assert.Error(t, err)
// Invalid URL:
config = HTTPConfig{
URL: "http://192.168.0.%31:8080/",
}
defaultWP = WriteParams{
Database: "test",
}
client, err = NewHTTP(config, defaultWP)
assert.Nil(t, client)
assert.Error(t, err)
// Invalid URL scheme:
config = HTTPConfig{
URL: "mailto://localhost:8086",
}
defaultWP = WriteParams{
Database: "test",
}
client, err = NewHTTP(config, defaultWP)
assert.Nil(t, client)
assert.Error(t, err)
}
func TestHTTPClient_Query(t *testing.T) {
command := "CREATE DATABASE test"
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
w.WriteHeader(http.StatusNoContent)
case "/query":
// validate the create database command is correct
got := r.FormValue("q")
if got != command {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
msg := fmt.Sprintf(`{"results":[{}],"error":"got %s, expected %s"}`, got, command)
fmt.Fprintln(w, msg)
}
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}]}`)
}
}))
defer ts.Close()
config := HTTPConfig{
URL: ts.URL,
}
defaultWP := WriteParams{
Database: "test",
}
client, err := NewHTTP(config, defaultWP)
defer client.Close()
assert.NoError(t, err)
err = client.Query(command)
assert.NoError(t, err)
}
func TestHTTPClient_Query_ResponseError(t *testing.T) {
command := "CREATE DATABASE test"
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
w.WriteHeader(http.StatusNoContent)
case "/query":
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
msg := fmt.Sprintf(`{"results":[{}],"error":"couldnt create database"}`)
fmt.Fprintln(w, msg)
}
}))
defer ts.Close()
config := HTTPConfig{
URL: ts.URL,
}
defaultWP := WriteParams{
Database: "test",
}
client, err := NewHTTP(config, defaultWP)
defer client.Close()
assert.NoError(t, err)
err = client.Query(command)
assert.Error(t, err)
}
func TestHTTPClient_Query_JSONDecodeError(t *testing.T) {
command := "CREATE DATABASE test"
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
w.WriteHeader(http.StatusNoContent)
case "/query":
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
// write JSON missing a ']'
msg := fmt.Sprintf(`{"results":[{}}`)
fmt.Fprintln(w, msg)
}
}))
defer ts.Close()
config := HTTPConfig{
URL: ts.URL,
}
defaultWP := WriteParams{
Database: "test",
}
client, err := NewHTTP(config, defaultWP)
defer client.Close()
assert.NoError(t, err)
err = client.Query(command)
assert.Error(t, err)
assert.Contains(t, err.Error(), "json")
}
func TestGzipCompression(t *testing.T) {
influxLine := "cpu value=99\n"
// Compress the payload using GZIP.
payload := bytes.NewReader([]byte(influxLine))
compressed, err := compressWithGzip(payload)
assert.Nil(t, err)
// Decompress the compressed payload and make sure
// that its original value has not changed.
gr, err := gzip.NewReader(compressed)
assert.Nil(t, err)
gr.Close()
var uncompressed bytes.Buffer
_, err = uncompressed.ReadFrom(gr)
assert.Nil(t, err)
assert.Equal(t, []byte(influxLine), uncompressed.Bytes())
}
func TestHTTPClient_PathPrefix(t *testing.T) {
prefix := "/some/random/prefix"
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case prefix + "/write":
w.WriteHeader(http.StatusNoContent)
w.Header().Set("Content-Type", "application/json")
case prefix + "/query":
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}]}`)
default:
w.WriteHeader(http.StatusNotFound)
msg := fmt.Sprintf("Path not found: %s", r.URL.Path)
fmt.Fprintln(w, msg)
}
}))
defer ts.Close()
config := HTTPConfig{
URL: ts.URL + prefix,
}
wp := WriteParams{
Database: "test",
}
client, err := NewHTTP(config, wp)
defer client.Close()
assert.NoError(t, err)
err = client.Query("CREATE DATABASE test")
assert.NoError(t, err)
err = client.WriteStream(bytes.NewReader([]byte("cpu value=99\n")))
assert.NoError(t, err)
}

105
plugins/outputs/influxdb/client/udp.go
View File

@ -1,105 +0,0 @@
package client
import (
"fmt"
"io"
"log"
"net"
"net/url"
)
const (
// UDPPayloadSize is a reasonable default payload size for UDP packets that
// could be travelling over the internet.
UDPPayloadSize = 512
)
// UDPConfig is the config data needed to create a UDP Client
type UDPConfig struct {
// URL should be of the form "udp://host:port"
// or "udp://[ipv6-host%zone]:port".
URL string
// PayloadSize is the maximum size of a UDP client message, optional
// Tune this based on your network. Defaults to UDPPayloadSize.
PayloadSize int
}
// NewUDP will return an instance of the telegraf UDP output plugin for influxdb
func NewUDP(config UDPConfig) (Client, error) {
p, err := url.Parse(config.URL)
if err != nil {
return nil, fmt.Errorf("Error parsing UDP url [%s]: %s", config.URL, err)
}
udpAddr, err := net.ResolveUDPAddr("udp", p.Host)
if err != nil {
return nil, fmt.Errorf("Error resolving UDP Address [%s]: %s", p.Host, err)
}
conn, err := net.DialUDP("udp", nil, udpAddr)
if err != nil {
return nil, fmt.Errorf("Error dialing UDP address [%s]: %s",
udpAddr.String(), err)
}
size := config.PayloadSize
if size == 0 {
size = UDPPayloadSize
}
buf := make([]byte, size)
return &udpClient{conn: conn, buffer: buf}, nil
}
type udpClient struct {
conn *net.UDPConn
buffer []byte
}
// Query will send the provided query command to the client, returning an error if any issues arise
func (c *udpClient) Query(command string) error {
return nil
}
// WriteStream will send the provided data through to the client, contentLength is ignored by the UDP client
func (c *udpClient) WriteStream(r io.Reader) error {
var totaln int
for {
nR, err := r.Read(c.buffer)
if nR == 0 {
break
}
if err != io.EOF && err != nil {
return err
}
if c.buffer[nR-1] == uint8('\n') {
nW, err := c.conn.Write(c.buffer[0:nR])
totaln += nW
if err != nil {
return err
}
} else {
log.Printf("E! Could not fit point into UDP payload; dropping")
// Scan forward until next line break to realign.
for {
nR, err := r.Read(c.buffer)
if nR == 0 {
break
}
if err != io.EOF && err != nil {
return err
}
if c.buffer[nR-1] == uint8('\n') {
break
}
}
}
}
return nil
}
// Close will terminate the provided client connection
func (c *udpClient) Close() error {
return c.conn.Close()
}

89
plugins/outputs/influxdb/client/udp_test.go
View File

@ -1,89 +0,0 @@
package client
import (
"net"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
"github.com/stretchr/testify/assert"
)
func TestUDPClient(t *testing.T) {
config := UDPConfig{
URL: "udp://localhost:8089",
}
client, err := NewUDP(config)
assert.NoError(t, err)
err = client.Query("ANY QUERY RETURNS NIL")
assert.NoError(t, err)
assert.NoError(t, client.Close())
}
func TestNewUDPClient_Errors(t *testing.T) {
// url.Parse Error
config := UDPConfig{
URL: "udp://localhost%35:8089",
}
_, err := NewUDP(config)
assert.Error(t, err)
// ResolveUDPAddr Error
config = UDPConfig{
URL: "udp://localhost:999999",
}
_, err = NewUDP(config)
assert.Error(t, err)
}
func TestUDPClient_Write(t *testing.T) {
config := UDPConfig{
URL: "udp://localhost:8199",
}
client, err := NewUDP(config)
assert.NoError(t, err)
packets := make(chan string, 100)
address, err := net.ResolveUDPAddr("udp", "localhost:8199")
assert.NoError(t, err)
listener, err := net.ListenUDP("udp", address)
defer listener.Close()
assert.NoError(t, err)
go func() {
buf := make([]byte, 200)
for {
n, _, err := listener.ReadFromUDP(buf)
if err != nil {
packets <- err.Error()
}
packets <- string(buf[0:n])
}
}()
assert.NoError(t, client.Close())
config = UDPConfig{
URL: "udp://localhost:8199",
PayloadSize: 40,
}
client4, err := NewUDP(config)
assert.NoError(t, err)
ts := time.Unix(1484142943, 0)
m1, _ := metric.New("test", map[string]string{},
map[string]interface{}{"this_is_a_very_long_field_name": 1.1}, ts)
m2, _ := metric.New("test", map[string]string{},
map[string]interface{}{"value": 1.1}, ts)
ms := []telegraf.Metric{m1, m2}
reader := metric.NewReader(ms)
err = client4.WriteStream(reader)
assert.NoError(t, err)
pkt := <-packets
assert.Equal(t, "test value=1.1 1484142943000000000\n", pkt)
assert.NoError(t, client4.Close())
}

404
plugins/outputs/influxdb/http.go Normal file
View File

@ -0,0 +1,404 @@
package influxdb
import (
"compress/gzip"
"context"
"crypto/tls"
"encoding/json"
"fmt"
"io"
"log"
"net/http"
"net/url"
"path"
"strings"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/serializers/influx"
)
type APIErrorType int
const (
_ APIErrorType = iota
DatabaseNotFound
)
const (
defaultRequestTimeout = time.Second * 5
defaultDatabase = "telegraf"
defaultUserAgent = "telegraf"
errStringDatabaseNotFound = "database not found"
errStringHintedHandoffNotEmpty = "hinted handoff queue not empty"
errStringPartialWrite = "partial write"
errStringPointsBeyondRP = "points beyond retention policy"
errStringUnableToParse = "unable to parse"
)
var (
// Escape an identifier in InfluxQL.
escapeIdentifier = strings.NewReplacer(
"\n", `\n`,
`\`, `\\`,
`"`, `\"`,
)
)
// APIError is an error reported by the InfluxDB server
type APIError struct {
StatusCode int
Title string
Description string
Type APIErrorType
}
func (e APIError) Error() string {
if e.Description != "" {
return fmt.Sprintf("%s: %s", e.Title, e.Description)
}
return e.Title
}
// QueryResponse is the response body from the /query endpoint
type QueryResponse struct {
Results []QueryResult `json:"results"`
}
type QueryResult struct {
Err string `json:"error,omitempty"`
}
func (r QueryResponse) Error() string {
if len(r.Results) > 0 {
return r.Results[0].Err
}
return ""
}
// WriteResponse is the response body from the /write endpoint
type WriteResponse struct {
Err string `json:"error,omitempty"`
}
func (r WriteResponse) Error() string {
return r.Err
}
type HTTPConfig struct {
URL *url.URL
UserAgent string
Timeout time.Duration
Username string
Password string
TLSConfig *tls.Config
Proxy *url.URL
Headers map[string]string
ContentEncoding string
Database string
RetentionPolicy string
Consistency string
Serializer *influx.Serializer
}
type httpClient struct {
WriteURL string
QueryURL string
ContentEncoding string
Timeout time.Duration
Username string
Password string
Headers map[string]string
client *http.Client
serializer *influx.Serializer
url *url.URL
database string
}
func NewHTTPClient(config *HTTPConfig) (*httpClient, error) {
if config.URL == nil {
return nil, ErrMissingURL
}
database := config.Database
if database == "" {
database = defaultDatabase
}
timeout := config.Timeout
if timeout == 0 {
timeout = defaultRequestTimeout
}
userAgent := config.UserAgent
if userAgent == "" {
userAgent = defaultUserAgent
}
var headers = make(map[string]string, len(config.Headers)+1)
headers["User-Agent"] = userAgent
for k, v := range config.Headers {
headers[k] = v
}
var proxy func(*http.Request) (*url.URL, error)
if config.Proxy != nil {
proxy = http.ProxyURL(config.Proxy)
} else {
proxy = http.ProxyFromEnvironment
}
serializer := config.Serializer
if serializer == nil {
serializer = influx.NewSerializer()
}
writeURL := makeWriteURL(
config.URL,
database,
config.RetentionPolicy,
config.Consistency)
queryURL := makeQueryURL(config.URL)
client := &httpClient{
serializer: serializer,
client: &http.Client{
Timeout: timeout,
Transport: &http.Transport{
Proxy: proxy,
TLSClientConfig: config.TLSConfig,
},
},
database: database,
url: config.URL,
WriteURL: writeURL,
QueryURL: queryURL,
ContentEncoding: config.ContentEncoding,
Timeout: timeout,
Username: config.Username,
Password: config.Password,
Headers: headers,
}
return client, nil
}
// URL returns the origin URL that this client connects too.
func (c *httpClient) URL() string {
return c.url.String()
}
// URL returns the database that this client connects too.
func (c *httpClient) Database() string {
return c.database
}
// CreateDatabase attemps to create a new database in the InfluxDB server.
// Note that some names are not allowed by the server, notably those with
// non-printable characters or slashes.
func (c *httpClient) CreateDatabase(ctx context.Context) error {
query := fmt.Sprintf(`CREATE DATABASE "%s"`,
escapeIdentifier.Replace(c.database))
req, err := c.makeQueryRequest(query)
resp, err := c.client.Do(req.WithContext(ctx))
if err != nil {
return err
}
defer resp.Body.Close()
queryResp := &QueryResponse{}
dec := json.NewDecoder(resp.Body)
err = dec.Decode(queryResp)
if err != nil {
if resp.StatusCode == 200 {
return nil
}
return &APIError{
StatusCode: resp.StatusCode,
Title: resp.Status,
}
}
// Even with a 200 response there can be an error
if resp.StatusCode == http.StatusOK && queryResp.Error() == "" {
return nil
}
return &APIError{
StatusCode: resp.StatusCode,
Title: resp.Status,
Description: queryResp.Error(),
}
}
// Write sends the metrics to InfluxDB
func (c *httpClient) Write(ctx context.Context, metrics []telegraf.Metric) error {
var err error
reader := influx.NewReader(metrics, c.serializer)
req, err := c.makeWriteRequest(reader)
if err != nil {
return err
}
resp, err := c.client.Do(req.WithContext(ctx))
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusNoContent {
return nil
}
writeResp := &WriteResponse{}
dec := json.NewDecoder(resp.Body)
var desc string
err = dec.Decode(writeResp)
if err == nil {
desc = writeResp.Err
}
if strings.Contains(desc, errStringDatabaseNotFound) {
return &APIError{
StatusCode: resp.StatusCode,
Title: resp.Status,
Description: desc,
Type: DatabaseNotFound,
}
}
// This "error" is an informational message about the state of the
// InfluxDB cluster.
if strings.Contains(desc, errStringHintedHandoffNotEmpty) {
return nil
}
// Points beyond retention policy is returned when points are immediately
// discarded for being older than the retention policy. Usually this not
// a cause for concern and we don't want to retry.
if strings.Contains(desc, errStringPointsBeyondRP) {
log.Printf("W! [outputs.influxdb]: when writing to [%s]: received error %v",
c.URL(), desc)
return nil
}
// Other partial write errors, such as "field type conflict", are not
// correctable at this point and so the point is dropped instead of
// retrying.
if strings.Contains(desc, errStringPartialWrite) {
log.Printf("E! [outputs.influxdb]: when writing to [%s]: received error %v; discarding points",
c.URL(), desc)
return nil
}
// This error indicates a bug in either Telegraf line protocol
// serialization, retries would not be successful.
if strings.Contains(desc, errStringUnableToParse) {
log.Printf("E! [outputs.influxdb]: when writing to [%s]: received error %v; discarding points",
c.URL(), desc)
return nil
}
return &APIError{
StatusCode: resp.StatusCode,
Title: resp.Status,
Description: desc,
}
}
func (c *httpClient) makeQueryRequest(query string) (*http.Request, error) {
params := url.Values{}
params.Set("q", query)
form := strings.NewReader(params.Encode())
req, err := http.NewRequest("POST", c.QueryURL, form)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
c.addHeaders(req)
return req, nil
}
func (c *httpClient) makeWriteRequest(body io.Reader) (*http.Request, error) {
var err error
if c.ContentEncoding == "gzip" {
body, err = compressWithGzip(body)
if err != nil {
return nil, err
}
}
req, err := http.NewRequest("POST", c.WriteURL, body)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "text/plain; charset=utf-8")
c.addHeaders(req)
if c.ContentEncoding == "gzip" {
req.Header.Set("Content-Encoding", "gzip")
}
return req, nil
}
func compressWithGzip(data io.Reader) (io.Reader, error) {
pr, pw := io.Pipe()
gw := gzip.NewWriter(pw)
var err error
go func() {
_, err = io.Copy(gw, data)
gw.Close()
pw.Close()
}()
return pr, err
}
func (c *httpClient) addHeaders(req *http.Request) {
if c.Username != "" || c.Password != "" {
req.SetBasicAuth(c.Username, c.Password)
}
for header, value := range c.Headers {
req.Header.Set(header, value)
}
}
func makeWriteURL(loc *url.URL, db, rp, consistency string) string {
params := url.Values{}
params.Set("db", db)
if rp != "" {
params.Set("rp", rp)
}
if consistency != "one" && consistency != "" {
params.Set("consistency", consistency)
}
u := *loc
u.Path = path.Join(u.Path, "write")
u.RawQuery = params.Encode()
return u.String()
}
func makeQueryURL(loc *url.URL) string {
u := *loc
u.Path = path.Join(u.Path, "query")
return u.String()
}

