Ensure prometheus metrics have same set of labels (#2857)
This commit is contained in:
Daniel Nelson
GitHub
parent
e2ab598a4a
commit
6ebeeef452
|
|
@ -6,6 +6,8 @@ import (
|
|||
"log"
|
||||
"net/http"
|
||||
"regexp"
|
||||
"sort"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
|
|
@ -17,19 +19,40 @@ import (
|
|||
|
||||
var invalidNameCharRE = regexp.MustCompile(`[^a-zA-Z0-9_]`)
|
||||
|
||||
type MetricWithExpiration struct {
|
||||
Metric prometheus.Metric
|
||||
// SampleID uniquely identifies a Sample
|
||||
type SampleID string
|
||||
|
||||
// Sample represents the current value of a series.
|
||||
type Sample struct {
|
||||
// Labels are the Prometheus labels.
|
||||
Labels map[string]string
|
||||
// Value is the value in the Prometheus output.
|
||||
Value float64
|
||||
// Expiration is the deadline that this Sample is valid until.
|
||||
Expiration time.Time
|
||||
}
|
||||
|
||||
// MetricFamily contains the data required to build valid prometheus Metrics.
|
||||
type MetricFamily struct {
|
||||
// Samples are the Sample belonging to this MetricFamily.
|
||||
Samples map[SampleID]*Sample
|
||||
// Type of the Value.
|
||||
ValueType prometheus.ValueType
|
||||
// LabelSet is the label counts for all Samples.
|
||||
LabelSet map[string]int
|
||||
}
|
||||
|
||||
type PrometheusClient struct {
|
||||
Listen string
|
||||
ExpirationInterval internal.Duration `toml:"expiration_interval"`
|
||||
server *http.Server
|
||||
|
||||
metrics map[string]*MetricWithExpiration
|
||||
server *http.Server
|
||||
|
||||
sync.Mutex
|
||||
// fam is the non-expired MetricFamily by Prometheus metric name.
|
||||
fam map[string]*MetricFamily
|
||||
// now returns the current time.
|
||||
now func() time.Time
|
||||
}
|
||||
|
||||
var sampleConfig = `
|
||||
|
|
@ -41,7 +64,6 @@ var sampleConfig = `
|
|||
`
|
||||
|
||||
func (p *PrometheusClient) Start() error {
|
||||
p.metrics = make(map[string]*MetricWithExpiration)
|
||||
prometheus.Register(p)
|
||||
|
||||
if p.Listen == "" {
|
||||
|
|
@ -88,96 +110,153 @@ func (p *PrometheusClient) Describe(ch chan<- *prometheus.Desc) {
|
|||
prometheus.NewGauge(prometheus.GaugeOpts{Name: "Dummy", Help: "Dummy"}).Describe(ch)
|
||||
}
|
||||
|
||||
// Implements prometheus.Collector
|
||||
// Expire removes Samples that have expired.
|
||||
func (p *PrometheusClient) Expire() {
|
||||
now := p.now()
|
||||
for name, family := range p.fam {
|
||||
for key, sample := range family.Samples {
|
||||
if p.ExpirationInterval.Duration != 0 && now.After(sample.Expiration) {
|
||||
for k, _ := range sample.Labels {
|
||||
family.LabelSet[k]--
|
||||
}
|
||||
delete(family.Samples, key)
|
||||
|
||||
if len(family.Samples) == 0 {
|
||||
delete(p.fam, name)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Collect implements prometheus.Collector
|
||||
func (p *PrometheusClient) Collect(ch chan<- prometheus.Metric) {
|
||||
p.Lock()
|
||||
defer p.Unlock()
|
||||
|
||||
for key, m := range p.metrics {
|
||||
if p.ExpirationInterval.Duration != 0 && time.Now().After(m.Expiration) {
|
||||
delete(p.metrics, key)
|
||||
} else {
|
||||
ch <- m.Metric
|
||||
p.Expire()
|
||||
|
||||
for name, family := range p.fam {
|
||||
// Get list of all labels on MetricFamily
|
||||
var labelNames []string
|
||||
for k, v := range family.LabelSet {
|
||||
if v > 0 {
|
||||
labelNames = append(labelNames, k)
|
||||
}
|
||||
}
|
||||
desc := prometheus.NewDesc(name, "Telegraf collected metric", labelNames, nil)
|
||||
|
||||
for _, sample := range family.Samples {
|
||||
// Get labels for this sample; unset labels will be set to the
|
||||
// empty string
|
||||
var labels []string
|
||||
for _, label := range labelNames {
|
||||
v := sample.Labels[label]
|
||||
labels = append(labels, v)
|
||||
}
|
||||
|
||||
metric, err := prometheus.NewConstMetric(desc, family.ValueType, sample.Value, labels...)