558
plugins/outputs/influxdb/http_test.go Normal file
View File

@ -0,0 +1,558 @@
package influxdb_test
import (
"bytes"
"compress/gzip"
"context"
"fmt"
"io/ioutil"
"log"
"net/http"
"net/http/httptest"
"net/url"
"strings"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
"github.com/influxdata/telegraf/plugins/outputs/influxdb"
"github.com/stretchr/testify/require"
)
func getHTTPURL() *url.URL {
u, err := url.Parse("http://localhost")
if err != nil {
panic(err)
}
return u
}
func TestHTTP_EmptyConfig(t *testing.T) {
config := &influxdb.HTTPConfig{}
_, err := influxdb.NewHTTPClient(config)
require.Error(t, err)
require.Contains(t, err.Error(), influxdb.ErrMissingURL.Error())
}
func TestHTTP_MinimalConfig(t *testing.T) {
config := &influxdb.HTTPConfig{
URL: getHTTPURL(),
}
_, err := influxdb.NewHTTPClient(config)
require.NoError(t, err)
}
func TestHTTP_CreateDatabase(t *testing.T) {
ts := httptest.NewServer(http.NotFoundHandler())
defer ts.Close()
u, err := url.Parse(fmt.Sprintf("http://%s", ts.Listener.Addr().String()))
require.NoError(t, err)
successResponse := []byte(`{"results": [{"statement_id": 0}]}`)
tests := []struct {
name string
config *influxdb.HTTPConfig
database string
queryHandlerFunc func(t *testing.T, w http.ResponseWriter, r *http.Request)
errFunc func(t *testing.T, err error)
}{
{
name: "success",
config: &influxdb.HTTPConfig{
URL: u,
Database: "xyzzy",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, `CREATE DATABASE "xyzzy"`, r.FormValue("q"))
w.WriteHeader(http.StatusOK)
w.Write(successResponse)
},
},
{
name: "send basic auth",
config: &influxdb.HTTPConfig{
URL: u,
Username: "guy",
Password: "smiley",
Database: "telegraf",
},
database: "telegraf",
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
username, password, ok := r.BasicAuth()
require.True(t, ok)
require.Equal(t, "guy", username)
require.Equal(t, "smiley", password)
w.WriteHeader(http.StatusOK)
w.Write(successResponse)
},
},
{
name: "send user agent",
config: &influxdb.HTTPConfig{
URL: u,
Headers: map[string]string{
"A": "B",
"C": "D",
},
Database: "telegraf",
},
database: `a " b`,
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, r.Header.Get("A"), "B")
require.Equal(t, r.Header.Get("C"), "D")
w.WriteHeader(http.StatusOK)
w.Write(successResponse)
},
},
{
name: "send headers",
config: &influxdb.HTTPConfig{
URL: u,
Headers: map[string]string{
"A": "B",
"C": "D",
},
Database: "telegraf",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, r.Header.Get("A"), "B")
require.Equal(t, r.Header.Get("C"), "D")
w.WriteHeader(http.StatusOK)
w.Write(successResponse)
},
},
{
name: "database default",
config: &influxdb.HTTPConfig{
URL: u,
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, `CREATE DATABASE "telegraf"`, r.FormValue("q"))
w.WriteHeader(http.StatusOK)
w.Write(successResponse)
},
},
{
name: "database name is escaped",
config: &influxdb.HTTPConfig{
URL: u,
Database: `a " b`,
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, `CREATE DATABASE "a \" b"`, r.FormValue("q"))
w.WriteHeader(http.StatusOK)
w.Write(successResponse)
},
},
{
name: "invalid database name creates api error",
config: &influxdb.HTTPConfig{
URL: u,
Database: `a \\ b`,
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
// Yes, 200 OK is the correct response...
w.WriteHeader(http.StatusOK)
w.Write([]byte(`{"results": [{"error": "invalid name", "statement_id": 0}]}`))
},
errFunc: func(t *testing.T, err error) {
expected := &influxdb.APIError{
StatusCode: 200,
Title: "200 OK",
Description: "invalid name",
}
require.Equal(t, expected, err)
},
},
{
name: "error with no response body",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
},
errFunc: func(t *testing.T, err error) {
expected := &influxdb.APIError{
StatusCode: 404,
Title: "404 Not Found",
}
require.Equal(t, expected, err)
},
},
{
name: "ok with no response body",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ts.Config.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/query":
tt.queryHandlerFunc(t, w, r)
return
default:
w.WriteHeader(http.StatusNotFound)
return
}
})
ctx := context.Background()
client, err := influxdb.NewHTTPClient(tt.config)
require.NoError(t, err)
err = client.CreateDatabase(ctx)
if tt.errFunc != nil {
tt.errFunc(t, err)
} else {
require.NoError(t, err)
}
})
}
}
func TestHTTP_Write(t *testing.T) {
ts := httptest.NewServer(http.NotFoundHandler())
defer ts.Close()
u, err := url.Parse(fmt.Sprintf("http://%s", ts.Listener.Addr().String()))
require.NoError(t, err)
tests := []struct {
name string
config *influxdb.HTTPConfig
queryHandlerFunc func(t *testing.T, w http.ResponseWriter, r *http.Request)
errFunc func(t *testing.T, err error)
logFunc func(t *testing.T, str string)
}{
{
name: "success",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, r.FormValue("db"), "telegraf")
body, err := ioutil.ReadAll(r.Body)
require.NoError(t, err)
require.Contains(t, string(body), "cpu value=42")
w.WriteHeader(http.StatusNoContent)
},
},
{
name: "send basic auth",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
Username: "guy",
Password: "smiley",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
username, password, ok := r.BasicAuth()
require.True(t, ok)
require.Equal(t, "guy", username)
require.Equal(t, "smiley", password)
w.WriteHeader(http.StatusNoContent)
},
},
{
name: "send user agent",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
UserAgent: "telegraf",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, r.Header.Get("User-Agent"), "telegraf")
w.WriteHeader(http.StatusNoContent)
},
},
{
name: "default database",
config: &influxdb.HTTPConfig{
URL: u,
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, "telegraf", r.FormValue("db"))
w.WriteHeader(http.StatusNoContent)
},
},
{
name: "send headers",
config: &influxdb.HTTPConfig{
URL: u,
Headers: map[string]string{
"A": "B",
"C": "D",
},
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, r.Header.Get("A"), "B")
require.Equal(t, r.Header.Get("C"), "D")
w.WriteHeader(http.StatusNoContent)
},
},
{
name: "send retention policy",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
RetentionPolicy: "foo",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, "foo", r.FormValue("rp"))
w.WriteHeader(http.StatusNoContent)
},
},
{
name: "send consistency",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
Consistency: "all",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
require.Equal(t, "all", r.FormValue("consistency"))
w.WriteHeader(http.StatusNoContent)
},
},
{
name: "hinted handoff not empty no log no error",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte(`{"error": "write failed: hinted handoff queue not empty"}`))
},
logFunc: func(t *testing.T, str string) {
require.False(t, strings.Contains(str, "hinted handoff queue not empty"))
},
},
{
name: "partial write errors are logged no error",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte(`{"error": "partial write: field type conflict:"}`))
},
logFunc: func(t *testing.T, str string) {
require.Contains(t, str, "partial write")
},
},
{
name: "parse errors are logged no error",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte(`{"error": "unable to parse 'cpu value': invalid field format"}`))
},
logFunc: func(t *testing.T, str string) {
require.Contains(t, str, "unable to parse")
},
},
{
name: "http error",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusBadGateway)
},
errFunc: func(t *testing.T, err error) {
expected := &influxdb.APIError{
StatusCode: 502,
Title: "502 Bad Gateway",
}
require.Equal(t, expected, err)
},
},
{
name: "http error with desc",
config: &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
},
queryHandlerFunc: func(t *testing.T, w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusServiceUnavailable)
w.Write([]byte(`{"error": "unknown error"}`))
},
errFunc: func(t *testing.T, err error) {
expected := &influxdb.APIError{
StatusCode: 503,
Title: "503 Service Unavailable",
Description: "unknown error",
}
require.Equal(t, expected, err)
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ts.Config.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
tt.queryHandlerFunc(t, w, r)
return
default:
w.WriteHeader(http.StatusNotFound)
return
}
})
var b bytes.Buffer
if tt.logFunc != nil {
log.SetOutput(&b)
}
ctx := context.Background()
m, err := metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
)
require.NoError(t, err)
metrics := []telegraf.Metric{m}
client, err := influxdb.NewHTTPClient(tt.config)
require.NoError(t, err)
err = client.Write(ctx, metrics)
if tt.errFunc != nil {
tt.errFunc(t, err)
} else {
require.NoError(t, err)
}
if tt.logFunc != nil {
tt.logFunc(t, b.String())
}
})
}
}
func TestHTTP_WritePathPrefix(t *testing.T) {
ts := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/x/y/z/query":
w.WriteHeader(http.StatusOK)
return
case "/x/y/z/write":
w.WriteHeader(http.StatusNoContent)
return
default:
w.WriteHeader(http.StatusNotFound)
return
}
},
),
)
defer ts.Close()
u, err := url.Parse(fmt.Sprintf("http://%s/x/y/z", ts.Listener.Addr().String()))
require.NoError(t, err)
ctx := context.Background()
m, err := metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
)
require.NoError(t, err)
metrics := []telegraf.Metric{m}
config := &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
}
client, err := influxdb.NewHTTPClient(config)
require.NoError(t, err)
err = client.CreateDatabase(ctx)
require.NoError(t, err)
err = client.Write(ctx, metrics)
require.NoError(t, err)
}
func TestHTTP_WriteContentEncodingGzip(t *testing.T) {
ts := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
require.Equal(t, r.Header.Get("Content-Encoding"), "gzip")
gr, err := gzip.NewReader(r.Body)
require.NoError(t, err)
body, err := ioutil.ReadAll(gr)
require.NoError(t, err)
require.Contains(t, string(body), "cpu value=42")
w.WriteHeader(http.StatusNoContent)
return
default:
w.WriteHeader(http.StatusNotFound)
return
}
},
),
)
defer ts.Close()
u, err := url.Parse(fmt.Sprintf("http://%s/", ts.Listener.Addr().String()))
require.NoError(t, err)
ctx := context.Background()
m, err := metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
)
require.NoError(t, err)
metrics := []telegraf.Metric{m}
config := &influxdb.HTTPConfig{
URL: u,
Database: "telegraf",
ContentEncoding: "gzip",
}
client, err := influxdb.NewHTTPClient(config)
require.NoError(t, err)
err = client.Write(ctx, metrics)
require.NoError(t, err)
}

314
plugins/outputs/influxdb/influxdb.go
View File

@ -1,29 +1,37 @@
package influxdb
import (
"context"
"errors"
"fmt"
"log"
"math/rand"
"strings"
"net/url"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/internal"
"github.com/influxdata/telegraf/metric"
"github.com/influxdata/telegraf/plugins/outputs"
"github.com/influxdata/telegraf/plugins/outputs/influxdb/client"
"github.com/influxdata/telegraf/plugins/serializers/influx"
)
var (
// Quote Ident replacer.
qiReplacer = strings.NewReplacer("\n", `\n`, `\`, `\\`, `"`, `\"`)
defaultURL = "http://localhost:8086"
ErrMissingURL = errors.New("missing URL")
)
type Client interface {
Write(context.Context, []telegraf.Metric) error
CreateDatabase(ctx context.Context) error
URL() string
Database() string
}
// InfluxDB struct is the primary data structure for the plugin
type InfluxDB struct {
// URL is only for backwards compatibility
URL string
URL string // url deprecated in 0.1.9; use urls
URLs []string `toml:"urls"`
Username string
Password string
@ -46,36 +54,45 @@ type InfluxDB struct {
// Use SSL but skip chain & host verification
InsecureSkipVerify bool
// Precision is only here for legacy support. It will be ignored.
Precision string
Precision string // precision deprecated in 1.0; value is ignored
clients []client.Client
clients []Client
CreateHTTPClientF func(config *HTTPConfig) (Client, error)
CreateUDPClientF func(config *UDPConfig) (Client, error)
serializer *influx.Serializer
}
var sampleConfig = `
## The full HTTP or UDP URL for your InfluxDB instance.
##
## Multiple urls can be specified as part of the same cluster,
## this means that only ONE of the urls will be written to each interval.
# urls = ["udp://127.0.0.1:8089"] # UDP endpoint example
urls = ["http://127.0.0.1:8086"] # required
## The target database for metrics (telegraf will create it if not exists).
database = "telegraf" # required
## Multiple URLs can be specified for a single cluster, only ONE of the
## urls will be written to each interval.
# urls = ["udp://127.0.0.1:8089"]
# urls = ["http://127.0.0.1:8086"]
## The target database for metrics; will be created as needed.
# database = "telegraf"
## Name of existing retention policy to write to. Empty string writes to
## the default retention policy.
retention_policy = ""
## Write consistency (clusters only), can be: "any", "one", "quorum", "all"
write_consistency = "any"
# retention_policy = ""
## Write timeout (for the InfluxDB client), formatted as a string.
## If not provided, will default to 5s. 0s means no timeout (not recommended).
timeout = "5s"
## Write consistency (clusters only), can be: "any", "one", "quorum", "all"
# write_consistency = "any"
## Timeout for HTTP messages.
# timeout = "5s"
## HTTP Basic Auth
# username = "telegraf"
# password = "metricsmetricsmetricsmetrics"
## Set the user agent for HTTP POSTs (can be useful for log differentiation)
## HTTP User-Agent
# user_agent = "telegraf"
## Set UDP payload size, defaults to InfluxDB UDP Client default (512 bytes)
## UDP payload size is the maximum packet size to send.
# udp_payload = 512
## Optional SSL Config
@ -85,170 +102,181 @@ var sampleConfig = `
## Use SSL but skip chain & host verification
# insecure_skip_verify = false
## HTTP Proxy Config
## HTTP Proxy override, if unset values the standard proxy environment
## variables are consulted to determine which proxy, if any, should be used.
# http_proxy = "http://corporate.proxy:3128"
## Optional HTTP headers
## Additional HTTP headers
# http_headers = {"X-Special-Header" = "Special-Value"}
## Compress each HTTP request payload using GZIP.
# content_encoding = "gzip"
## HTTP Content-Encoding for write request body, can be set to "gzip" to
## compress body or "identity" to apply no encoding.
# content_encoding = "identity"
`
// Connect initiates the primary connection to the range of provided URLs
func (i *InfluxDB) Connect() error {
var urls []string
urls = append(urls, i.URLs...)
ctx := context.Background()
// Backward-compatibility with single Influx URL config files
// This could eventually be removed in favor of specifying the urls as a list
urls := make([]string, 0, len(i.URLs))
urls = append(urls, i.URLs...)
if i.URL != "" {
urls = append(urls, i.URL)
}
tlsConfig, err := internal.GetTLSConfig(
i.SSLCert, i.SSLKey, i.SSLCA, i.InsecureSkipVerify)
if err != nil {
return err
if len(urls) == 0 {
urls = append(urls, defaultURL)
}
i.serializer = influx.NewSerializer()
for _, u := range urls {
switch {
case strings.HasPrefix(u, "udp"):
config := client.UDPConfig{
URL: u,
PayloadSize: i.UDPPayload,
}
c, err := client.NewUDP(config)
u, err := url.Parse(u)
if err != nil {
return fmt.Errorf("error parsing url [%s]: %v", u, err)
}
var proxy *url.URL
if len(i.HTTPProxy) > 0 {
proxy, err = url.Parse(i.HTTPProxy)
if err != nil {
return fmt.Errorf("Error creating UDP Client [%s]: %s", u, err)
return fmt.Errorf("error parsing proxy_url [%s]: %v", proxy, err)
}
}
switch u.Scheme {
case "udp", "udp4", "udp6":
c, err := i.udpClient(u)
if err != nil {
return err
}
i.clients = append(i.clients, c)
case "http", "https":
c, err := i.httpClient(ctx, u, proxy)
if err != nil {
return err
}
i.clients = append(i.clients, c)
default:
// If URL doesn't start with "udp", assume HTTP client
config := client.HTTPConfig{
URL: u,
Timeout: i.Timeout.Duration,
TLSConfig: tlsConfig,
UserAgent: i.UserAgent,
Username: i.Username,
Password: i.Password,
HTTPProxy: i.HTTPProxy,
HTTPHeaders: client.HTTPHeaders{},
ContentEncoding: i.ContentEncoding,
}
for header, value := range i.HTTPHeaders {
config.HTTPHeaders[header] = value
}
wp := client.WriteParams{
Database: i.Database,
RetentionPolicy: i.RetentionPolicy,
Consistency: i.WriteConsistency,
}
c, err := client.NewHTTP(config, wp)
if err != nil {
return fmt.Errorf("Error creating HTTP Client [%s]: %s", u, err)
}
i.clients = append(i.clients, c)
err = c.Query(fmt.Sprintf(`CREATE DATABASE "%s"`, qiReplacer.Replace(i.Database)))
if err != nil {
if !strings.Contains(err.Error(), "Status Code [403]") {
log.Println("I! Database creation failed: " + err.Error())
}
continue
}
return fmt.Errorf("unsupported scheme [%s]: %q", u, u.Scheme)
}
}
rand.Seed(time.Now().UnixNano())
return nil
}
// Close will terminate the session to the backend, returning error if an issue arises
func (i *InfluxDB) Close() error {
return nil
}
// SampleConfig returns the formatted sample configuration for the plugin
func (i *InfluxDB) Description() string {
return "Configuration for sending metrics to InfluxDB"
}
func (i *InfluxDB) SampleConfig() string {
return sampleConfig
}
// Description returns the human-readable function definition of the plugin
func (i *InfluxDB) Description() string {
return "Configuration for influxdb server to send metrics to"
}
// Write will choose a random server in the cluster to write to until a successful write
// occurs, logging each unsuccessful. If all servers fail, return error.
// Write sends metrics to one of the configured servers, logging each
// unsuccessful. If all servers fail, return an error.
func (i *InfluxDB) Write(metrics []telegraf.Metric) error {
r := metric.NewReader(metrics)
// This will get set to nil if a successful write occurs
err := fmt.Errorf("Could not write to any InfluxDB server in cluster")
ctx := context.Background()
var err error
p := rand.Perm(len(i.clients))
for _, n := range p {
if e := i.clients[n].WriteStream(r); e != nil {
// If the database was not found, try to recreate it:
if strings.Contains(e.Error(), "database not found") {
errc := i.clients[n].Query(fmt.Sprintf(`CREATE DATABASE "%s"`, qiReplacer.Replace(i.Database)))
if errc != nil {
log.Printf("E! Error: Database %s not found and failed to recreate\n",
i.Database)
client := i.clients[n]
err = client.Write(ctx, metrics)
if err == nil {
return nil
}
switch apiError := err.(type) {
case APIError:
if apiError.Type == DatabaseNotFound {
err := client.CreateDatabase(ctx)
if err != nil {
log.Printf("E! [outputs.influxdb] when writing to [%s]: database %q not found and failed to recreate",
client.URL(), client.Database())
}
}
if strings.Contains(e.Error(), "field type conflict") {
log.Printf("E! Field type conflict, dropping conflicted points: %s", e)
// setting err to nil, otherwise we will keep retrying and points
// w/ conflicting types will get stuck in the buffer forever.
err = nil
break
}
if strings.Contains(e.Error(), "points beyond retention policy") {
log.Printf("W! Points beyond retention policy: %s", e)
// This error is indicates the point is older than the
// retention policy permits, and is probably not a cause for
// concern. Retrying will not help unless the retention
// policy is modified.
err = nil
break
}
if strings.Contains(e.Error(), "unable to parse") {
log.Printf("E! Parse error; dropping points: %s", e)
// This error indicates a bug in Telegraf or InfluxDB parsing
// of line protocol. Retries will not be successful.
err = nil
break
}
if strings.Contains(e.Error(), "hinted handoff queue not empty") {
// This is an informational message
err = nil
break
}
// Log write failure
log.Printf("E! InfluxDB Output Error: %s", e)
} else {
err = nil
break
}
log.Printf("E! [outputs.influxdb]: when writing to [%s]: %v", client.URL(), err)
}
return err
return errors.New("could not write any address")
}
func newInflux() *InfluxDB {
return &InfluxDB{
Timeout: internal.Duration{Duration: time.Second * 5},
func (i *InfluxDB) udpClient(url *url.URL) (Client, error) {
config := &UDPConfig{
URL: url,
MaxPayloadSize: i.UDPPayload,
Serializer: i.serializer,
}
c, err := i.CreateUDPClientF(config)
if err != nil {
return nil, fmt.Errorf("error creating UDP client [%s]: %v", url, err)
}
return c, nil
}
func (i *InfluxDB) httpClient(ctx context.Context, url *url.URL, proxy *url.URL) (Client, error) {
tlsConfig, err := internal.GetTLSConfig(
i.SSLCert, i.SSLKey, i.SSLCA, i.InsecureSkipVerify)
if err != nil {
return nil, err
}
config := &HTTPConfig{
URL: url,
Timeout: i.Timeout.Duration,
TLSConfig: tlsConfig,
UserAgent: i.UserAgent,
Username: i.Username,
Password: i.Password,
Proxy: proxy,
ContentEncoding: i.ContentEncoding,
Headers: i.HTTPHeaders,
Database: i.Database,
RetentionPolicy: i.RetentionPolicy,
Consistency: i.WriteConsistency,
Serializer: i.serializer,
}
c, err := i.CreateHTTPClientF(config)
if err != nil {
return nil, fmt.Errorf("error creating HTTP client [%s]: %v", url, err)
}
err = c.CreateDatabase(ctx)
if err != nil {
if err, ok := err.(APIError); ok {
if err.StatusCode == 503 {
return c, nil
}
}
log.Printf("W! [outputs.influxdb] when writing to [%s]: database %q creation failed: %v",
c.URL(), c.Database(), err)
}
return c, nil
}
func init() {
outputs.Add("influxdb", func() telegraf.Output { return newInflux() })
outputs.Add("influxdb", func() telegraf.Output {
return &InfluxDB{
Timeout: internal.Duration{Duration: time.Second * 5},
CreateHTTPClientF: func(config *HTTPConfig) (Client, error) {
return NewHTTPClient(config)
},
CreateUDPClientF: func(config *UDPConfig) (Client, error) {
return NewUDPClient(config)
},
}
})
}