|
||||
if err != nil {
|
||||
log.Printf("E! Error creating prometheus metric, "+
|
||||
"key: %s, labels: %v,\nerr: %s\n",
|
||||
name, labels, err.Error())
|
||||
}
|
||||
|
||||
ch <- metric
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func sanitize(value string) string {
|
||||
return invalidNameCharRE.ReplaceAllString(value, "_")
|
||||
}
|
||||
|
||||
func valueType(tt telegraf.ValueType) prometheus.ValueType {
|
||||
switch tt {
|
||||
case telegraf.Counter:
|
||||
return prometheus.CounterValue
|
||||
case telegraf.Gauge:
|
||||
return prometheus.GaugeValue
|
||||
default:
|
||||
return prometheus.UntypedValue
|
||||
}
|
||||
}
|
||||
|
||||
// CreateSampleID creates a SampleID based on the tags of a telegraf.Metric.
|
||||
func CreateSampleID(tags map[string]string) SampleID {
|
||||
pairs := make([]string, 0, len(tags))
|
||||
for k, v := range tags {
|
||||
pairs = append(pairs, fmt.Sprintf("%s=%s", k, v))
|
||||
}
|
||||
sort.Strings(pairs)
|
||||
return SampleID(strings.Join(pairs, ","))
|
||||
}
|
||||
|
||||
func (p *PrometheusClient) Write(metrics []telegraf.Metric) error {
|
||||
p.Lock()
|
||||
defer p.Unlock()
|
||||
|
||||
if len(metrics) == 0 {
|
||||
return nil
|
||||
}
|
||||
now := p.now()
|
||||
|
||||
for _, point := range metrics {
|
||||
key := point.Name()
|
||||
key = invalidNameCharRE.ReplaceAllString(key, "_")
|
||||
tags := point.Tags()
|
||||
vt := valueType(point.Type())
|
||||
sampleID := CreateSampleID(tags)
|
||||
|
||||
// convert tags into prometheus labels
|
||||
var labels []string
|
||||
l := prometheus.Labels{}
|
||||
for k, v := range point.Tags() {
|
||||
k = invalidNameCharRE.ReplaceAllString(k, "_")
|
||||
if len(k) == 0 {
|
||||
continue
|
||||
}
|
||||
labels = append(labels, k)
|
||||
l[k] = v
|
||||
labels := make(map[string]string)
|
||||
for k, v := range tags {
|
||||
labels[sanitize(k)] = sanitize(v)
|
||||
}
|
||||
|
||||
// Get a type if it's available, defaulting to Untyped
|
||||
var mType prometheus.ValueType
|
||||
switch point.Type() {
|
||||
case telegraf.Counter:
|
||||
mType = prometheus.CounterValue
|
||||
case telegraf.Gauge:
|
||||
mType = prometheus.GaugeValue
|
||||
default:
|
||||
mType = prometheus.UntypedValue
|
||||
}
|
||||
|
||||
for n, val := range point.Fields() {
|
||||
for fn, fv := range point.Fields() {
|
||||
// Ignore string and bool fields.