406
plugins/outputs/influxdb/influxdb_test.go
View File

@ -1,313 +1,135 @@
package influxdb
package influxdb_test
import (
"fmt"
"io"
"net/http"
"net/http/httptest"
"context"
"testing"
"time"
"github.com/influxdata/telegraf/plugins/outputs/influxdb/client"
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/assert"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/internal"
"github.com/influxdata/telegraf/plugins/outputs/influxdb"
"github.com/stretchr/testify/require"
)
func TestIdentQuoting(t *testing.T) {
var testCases = []struct {
database string
expected string
}{
{"x-y", `CREATE DATABASE "x-y"`},
{`x"y`, `CREATE DATABASE "x\"y"`},
{"x\ny", `CREATE DATABASE "x\ny"`},
{`x\y`, `CREATE DATABASE "x\\y"`},
}
for _, tc := range testCases {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
q := r.Form.Get("q")
assert.Equal(t, tc.expected, q)
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}]}`)
}))
defer ts.Close()
i := InfluxDB{
URLs: []string{ts.URL},
Database: tc.database,
}
err := i.Connect()
require.NoError(t, err)
require.NoError(t, i.Close())
}
}
func TestUDPInflux(t *testing.T) {
i := InfluxDB{
URLs: []string{"udp://localhost:8089"},
}
err := i.Connect()
require.NoError(t, err)
err = i.Write(testutil.MockMetrics())
require.NoError(t, err)
require.NoError(t, i.Close())
}
func TestHTTPInflux(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
// test that database is set properly
if r.FormValue("db") != "test" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
}
// test that user agent is set properly
if r.UserAgent() != "telegraf" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
}
w.WriteHeader(http.StatusNoContent)
w.Header().Set("Content-Type", "application/json")
case "/query":
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}]}`)
}
}))
defer ts.Close()
i := newInflux()
i.URLs = []string{ts.URL}
i.Database = "test"
i.UserAgent = "telegraf"
err := i.Connect()
require.NoError(t, err)
err = i.Write(testutil.MockMetrics())
require.NoError(t, err)
require.NoError(t, i.Close())
}
func TestUDPConnectError(t *testing.T) {
i := InfluxDB{
URLs: []string{"udp://foobar:8089"},
}
err := i.Connect()
require.Error(t, err)
i = InfluxDB{
URLs: []string{"udp://localhost:9999999"},
}
err = i.Connect()
require.Error(t, err)
}
func TestHTTPConnectError_InvalidURL(t *testing.T) {
i := InfluxDB{
URLs: []string{"http://foobar:8089"},
}
err := i.Connect()
require.Error(t, err)
i = InfluxDB{
URLs: []string{"http://localhost:9999999"},
}
err = i.Connect()
require.Error(t, err)
}
func TestHTTPConnectError_DatabaseCreateFail(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/query":
w.WriteHeader(http.StatusNotFound)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"test error"}`)
}
}))
defer ts.Close()
i := InfluxDB{
URLs: []string{ts.URL},
Database: "test",
}
// database creation errors do not return an error from Connect
// they are only logged.
err := i.Connect()
require.NoError(t, err)
require.NoError(t, i.Close())
}
func TestHTTPError_DatabaseNotFound(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
w.WriteHeader(http.StatusNotFound)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"database not found"}`)
case "/query":
w.WriteHeader(http.StatusNotFound)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"database not found"}`)
}
}))
defer ts.Close()
i := InfluxDB{
URLs: []string{ts.URL},
Database: "test",
}
err := i.Connect()
require.NoError(t, err)
err = i.Write(testutil.MockMetrics())
require.Error(t, err)
require.NoError(t, i.Close())
}
func TestHTTPError_WriteErrors(t *testing.T) {
var testCases = []struct {
name string
status int
contentType string
body string
err error
}{
{
// HTTP/1.1 400 Bad Request
// Content-Type: application/json
// X-Influxdb-Version: 1.3.3
//
// {
// "error": "partial write: points beyond retention policy dropped=1"
// }
name: "beyond retention policy is not an error",
status: http.StatusBadRequest,
contentType: "application/json",
body: `{"error":"partial write: points beyond retention policy dropped=1"}`,
err: nil,
},
{
// HTTP/1.1 400 Bad Request
// Content-Type: application/json
// X-Influxdb-Version: 1.3.3
//
// {
// "error": "unable to parse 'foo bar=': missing field value"
// }
name: "unable to parse is not an error",
status: http.StatusBadRequest,
contentType: "application/json",
body: `{"error":"unable to parse 'foo bar=': missing field value"}`,
err: nil,
},
{
// HTTP/1.1 400 Bad Request
// Content-Type: application/json
// X-Influxdb-Version: 1.3.3
//
// {
// "error": "partial write: field type conflict: input field \"bar\" on measurement \"foo\" is type float, already exists as type integer dropped=1"
// }
name: "field type conflict is not an error",
status: http.StatusBadRequest,
contentType: "application/json",
body: `{"error": "partial write: field type conflict: input field \"bar\" on measurement \"foo\" is type float, already exists as type integer dropped=1"}`,
err: nil,
},
{
// HTTP/1.1 500 Internal Server Error
// Content-Type: application/json
// X-Influxdb-Version: 1.3.3-c1.3.3
//
// {
// "error": "write failed: hinted handoff queue not empty"
// }
name: "hinted handoff queue not empty is not an error",
status: http.StatusInternalServerError,
contentType: "application/json",
body: `{"error":"write failed: hinted handoff queue not empty"}`,
err: nil,
},
{
// HTTP/1.1 500 Internal Server Error
// Content-Type: application/json
// X-Influxdb-Version: 1.3.3-c1.3.3
//
// {
// "error": "partial write"
// }
name: "plain partial write is an error",
status: http.StatusInternalServerError,
contentType: "application/json",
body: `{"error":"partial write"}`,
err: fmt.Errorf("Could not write to any InfluxDB server in cluster"),
},
}
for _, tt := range testCases {
t.Run(tt.name, func(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
rw.WriteHeader(tt.status)
rw.Header().Set("Content-Type", tt.contentType)
fmt.Fprintln(rw, tt.body)
}))
defer ts.Close()
influx := InfluxDB{
URLs: []string{ts.URL},
Database: "test",
}
err := influx.Connect()
require.NoError(t, err)
err = influx.Write(testutil.MockMetrics())
require.Equal(t, tt.err, err)
require.NoError(t, influx.Close())
})
}
}
type MockClient struct {
writeStreamCalled int
contentLength int
URLF func() string
DatabaseF func() string
WriteF func(context.Context, []telegraf.Metric) error
CreateDatabaseF func(ctx context.Context) error
}
func (m *MockClient) Query(command string) error {
panic("not implemented")
func (c *MockClient) URL() string {
return c.URLF()
}
func (m *MockClient) Write(b []byte) (int, error) {
panic("not implemented")
func (c *MockClient) Database() string {
return c.DatabaseF()
}
func (m *MockClient) WriteWithParams(b []byte, params client.WriteParams) (int, error) {
panic("not implemented")
func (c *MockClient) Write(ctx context.Context, metrics []telegraf.Metric) error {
return c.WriteF(ctx, metrics)
}
func (m *MockClient) WriteStream(b io.Reader, contentLength int) (int, error) {
m.writeStreamCalled++
m.contentLength = contentLength
return 0, nil
func (c *MockClient) CreateDatabase(ctx context.Context) error {
return c.CreateDatabaseF(ctx)
}
func (m *MockClient) WriteStreamWithParams(b io.Reader, contentLength int, params client.WriteParams) (int, error) {
panic("not implemented")
func TestDeprecatedURLSupport(t *testing.T) {
var actual *influxdb.UDPConfig
output := influxdb.InfluxDB{
URL: "udp://localhost:8086",
CreateUDPClientF: func(config *influxdb.UDPConfig) (influxdb.Client, error) {
actual = config
return &MockClient{}, nil
},
}
err := output.Connect()
require.NoError(t, err)
require.Equal(t, "udp://localhost:8086", actual.URL.String())
}
func (m *MockClient) Close() error {
panic("not implemented")
func TestDefaultURL(t *testing.T) {
var actual *influxdb.HTTPConfig
output := influxdb.InfluxDB{
CreateHTTPClientF: func(config *influxdb.HTTPConfig) (influxdb.Client, error) {
actual = config
return &MockClient{
CreateDatabaseF: func(ctx context.Context) error {
return nil
},
}, nil
},
}
err := output.Connect()
require.NoError(t, err)
require.Equal(t, "http://localhost:8086", actual.URL.String())
}
func TestConnectUDPConfig(t *testing.T) {
var actual *influxdb.UDPConfig
output := influxdb.InfluxDB{
URLs: []string{"udp://localhost:8086"},
UDPPayload: 42,
CreateUDPClientF: func(config *influxdb.UDPConfig) (influxdb.Client, error) {
actual = config
return &MockClient{}, nil
},
}
err := output.Connect()
require.NoError(t, err)
require.Equal(t, "udp://localhost:8086", actual.URL.String())
require.Equal(t, 42, actual.MaxPayloadSize)
require.NotNil(t, actual.Serializer)
}
func TestConnectHTTPConfig(t *testing.T) {
var actual *influxdb.HTTPConfig
output := influxdb.InfluxDB{
URLs: []string{"http://localhost:8089"},
Database: "telegraf",
RetentionPolicy: "default",
WriteConsistency: "any",
Timeout: internal.Duration{Duration: 5 * time.Second},
Username: "guy",
Password: "smiley",
UserAgent: "telegraf",
HTTPProxy: "http://localhost:8089",
HTTPHeaders: map[string]string{
"x": "y",
},
ContentEncoding: "gzip",
InsecureSkipVerify: true,
CreateHTTPClientF: func(config *influxdb.HTTPConfig) (influxdb.Client, error) {
actual = config
return &MockClient{
CreateDatabaseF: func(ctx context.Context) error {
return nil
},
}, nil
},
}
err := output.Connect()
require.NoError(t, err)
require.Equal(t, output.URLs[0], actual.URL.String())
require.Equal(t, output.UserAgent, actual.UserAgent)
require.Equal(t, output.Timeout.Duration, actual.Timeout)
require.Equal(t, output.Username, actual.Username)
require.Equal(t, output.Password, actual.Password)
require.Equal(t, output.HTTPProxy, actual.Proxy.String())
require.Equal(t, output.HTTPHeaders, actual.Headers)
require.Equal(t, output.ContentEncoding, actual.ContentEncoding)
require.Equal(t, output.Database, actual.Database)
require.Equal(t, output.RetentionPolicy, actual.RetentionPolicy)
require.Equal(t, output.WriteConsistency, actual.Consistency)
require.NotNil(t, actual.TLSConfig)
require.NotNil(t, actual.Serializer)
require.Equal(t, output.Database, actual.Database)
}

116
plugins/outputs/influxdb/udp.go Normal file
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@ -0,0 +1,116 @@
package influxdb
import (
"context"
"fmt"
"net"
"net/url"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/serializers"
"github.com/influxdata/telegraf/plugins/serializers/influx"
)
const (
// DefaultMaxPayloadSize is the maximum length of the UDP data payload
DefaultMaxPayloadSize = 512
)
type Dialer interface {
DialContext(ctx context.Context, network, address string) (Conn, error)
}
type Conn interface {
Write(b []byte) (int, error)
Close() error
}
type UDPConfig struct {
MaxPayloadSize int
URL *url.URL
Serializer serializers.Serializer
Dialer Dialer
}
func NewUDPClient(config *UDPConfig) (*udpClient, error) {
if config.URL == nil {
return nil, ErrMissingURL
}
size := config.MaxPayloadSize
if size == 0 {
size = DefaultMaxPayloadSize
}
serializer := config.Serializer
if serializer == nil {
s := influx.NewSerializer()
s.SetMaxLineBytes(config.MaxPayloadSize)
serializer = s
}
dialer := config.Dialer
if dialer == nil {
dialer = &netDialer{net.Dialer{}}
}
client := &udpClient{
url: config.URL,
serializer: serializer,
dialer: dialer,
}
return client, nil
}
type udpClient struct {
conn Conn
dialer Dialer
serializer serializers.Serializer
url *url.URL
}
func (c *udpClient) URL() string {
return c.url.String()
}
func (c *udpClient) Database() string {
return ""
}
func (c *udpClient) Write(ctx context.Context, metrics []telegraf.Metric) error {
if c.conn == nil {
conn, err := c.dialer.DialContext(ctx, c.url.Scheme, c.url.Host)
if err != nil {
return fmt.Errorf("error dialing address [%s]: %s", c.url, err)
}
c.conn = conn
}
for _, metric := range metrics {
octets, err := c.serializer.Serialize(metric)
if err != nil {
return fmt.Errorf("could not serialize metric: %v", err)
}
_, err = c.conn.Write(octets)
if err != nil {
c.conn.Close()
c.conn = nil
return err
}
}
return nil
}
func (c *udpClient) CreateDatabase(ctx context.Context) error {
return nil
}
type netDialer struct {
net.Dialer
}
func (d *netDialer) DialContext(ctx context.Context, network, address string) (Conn, error) {
return d.Dialer.DialContext(ctx, network, address)
}

241
plugins/outputs/influxdb/udp_test.go Normal file
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@ -0,0 +1,241 @@
package influxdb_test
import (
"bytes"
"context"
"fmt"
"net"
"net/url"
"sync"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
"github.com/influxdata/telegraf/plugins/outputs/influxdb"
"github.com/influxdata/telegraf/plugins/serializers/influx"
"github.com/stretchr/testify/require"
)
var (
metricString = "cpu value=42 0\n"
)
func getMetric() telegraf.Metric {
metric, err := metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
)
if err != nil {
panic(err)
}
return metric
}
func getURL() *url.URL {
u, err := url.Parse("udp://localhost:0")
if err != nil {
panic(err)
}
return u
}
type MockConn struct {
WriteF func(b []byte) (n int, err error)
CloseF func() error
}
func (c *MockConn) Write(b []byte) (n int, err error) {
return c.WriteF(b)
}
func (c *MockConn) Close() error {
return c.CloseF()
}
type MockDialer struct {
DialContextF func(network, address string) (influxdb.Conn, error)
}
func (d *MockDialer) DialContext(ctx context.Context, network string, address string) (influxdb.Conn, error) {
return d.DialContextF(network, address)
}
type MockSerializer struct {
SerializeF func(metric telegraf.Metric) ([]byte, error)
}
func (s *MockSerializer) Serialize(metric telegraf.Metric) ([]byte, error) {
return s.SerializeF(metric)
}
func TestUDP_NewUDPClientNoURL(t *testing.T) {
config := &influxdb.UDPConfig{}
_, err := influxdb.NewUDPClient(config)
require.Equal(t, err, influxdb.ErrMissingURL)
}
func TestUDP_URL(t *testing.T) {
u := getURL()
config := &influxdb.UDPConfig{
URL: u,
}
client, err := influxdb.NewUDPClient(config)
require.NoError(t, err)
require.Equal(t, u.String(), client.URL())
}
func TestUDP_Simple(t *testing.T) {
var buffer bytes.Buffer
config := &influxdb.UDPConfig{
URL: getURL(),
Dialer: &MockDialer{
DialContextF: func(network, address string) (influxdb.Conn, error) {
conn := &MockConn{
WriteF: func(b []byte) (n int, err error) {
buffer.Write(b)
return 0, nil
},
}
return conn, nil
},
},
}
client, err := influxdb.NewUDPClient(config)
require.NoError(t, err)
ctx := context.Background()
err = client.Write(ctx, []telegraf.Metric{
getMetric(),
getMetric(),
})
require.NoError(t, err)
require.Equal(t, metricString+metricString, buffer.String())
}
func TestUDP_DialError(t *testing.T) {
u, err := url.Parse("invalid://127.0.0.1:9999")
require.NoError(t, err)
config := &influxdb.UDPConfig{
URL: u,
Dialer: &MockDialer{
DialContextF: func(network, address string) (influxdb.Conn, error) {
return nil, fmt.Errorf(
`unsupported scheme [invalid://localhost:9999]: "invalid"`)
},
},
}
client, err := influxdb.NewUDPClient(config)
require.NoError(t, err)
ctx := context.Background()
err = client.Write(ctx, []telegraf.Metric{getMetric()})
require.Error(t, err)
}
func TestUDP_WriteError(t *testing.T) {
closed := false
config := &influxdb.UDPConfig{
URL: getURL(),
Dialer: &MockDialer{
DialContextF: func(network, address string) (influxdb.Conn, error) {
conn := &MockConn{
WriteF: func(b []byte) (n int, err error) {
return 0, fmt.Errorf(
"write udp 127.0.0.1:52190->127.0.0.1:9999: write: connection refused")
},
CloseF: func() error {
closed = true
return nil
},
}
return conn, nil
},
},
}
client, err := influxdb.NewUDPClient(config)
require.NoError(t, err)
ctx := context.Background()
err = client.Write(ctx, []telegraf.Metric{getMetric()})
require.Error(t, err)
require.True(t, closed)
}
func TestUDP_SerializeError(t *testing.T) {
config := &influxdb.UDPConfig{
URL: getURL(),
Dialer: &MockDialer{
DialContextF: func(network, address string) (influxdb.Conn, error) {
conn := &MockConn{}
return conn, nil
},
},
Serializer: &MockSerializer{
SerializeF: func(metric telegraf.Metric) ([]byte, error) {
return nil, influx.ErrNeedMoreSpace
},
},
}
client, err := influxdb.NewUDPClient(config)
require.NoError(t, err)
ctx := context.Background()
err = client.Write(ctx, []telegraf.Metric{getMetric()})
require.Error(t, err)
require.Contains(t, err.Error(), influx.ErrNeedMoreSpace.Error())
}
func TestUDP_WriteWithRealConn(t *testing.T) {
conn, err := net.ListenPacket("udp", ":0")
require.NoError(t, err)
metrics := []telegraf.Metric{
getMetric(),
getMetric(),
}
buf := make([]byte, 200)
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
var total int
for _, _ = range metrics {
n, _, err := conn.ReadFrom(buf[total:])
if err != nil {
break
}
total += n
}
buf = buf[:total]
}()
addr := conn.LocalAddr()
u, err := url.Parse(fmt.Sprintf("%s://%s", addr.Network(), addr))
require.NoError(t, err)
config := &influxdb.UDPConfig{
URL: u,
}
client, err := influxdb.NewUDPClient(config)
require.NoError(t, err)
ctx := context.Background()
err = client.Write(ctx, metrics)
require.NoError(t, err)
wg.Wait()
require.Equal(t, metricString+metricString, string(buf))
}

17
plugins/outputs/instrumental/instrumental.go
View File

@ -11,7 +11,6 @@ import (
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/internal"
"github.com/influxdata/telegraf/metric"
"github.com/influxdata/telegraf/plugins/outputs"
"github.com/influxdata/telegraf/plugins/serializers"
"github.com/influxdata/telegraf/plugins/serializers/graphite"
@ -93,8 +92,6 @@ func (i *Instrumental) Write(metrics []telegraf.Metric) error {
var points []string
var metricType string
var toSerialize telegraf.Metric
var newTags map[string]string
for _, m := range metrics {
// Pull the metric_type out of the metric's tags. We don't want the type
@ -108,18 +105,10 @@ func (i *Instrumental) Write(metrics []telegraf.Metric) error {
//
// increment some_prefix.host.tag1.tag2.tag3.counter.field value timestamp
//
newTags = m.Tags()
metricType = newTags["metric_type"]
delete(newTags, "metric_type")
metricType = m.Tags()["metric_type"]
m.RemoveTag("metric_type")
toSerialize, _ = metric.New(
m.Name(),
newTags,
m.Fields(),
m.Time(),
)
buf, err := s.Serialize(toSerialize)
buf, err := s.Serialize(m)
if err != nil {
log.Printf("E! Error serializing a metric to Instrumental: %s", err)
}

4
plugins/outputs/librato/librato.go
View File

@ -187,9 +187,7 @@ func (l *Librato) buildGauges(m telegraf.Metric) ([]*Gauge, error) {
gauges := []*Gauge{}
if m.Time().Unix() == 0 {
return gauges, fmt.Errorf(
"Measure time must not be zero\n <%s> \n",
m.String())
return gauges, fmt.Errorf("time was zero %s", m.Name())
}
metricSource := graphite.InsertField(
graphite.SerializeBucketName("", m.Tags(), l.Template, ""),

3
plugins/outputs/mqtt/mqtt.go
View File

@ -138,8 +138,7 @@ func (m *MQTT) Write(metrics []telegraf.Metric) error {
buf, err := m.serializer.Serialize(metric)
if err != nil {
return fmt.Errorf("MQTT Could not serialize metric: %s",
metric.String())
return err
}
err = m.publish(topic, buf)

4
plugins/outputs/opentsdb/opentsdb.go
View File

@ -125,7 +125,7 @@ func (o *OpenTSDB) WriteHttp(metrics []telegraf.Metric, u *url.URL) error {
}
for _, m := range metrics {
now := m.UnixNano() / 1000000000
now := m.Time().UnixNano() / 1000000000
tags := cleanTags(m.Tags())
for fieldName, value := range m.Fields() {
@ -170,7 +170,7 @@ func (o *OpenTSDB) WriteTelnet(metrics []telegraf.Metric, u *url.URL) error {
defer connection.Close()
for _, m := range metrics {
now := m.UnixNano() / 1000000000
now := m.Time().UnixNano() / 1000000000
tags := ToLineFormat(cleanTags(m.Tags()))
for fieldName, value := range m.Fields() {

5
plugins/outputs/wavefront/wavefront.go
View File

@ -9,9 +9,10 @@ import (
"strconv"
"strings"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/outputs"
"time"
)
type Wavefront struct {
@ -159,7 +160,7 @@ func buildMetrics(m telegraf.Metric, w *Wavefront) []*MetricPoint {
metric := &MetricPoint{
Metric: name,
Timestamp: m.UnixNano() / 1000000000,
Timestamp: m.Time().Unix(),
}
metricValue, buildError := buildValue(value, metric.Metric, w)

11
plugins/parsers/dropwizard/parser.go
View File

@ -10,7 +10,7 @@ import (
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/internal/templating"
"github.com/influxdata/telegraf/metric"
"github.com/influxdata/telegraf/plugins/parsers/influx"
"github.com/tidwall/gjson"
)
@ -195,7 +195,7 @@ func (p *Parser) unmarshalMetrics(buf []byte) (map[string]interface{}, error) {
return jsonOut, nil
}
func (p *Parser) readDWMetrics(metricType string, dwms interface{}, metrics []telegraf.Metric, time time.Time) []telegraf.Metric {
func (p *Parser) readDWMetrics(metricType string, dwms interface{}, metrics []telegraf.Metric, tm time.Time) []telegraf.Metric {
switch dwmsTyped := dwms.(type) {
case map[string]interface{}:
@ -240,10 +240,15 @@ func (p *Parser) readDWMetrics(metricType string, dwms interface{}, metrics []te
metricsBuffer.WriteString(strings.Join(fields, ","))
metricsBuffer.WriteString("\n")
}
newMetrics, err := metric.ParseWithDefaultTime(metricsBuffer.Bytes(), time)
handler := influx.NewMetricHandler()
handler.SetTimeFunc(func() time.Time { return tm })
parser := influx.NewParser(handler)
newMetrics, err := parser.Parse(metricsBuffer.Bytes())
if err != nil {
log.Printf("W! failed to create metric of type '%s': %s\n", metricType, err)
}
return append(metrics, newMetrics...)
default:
return metrics

1
plugins/parsers/graphite/parser.go
View File

@ -89,7 +89,6 @@ func (p *GraphiteParser) Parse(buf []byte) ([]telegraf.Metric, error) {
if line == "" {
continue
}
metric, err := p.ParseLine(line)
if err == nil {
metrics = append(metrics, metric)

83
plugins/parsers/graphite/parser_test.go
View File

@ -10,6 +10,7 @@ import (
"github.com/influxdata/telegraf/metric"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func BenchmarkParse(b *testing.B) {
@ -379,7 +380,7 @@ func TestFilterMatchDefault(t *testing.T) {
m, err := p.ParseLine("miss.servers.localhost.cpu_load 11 1435077219")
assert.NoError(t, err)
assert.Equal(t, exp.String(), m.String())
assert.Equal(t, exp, m)
}
func TestFilterMatchMultipleMeasurement(t *testing.T) {
@ -397,7 +398,7 @@ func TestFilterMatchMultipleMeasurement(t *testing.T) {
m, err := p.ParseLine("servers.localhost.cpu.cpu_load.10 11 1435077219")
assert.NoError(t, err)
assert.Equal(t, exp.String(), m.String())
assert.Equal(t, exp, m)
}
func TestFilterMatchMultipleMeasurementSeparator(t *testing.T) {
@ -416,7 +417,7 @@ func TestFilterMatchMultipleMeasurementSeparator(t *testing.T) {
m, err := p.ParseLine("servers.localhost.cpu.cpu_load.10 11 1435077219")
assert.NoError(t, err)
assert.Equal(t, exp.String(), m.String())
assert.Equal(t, exp, m)
}
func TestFilterMatchSingle(t *testing.T) {
@ -433,7 +434,7 @@ func TestFilterMatchSingle(t *testing.T) {
m, err := p.ParseLine("servers.localhost.cpu_load 11 1435077219")
assert.NoError(t, err)
assert.Equal(t, exp.String(), m.String())
assert.Equal(t, exp, m)
}
func TestParseNoMatch(t *testing.T) {
@ -451,7 +452,7 @@ func TestParseNoMatch(t *testing.T) {
m, err := p.ParseLine("servers.localhost.memory.VmallocChunk 11 1435077219")
assert.NoError(t, err)
assert.Equal(t, exp.String(), m.String())
assert.Equal(t, exp, m)
}
func TestFilterMatchWildcard(t *testing.T) {
@ -469,7 +470,7 @@ func TestFilterMatchWildcard(t *testing.T) {
m, err := p.ParseLine("servers.localhost.cpu_load 11 1435077219")
assert.NoError(t, err)
assert.Equal(t, exp.String(), m.String())
assert.Equal(t, exp, m)
}
func TestFilterMatchExactBeforeWildcard(t *testing.T) {
@ -489,7 +490,7 @@ func TestFilterMatchExactBeforeWildcard(t *testing.T) {
m, err := p.ParseLine("servers.localhost.cpu_load 11 1435077219")
assert.NoError(t, err)
assert.Equal(t, exp.String(), m.String())
assert.Equal(t, exp, m)
}
func TestFilterMatchMostLongestFilter(t *testing.T) {
@ -508,8 +509,13 @@ func TestFilterMatchMostLongestFilter(t *testing.T) {
m, err := p.ParseLine("servers.localhost.cpu.cpu_load 11 1435077219")
assert.NoError(t, err)
assert.Contains(t, m.String(), ",host=localhost")
assert.Contains(t, m.String(), ",resource=cpu")
value, ok := m.GetTag("host")
require.True(t, ok)
require.Equal(t, "localhost", value)
value, ok = m.GetTag("resource")
require.True(t, ok)
require.Equal(t, "cpu", value)
}
func TestFilterMatchMultipleWildcards(t *testing.T) {
@ -533,7 +539,7 @@ func TestFilterMatchMultipleWildcards(t *testing.T) {
m, err := p.ParseLine("servers.server01.cpu_load 11 1435077219")
assert.NoError(t, err)
assert.Equal(t, exp.String(), m.String())
assert.Equal(t, exp, m)
}
func TestParseDefaultTags(t *testing.T) {
@ -549,9 +555,17 @@ func TestParseDefaultTags(t *testing.T) {
m, err := p.ParseLine("servers.localhost.cpu_load 11 1435077219")
assert.NoError(t, err)
assert.Contains(t, m.String(), ",host=localhost")
assert.Contains(t, m.String(), ",region=us-east")
assert.Contains(t, m.String(), ",zone=1c")
value, ok := m.GetTag("host")
require.True(t, ok)
require.Equal(t, "localhost", value)
value, ok = m.GetTag("region")
require.True(t, ok)
require.Equal(t, "us-east", value)
value, ok = m.GetTag("zone")
require.True(t, ok)
require.Equal(t, "1c", value)
}
func TestParseDefaultTemplateTags(t *testing.T) {
@ -566,9 +580,17 @@ func TestParseDefaultTemplateTags(t *testing.T) {
m, err := p.ParseLine("servers.localhost.cpu_load 11 1435077219")
assert.NoError(t, err)
assert.Contains(t, m.String(), ",host=localhost")
assert.Contains(t, m.String(), ",region=us-east")
assert.Contains(t, m.String(), ",zone=1c")
value, ok := m.GetTag("host")
require.True(t, ok)
require.Equal(t, "localhost", value)
value, ok = m.GetTag("region")
require.True(t, ok)
require.Equal(t, "us-east", value)
value, ok = m.GetTag("zone")
require.True(t, ok)
require.Equal(t, "1c", value)
}
func TestParseDefaultTemplateTagsOverridGlobal(t *testing.T) {
@ -581,11 +603,20 @@ func TestParseDefaultTemplateTagsOverridGlobal(t *testing.T) {
}
m, err := p.ParseLine("servers.localhost.cpu_load 11 1435077219")
_ = m
assert.NoError(t, err)
assert.Contains(t, m.String(), ",host=localhost")
assert.Contains(t, m.String(), ",region=us-east")
assert.Contains(t, m.String(), ",zone=1c")
value, ok := m.GetTag("host")
require.True(t, ok)
require.Equal(t, "localhost", value)
value, ok = m.GetTag("region")
require.True(t, ok)
require.Equal(t, "us-east", value)
value, ok = m.GetTag("zone")
require.True(t, ok)
require.Equal(t, "1c", value)
}
func TestParseTemplateWhitespace(t *testing.T) {
@ -602,9 +633,17 @@ func TestParseTemplateWhitespace(t *testing.T) {
m, err := p.ParseLine("servers.localhost.cpu_load 11 1435077219")
assert.NoError(t, err)
assert.Contains(t, m.String(), ",host=localhost")
assert.Contains(t, m.String(), ",region=us-east")
assert.Contains(t, m.String(), ",zone=1c")
value, ok := m.GetTag("host")
require.True(t, ok)
require.Equal(t, "localhost", value)
value, ok = m.GetTag("region")
require.True(t, ok)
require.Equal(t, "us-east", value)
value, ok = m.GetTag("zone")
require.True(t, ok)
require.Equal(t, "1c", value)
}
// Test basic functionality of ApplyTemplate