|
||||
switch val.(type) {
|
||||
case string:
|
||||
continue
|
||||
case bool:
|
||||
continue
|
||||
}
|
||||
|
||||
// sanitize the measurement name
|
||||
n = invalidNameCharRE.ReplaceAllString(n, "_")
|
||||
var mname string
|
||||
if n == "value" {
|
||||
mname = key
|
||||
} else {
|
||||
mname = fmt.Sprintf("%s_%s", key, n)
|
||||
}
|
||||
|
||||
desc := prometheus.NewDesc(mname, "Telegraf collected metric", nil, l)
|
||||
var metric prometheus.Metric
|
||||
var err error
|
||||
|
||||
// switch for field type
|
||||
switch val := val.(type) {
|
||||
var value float64
|
||||
switch fv := fv.(type) {
|
||||
case int64:
|
||||
metric, err = prometheus.NewConstMetric(desc, mType, float64(val))
|
||||
value = float64(fv)
|
||||
case float64:
|
||||
metric, err = prometheus.NewConstMetric(desc, mType, val)
|
||||
value = fv
|
||||
default:
|
||||
continue
|
||||
}
|
||||
if err != nil {
|
||||
log.Printf("E! Error creating prometheus metric, "+
|
||||
"key: %s, labels: %v,\nerr: %s\n",
|
||||
mname, l, err.Error())
|
||||
|
||||
sample := &Sample{
|
||||
Labels: labels,
|
||||
Value: value,
|
||||
Expiration: now.Add(p.ExpirationInterval.Duration),
|
||||
}
|
||||
|
||||
p.metrics[desc.String()] = &MetricWithExpiration{
|
||||
Metric: metric,
|
||||
Expiration: time.Now().Add(p.ExpirationInterval.Duration),
|
||||
// Special handling of value field; supports passthrough from
|
||||
// the prometheus input.
|
||||
var mname string
|
||||
if fn == "value" {
|
||||
mname = sanitize(point.Name())
|
||||
} else {
|
||||
mname = sanitize(fmt.Sprintf("%s_%s", point.Name(), fn))
|
||||
}
|
||||
|
||||
var fam *MetricFamily
|
||||
var ok bool
|
||||
if fam, ok = p.fam[mname]; !ok {
|
||||
fam = &MetricFamily{
|
||||
Samples: make(map[SampleID]*Sample),
|
||||
ValueType: vt,
|
||||
LabelSet: make(map[string]int),
|
||||
}
|
||||
p.fam[mname] = fam
|
||||
} else {
|
||||
if fam.ValueType != vt {
|
||||
// Don't return an error since this would be a permanent error
|
||||
log.Printf("Mixed ValueType for measurement %q; dropping point", point.Name())
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
for k, _ := range sample.Labels {
|
||||
fam.LabelSet[k]++
|
||||
}
|
||||
|
||||
fam.Samples[sampleID] = sample
|
||||
}
|
||||
}
|
||||
return nil
|
||||
|
|
@ -187,6 +266,8 @@ func init() {
|
|||
outputs.Add("prometheus_client", func() telegraf.Output {
|
||||
return &PrometheusClient{
|
||||
ExpirationInterval: internal.Duration{Duration: time.Second * 60},
|
||||
fam: make(map[string]*MetricFamily),
|
||||
now: time.Now,
|
||||
}
|
||||
})
|
||||
}
|
||||
|
|
|
|||
|
|
@ -4,16 +4,314 @@ import (
|
|||
"testing"
|
||||
"time"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
"github.com/stretchr/testify/require"
|
||||
|
||||
"github.com/influxdata/telegraf"
|
||||
"github.com/influxdata/telegraf/internal"
|
||||
"github.com/influxdata/telegraf/metric"
|
||||
"github.com/influxdata/telegraf/plugins/inputs/prometheus"
|
||||
prometheus_input "github.com/influxdata/telegraf/plugins/inputs/prometheus"
|
||||
"github.com/influxdata/telegraf/testutil"
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
"github.com/stretchr/testify/require"
|
||||
)
|
||||
|
||||
func setUnixTime(client *PrometheusClient, sec int64) {
|
||||
client.now = func() time.Time {
|
||||
return time.Unix(sec, 0)
|
||||
}
|
||||
}
|
||||
|
||||
// NewClient initializes a PrometheusClient.