500
plugins/parsers/influx/500.metrics
View File

@ -1,500 +0,0 @@
ctr,host=tars,some=tag-0 n=3i 1476437629342569532
ctr,host=tars,some=tag-1 n=3i 1476437629342569532
ctr,host=tars,some=tag-2 n=3i 1476437629342569532
ctr,host=tars,some=tag-3 n=3i 1476437629342569532
ctr,host=tars,some=tag-4 n=3i 1476437629342569532
ctr,host=tars,some=tag-5 n=3i 1476437629342569532
ctr,host=tars,some=tag-6 n=3i 1476437629342569532
ctr,host=tars,some=tag-7 n=3i 1476437629342569532
ctr,host=tars,some=tag-8 n=3i 1476437629342569532
ctr,host=tars,some=tag-9 n=3i 1476437629342569532
ctr,host=tars,some=tag-10 n=3i 1476437629342569532
ctr,host=tars,some=tag-11 n=3i 1476437629342569532
ctr,host=tars,some=tag-12 n=3i 1476437629342569532
ctr,host=tars,some=tag-13 n=3i 1476437629342569532
ctr,host=tars,some=tag-14 n=3i 1476437629342569532
ctr,host=tars,some=tag-15 n=3i 1476437629342569532
ctr,host=tars,some=tag-16 n=3i 1476437629342569532
ctr,host=tars,some=tag-17 n=3i 1476437629342569532
ctr,host=tars,some=tag-18 n=3i 1476437629342569532
ctr,host=tars,some=tag-19 n=3i 1476437629342569532
ctr,host=tars,some=tag-20 n=3i 1476437629342569532
ctr,host=tars,some=tag-21 n=3i 1476437629342569532
ctr,host=tars,some=tag-22 n=3i 1476437629342569532
ctr,host=tars,some=tag-23 n=3i 1476437629342569532
ctr,host=tars,some=tag-24 n=3i 1476437629342569532
ctr,host=tars,some=tag-25 n=3i 1476437629342569532
ctr,host=tars,some=tag-26 n=3i 1476437629342569532
ctr,host=tars,some=tag-27 n=3i 1476437629342569532
ctr,host=tars,some=tag-28 n=3i 1476437629342569532
ctr,host=tars,some=tag-29 n=3i 1476437629342569532
ctr,host=tars,some=tag-30 n=3i 1476437629342569532
ctr,host=tars,some=tag-31 n=2i 1476437629342569532
ctr,host=tars,some=tag-32 n=2i 1476437629342569532
ctr,host=tars,some=tag-33 n=2i 1476437629342569532
ctr,host=tars,some=tag-34 n=2i 1476437629342569532
ctr,host=tars,some=tag-35 n=2i 1476437629342569532
ctr,host=tars,some=tag-36 n=2i 1476437629342569532
ctr,host=tars,some=tag-37 n=2i 1476437629342569532
ctr,host=tars,some=tag-38 n=2i 1476437629342569532
ctr,host=tars,some=tag-39 n=2i 1476437629342569532
ctr,host=tars,some=tag-40 n=2i 1476437629342569532
ctr,host=tars,some=tag-41 n=2i 1476437629342569532
ctr,host=tars,some=tag-42 n=2i 1476437629342569532
ctr,host=tars,some=tag-43 n=2i 1476437629342569532
ctr,host=tars,some=tag-44 n=2i 1476437629342569532
ctr,host=tars,some=tag-45 n=2i 1476437629342569532
ctr,host=tars,some=tag-46 n=2i 1476437629342569532
ctr,host=tars,some=tag-47 n=2i 1476437629342569532
ctr,host=tars,some=tag-48 n=2i 1476437629342569532
ctr,host=tars,some=tag-49 n=2i 1476437629342569532
ctr,host=tars,some=tag-50 n=2i 1476437629342569532
ctr,host=tars,some=tag-51 n=2i 1476437629342569532
ctr,host=tars,some=tag-52 n=2i 1476437629342569532
ctr,host=tars,some=tag-53 n=2i 1476437629342569532
ctr,host=tars,some=tag-54 n=2i 1476437629342569532
ctr,host=tars,some=tag-55 n=2i 1476437629342569532
ctr,host=tars,some=tag-56 n=2i 1476437629342569532
ctr,host=tars,some=tag-57 n=2i 1476437629342569532
ctr,host=tars,some=tag-58 n=2i 1476437629342569532
ctr,host=tars,some=tag-59 n=2i 1476437629342569532
ctr,host=tars,some=tag-60 n=2i 1476437629342569532
ctr,host=tars,some=tag-61 n=2i 1476437629342569532
ctr,host=tars,some=tag-62 n=2i 1476437629342569532
ctr,host=tars,some=tag-63 n=2i 1476437629342569532
ctr,host=tars,some=tag-64 n=2i 1476437629342569532
ctr,host=tars,some=tag-65 n=2i 1476437629342569532
ctr,host=tars,some=tag-66 n=2i 1476437629342569532
ctr,host=tars,some=tag-67 n=2i 1476437629342569532
ctr,host=tars,some=tag-68 n=2i 1476437629342569532
ctr,host=tars,some=tag-69 n=2i 1476437629342569532
ctr,host=tars,some=tag-70 n=2i 1476437629342569532
ctr,host=tars,some=tag-71 n=2i 1476437629342569532
ctr,host=tars,some=tag-72 n=2i 1476437629342569532
ctr,host=tars,some=tag-73 n=2i 1476437629342569532
ctr,host=tars,some=tag-74 n=2i 1476437629342569532
ctr,host=tars,some=tag-75 n=2i 1476437629342569532
ctr,host=tars,some=tag-76 n=2i 1476437629342569532
ctr,host=tars,some=tag-77 n=2i 1476437629342569532
ctr,host=tars,some=tag-78 n=2i 1476437629342569532
ctr,host=tars,some=tag-79 n=2i 1476437629342569532
ctr,host=tars,some=tag-80 n=2i 1476437629342569532
ctr,host=tars,some=tag-81 n=2i 1476437629342569532
ctr,host=tars,some=tag-82 n=2i 1476437629342569532
ctr,host=tars,some=tag-83 n=2i 1476437629342569532
ctr,host=tars,some=tag-84 n=2i 1476437629342569532
ctr,host=tars,some=tag-85 n=2i 1476437629342569532
ctr,host=tars,some=tag-86 n=2i 1476437629342569532
ctr,host=tars,some=tag-87 n=2i 1476437629342569532
ctr,host=tars,some=tag-88 n=2i 1476437629342569532
ctr,host=tars,some=tag-89 n=2i 1476437629342569532
ctr,host=tars,some=tag-90 n=2i 1476437629342569532
ctr,host=tars,some=tag-91 n=2i 1476437629342569532
ctr,host=tars,some=tag-92 n=2i 1476437629342569532
ctr,host=tars,some=tag-93 n=2i 1476437629342569532
ctr,host=tars,some=tag-94 n=2i 1476437629342569532
ctr,host=tars,some=tag-95 n=2i 1476437629342569532
ctr,host=tars,some=tag-96 n=2i 1476437629342569532
ctr,host=tars,some=tag-97 n=2i 1476437629342569532
ctr,host=tars,some=tag-98 n=2i 1476437629342569532
ctr,host=tars,some=tag-99 n=2i 1476437629342569532
ctr,host=tars,some=tag-100 n=2i 1476437629342569532
ctr,host=tars,some=tag-101 n=2i 1476437629342569532
ctr,host=tars,some=tag-102 n=2i 1476437629342569532
ctr,host=tars,some=tag-103 n=2i 1476437629342569532
ctr,host=tars,some=tag-104 n=2i 1476437629342569532
ctr,host=tars,some=tag-105 n=2i 1476437629342569532
ctr,host=tars,some=tag-106 n=2i 1476437629342569532
ctr,host=tars,some=tag-107 n=2i 1476437629342569532
ctr,host=tars,some=tag-108 n=2i 1476437629342569532
ctr,host=tars,some=tag-109 n=2i 1476437629342569532
ctr,host=tars,some=tag-110 n=2i 1476437629342569532
ctr,host=tars,some=tag-111 n=2i 1476437629342569532
ctr,host=tars,some=tag-112 n=2i 1476437629342569532
ctr,host=tars,some=tag-113 n=2i 1476437629342569532
ctr,host=tars,some=tag-114 n=2i 1476437629342569532
ctr,host=tars,some=tag-115 n=2i 1476437629342569532
ctr,host=tars,some=tag-116 n=2i 1476437629342569532
ctr,host=tars,some=tag-117 n=2i 1476437629342569532
ctr,host=tars,some=tag-118 n=2i 1476437629342569532
ctr,host=tars,some=tag-119 n=2i 1476437629342569532
ctr,host=tars,some=tag-120 n=2i 1476437629342569532
ctr,host=tars,some=tag-121 n=2i 1476437629342569532
ctr,host=tars,some=tag-122 n=2i 1476437629342569532
ctr,host=tars,some=tag-123 n=2i 1476437629342569532
ctr,host=tars,some=tag-124 n=2i 1476437629342569532
ctr,host=tars,some=tag-125 n=2i 1476437629342569532
ctr,host=tars,some=tag-126 n=2i 1476437629342569532
ctr,host=tars,some=tag-127 n=2i 1476437629342569532
ctr,host=tars,some=tag-128 n=2i 1476437629342569532
ctr,host=tars,some=tag-129 n=2i 1476437629342569532
ctr,host=tars,some=tag-130 n=2i 1476437629342569532
ctr,host=tars,some=tag-131 n=2i 1476437629342569532
ctr,host=tars,some=tag-132 n=2i 1476437629342569532
ctr,host=tars,some=tag-133 n=2i 1476437629342569532
ctr,host=tars,some=tag-134 n=2i 1476437629342569532
ctr,host=tars,some=tag-135 n=2i 1476437629342569532
ctr,host=tars,some=tag-136 n=2i 1476437629342569532
ctr,host=tars,some=tag-137 n=2i 1476437629342569532
ctr,host=tars,some=tag-138 n=2i 1476437629342569532
ctr,host=tars,some=tag-139 n=2i 1476437629342569532
ctr,host=tars,some=tag-140 n=2i 1476437629342569532
ctr,host=tars,some=tag-141 n=2i 1476437629342569532
ctr,host=tars,some=tag-142 n=2i 1476437629342569532
ctr,host=tars,some=tag-143 n=2i 1476437629342569532
ctr,host=tars,some=tag-144 n=2i 1476437629342569532
ctr,host=tars,some=tag-145 n=2i 1476437629342569532
ctr,host=tars,some=tag-146 n=2i 1476437629342569532
ctr,host=tars,some=tag-147 n=2i 1476437629342569532
ctr,host=tars,some=tag-148 n=2i 1476437629342569532
ctr,host=tars,some=tag-149 n=2i 1476437629342569532
ctr,host=tars,some=tag-150 n=2i 1476437629342569532
ctr,host=tars,some=tag-151 n=2i 1476437629342569532
ctr,host=tars,some=tag-152 n=2i 1476437629342569532
ctr,host=tars,some=tag-153 n=2i 1476437629342569532
ctr,host=tars,some=tag-154 n=2i 1476437629342569532
ctr,host=tars,some=tag-155 n=2i 1476437629342569532
ctr,host=tars,some=tag-156 n=2i 1476437629342569532
ctr,host=tars,some=tag-157 n=2i 1476437629342569532
ctr,host=tars,some=tag-158 n=2i 1476437629342569532
ctr,host=tars,some=tag-159 n=2i 1476437629342569532
ctr,host=tars,some=tag-160 n=2i 1476437629342569532
ctr,host=tars,some=tag-161 n=2i 1476437629342569532
ctr,host=tars,some=tag-162 n=2i 1476437629342569532
ctr,host=tars,some=tag-163 n=2i 1476437629342569532
ctr,host=tars,some=tag-164 n=2i 1476437629342569532
ctr,host=tars,some=tag-165 n=2i 1476437629342569532
ctr,host=tars,some=tag-166 n=2i 1476437629342569532
ctr,host=tars,some=tag-167 n=2i 1476437629342569532
ctr,host=tars,some=tag-168 n=2i 1476437629342569532
ctr,host=tars,some=tag-169 n=2i 1476437629342569532
ctr,host=tars,some=tag-170 n=2i 1476437629342569532
ctr,host=tars,some=tag-171 n=2i 1476437629342569532
ctr,host=tars,some=tag-172 n=2i 1476437629342569532
ctr,host=tars,some=tag-173 n=2i 1476437629342569532
ctr,host=tars,some=tag-174 n=2i 1476437629342569532
ctr,host=tars,some=tag-175 n=2i 1476437629342569532
ctr,host=tars,some=tag-176 n=2i 1476437629342569532
ctr,host=tars,some=tag-177 n=2i 1476437629342569532
ctr,host=tars,some=tag-178 n=2i 1476437629342569532
ctr,host=tars,some=tag-179 n=2i 1476437629342569532
ctr,host=tars,some=tag-180 n=2i 1476437629342569532
ctr,host=tars,some=tag-181 n=2i 1476437629342569532
ctr,host=tars,some=tag-182 n=2i 1476437629342569532
ctr,host=tars,some=tag-183 n=2i 1476437629342569532
ctr,host=tars,some=tag-184 n=2i 1476437629342569532
ctr,host=tars,some=tag-185 n=2i 1476437629342569532
ctr,host=tars,some=tag-186 n=2i 1476437629342569532
ctr,host=tars,some=tag-187 n=2i 1476437629342569532
ctr,host=tars,some=tag-188 n=2i 1476437629342569532
ctr,host=tars,some=tag-189 n=2i 1476437629342569532
ctr,host=tars,some=tag-190 n=2i 1476437629342569532
ctr,host=tars,some=tag-191 n=2i 1476437629342569532
ctr,host=tars,some=tag-192 n=2i 1476437629342569532
ctr,host=tars,some=tag-193 n=2i 1476437629342569532
ctr,host=tars,some=tag-194 n=2i 1476437629342569532
ctr,host=tars,some=tag-195 n=2i 1476437629342569532
ctr,host=tars,some=tag-196 n=2i 1476437629342569532
ctr,host=tars,some=tag-197 n=2i 1476437629342569532
ctr,host=tars,some=tag-198 n=2i 1476437629342569532
ctr,host=tars,some=tag-199 n=2i 1476437629342569532
ctr,host=tars,some=tag-200 n=2i 1476437629342569532
ctr,host=tars,some=tag-201 n=2i 1476437629342569532
ctr,host=tars,some=tag-202 n=2i 1476437629342569532
ctr,host=tars,some=tag-203 n=2i 1476437629342569532
ctr,host=tars,some=tag-204 n=2i 1476437629342569532
ctr,host=tars,some=tag-205 n=2i 1476437629342569532
ctr,host=tars,some=tag-206 n=2i 1476437629342569532
ctr,host=tars,some=tag-207 n=2i 1476437629342569532
ctr,host=tars,some=tag-208 n=2i 1476437629342569532
ctr,host=tars,some=tag-209 n=2i 1476437629342569532
ctr,host=tars,some=tag-210 n=2i 1476437629342569532
ctr,host=tars,some=tag-211 n=2i 1476437629342569532
ctr,host=tars,some=tag-212 n=2i 1476437629342569532
ctr,host=tars,some=tag-213 n=2i 1476437629342569532
ctr,host=tars,some=tag-214 n=2i 1476437629342569532
ctr,host=tars,some=tag-215 n=2i 1476437629342569532
ctr,host=tars,some=tag-216 n=2i 1476437629342569532
ctr,host=tars,some=tag-217 n=2i 1476437629342569532
ctr,host=tars,some=tag-218 n=2i 1476437629342569532
ctr,host=tars,some=tag-219 n=2i 1476437629342569532
ctr,host=tars,some=tag-220 n=2i 1476437629342569532
ctr,host=tars,some=tag-221 n=2i 1476437629342569532
ctr,host=tars,some=tag-222 n=2i 1476437629342569532
ctr,host=tars,some=tag-223 n=2i 1476437629342569532
ctr,host=tars,some=tag-224 n=2i 1476437629342569532
ctr,host=tars,some=tag-225 n=2i 1476437629342569532
ctr,host=tars,some=tag-226 n=2i 1476437629342569532
ctr,host=tars,some=tag-227 n=2i 1476437629342569532
ctr,host=tars,some=tag-228 n=2i 1476437629342569532
ctr,host=tars,some=tag-229 n=2i 1476437629342569532
ctr,host=tars,some=tag-230 n=2i 1476437629342569532
ctr,host=tars,some=tag-231 n=2i 1476437629342569532
ctr,host=tars,some=tag-232 n=2i 1476437629342569532
ctr,host=tars,some=tag-233 n=2i 1476437629342569532
ctr,host=tars,some=tag-234 n=2i 1476437629342569532
ctr,host=tars,some=tag-235 n=2i 1476437629342569532
ctr,host=tars,some=tag-236 n=2i 1476437629342569532
ctr,host=tars,some=tag-237 n=2i 1476437629342569532
ctr,host=tars,some=tag-238 n=2i 1476437629342569532
ctr,host=tars,some=tag-239 n=2i 1476437629342569532
ctr,host=tars,some=tag-240 n=2i 1476437629342569532
ctr,host=tars,some=tag-241 n=2i 1476437629342569532
ctr,host=tars,some=tag-242 n=2i 1476437629342569532
ctr,host=tars,some=tag-243 n=2i 1476437629342569532
ctr,host=tars,some=tag-244 n=2i 1476437629342569532
ctr,host=tars,some=tag-245 n=2i 1476437629342569532
ctr,host=tars,some=tag-246 n=2i 1476437629342569532
ctr,host=tars,some=tag-247 n=2i 1476437629342569532
ctr,host=tars,some=tag-248 n=2i 1476437629342569532
ctr,host=tars,some=tag-249 n=2i 1476437629342569532
ctr,host=tars,some=tag-250 n=2i 1476437629342569532
ctr,host=tars,some=tag-251 n=1i 1476437629342569532
ctr,host=tars,some=tag-252 n=1i 1476437629342569532
ctr,host=tars,some=tag-253 n=1i 1476437629342569532
ctr,host=tars,some=tag-254 n=1i 1476437629342569532
ctr,host=tars,some=tag-255 n=1i 1476437629342569532
ctr,host=tars,some=tag-256 n=1i 1476437629342569532
ctr,host=tars,some=tag-257 n=1i 1476437629342569532
ctr,host=tars,some=tag-258 n=1i 1476437629342569532
ctr,host=tars,some=tag-259 n=1i 1476437629342569532
ctr,host=tars,some=tag-260 n=1i 1476437629342569532
ctr,host=tars,some=tag-261 n=1i 1476437629342569532
ctr,host=tars,some=tag-262 n=1i 1476437629342569532
ctr,host=tars,some=tag-263 n=1i 1476437629342569532
ctr,host=tars,some=tag-264 n=1i 1476437629342569532
ctr,host=tars,some=tag-265 n=1i 1476437629342569532
ctr,host=tars,some=tag-266 n=1i 1476437629342569532
ctr,host=tars,some=tag-267 n=1i 1476437629342569532
ctr,host=tars,some=tag-268 n=1i 1476437629342569532
ctr,host=tars,some=tag-269 n=1i 1476437629342569532
ctr,host=tars,some=tag-270 n=1i 1476437629342569532
ctr,host=tars,some=tag-271 n=1i 1476437629342569532
ctr,host=tars,some=tag-272 n=1i 1476437629342569532
ctr,host=tars,some=tag-273 n=1i 1476437629342569532
ctr,host=tars,some=tag-274 n=1i 1476437629342569532
ctr,host=tars,some=tag-275 n=1i 1476437629342569532
ctr,host=tars,some=tag-276 n=1i 1476437629342569532
ctr,host=tars,some=tag-277 n=1i 1476437629342569532
ctr,host=tars,some=tag-278 n=1i 1476437629342569532
ctr,host=tars,some=tag-279 n=1i 1476437629342569532
ctr,host=tars,some=tag-280 n=1i 1476437629342569532
ctr,host=tars,some=tag-281 n=1i 1476437629342569532
ctr,host=tars,some=tag-282 n=1i 1476437629342569532
ctr,host=tars,some=tag-283 n=1i 1476437629342569532
ctr,host=tars,some=tag-284 n=1i 1476437629342569532
ctr,host=tars,some=tag-285 n=1i 1476437629342569532
ctr,host=tars,some=tag-286 n=1i 1476437629342569532
ctr,host=tars,some=tag-287 n=1i 1476437629342569532
ctr,host=tars,some=tag-288 n=1i 1476437629342569532
ctr,host=tars,some=tag-289 n=1i 1476437629342569532
ctr,host=tars,some=tag-290 n=1i 1476437629342569532
ctr,host=tars,some=tag-291 n=1i 1476437629342569532
ctr,host=tars,some=tag-292 n=1i 1476437629342569532
ctr,host=tars,some=tag-293 n=1i 1476437629342569532
ctr,host=tars,some=tag-294 n=1i 1476437629342569532
ctr,host=tars,some=tag-295 n=1i 1476437629342569532
ctr,host=tars,some=tag-296 n=1i 1476437629342569532
ctr,host=tars,some=tag-297 n=1i 1476437629342569532
ctr,host=tars,some=tag-298 n=1i 1476437629342569532
ctr,host=tars,some=tag-299 n=1i 1476437629342569532
ctr,host=tars,some=tag-300 n=1i 1476437629342569532
ctr,host=tars,some=tag-301 n=1i 1476437629342569532
ctr,host=tars,some=tag-302 n=1i 1476437629342569532
ctr,host=tars,some=tag-303 n=1i 1476437629342569532
ctr,host=tars,some=tag-304 n=1i 1476437629342569532
ctr,host=tars,some=tag-305 n=1i 1476437629342569532
ctr,host=tars,some=tag-306 n=1i 1476437629342569532
ctr,host=tars,some=tag-307 n=1i 1476437629342569532
ctr,host=tars,some=tag-308 n=1i 1476437629342569532
ctr,host=tars,some=tag-309 n=1i 1476437629342569532
ctr,host=tars,some=tag-310 n=1i 1476437629342569532
ctr,host=tars,some=tag-311 n=1i 1476437629342569532
ctr,host=tars,some=tag-312 n=0i 1476437629342569532
ctr,host=tars,some=tag-313 n=0i 1476437629342569532
ctr,host=tars,some=tag-314 n=0i 1476437629342569532
ctr,host=tars,some=tag-315 n=0i 1476437629342569532
ctr,host=tars,some=tag-316 n=0i 1476437629342569532
ctr,host=tars,some=tag-317 n=0i 1476437629342569532
ctr,host=tars,some=tag-318 n=0i 1476437629342569532
ctr,host=tars,some=tag-319 n=0i 1476437629342569532
ctr,host=tars,some=tag-320 n=0i 1476437629342523514
ctr,host=tars,some=tag-321 n=0i 1476437629342523514
ctr,host=tars,some=tag-322 n=0i 1476437629342523514
ctr,host=tars,some=tag-323 n=0i 1476437629342523514
ctr,host=tars,some=tag-324 n=0i 1476437629342523514
ctr,host=tars,some=tag-325 n=0i 1476437629342569532
ctr,host=tars,some=tag-326 n=0i 1476437629342523514
ctr,host=tars,some=tag-327 n=0i 1476437629342523514
ctr,host=tars,some=tag-328 n=0i 1476437629342523514
ctr,host=tars,some=tag-329 n=0i 1476437629342523514
ctr,host=tars,some=tag-330 n=0i 1476437629342569532
ctr,host=tars,some=tag-331 n=0i 1476437629342569532
ctr,host=tars,some=tag-332 n=0i 1476437629342569532
ctr,host=tars,some=tag-333 n=0i 1476437629342569532
ctr,host=tars,some=tag-334 n=0i 1476437629342569532
ctr,host=tars,some=tag-335 n=0i 1476437629342569532
ctr,host=tars,some=tag-336 n=0i 1476437629342569532
ctr,host=tars,some=tag-337 n=0i 1476437629342569532
ctr,host=tars,some=tag-338 n=0i 1476437629342523514
ctr,host=tars,some=tag-339 n=0i 1476437629342523514
ctr,host=tars,some=tag-340 n=0i 1476437629342523514
ctr,host=tars,some=tag-341 n=0i 1476437629342569532
ctr,host=tars,some=tag-342 n=1i 1476437629342569532
ctr,host=tars,some=tag-343 n=1i 1476437629342569532
ctr,host=tars,some=tag-344 n=1i 1476437629342569532
ctr,host=tars,some=tag-345 n=1i 1476437629342569532
ctr,host=tars,some=tag-346 n=1i 1476437629342569532
ctr,host=tars,some=tag-347 n=1i 1476437629342569532
ctr,host=tars,some=tag-348 n=1i 1476437629342569532
ctr,host=tars,some=tag-349 n=1i 1476437629342569532
ctr,host=tars,some=tag-350 n=1i 1476437629342569532
ctr,host=tars,some=tag-351 n=1i 1476437629342569532
ctr,host=tars,some=tag-352 n=0i 1476437629342569532
ctr,host=tars,some=tag-353 n=0i 1476437629342569532
ctr,host=tars,some=tag-354 n=0i 1476437629342569532
ctr,host=tars,some=tag-355 n=0i 1476437629342569532
ctr,host=tars,some=tag-356 n=0i 1476437629342569532
ctr,host=tars,some=tag-357 n=0i 1476437629342523514
ctr,host=tars,some=tag-358 n=0i 1476437629342569532
ctr,host=tars,some=tag-359 n=0i 1476437629342569532
ctr,host=tars,some=tag-360 n=0i 1476437629342569532
ctr,host=tars,some=tag-361 n=0i 1476437629342569532
ctr,host=tars,some=tag-362 n=0i 1476437629342569532
ctr,host=tars,some=tag-363 n=0i 1476437629342569532
ctr,host=tars,some=tag-364 n=0i 1476437629342569532
ctr,host=tars,some=tag-365 n=0i 1476437629342569532
ctr,host=tars,some=tag-366 n=0i 1476437629342569532
ctr,host=tars,some=tag-367 n=0i 1476437629342569532
ctr,host=tars,some=tag-368 n=0i 1476437629342523514
ctr,host=tars,some=tag-369 n=0i 1476437629342569532
ctr,host=tars,some=tag-370 n=0i 1476437629342569532
ctr,host=tars,some=tag-371 n=0i 1476437629342569532
ctr,host=tars,some=tag-372 n=0i 1476437629342523514
ctr,host=tars,some=tag-373 n=0i 1476437629342523514
ctr,host=tars,some=tag-374 n=0i 1476437629342569532
ctr,host=tars,some=tag-375 n=0i 1476437629342569532
ctr,host=tars,some=tag-376 n=0i 1476437629342523514
ctr,host=tars,some=tag-377 n=0i 1476437629342523514
ctr,host=tars,some=tag-378 n=0i 1476437629342523514
ctr,host=tars,some=tag-379 n=0i 1476437629342523514
ctr,host=tars,some=tag-380 n=0i 1476437629342523514
ctr,host=tars,some=tag-381 n=0i 1476437629342523514
ctr,host=tars,some=tag-382 n=0i 1476437629342523514
ctr,host=tars,some=tag-383 n=0i 1476437629342523514
ctr,host=tars,some=tag-384 n=0i 1476437629342569532
ctr,host=tars,some=tag-385 n=0i 1476437629342569532
ctr,host=tars,some=tag-386 n=0i 1476437629342569532
ctr,host=tars,some=tag-387 n=0i 1476437629342569532
ctr,host=tars,some=tag-388 n=0i 1476437629342569532
ctr,host=tars,some=tag-389 n=0i 1476437629342569532
ctr,host=tars,some=tag-390 n=0i 1476437629342569532
ctr,host=tars,some=tag-391 n=0i 1476437629342569532
ctr,host=tars,some=tag-392 n=0i 1476437629342569532
ctr,host=tars,some=tag-393 n=0i 1476437629342569532
ctr,host=tars,some=tag-394 n=0i 1476437629342569532
ctr,host=tars,some=tag-395 n=0i 1476437629342523514
ctr,host=tars,some=tag-396 n=0i 1476437629342523514
ctr,host=tars,some=tag-397 n=0i 1476437629342523514
ctr,host=tars,some=tag-398 n=0i 1476437629342523514
ctr,host=tars,some=tag-399 n=0i 1476437629342523514
ctr,host=tars,some=tag-400 n=0i 1476437629342523514
ctr,host=tars,some=tag-401 n=0i 1476437629342523514
ctr,host=tars,some=tag-402 n=0i 1476437629342569532
ctr,host=tars,some=tag-403 n=0i 1476437629342569532
ctr,host=tars,some=tag-404 n=0i 1476437629342523514
ctr,host=tars,some=tag-405 n=0i 1476437629342569532
ctr,host=tars,some=tag-406 n=0i 1476437629342523514
ctr,host=tars,some=tag-407 n=0i 1476437629342523514
ctr,host=tars,some=tag-408 n=0i 1476437629342569532
ctr,host=tars,some=tag-409 n=0i 1476437629342569532
ctr,host=tars,some=tag-410 n=0i 1476437629342523514
ctr,host=tars,some=tag-411 n=0i 1476437629342523514
ctr,host=tars,some=tag-412 n=0i 1476437629342569532
ctr,host=tars,some=tag-413 n=0i 1476437629342523514
ctr,host=tars,some=tag-414 n=0i 1476437629342523514
ctr,host=tars,some=tag-415 n=0i 1476437629342523514
ctr,host=tars,some=tag-416 n=0i 1476437629342569532
ctr,host=tars,some=tag-417 n=0i 1476437629342569532
ctr,host=tars,some=tag-418 n=0i 1476437629342569532
ctr,host=tars,some=tag-419 n=0i 1476437629342523514
ctr,host=tars,some=tag-420 n=0i 1476437629342523514
ctr,host=tars,some=tag-421 n=0i 1476437629342569532
ctr,host=tars,some=tag-422 n=0i 1476437629342569532
ctr,host=tars,some=tag-423 n=0i 1476437629342523514
ctr,host=tars,some=tag-424 n=0i 1476437629342523514
ctr,host=tars,some=tag-425 n=0i 1476437629342523514
ctr,host=tars,some=tag-426 n=1i 1476437629342569532
ctr,host=tars,some=tag-427 n=1i 1476437629342569532
ctr,host=tars,some=tag-428 n=1i 1476437629342569532
ctr,host=tars,some=tag-429 n=1i 1476437629342569532
ctr,host=tars,some=tag-430 n=1i 1476437629342569532
ctr,host=tars,some=tag-431 n=1i 1476437629342569532
ctr,host=tars,some=tag-432 n=1i 1476437629342569532
ctr,host=tars,some=tag-433 n=1i 1476437629342569532
ctr,host=tars,some=tag-434 n=1i 1476437629342569532
ctr,host=tars,some=tag-435 n=1i 1476437629342569532
ctr,host=tars,some=tag-436 n=0i 1476437629342569532
ctr,host=tars,some=tag-437 n=0i 1476437629342569532
ctr,host=tars,some=tag-438 n=0i 1476437629342523514
ctr,host=tars,some=tag-439 n=0i 1476437629342569532
ctr,host=tars,some=tag-440 n=0i 1476437629342569532
ctr,host=tars,some=tag-441 n=0i 1476437629342523514
ctr,host=tars,some=tag-442 n=0i 1476437629342569532
ctr,host=tars,some=tag-443 n=0i 1476437629342569532
ctr,host=tars,some=tag-444 n=0i 1476437629342523514
ctr,host=tars,some=tag-445 n=0i 1476437629342569532
ctr,host=tars,some=tag-446 n=0i 1476437629342523514
ctr,host=tars,some=tag-447 n=0i 1476437629342569532
ctr,host=tars,some=tag-448 n=0i 1476437629342523514
ctr,host=tars,some=tag-449 n=0i 1476437629342523514
ctr,host=tars,some=tag-450 n=0i 1476437629342523514
ctr,host=tars,some=tag-451 n=0i 1476437629342523514
ctr,host=tars,some=tag-452 n=0i 1476437629342523514
ctr,host=tars,some=tag-453 n=0i 1476437629342569532
ctr,host=tars,some=tag-454 n=0i 1476437629342569532
ctr,host=tars,some=tag-455 n=0i 1476437629342569532
ctr,host=tars,some=tag-456 n=0i 1476437629342569532
ctr,host=tars,some=tag-457 n=0i 1476437629342569532
ctr,host=tars,some=tag-458 n=0i 1476437629342569532
ctr,host=tars,some=tag-459 n=0i 1476437629342569532
ctr,host=tars,some=tag-460 n=0i 1476437629342569532
ctr,host=tars,some=tag-461 n=0i 1476437629342523514
ctr,host=tars,some=tag-462 n=0i 1476437629342569532
ctr,host=tars,some=tag-463 n=0i 1476437629342569532
ctr,host=tars,some=tag-464 n=0i 1476437629342523514
ctr,host=tars,some=tag-465 n=0i 1476437629342523514
ctr,host=tars,some=tag-466 n=0i 1476437629342569532
ctr,host=tars,some=tag-467 n=0i 1476437629342569532
ctr,host=tars,some=tag-468 n=0i 1476437629342569532
ctr,host=tars,some=tag-469 n=2i 1476437629342569532
ctr,host=tars,some=tag-470 n=2i 1476437629342569532
ctr,host=tars,some=tag-471 n=2i 1476437629342569532
ctr,host=tars,some=tag-472 n=2i 1476437629342569532
ctr,host=tars,some=tag-473 n=2i 1476437629342569532
ctr,host=tars,some=tag-474 n=2i 1476437629342569532
ctr,host=tars,some=tag-475 n=2i 1476437629342569532
ctr,host=tars,some=tag-476 n=2i 1476437629342569532
ctr,host=tars,some=tag-477 n=2i 1476437629342569532
ctr,host=tars,some=tag-478 n=2i 1476437629342569532
ctr,host=tars,some=tag-479 n=2i 1476437629342569532
ctr,host=tars,some=tag-480 n=2i 1476437629342569532
ctr,host=tars,some=tag-481 n=2i 1476437629342569532
ctr,host=tars,some=tag-482 n=2i 1476437629342569532
ctr,host=tars,some=tag-483 n=2i 1476437629342569532
ctr,host=tars,some=tag-484 n=2i 1476437629342569532
ctr,host=tars,some=tag-485 n=2i 1476437629342569532
ctr,host=tars,some=tag-486 n=2i 1476437629342569532
ctr,host=tars,some=tag-487 n=2i 1476437629342569532
ctr,host=tars,some=tag-488 n=1i 1476437629342569532
ctr,host=tars,some=tag-489 n=1i 1476437629342569532
ctr,host=tars,some=tag-490 n=2i 1476437629342569532
ctr,host=tars,some=tag-491 n=2i 1476437629342569532
ctr,host=tars,some=tag-492 n=2i 1476437629342569532
ctr,host=tars,some=tag-493 n=2i 1476437629342569532
ctr,host=tars,some=tag-494 n=2i 1476437629342569532
ctr,host=tars,some=tag-495 n=2i 1476437629342569532
ctr,host=tars,some=tag-496 n=2i 1476437629342569532
ctr,host=tars,some=tag-497 n=2i 1476437629342569532
ctr,host=tars,some=tag-498 n=1i 1476437629342569532
ctr,host=tars,some=tag-499 n=1i 1476437629342569532

53
metric/inline_strconv_parse.go → plugins/parsers/influx/escape.go
View File

@ -1,11 +1,62 @@
package metric
package influx
import (
"bytes"
"reflect"
"strconv"
"strings"
"unsafe"
)
const (
escapes = " ,="
nameEscapes = " ,"
stringFieldEscapes = `\"`
)
var (
unescaper = strings.NewReplacer(
`\,`, `,`,
`\"`, `"`, // ???
`\ `, ` `,
`\=`, `=`,
)
nameUnescaper = strings.NewReplacer(
`\,`, `,`,
`\ `, ` `,
)
stringFieldUnescaper = strings.NewReplacer(
`\"`, `"`,
`\\`, `\`,
)
)
func unescape(b []byte) string {
if bytes.ContainsAny(b, escapes) {
return unescaper.Replace(unsafeBytesToString(b))
} else {
return string(b)
}
}
func nameUnescape(b []byte) string {
if bytes.ContainsAny(b, nameEscapes) {
return nameUnescaper.Replace(unsafeBytesToString(b))
} else {
return string(b)
}
}
func stringFieldUnescape(b []byte) string {
if bytes.ContainsAny(b, stringFieldEscapes) {
return stringFieldUnescaper.Replace(unsafeBytesToString(b))
} else {
return string(b)
}
}
// parseIntBytes is a zero-alloc wrapper around strconv.ParseInt.
func parseIntBytes(b []byte, base int, bitSize int) (i int64, err error) {
s := unsafeBytesToString(b)

95
plugins/parsers/influx/handler.go Normal file
View File

@ -0,0 +1,95 @@
package influx
import (
"bytes"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
"github.com/prometheus/common/log"
)
type MetricHandler struct {
builder *metric.Builder
metrics []telegraf.Metric
precision time.Duration
}
func NewMetricHandler() *MetricHandler {
return &MetricHandler{
builder: metric.NewBuilder(),
precision: time.Nanosecond,
}
}
func (h *MetricHandler) SetTimeFunc(f metric.TimeFunc) {
h.builder.TimeFunc = f
}
func (h *MetricHandler) SetPrecision(factor time.Duration) {
h.precision = factor
}
func (h *MetricHandler) Metric() (telegraf.Metric, error) {
return h.builder.Metric()
}
func (h *MetricHandler) SetMeasurement(name []byte) {
h.builder.SetName(nameUnescape(name))
}
func (h *MetricHandler) AddTag(key []byte, value []byte) {
tk := unescape(key)
tv := unescape(value)
h.builder.AddTag(tk, tv)
}
func (h *MetricHandler) AddInt(key []byte, value []byte) {
fk := unescape(key)
fv, err := parseIntBytes(bytes.TrimSuffix(value, []byte("i")), 10, 64)
if err != nil {
log.Errorf("E! Received unparseable int value: %q", value)
return
}
h.builder.AddField(fk, fv)
}
func (h *MetricHandler) AddFloat(key []byte, value []byte) {
fk := unescape(key)
fv, err := parseFloatBytes(value, 64)
if err != nil {
log.Errorf("E! Received unparseable float value: %q", value)
return
}
h.builder.AddField(fk, fv)
}
func (h *MetricHandler) AddString(key []byte, value []byte) {
fk := unescape(key)
fv := stringFieldUnescape(value)
h.builder.AddField(fk, fv)
}
func (h *MetricHandler) AddBool(key []byte, value []byte) {
fk := unescape(key)
fv, err := parseBoolBytes(value)
if err != nil {
log.Errorf("E! Received unparseable boolean value: %q", value)
return
}
h.builder.AddField(fk, fv)
}
func (h *MetricHandler) SetTimestamp(tm []byte) {
v, err := parseIntBytes(tm, 10, 64)
if err != nil {
log.Errorf("E! Received unparseable timestamp: %q", tm)
return
}
ns := v * int64(h.precision)
h.builder.SetTime(time.Unix(0, ns))
}
func (h *MetricHandler) Reset() {
h.builder.Reset()
}

21171
plugins/parsers/influx/machine.go Normal file
View File

File diff suppressed because it is too large Load Diff

297
plugins/parsers/influx/machine.go.rl Normal file
View File

@ -0,0 +1,297 @@
package influx
import (
"errors"
)
var (
ErrNameParse = errors.New("expected measurement name")
ErrFieldParse = errors.New("expected field")
ErrTagParse = errors.New("expected tag")
ErrTimestampParse = errors.New("expected timestamp")
ErrParse = errors.New("parse error")
)
%%{
machine LineProtocol;
action begin {
m.pb = m.p
}
action yield {
yield = true
fnext align;
fbreak;
}
action name_error {
m.err = ErrNameParse
fhold;
fnext discard_line;
fbreak;
}
action field_error {
m.err = ErrFieldParse
fhold;
fnext discard_line;
fbreak;
}
action tagset_error {
m.err = ErrTagParse
fhold;
fnext discard_line;
fbreak;
}
action timestamp_error {
m.err = ErrTimestampParse
fhold;
fnext discard_line;
fbreak;
}
action parse_error {
m.err = ErrParse
fhold;
fnext discard_line;
fbreak;
}
action hold_recover {
fhold;
fgoto main;
}
action discard {
fgoto align;
}
action name {
m.handler.SetMeasurement(m.text())
}
action tagkey {
key = m.text()
}
action tagvalue {
m.handler.AddTag(key, m.text())
}
action fieldkey {
key = m.text()
}
action integer {
m.handler.AddInt(key, m.text())
}
action float {
m.handler.AddFloat(key, m.text())
}
action bool {
m.handler.AddBool(key, m.text())
}
action string {
m.handler.AddString(key, m.text())
}
action timestamp {
m.handler.SetTimestamp(m.text())
}
ws =
[\t\v\f ];
non_zero_digit =
[1-9];
integer =
'-'? ( digit | ( non_zero_digit digit* ) );
number =
( integer ( '.' digit* )? ) | ( '.' digit* );
scientific =
number 'e'i ["\-+"]? digit+;
timestamp =
('-'? digit{1,19}) >begin %timestamp;
fieldkeychar =
[^\t\n\f\r ,=\\] | ( '\\' [^\t\n\f\r] );
fieldkey =
fieldkeychar+ >begin %fieldkey;
fieldfloat =
(scientific | number) >begin %float;
fieldinteger =
(integer 'i') >begin %integer;
false =
"false" | "FALSE" | "False" | "F" | "f";
true =
"true" | "TRUE" | "True" | "T" | "t";
fieldbool =
(true | false) >begin %bool;
fieldstringchar =
[^\\"] | '\\' [\\"];
fieldstring =
fieldstringchar* >begin %string;
fieldstringquoted =
'"' fieldstring '"';
fieldvalue = fieldinteger | fieldfloat | fieldstringquoted | fieldbool;
field =
fieldkey '=' fieldvalue;
fieldset =
field ( ',' field )*;
tagchar =
[^\t\n\f\r ,=\\] | ( '\\' [^\t\n\f\r] );
tagkey =
tagchar+ >begin %tagkey;
tagvalue =
tagchar+ >begin %tagvalue;
tagset =
(',' (tagkey '=' tagvalue) $err(tagset_error))*;
measurement_chars =
[^\t\n\f\r ,\\] | ( '\\' [^\t\n\f\r] );
measurement_start =
measurement_chars - '#';
measurement =
(measurement_start measurement_chars*) >begin %name;
newline =
[\r\n];
comment =
'#' (any -- newline)* newline;
eol =
ws* newline? >yield %eof(yield);
line =
measurement
tagset
(ws+ fieldset) $err(field_error)
(ws+ timestamp)? $err(timestamp_error)
eol;
# The main machine parses a single line of line protocol.
main := line $err(parse_error);
# The discard_line machine discards the current line. Useful for recovering
# on the next line when an error occurs.
discard_line :=
(any - newline)* newline @discard;
# The align machine scans forward to the start of the next line. This machine
# is used to skip over whitespace and comments, keeping this logic out of the
# main machine.
align :=
(space* comment)* space* measurement_start @hold_recover %eof(yield);
}%%
%% write data;
type machine struct {
data []byte
cs int
p, pe, eof int
pb int
handler Handler
err error
}
func NewMachine(handler Handler) *machine {
m := &machine{
handler: handler,
}
%% access m.;
%% variable p m.p;
%% variable pe m.pe;
%% variable eof m.eof;
%% variable data m.data;
%% write init;
return m
}
func (m *machine) SetData(data []byte) {
m.data = data
m.p = 0
m.pb = 0
m.pe = len(data)
m.eof = len(data)
m.err = nil
%% write init;
m.cs = LineProtocol_en_align
}
// ParseLine parses a line of input and returns true if more data can be
// parsed.
func (m *machine) ParseLine() bool {
if m.data == nil || m.p >= m.pe {
m.err = nil
return false
}
m.err = nil
var key []byte
var yield bool
%% write exec;
// Even if there was an error, return true. On the next call to this
// function we will attempt to scan to the next line of input and recover.
if m.err != nil {
return true
}
// Don't check the error state in the case that we just yielded, because
// the yield indicates we just completed parsing a line.
if !yield && m.cs == LineProtocol_error {
m.err = ErrParse
return true
}
return true
}
// Err returns the error that occurred on the last call to ParseLine. If the
// result is nil, then the line was parsed successfully.
func (m *machine) Err() error {
return m.err
}
// Position returns the current position into the input.
func (m *machine) Position() int {
return m.p
}
func (m *machine) text() []byte {
return m.data[m.pb:m.p]
}

1312
plugins/parsers/influx/machine_test.go Normal file
View File

File diff suppressed because it is too large Load Diff

118
plugins/parsers/influx/parser.go
View File

@ -1,64 +1,112 @@
package influx
import (
"bytes"
"errors"
"fmt"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
)
// InfluxParser is an object for Parsing incoming metrics.
type InfluxParser struct {
// DefaultTags will be added to every parsed metric
DefaultTags map[string]string
const (
maxErrorBufferSize = 1024
)
var (
ErrNoMetric = errors.New("no metric in line")
)
type Handler interface {
SetMeasurement(name []byte)
AddTag(key []byte, value []byte)
AddInt(key []byte, value []byte)
AddFloat(key []byte, value []byte)
AddString(key []byte, value []byte)
AddBool(key []byte, value []byte)
SetTimestamp(tm []byte)
Reset()
}
func (p *InfluxParser) ParseWithDefaultTimePrecision(buf []byte, t time.Time, precision string) ([]telegraf.Metric, error) {
if !bytes.HasSuffix(buf, []byte("\n")) {
buf = append(buf, '\n')
type ParseError struct {
Offset int
msg string
buf string
}
func (e *ParseError) Error() string {
buffer := e.buf
if len(buffer) > maxErrorBufferSize {
buffer = buffer[:maxErrorBufferSize] + "..."
}
// parse even if the buffer begins with a newline
buf = bytes.TrimPrefix(buf, []byte("\n"))
metrics, err := metric.ParseWithDefaultTimePrecision(buf, t, precision)
if len(p.DefaultTags) > 0 {
for _, m := range metrics {
for k, v := range p.DefaultTags {
// only set the default tag if it doesn't already exist:
if !m.HasTag(k) {
m.AddTag(k, v)
}
return fmt.Sprintf("metric parse error: %s at offset %d: %q", e.msg, e.Offset, buffer)
}
type Parser struct {
DefaultTags map[string]string
*machine
handler *MetricHandler
}
func NewParser(handler *MetricHandler) *Parser {
return &Parser{
machine: NewMachine(handler),
handler: handler,
}
}
func (p *Parser) Parse(input []byte) ([]telegraf.Metric, error) {
metrics := make([]telegraf.Metric, 0)
p.machine.SetData(input)
for p.machine.ParseLine() {
err := p.machine.Err()
if err != nil {
return nil, &ParseError{
Offset: p.machine.Position(),
msg: err.Error(),
buf: string(input),
}
}
metric, err := p.handler.Metric()
if err != nil {
return nil, err
}
p.handler.Reset()
metrics = append(metrics, metric)
}
return metrics, err
p.applyDefaultTags(metrics)
return metrics, nil
}
// Parse returns a slice of Metrics from a text representation of a
// metric (in line-protocol format)
// with each metric separated by newlines. If any metrics fail to parse,
// a non-nil error will be returned in addition to the metrics that parsed
// successfully.
func (p *InfluxParser) Parse(buf []byte) ([]telegraf.Metric, error) {
return p.ParseWithDefaultTimePrecision(buf, time.Now(), "")
}
func (p *InfluxParser) ParseLine(line string) (telegraf.Metric, error) {
func (p *Parser) ParseLine(line string) (telegraf.Metric, error) {
metrics, err := p.Parse([]byte(line + "\n"))
if err != nil {
return nil, err
}
if len(metrics) < 1 {
return nil, fmt.Errorf(
"Can not parse the line: %s, for data format: influx ", line)
return nil, ErrNoMetric
}
return metrics[0], nil
}
func (p *InfluxParser) SetDefaultTags(tags map[string]string) {
func (p *Parser) SetDefaultTags(tags map[string]string) {
p.DefaultTags = tags
}
func (p *Parser) applyDefaultTags(metrics []telegraf.Metric) {
if len(p.DefaultTags) == 0 {
return
}
for _, m := range metrics {
for k, v := range p.DefaultTags {
if !m.HasTag(k) {
m.AddTag(k, v)
}
}
}
}