|
||||
func NewClient() *PrometheusClient {
|
||||
return &PrometheusClient{
|
||||
ExpirationInterval: internal.Duration{Duration: time.Second * 60},
|
||||
fam: make(map[string]*MetricFamily),
|
||||
now: time.Now,
|
||||
}
|
||||
}
|
||||
|
||||
func TestWrite_Basic(t *testing.T) {
|
||||
now := time.Now()
|
||||
pt1, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 0.0},
|
||||
now)
|
||||
var metrics = []telegraf.Metric{
|
||||
pt1,
|
||||
}
|
||||
|
||||
client := NewClient()
|
||||
err = client.Write(metrics)
|
||||
require.NoError(t, err)
|
||||
|
||||
fam, ok := client.fam["foo"]
|
||||
require.True(t, ok)
|
||||
require.Equal(t, prometheus.UntypedValue, fam.ValueType)
|
||||
require.Equal(t, map[string]int{}, fam.LabelSet)
|
||||
|
||||
sample, ok := fam.Samples[CreateSampleID(pt1.Tags())]
|
||||
require.True(t, ok)
|
||||
|
||||
require.Equal(t, 0.0, sample.Value)
|
||||
require.True(t, now.Before(sample.Expiration))
|
||||
}
|
||||
|
||||
func TestWrite_IntField(t *testing.T) {
|
||||
client := NewClient()
|
||||
|
||||
p1, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 42},
|
||||
time.Now())
|
||||
err = client.Write([]telegraf.Metric{p1})
|
||||
require.NoError(t, err)
|
||||
|
||||
fam, ok := client.fam["foo"]
|
||||
require.True(t, ok)
|
||||
for _, v := range fam.Samples {
|
||||
require.Equal(t, 42.0, v.Value)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func TestWrite_FieldNotValue(t *testing.T) {
|
||||
client := NewClient()
|
||||
|
||||
p1, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"howdy": 0.0},
|
||||
time.Now())
|
||||
err = client.Write([]telegraf.Metric{p1})
|
||||
require.NoError(t, err)
|
||||
|
||||
fam, ok := client.fam["foo_howdy"]
|
||||
require.True(t, ok)
|
||||
for _, v := range fam.Samples {
|
||||
require.Equal(t, 0.0, v.Value)
|
||||
}
|
||||
}
|
||||
|
||||
func TestWrite_SkipNonNumberField(t *testing.T) {
|
||||
client := NewClient()
|
||||
|
||||
p1, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": "howdy"},
|
||||
time.Now())
|
||||
err = client.Write([]telegraf.Metric{p1})
|
||||
require.NoError(t, err)
|
||||
|
||||
_, ok := client.fam["foo"]
|
||||
require.False(t, ok)
|
||||
}
|
||||
|
||||
func TestWrite_Counter(t *testing.T) {
|
||||
client := NewClient()
|
||||
|
||||
p1, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 42},
|
||||
time.Now(),
|
||||
telegraf.Counter)
|
||||
err = client.Write([]telegraf.Metric{p1})
|
||||
require.NoError(t, err)
|
||||
|
||||
fam, ok := client.fam["foo"]
|
||||
require.True(t, ok)
|
||||
require.Equal(t, prometheus.CounterValue, fam.ValueType)
|
||||
}
|
||||
|
||||
func TestWrite_Sanitize(t *testing.T) {
|
||||
client := NewClient()
|
||||
|
||||
p1, err := metric.New(
|
||||
"foo.bar",
|
||||
map[string]string{"tag-with-dash": "localhost.local"},
|
||||
map[string]interface{}{"field-with-dash": 42},
|
||||
time.Now(),
|
||||
telegraf.Counter)
|
||||
err = client.Write([]telegraf.Metric{p1})
|
||||
require.NoError(t, err)
|
||||
|
||||
fam, ok := client.fam["foo_bar_field_with_dash"]
|
||||
require.True(t, ok)
|
||||
require.Equal(t, map[string]int{"tag_with_dash": 1}, fam.LabelSet)
|
||||
|
||||
sample1, ok := fam.Samples[CreateSampleID(p1.Tags())]
|
||||
require.True(t, ok)
|
||||
|
||||
require.Equal(t, map[string]string{
|
||||
"tag_with_dash": "localhost_local"}, sample1.Labels)
|
||||
}
|
||||
|
||||
func TestWrite_Gauge(t *testing.T) {
|
||||
client := NewClient()
|
||||
|
||||
p1, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 42},
|
||||
time.Now(),
|
||||
telegraf.Gauge)
|
||||
err = client.Write([]telegraf.Metric{p1})
|
||||
require.NoError(t, err)
|
||||
|
||||
fam, ok := client.fam["foo"]
|
||||
require.True(t, ok)
|
||||
require.Equal(t, prometheus.GaugeValue, fam.ValueType)
|
||||
}
|
||||
|
||||
func TestWrite_MixedValueType(t *testing.T) {
|
||||
now := time.Now()
|
||||
p1, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 1.0},
|
||||
now,
|
||||
telegraf.Counter)
|
||||
p2, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 2.0},
|
||||
now,
|
||||
telegraf.Gauge)
|
||||
var metrics = []telegraf.Metric{p1, p2}
|
||||
|
||||
client := NewClient()
|
||||
err = client.Write(metrics)
|
||||
require.NoError(t, err)
|
||||
|
||||
fam, ok := client.fam["foo"]
|
||||
require.True(t, ok)
|
||||
require.Equal(t, 1, len(fam.Samples))
|
||||
}
|
||||
|
||||
func TestWrite_Tags(t *testing.T) {
|
||||
now := time.Now()
|
||||
p1, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 1.0},
|
||||
now)
|
||||
p2, err := metric.New(
|
||||
"foo",
|
||||
map[string]string{"host": "localhost"},
|
||||
map[string]interface{}{"value": 2.0},
|
||||
now)
|
||||
var metrics = []telegraf.Metric{p1, p2}
|
||||
|
||||
client := NewClient()
|
||||
err = client.Write(metrics)
|
||||
require.NoError(t, err)
|
||||
|
||||
fam, ok := client.fam["foo"]
|
||||
require.True(t, ok)
|
||||
require.Equal(t, prometheus.UntypedValue, fam.ValueType)
|
||||
|
||||
require.Equal(t, map[string]int{"host": 1}, fam.LabelSet)
|
||||
|
||||
sample1, ok := fam.Samples[CreateSampleID(p1.Tags())]
|
||||
require.True(t, ok)
|
||||
|
||||
require.Equal(t, 1.0, sample1.Value)
|
||||
require.True(t, now.Before(sample1.Expiration))
|
||||
|
||||
sample2, ok := fam.Samples[CreateSampleID(p2.Tags())]
|
||||
require.True(t, ok)
|
||||
|
||||
require.Equal(t, 2.0, sample2.Value)
|
||||
require.True(t, now.Before(sample2.Expiration))
|
||||
}
|
||||
|
||||
func TestExpire(t *testing.T) {
|
||||
client := NewClient()
|
||||
|
||||
p1, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 1.0},
|
||||
time.Now())
|
||||
setUnixTime(client, 0)
|
||||
err = client.Write([]telegraf.Metric{p1})
|
||||
require.NoError(t, err)
|
||||
|
||||
p2, err := metric.New(
|
||||
"bar",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 2.0},
|
||||
time.Now())
|
||||
setUnixTime(client, 1)
|
||||
err = client.Write([]telegraf.Metric{p2})
|
||||
|
||||
setUnixTime(client, 61)
|
||||
require.Equal(t, 2, len(client.fam))
|
||||
client.Expire()
|
||||
require.Equal(t, 1, len(client.fam))
|
||||
}
|
||||
|
||||
func TestExpire_TagsNoDecrement(t *testing.T) {
|
||||
client := NewClient()
|
||||
|
||||
p1, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 1.0},
|
||||
time.Now())
|
||||
setUnixTime(client, 0)
|
||||
err = client.Write([]telegraf.Metric{p1})
|
||||
require.NoError(t, err)
|
||||
|
||||
p2, err := metric.New(
|
||||
"foo",
|
||||
map[string]string{"host": "localhost"},
|
||||
map[string]interface{}{"value": 2.0},
|
||||
time.Now())
|
||||
setUnixTime(client, 1)
|
||||
err = client.Write([]telegraf.Metric{p2})
|
||||
|
||||
setUnixTime(client, 61)
|
||||
fam, ok := client.fam["foo"]
|
||||
require.True(t, ok)
|
||||
require.Equal(t, 2, len(fam.Samples))
|
||||
client.Expire()
|
||||
require.Equal(t, 1, len(fam.Samples))
|
||||
|
||||
require.Equal(t, map[string]int{"host": 1}, fam.LabelSet)
|
||||
}
|
||||
|
||||