756
plugins/parsers/influx/parser_test.go
View File

@ -1,294 +1,488 @@
package influx
import (
"fmt"
"io/ioutil"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/stretchr/testify/assert"
"github.com/influxdata/telegraf/metric"
"github.com/stretchr/testify/require"
)
var (
ms []telegraf.Metric
writer = ioutil.Discard
metrics500 []byte
exptime = time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC).UnixNano()
)
const (
validInflux = "cpu_load_short,cpu=cpu0 value=10 1257894000000000000\n"
negativeFloat = "cpu_load_short,cpu=cpu0 value=-13.4 1257894000000000000\n"
validInfluxNewline = "\ncpu_load_short,cpu=cpu0 value=10 1257894000000000000\n"
validInfluxNoNewline = "cpu_load_short,cpu=cpu0 value=10 1257894000000000000"
invalidInflux = "I don't think this is line protocol\n"
invalidInflux2 = "{\"a\": 5, \"b\": {\"c\": 6}}\n"
invalidInflux3 = `name text="unescaped "quote" ",value=1 1498077493081000000`
invalidInflux4 = `name text="unbalanced "quote" 1498077493081000000`
)
const influxMulti = `
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
`
const influxMultiSomeInvalid = `
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,cpu=cpu3, host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,cpu=cpu4 , usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
`
func TestParseValidInflux(t *testing.T) {
parser := InfluxParser{}
metrics, err := parser.Parse([]byte(validInflux))
assert.NoError(t, err)
assert.Len(t, metrics, 1)
assert.Equal(t, "cpu_load_short", metrics[0].Name())
assert.Equal(t, map[string]interface{}{
"value": float64(10),
}, metrics[0].Fields())
assert.Equal(t, map[string]string{
"cpu": "cpu0",
}, metrics[0].Tags())
assert.Equal(t, exptime, metrics[0].Time().UnixNano())
metrics, err = parser.Parse([]byte(validInfluxNewline))
assert.NoError(t, err)
assert.Len(t, metrics, 1)
assert.Equal(t, "cpu_load_short", metrics[0].Name())
assert.Equal(t, map[string]interface{}{
"value": float64(10),
}, metrics[0].Fields())
assert.Equal(t, map[string]string{
"cpu": "cpu0",
}, metrics[0].Tags())
assert.Equal(t, exptime, metrics[0].Time().UnixNano())
metrics, err = parser.Parse([]byte(validInfluxNoNewline))
assert.NoError(t, err)
assert.Len(t, metrics, 1)
assert.Equal(t, "cpu_load_short", metrics[0].Name())
assert.Equal(t, map[string]interface{}{
"value": float64(10),
}, metrics[0].Fields())
assert.Equal(t, map[string]string{
"cpu": "cpu0",
}, metrics[0].Tags())
assert.Equal(t, exptime, metrics[0].Time().UnixNano())
metrics, err = parser.Parse([]byte(negativeFloat))
assert.NoError(t, err)
assert.Len(t, metrics, 1)
assert.Equal(t, "cpu_load_short", metrics[0].Name())
assert.Equal(t, map[string]interface{}{
"value": float64(-13.4),
}, metrics[0].Fields())
assert.Equal(t, map[string]string{
"cpu": "cpu0",
}, metrics[0].Tags())
assert.Equal(t, exptime, metrics[0].Time().UnixNano())
}
func TestParseLineValidInflux(t *testing.T) {
parser := InfluxParser{}
metric, err := parser.ParseLine(validInflux)
assert.NoError(t, err)
assert.Equal(t, "cpu_load_short", metric.Name())
assert.Equal(t, map[string]interface{}{
"value": float64(10),
}, metric.Fields())
assert.Equal(t, map[string]string{
"cpu": "cpu0",
}, metric.Tags())
assert.Equal(t, exptime, metric.Time().UnixNano())
metric, err = parser.ParseLine(validInfluxNewline)
assert.NoError(t, err)
assert.Equal(t, "cpu_load_short", metric.Name())
assert.Equal(t, map[string]interface{}{
"value": float64(10),
}, metric.Fields())
assert.Equal(t, map[string]string{
"cpu": "cpu0",
}, metric.Tags())
assert.Equal(t, exptime, metric.Time().UnixNano())
}
func TestParseMultipleValid(t *testing.T) {
parser := InfluxParser{}
metrics, err := parser.Parse([]byte(influxMulti))
assert.NoError(t, err)
assert.Len(t, metrics, 7)
for _, metric := range metrics {
assert.Equal(t, "cpu", metric.Name())
assert.Equal(t, map[string]string{
"datacenter": "us-east",
"host": "foo",
}, metrics[0].Tags())
assert.Equal(t, map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
}, metrics[0].Fields())
}
}
func TestParseSomeValid(t *testing.T) {
parser := InfluxParser{}
metrics, err := parser.Parse([]byte(influxMultiSomeInvalid))
assert.Error(t, err)
assert.Len(t, metrics, 4)
for _, metric := range metrics {
assert.Equal(t, "cpu", metric.Name())
assert.Equal(t, map[string]string{
"datacenter": "us-east",
"host": "foo",
}, metrics[0].Tags())
assert.Equal(t, map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
}, metrics[0].Fields())
}
}
// Test that default tags are applied.
func TestParseDefaultTags(t *testing.T) {
parser := InfluxParser{
DefaultTags: map[string]string{
"tag": "default",
},
}
metrics, err := parser.Parse([]byte(influxMultiSomeInvalid))
assert.Error(t, err)
assert.Len(t, metrics, 4)
for _, metric := range metrics {
assert.Equal(t, "cpu", metric.Name())
assert.Equal(t, map[string]string{
"datacenter": "us-east",
"host": "foo",
"tag": "default",
}, metric.Tags())
assert.Equal(t, map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
}, metric.Fields())
}
}
// Verify that metric tags will override default tags
func TestParseDefaultTagsOverride(t *testing.T) {
parser := InfluxParser{
DefaultTags: map[string]string{
"host": "default",
},
}
metrics, err := parser.Parse([]byte(influxMultiSomeInvalid))
assert.Error(t, err)
assert.Len(t, metrics, 4)
for _, metric := range metrics {
assert.Equal(t, "cpu", metric.Name())
assert.Equal(t, map[string]string{
"datacenter": "us-east",
"host": "foo",
}, metrics[0].Tags())
assert.Equal(t, map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
}, metrics[0].Fields())
}
}
func TestParseInvalidInflux(t *testing.T) {
parser := InfluxParser{}
_, err := parser.Parse([]byte(invalidInflux))
assert.Error(t, err)
_, err = parser.Parse([]byte(invalidInflux2))
assert.Error(t, err)
_, err = parser.Parse([]byte(invalidInflux3))
assert.Error(t, err)
fmt.Printf("%+v\n", err) // output for debug
_, err = parser.Parse([]byte(invalidInflux4))
assert.Error(t, err)
_, err = parser.ParseLine(invalidInflux)
assert.Error(t, err)
_, err = parser.ParseLine(invalidInflux2)
assert.Error(t, err)
_, err = parser.ParseLine(invalidInflux3)
assert.Error(t, err)
_, err = parser.ParseLine(invalidInflux4)
assert.Error(t, err)
}
func BenchmarkSingle(b *testing.B) {
parser := InfluxParser{}
b.ResetTimer()
for n := 0; n < b.N; n++ {
_, err := parser.Parse([]byte("cpu value=42\n"))
if err != nil {
panic(err)
}
}
}
func BenchmarkParse(b *testing.B) {
var err error
parser := InfluxParser{}
for n := 0; n < b.N; n++ {
// parse:
ms, err = parser.Parse(metrics500)
if err != nil {
panic(err)
}
if len(ms) != 500 {
panic("500 metrics not parsed!!")
}
}
}
func BenchmarkParseAddTagWrite(b *testing.B) {
var err error
parser := InfluxParser{}
for n := 0; n < b.N; n++ {
ms, err = parser.Parse(metrics500)
if err != nil {
panic(err)
}
if len(ms) != 500 {
panic("500 metrics not parsed!!")
}
for _, tmp := range ms {
tmp.AddTag("host", "localhost")
writer.Write(tmp.Serialize())
}
}
}
func init() {
var err error
metrics500, err = ioutil.ReadFile("500.metrics")
func Metric(v telegraf.Metric, err error) telegraf.Metric {
if err != nil {
panic(err)
}
return v
}
var DefaultTime = func() time.Time {
return time.Unix(42, 0)
}
var ptests = []struct {
name string
input []byte
metrics []telegraf.Metric
err error
}{
{
name: "minimal",
input: []byte("cpu value=42 0"),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
},
err: nil,
},
{
name: "minimal with newline",
input: []byte("cpu value=42 0\n"),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
},
err: nil,
},
{
name: "measurement escape space",
input: []byte(`c\ pu value=42`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"c pu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "measurement escape comma",
input: []byte(`c\,pu value=42`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"c,pu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "tags",
input: []byte(`cpu,cpu=cpu0,host=localhost value=42`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{
"cpu": "cpu0",
"host": "localhost",
},
map[string]interface{}{
"value": 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "tags escape unescapable",
input: []byte(`cpu,ho\st=localhost value=42`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{
`ho\st`: "localhost",
},
map[string]interface{}{
"value": 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "tags escape equals",
input: []byte(`cpu,ho\=st=localhost value=42`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{
"ho=st": "localhost",
},
map[string]interface{}{
"value": 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "tags escape comma",
input: []byte(`cpu,ho\,st=localhost value=42`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{
"ho,st": "localhost",
},
map[string]interface{}{
"value": 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "field key escape not escapable",
input: []byte(`cpu va\lue=42`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
`va\lue`: 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "field key escape equals",
input: []byte(`cpu va\=lue=42`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
`va=lue`: 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "field key escape comma",
input: []byte(`cpu va\,lue=42`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
`va,lue`: 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "field key escape space",
input: []byte(`cpu va\ lue=42`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
`va lue`: 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "field int",
input: []byte("cpu value=42i"),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "field boolean",
input: []byte("cpu value=true"),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": true,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "field string",
input: []byte(`cpu value="42"`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": "42",
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "field string escape quote",
input: []byte(`cpu value="how\"dy"`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
`value`: `how"dy`,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "field string escape backslash",
input: []byte(`cpu value="how\\dy"`),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
`value`: `how\dy`,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "default timestamp",
input: []byte("cpu value=42"),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "multiple lines",
input: []byte("cpu value=42\ncpu value=42"),
metrics: []telegraf.Metric{
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(42, 0),
),
),
Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(42, 0),
),
),
},
err: nil,
},
{
name: "invalid measurement only",
input: []byte("cpu"),
metrics: nil,
err: &ParseError{
Offset: 3,
msg: ErrFieldParse.Error(),
buf: "cpu",
},
},
{
name: "procstat",
input: []byte("procstat,exe=bash,process_name=bash voluntary_context_switches=42i,memory_rss=5103616i,rlimit_memory_data_hard=2147483647i,cpu_time_user=0.02,rlimit_file_locks_soft=2147483647i,pid=29417i,cpu_time_nice=0,rlimit_memory_locked_soft=65536i,read_count=259i,rlimit_memory_vms_hard=2147483647i,memory_swap=0i,rlimit_num_fds_soft=1024i,rlimit_nice_priority_hard=0i,cpu_time_soft_irq=0,cpu_time=0i,rlimit_memory_locked_hard=65536i,realtime_priority=0i,signals_pending=0i,nice_priority=20i,cpu_time_idle=0,memory_stack=139264i,memory_locked=0i,rlimit_memory_stack_soft=8388608i,cpu_time_iowait=0,cpu_time_guest=0,cpu_time_guest_nice=0,rlimit_memory_data_soft=2147483647i,read_bytes=0i,rlimit_cpu_time_soft=2147483647i,involuntary_context_switches=2i,write_bytes=106496i,cpu_time_system=0,cpu_time_irq=0,cpu_usage=0,memory_vms=21659648i,memory_data=1576960i,rlimit_memory_stack_hard=2147483647i,num_threads=1i,cpu_time_stolen=0,rlimit_memory_rss_soft=2147483647i,rlimit_realtime_priority_soft=0i,num_fds=4i,write_count=35i,rlimit_signals_pending_soft=78994i,cpu_time_steal=0,rlimit_num_fds_hard=4096i,rlimit_file_locks_hard=2147483647i,rlimit_cpu_time_hard=2147483647i,rlimit_signals_pending_hard=78994i,rlimit_nice_priority_soft=0i,rlimit_memory_rss_hard=2147483647i,rlimit_memory_vms_soft=2147483647i,rlimit_realtime_priority_hard=0i 1517620624000000000"),
metrics: []telegraf.Metric{
Metric(
metric.New(
"procstat",
map[string]string{
"exe": "bash",
"process_name": "bash",
},
map[string]interface{}{
"cpu_time": 0,
"cpu_time_guest": float64(0),
"cpu_time_guest_nice": float64(0),
"cpu_time_idle": float64(0),
"cpu_time_iowait": float64(0),
"cpu_time_irq": float64(0),
"cpu_time_nice": float64(0),
"cpu_time_soft_irq": float64(0),
"cpu_time_steal": float64(0),
"cpu_time_stolen": float64(0),
"cpu_time_system": float64(0),
"cpu_time_user": float64(0.02),
"cpu_usage": float64(0),
"involuntary_context_switches": 2,
"memory_data": 1576960,
"memory_locked": 0,
"memory_rss": 5103616,
"memory_stack": 139264,
"memory_swap": 0,
"memory_vms": 21659648,
"nice_priority": 20,
"num_fds": 4,
"num_threads": 1,
"pid": 29417,
"read_bytes": 0,
"read_count": 259,
"realtime_priority": 0,
"rlimit_cpu_time_hard": 2147483647,
"rlimit_cpu_time_soft": 2147483647,
"rlimit_file_locks_hard": 2147483647,
"rlimit_file_locks_soft": 2147483647,
"rlimit_memory_data_hard": 2147483647,
"rlimit_memory_data_soft": 2147483647,
"rlimit_memory_locked_hard": 65536,
"rlimit_memory_locked_soft": 65536,
"rlimit_memory_rss_hard": 2147483647,
"rlimit_memory_rss_soft": 2147483647,
"rlimit_memory_stack_hard": 2147483647,
"rlimit_memory_stack_soft": 8388608,
"rlimit_memory_vms_hard": 2147483647,
"rlimit_memory_vms_soft": 2147483647,
"rlimit_nice_priority_hard": 0,
"rlimit_nice_priority_soft": 0,
"rlimit_num_fds_hard": 4096,
"rlimit_num_fds_soft": 1024,
"rlimit_realtime_priority_hard": 0,
"rlimit_realtime_priority_soft": 0,
"rlimit_signals_pending_hard": 78994,
"rlimit_signals_pending_soft": 78994,
"signals_pending": 0,
"voluntary_context_switches": 42,
"write_bytes": 106496,
"write_count": 35,
},
time.Unix(0, 1517620624000000000),
),
),
},
err: nil,
},
}
func TestParser(t *testing.T) {
for _, tt := range ptests {
t.Run(tt.name, func(t *testing.T) {
handler := NewMetricHandler()
handler.SetTimeFunc(DefaultTime)
parser := NewParser(handler)
metrics, err := parser.Parse(tt.input)
require.Equal(t, tt.err, err)
require.Equal(t, len(tt.metrics), len(metrics))
for i, expected := range tt.metrics {
require.Equal(t, expected.Name(), metrics[i].Name())
require.Equal(t, expected.Tags(), metrics[i].Tags())
require.Equal(t, expected.Fields(), metrics[i].Fields())
require.Equal(t, expected.Time(), metrics[i].Time())
}
})
}
}
func BenchmarkParser(b *testing.B) {
for _, tt := range ptests {
b.Run(tt.name, func(b *testing.B) {
handler := NewMetricHandler()
parser := NewParser(handler)
for n := 0; n < b.N; n++ {
metrics, err := parser.Parse(tt.input)
_ = err
_ = metrics
}
})
}
}

31
plugins/parsers/nagios/parser.go
View File

@ -2,6 +2,7 @@ package nagios
import (
"regexp"
"strconv"
"strings"
"time"
@ -72,23 +73,41 @@ func (p *NagiosParser) Parse(buf []byte) ([]telegraf.Metric, error) {
fieldName := string(perf[0][1])
tags := make(map[string]string)
if perf[0][3] != nil {
tags["unit"] = string(perf[0][3])
str := string(perf[0][3])
if str != "" {
tags["unit"] = str
}
}
fields := make(map[string]interface{})
fields["value"] = perf[0][2]
f, err := strconv.ParseFloat(string(perf[0][2]), 64)
if err == nil {
fields["value"] = f
}
// TODO should we set empty field
// if metric if there is no data ?
if perf[0][4] != nil {
fields["warning"] = perf[0][4]
f, err := strconv.ParseFloat(string(perf[0][4]), 64)
if err == nil {
fields["warning"] = f
}
}
if perf[0][5] != nil {
fields["critical"] = perf[0][5]
f, err := strconv.ParseFloat(string(perf[0][5]), 64)
if err == nil {
fields["critical"] = f
}
}
if perf[0][6] != nil {
fields["min"] = perf[0][6]
f, err := strconv.ParseFloat(string(perf[0][6]), 64)
if err == nil {
fields["min"] = f
}
}
if perf[0][7] != nil {
fields["max"] = perf[0][7]
f, err := strconv.ParseFloat(string(perf[0][7]), 64)
if err == nil {
fields["max"] = f
}
}
// Create metric
metric, err := metric.New(fieldName, tags, fields, time.Now().UTC())

3
plugins/parsers/registry.go
View File

@ -134,7 +134,8 @@ func NewNagiosParser() (Parser, error) {
}
func NewInfluxParser() (Parser, error) {
return &influx.InfluxParser{}, nil
handler := influx.NewMetricHandler()
return influx.NewParser(handler), nil
}
func NewGraphiteParser(

4
plugins/processors/override/override.go
View File

@ -37,10 +37,10 @@ func (p *Override) Apply(in ...telegraf.Metric) []telegraf.Metric {
metric.SetName(p.NameOverride)
}
if len(p.NamePrefix) > 0 {
metric.SetPrefix(p.NamePrefix)
metric.AddPrefix(p.NamePrefix)
}
if len(p.NameSuffix) > 0 {
metric.SetSuffix(p.NameSuffix)
metric.AddSuffix(p.NameSuffix)
}
for key, value := range p.Tags {
metric.AddTag(key, value)

13
plugins/processors/printer/printer.go
View File

@ -5,9 +5,12 @@ import (
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/processors"
"github.com/influxdata/telegraf/plugins/serializers"
"github.com/influxdata/telegraf/plugins/serializers/influx"
)
type Printer struct {
serializer serializers.Serializer
}
var sampleConfig = `
@ -23,13 +26,19 @@ func (p *Printer) Description() string {
func (p *Printer) Apply(in ...telegraf.Metric) []telegraf.Metric {
for _, metric := range in {
fmt.Println(metric.String())
octets, err := p.serializer.Serialize(metric)
if err != nil {
continue
}
fmt.Println(octets)
}
return in
}
func init() {
processors.Add("printer", func() telegraf.Processor {
return &Printer{}
return &Printer{
serializer: influx.NewSerializer(),
}
})
}

2
plugins/serializers/graphite/graphite.go
View File

@ -35,7 +35,7 @@ func (s *GraphiteSerializer) Serialize(metric telegraf.Metric) ([]byte, error) {
out := []byte{}
// Convert UnixNano to Unix timestamps
timestamp := metric.UnixNano() / 1000000000
timestamp := metric.Time().UnixNano() / 1000000000
bucket := SerializeBucketName(metric.Name(), metric.Tags(), s.Template, s.Prefix)
if bucket == "" {

52
plugins/serializers/influx/escape.go Normal file
View File

@ -0,0 +1,52 @@
package influx
import "strings"
const (
escapes = " ,="
nameEscapes = " ,"
stringFieldEscapes = `\"`
)
var (
escaper = strings.NewReplacer(
`,`, `\,`,
`"`, `\"`, // ???
` `, `\ `,
`=`, `\=`,
)
nameEscaper = strings.NewReplacer(
`,`, `\,`,
` `, `\ `,
)
stringFieldEscaper = strings.NewReplacer(
`"`, `\"`,
`\`, `\\`,
)
)
func escape(s string) string {
if strings.ContainsAny(s, escapes) {
return escaper.Replace(s)
} else {
return s
}
}
func nameEscape(s string) string {
if strings.ContainsAny(s, nameEscapes) {
return nameEscaper.Replace(s)
} else {
return s
}
}
func stringFieldEscape(s string) string {
if strings.ContainsAny(s, stringFieldEscapes) {
return stringFieldEscaper.Replace(s)
} else {
return s
}
}

271
plugins/serializers/influx/influx.go
View File

@ -1,12 +1,277 @@
package influx
import (
"bytes"
"errors"
"io"
"math"
"sort"
"strconv"
"github.com/influxdata/telegraf"
)
type InfluxSerializer struct {
const MaxInt = int(^uint(0) >> 1)
type FieldSortOrder int
const (
NoSortFields FieldSortOrder = iota
SortFields
)
var (
ErrNeedMoreSpace = errors.New("need more space")
ErrInvalidName = errors.New("invalid name")
ErrInvalidFieldKey = errors.New("invalid field key")
ErrInvalidFieldType = errors.New("invalid field type")
ErrFieldIsNaN = errors.New("is NaN")
ErrFieldIsInf = errors.New("is Inf")
ErrNoFields = errors.New("no fields")
)
// Serializer is a serializer for line protocol.
type Serializer struct {
maxLineBytes int
bytesWritten int
fieldSortOrder FieldSortOrder
buf bytes.Buffer
header []byte
footer []byte
pair []byte
}
func (s *InfluxSerializer) Serialize(m telegraf.Metric) ([]byte, error) {
return m.Serialize(), nil
func NewSerializer() *Serializer {
serializer := &Serializer{
fieldSortOrder: NoSortFields,
header: make([]byte, 0, 50),
footer: make([]byte, 0, 21),
pair: make([]byte, 0, 50),
}
return serializer
}
func (s *Serializer) SetMaxLineBytes(bytes int) {
s.maxLineBytes = bytes
}
func (s *Serializer) SetFieldSortOrder(order FieldSortOrder) {
s.fieldSortOrder = order
}
// Serialize writes the telegraf.Metric to a byte slice. May produce multiple
// lines of output if longer than maximum line length. Lines are terminated
// with a newline (LF) char.
func (s *Serializer) Serialize(m telegraf.Metric) ([]byte, error) {
s.buf.Reset()
err := s.writeMetric(&s.buf, m)
if err != nil {
return nil, err
}
out := make([]byte, s.buf.Len())
copy(out, s.buf.Bytes())
return out, nil
}
func (s *Serializer) Write(w io.Writer, m telegraf.Metric) (int, error) {
err := s.writeMetric(w, m)
return s.bytesWritten, err
}
func (s *Serializer) writeString(w io.Writer, str string) error {
n, err := io.WriteString(w, str)
s.bytesWritten += n
return err
}
func (s *Serializer) write(w io.Writer, b []byte) error {
n, err := w.Write(b)
s.bytesWritten += n
return err
}
func (s *Serializer) buildHeader(m telegraf.Metric) error {
s.header = s.header[:0]
name := nameEscape(m.Name())
if name == "" {
return ErrInvalidName
}
s.header = append(s.header, name...)
for _, tag := range m.TagList() {
key := escape(tag.Key)
value := escape(tag.Value)
// Some keys and values are not encodeable as line protocol, such as
// those with a trailing '\' or empty strings.
if key == "" || value == "" {
continue
}
s.header = append(s.header, ',')
s.header = append(s.header, key...)
s.header = append(s.header, '=')
s.header = append(s.header, value...)
}
s.header = append(s.header, ' ')
return nil
}
func (s *Serializer) buildFooter(m telegraf.Metric) {
s.footer = s.footer[:0]
s.footer = append(s.footer, ' ')
s.footer = strconv.AppendInt(s.footer, m.Time().UnixNano(), 10)
s.footer = append(s.footer, '\n')
}
func (s *Serializer) buildFieldPair(key string, value interface{}) error {
s.pair = s.pair[:0]
key = escape(key)
// Some keys are not encodeable as line protocol, such as those with a
// trailing '\' or empty strings.
if key == "" {
return ErrInvalidFieldKey
}
s.pair = append(s.pair, key...)
s.pair = append(s.pair, '=')
pair, err := appendFieldValue(s.pair, value)
if err != nil {
return err
}
s.pair = pair
return nil
}
func (s *Serializer) writeMetric(w io.Writer, m telegraf.Metric) error {
var err error
err = s.buildHeader(m)
if err != nil {
return err
}
s.buildFooter(m)
if s.fieldSortOrder == SortFields {
sort.Slice(m.FieldList(), func(i, j int) bool {
return m.FieldList()[i].Key < m.FieldList()[j].Key
})
}
pairsLen := 0
firstField := true
for _, field := range m.FieldList() {
err = s.buildFieldPair(field.Key, field.Value)
if err != nil {
continue
}
bytesNeeded := len(s.header) + pairsLen + len(s.pair) + len(s.footer)
// Additional length needed for field separator `,`
if !firstField {
bytesNeeded += 1
}
if s.maxLineBytes > 0 && bytesNeeded > s.maxLineBytes {
// Need at least one field per line
if firstField {
return ErrNeedMoreSpace
}
err = s.write(w, s.footer)
if err != nil {
return err
}
bytesNeeded = len(s.header) + len(s.pair) + len(s.footer)
if s.maxLineBytes > 0 && bytesNeeded > s.maxLineBytes {
return ErrNeedMoreSpace
}
err = s.write(w, s.header)
if err != nil {
return err
}
s.write(w, s.pair)
pairsLen += len(s.pair)
firstField = false
continue
}
if firstField {
err = s.write(w, s.header)
if err != nil {
return err
}
} else {
err = s.writeString(w, ",")
if err != nil {
return err
}
}
s.write(w, s.pair)
pairsLen += len(s.pair)
firstField = false
}
if firstField {
return ErrNoFields
}
return s.write(w, s.footer)
}
func appendFieldValue(buf []byte, value interface{}) ([]byte, error) {
switch v := value.(type) {
case int64:
return appendIntField(buf, v), nil
case float64:
if math.IsNaN(v) {
return nil, ErrFieldIsNaN
}
if math.IsInf(v, 0) {
return nil, ErrFieldIsInf
}
return appendFloatField(buf, v), nil
case string:
return appendStringField(buf, v), nil
case bool:
return appendBoolField(buf, v), nil
}
return buf, ErrInvalidFieldType
}
func appendIntField(buf []byte, value int64) []byte {
return append(strconv.AppendInt(buf, value, 10), 'i')
}
func appendFloatField(buf []byte, value float64) []byte {
return strconv.AppendFloat(buf, value, 'g', -1, 64)
}
func appendBoolField(buf []byte, value bool) []byte {
return strconv.AppendBool(buf, value)
}
func appendStringField(buf []byte, value string) []byte {
buf = append(buf, '"')
buf = append(buf, stringFieldEscape(value)...)
buf = append(buf, '"')
return buf
}

370
plugins/serializers/influx/influx_test.go
View File

@ -1,72 +1,330 @@
package influx
import (
"fmt"
"strings"
"math"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
"github.com/stretchr/testify/require"
)
func TestSerializeMetricFloat(t *testing.T) {
now := time.Now()
tags := map[string]string{
"cpu": "cpu0",
func MustMetric(v telegraf.Metric, err error) telegraf.Metric {
if err != nil {
panic(err)
}
fields := map[string]interface{}{
"usage_idle": float64(91.5),
}
m, err := metric.New("cpu", tags, fields, now)
assert.NoError(t, err)
s := InfluxSerializer{}
buf, _ := s.Serialize(m)
mS := strings.Split(strings.TrimSpace(string(buf)), "\n")
assert.NoError(t, err)
expS := []string{fmt.Sprintf("cpu,cpu=cpu0 usage_idle=91.5 %d", now.UnixNano())}
assert.Equal(t, expS, mS)
return v
}
func TestSerializeMetricInt(t *testing.T) {
now := time.Now()
tags := map[string]string{
"cpu": "cpu0",
}
fields := map[string]interface{}{
"usage_idle": int64(90),
}
m, err := metric.New("cpu", tags, fields, now)
assert.NoError(t, err)
s := InfluxSerializer{}
buf, _ := s.Serialize(m)
mS := strings.Split(strings.TrimSpace(string(buf)), "\n")
assert.NoError(t, err)
expS := []string{fmt.Sprintf("cpu,cpu=cpu0 usage_idle=90i %d", now.UnixNano())}
assert.Equal(t, expS, mS)
var tests = []struct {
name string
maxBytes int
input telegraf.Metric
output []byte
err error
}{
{
name: "minimal",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=42 0\n"),
},
{
name: "multiple tags",
input: MustMetric(
metric.New(
"cpu",
map[string]string{
"host": "localhost",
"cpu": "CPU0",
},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
output: []byte("cpu,cpu=CPU0,host=localhost value=42 0\n"),
},
{
name: "multiple fields",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"x": 42.0,
"y": 42.0,
},
time.Unix(0, 0),
),
),
output: []byte("cpu x=42,y=42 0\n"),
},
{
name: "float NaN",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"x": math.NaN(),
"y": 42,
},
time.Unix(0, 0),
),
),
output: []byte("cpu y=42i 0\n"),
},
{
name: "float NaN only",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": math.NaN(),
},
time.Unix(0, 0),
),
),
err: ErrNoFields,
},
{
name: "float Inf",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": math.Inf(1),
"y": 42,
},
time.Unix(0, 0),
),
),
output: []byte("cpu y=42i 0\n"),
},
{
name: "integer field",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42,
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=42i 0\n"),
},
{
name: "bool field",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": true,
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=true 0\n"),
},
{
name: "string field",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": "howdy",
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=\"howdy\" 0\n"),
},
{
name: "timestamp",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(1519194109, 42),
),
),
output: []byte("cpu value=42 1519194109000000042\n"),
},
{
name: "split fields exact",
maxBytes: 33,
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"abc": 123,
"def": 456,
},
time.Unix(1519194109, 42),
),
),
output: []byte("cpu abc=123i 1519194109000000042\ncpu def=456i 1519194109000000042\n"),
},
{
name: "split fields extra",
maxBytes: 34,
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"abc": 123,
"def": 456,
},
time.Unix(1519194109, 42),
),
),
output: []byte("cpu abc=123i 1519194109000000042\ncpu def=456i 1519194109000000042\n"),
},
{
name: "need more space",
maxBytes: 32,
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"abc": 123,
"def": 456,
},
time.Unix(1519194109, 42),
),
),
output: nil,
err: ErrNeedMoreSpace,
},
{
name: "no fields",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{},
time.Unix(0, 0),
),
),
err: ErrNoFields,
},
{
name: "procstat",
input: MustMetric(
metric.New(
"procstat",
map[string]string{
"exe": "bash",
"process_name": "bash",
},
map[string]interface{}{
"cpu_time": 0,
"cpu_time_guest": float64(0),
"cpu_time_guest_nice": float64(0),
"cpu_time_idle": float64(0),
"cpu_time_iowait": float64(0),
"cpu_time_irq": float64(0),
"cpu_time_nice": float64(0),
"cpu_time_soft_irq": float64(0),
"cpu_time_steal": float64(0),
"cpu_time_stolen": float64(0),
"cpu_time_system": float64(0),
"cpu_time_user": float64(0.02),
"cpu_usage": float64(0),
"involuntary_context_switches": 2,
"memory_data": 1576960,
"memory_locked": 0,
"memory_rss": 5103616,
"memory_stack": 139264,
"memory_swap": 0,
"memory_vms": 21659648,
"nice_priority": 20,
"num_fds": 4,
"num_threads": 1,
"pid": 29417,
"read_bytes": 0,
"read_count": 259,
"realtime_priority": 0,
"rlimit_cpu_time_hard": 2147483647,
"rlimit_cpu_time_soft": 2147483647,
"rlimit_file_locks_hard": 2147483647,
"rlimit_file_locks_soft": 2147483647,
"rlimit_memory_data_hard": 2147483647,
"rlimit_memory_data_soft": 2147483647,
"rlimit_memory_locked_hard": 65536,
"rlimit_memory_locked_soft": 65536,
"rlimit_memory_rss_hard": 2147483647,
"rlimit_memory_rss_soft": 2147483647,
"rlimit_memory_stack_hard": 2147483647,
"rlimit_memory_stack_soft": 8388608,
"rlimit_memory_vms_hard": 2147483647,
"rlimit_memory_vms_soft": 2147483647,
"rlimit_nice_priority_hard": 0,
"rlimit_nice_priority_soft": 0,
"rlimit_num_fds_hard": 4096,
"rlimit_num_fds_soft": 1024,
"rlimit_realtime_priority_hard": 0,
"rlimit_realtime_priority_soft": 0,
"rlimit_signals_pending_hard": 78994,
"rlimit_signals_pending_soft": 78994,
"signals_pending": 0,
"voluntary_context_switches": 42,
"write_bytes": 106496,
"write_count": 35,
},
time.Unix(0, 1517620624000000000),
),
),
output: []byte("procstat,exe=bash,process_name=bash cpu_time=0i,cpu_time_guest=0,cpu_time_guest_nice=0,cpu_time_idle=0,cpu_time_iowait=0,cpu_time_irq=0,cpu_time_nice=0,cpu_time_soft_irq=0,cpu_time_steal=0,cpu_time_stolen=0,cpu_time_system=0,cpu_time_user=0.02,cpu_usage=0,involuntary_context_switches=2i,memory_data=1576960i,memory_locked=0i,memory_rss=5103616i,memory_stack=139264i,memory_swap=0i,memory_vms=21659648i,nice_priority=20i,num_fds=4i,num_threads=1i,pid=29417i,read_bytes=0i,read_count=259i,realtime_priority=0i,rlimit_cpu_time_hard=2147483647i,rlimit_cpu_time_soft=2147483647i,rlimit_file_locks_hard=2147483647i,rlimit_file_locks_soft=2147483647i,rlimit_memory_data_hard=2147483647i,rlimit_memory_data_soft=2147483647i,rlimit_memory_locked_hard=65536i,rlimit_memory_locked_soft=65536i,rlimit_memory_rss_hard=2147483647i,rlimit_memory_rss_soft=2147483647i,rlimit_memory_stack_hard=2147483647i,rlimit_memory_stack_soft=8388608i,rlimit_memory_vms_hard=2147483647i,rlimit_memory_vms_soft=2147483647i,rlimit_nice_priority_hard=0i,rlimit_nice_priority_soft=0i,rlimit_num_fds_hard=4096i,rlimit_num_fds_soft=1024i,rlimit_realtime_priority_hard=0i,rlimit_realtime_priority_soft=0i,rlimit_signals_pending_hard=78994i,rlimit_signals_pending_soft=78994i,signals_pending=0i,voluntary_context_switches=42i,write_bytes=106496i,write_count=35i 1517620624000000000\n"),
},
}
func TestSerializeMetricString(t *testing.T) {
now := time.Now()
tags := map[string]string{
"cpu": "cpu0",
func TestSerializer(t *testing.T) {
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
serializer := NewSerializer()
serializer.SetMaxLineBytes(tt.maxBytes)
serializer.SetFieldSortOrder(SortFields)
output, err := serializer.Serialize(tt.input)
require.Equal(t, tt.err, err)
require.Equal(t, string(tt.output), string(output))
})
}
}
func BenchmarkSerializer(b *testing.B) {
for _, tt := range tests {
b.Run(tt.name, func(b *testing.B) {
serializer := NewSerializer()
serializer.SetMaxLineBytes(tt.maxBytes)
for n := 0; n < b.N; n++ {
output, err := serializer.Serialize(tt.input)
_ = err
_ = output
}
})
}
fields := map[string]interface{}{
"usage_idle": "foobar",
}
m, err := metric.New("cpu", tags, fields, now)
assert.NoError(t, err)
s := InfluxSerializer{}
buf, _ := s.Serialize(m)
mS := strings.Split(strings.TrimSpace(string(buf)), "\n")
assert.NoError(t, err)
expS := []string{fmt.Sprintf("cpu,cpu=cpu0 usage_idle=\"foobar\" %d", now.UnixNano())}
assert.Equal(t, expS, mS)
}

58
plugins/serializers/influx/reader.go Normal file
View File

@ -0,0 +1,58 @@
package influx
import (
"bytes"
"io"
"github.com/influxdata/telegraf"
)
// reader is an io.Reader for line protocol.
type reader struct {
metrics []telegraf.Metric
serializer *Serializer
offset int
buf *bytes.Buffer
}
// NewReader creates a new reader over the given metrics.
func NewReader(metrics []telegraf.Metric, serializer *Serializer) io.Reader {
return &reader{
metrics: metrics,
serializer: serializer,
offset: 0,
buf: bytes.NewBuffer(make([]byte, 0, serializer.maxLineBytes)),
}
}
// SetMetrics changes the metrics to be read.
func (r *reader) SetMetrics(metrics []telegraf.Metric) {
r.metrics = metrics
r.offset = 0
r.buf.Reset()
}
// Read reads up to len(p) bytes of the current metric into p, each call will
// only serialize at most one metric so the number of bytes read may be less
// than p. Subsequent calls to Read will read the next metric until all are
// emitted. If a metric cannot be serialized, an error will be returned, you
// may resume with the next metric by calling Read again. When all metrics
// are emitted the err is io.EOF.
func (r *reader) Read(p []byte) (int, error) {
if r.buf.Len() > 0 {
return r.buf.Read(p)
}
if r.offset >= len(r.metrics) {
return 0, io.EOF
}
_, err := r.serializer.Write(r.buf, r.metrics[r.offset])
r.offset += 1
if err != nil {
r.buf.Reset()
return 0, err
}
return r.buf.Read(p)
}

135
plugins/serializers/influx/reader_test.go Normal file
View File

@ -0,0 +1,135 @@
package influx
import (
"bytes"
"io"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
"github.com/stretchr/testify/require"
)
func TestReader(t *testing.T) {
tests := []struct {
name string
maxLineBytes int
bufferSize int
input []telegraf.Metric
expected []byte
}{
{
name: "minimal",
maxLineBytes: 4096,
bufferSize: 20,
input: []telegraf.Metric{
MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
},
expected: []byte("cpu value=42 0\n"),
},
{
name: "multiple lines",
maxLineBytes: 4096,
bufferSize: 20,
input: []telegraf.Metric{
MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
},
expected: []byte("cpu value=42 0\ncpu value=42 0\n"),
},
{
name: "exact fit",
maxLineBytes: 4096,
bufferSize: 15,
input: []telegraf.Metric{
MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
},
expected: []byte("cpu value=42 0\n"),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
serializer := NewSerializer()
serializer.SetMaxLineBytes(tt.maxLineBytes)
serializer.SetFieldSortOrder(SortFields)
reader := NewReader(tt.input, serializer)
data := new(bytes.Buffer)
readbuf := make([]byte, tt.bufferSize)
total := 0
for {
n, err := reader.Read(readbuf)
total += n
if err == io.EOF {
break
}
data.Write(readbuf[:n])
require.NoError(t, err)
}
require.Equal(t, tt.expected, data.Bytes())
require.Equal(t, len(tt.expected), total)
})
}
}
func TestZeroLengthBufferNoError(t *testing.T) {
m := MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
)
serializer := NewSerializer()
serializer.SetFieldSortOrder(SortFields)
reader := NewReader([]telegraf.Metric{m}, serializer)
readbuf := make([]byte, 0)
n, err := reader.Read(readbuf)
require.NoError(t, err)
require.Equal(t, 0, n)
}

2
plugins/serializers/json/json.go
View File

@ -22,7 +22,7 @@ func (s *JsonSerializer) Serialize(metric telegraf.Metric) ([]byte, error) {
m["tags"] = metric.Tags()
m["fields"] = metric.Fields()
m["name"] = metric.Name()
m["timestamp"] = metric.UnixNano() / units_nanoseconds
m["timestamp"] = metric.Time().UnixNano() / units_nanoseconds
serialized, err := ejson.Marshal(m)
if err != nil {
return []byte{}, err

22
plugins/serializers/registry.go
View File

@ -33,6 +33,13 @@ type Config struct {
// Dataformat can be one of: influx, graphite, or json
DataFormat string
// Maximum line length in bytes; influx format only
InfluxMaxLineBytes int
// Sort field keys, set to true only when debugging as it less performant
// than unsorted fields; influx format only
InfluxSortFields bool
// Prefix to add to all measurements, only supports Graphite
Prefix string
@ -50,7 +57,7 @@ func NewSerializer(config *Config) (Serializer, error) {
var serializer Serializer
switch config.DataFormat {
case "influx":
serializer, err = NewInfluxSerializer()
serializer, err = NewInfluxSerializerConfig(config)
case "graphite":
serializer, err = NewGraphiteSerializer(config.Prefix, config.Template)
case "json":
@ -65,8 +72,19 @@ func NewJsonSerializer(timestampUnits time.Duration) (Serializer, error) {
return &json.JsonSerializer{TimestampUnits: timestampUnits}, nil
}
func NewInfluxSerializerConfig(config *Config) (Serializer, error) {
var sort influx.FieldSortOrder
if config.InfluxSortFields {
sort = influx.SortFields
}
s := influx.NewSerializer()
s.SetMaxLineBytes(config.InfluxMaxLineBytes)
s.SetFieldSortOrder(sort)
return s, nil
}
func NewInfluxSerializer() (Serializer, error) {
return &influx.InfluxSerializer{}, nil
return influx.NewSerializer(), nil
}
func NewGraphiteSerializer(prefix, template string) (Serializer, error) {