func TestExpire_TagsWithDecrement(t *testing.T) {
|
||||
client := NewClient()
|
||||
|
||||
p1, err := metric.New(
|
||||
"foo",
|
||||
map[string]string{"host": "localhost"},
|
||||
map[string]interface{}{"value": 1.0},
|
||||
time.Now())
|
||||
setUnixTime(client, 0)
|
||||
err = client.Write([]telegraf.Metric{p1})
|
||||
require.NoError(t, err)
|
||||
|
||||
p2, err := metric.New(
|
||||
"foo",
|
||||
make(map[string]string),
|
||||
map[string]interface{}{"value": 2.0},
|
||||
time.Now())
|
||||
setUnixTime(client, 1)
|
||||
err = client.Write([]telegraf.Metric{p2})
|
||||
|
||||
setUnixTime(client, 61)
|
||||
fam, ok := client.fam["foo"]
|
||||
require.True(t, ok)
|
||||
require.Equal(t, 2, len(fam.Samples))
|
||||
client.Expire()
|
||||
require.Equal(t, 1, len(fam.Samples))
|
||||
|
||||
require.Equal(t, map[string]int{"host": 0}, fam.LabelSet)
|
||||
}
|
||||
|
||||
var pTesting *PrometheusClient
|
||||
|
||||
func TestPrometheusWritePointEmptyTag(t *testing.T) {
|
||||
|
|
@ -93,74 +391,21 @@ func TestPrometheusWritePointEmptyTag(t *testing.T) {
|
|||
}
|
||||
}
|
||||
|
||||
func TestPrometheusExpireOldMetrics(t *testing.T) {
|
||||
if testing.Short() {
|
||||
t.Skip("Skipping integration test in short mode")
|
||||
}
|
||||
|
||||
pClient, p, err := setupPrometheus()
|
||||
pClient.ExpirationInterval = internal.Duration{Duration: time.Second * 10}
|
||||
require.NoError(t, err)
|
||||
defer pClient.Stop()
|
||||
|
||||
now := time.Now()
|
||||
tags := make(map[string]string)
|
||||
pt1, _ := metric.New(
|
||||
"test_point_1",
|
||||
tags,
|
||||
map[string]interface{}{"value": 0.0},
|
||||
now)
|
||||
var metrics = []telegraf.Metric{pt1}
|
||||
require.NoError(t, pClient.Write(metrics))
|
||||
|
||||
for _, m := range pClient.metrics {
|
||||
m.Expiration = now.Add(time.Duration(-15) * time.Second)
|
||||
}
|
||||
|
||||
pt2, _ := metric.New(
|
||||
"test_point_2",
|
||||
tags,
|
||||
map[string]interface{}{"value": 1.0},
|
||||
now)
|
||||
var metrics2 = []telegraf.Metric{pt2}
|
||||
require.NoError(t, pClient.Write(metrics2))
|
||||
|
||||
expected := []struct {
|
||||
name string
|
||||
value float64
|
||||
tags map[string]string
|
||||
}{
|
||||
{"test_point_2", 1.0, tags},
|
||||
}
|
||||
|
||||
var acc testutil.Accumulator
|
||||
|
||||
require.NoError(t, p.Gather(&acc))
|
||||
for _, e := range expected {
|
||||
acc.AssertContainsFields(t, e.name,
|
||||
map[string]interface{}{"value": e.value})
|
||||
}
|
||||
|
||||
acc.AssertDoesNotContainMeasurement(t, "test_point_1")
|
||||
|
||||
// Confirm that it's not in the PrometheusClient map anymore
|
||||
assert.Equal(t, 1, len(pClient.metrics))
|
||||
}
|
||||
|
||||
func setupPrometheus() (*PrometheusClient, *prometheus.Prometheus, error) {
|
||||
func setupPrometheus() (*PrometheusClient, *prometheus_input.Prometheus, error) {
|
||||
if pTesting == nil {
|
||||
pTesting = &PrometheusClient{Listen: "localhost:9127"}
|
||||
pTesting = NewClient()
|
||||
pTesting.Listen = "localhost:9127"
|
||||
err := pTesting.Start()
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
} else {
|
||||
pTesting.metrics = make(map[string]*MetricWithExpiration)
|
||||
pTesting.fam = make(map[string]*MetricFamily)
|
||||
}
|
||||
|
||||
time.Sleep(time.Millisecond * 200)
|
||||
|
||||
p := &prometheus.Prometheus{
|
||||
p := &prometheus_input.Prometheus{
|
||||
Urls: []string{"http://localhost:9127/metrics"},
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue