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Add Zipkin input plugin (#3080)

This commit is contained in:
Daniel Nelson 2017-08-02 17:58:26 -07:00 committed by GitHub
parent 008d0e724f
commit 7611b40b7e
18 changed files with 2469 additions and 0 deletions
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7
Godeps
View File

@ -3,6 +3,7 @@ github.com/Shopify/sarama c01858abb625b73a3af51d0798e4ad42c8147093
github.com/Sirupsen/logrus 61e43dc76f7ee59a82bdf3d71033dc12bea4c77d github.com/Sirupsen/logrus 61e43dc76f7ee59a82bdf3d71033dc12bea4c77d
github.com/aerospike/aerospike-client-go 95e1ad7791bdbca44707fedbb29be42024900d9c github.com/aerospike/aerospike-client-go 95e1ad7791bdbca44707fedbb29be42024900d9c
github.com/amir/raidman c74861fe6a7bb8ede0a010ce4485bdbb4fc4c985 github.com/amir/raidman c74861fe6a7bb8ede0a010ce4485bdbb4fc4c985
github.com/apache/thrift 4aaa92ece8503a6da9bc6701604f69acf2b99d07
github.com/aws/aws-sdk-go c861d27d0304a79f727e9a8a4e2ac1e74602fdc0 github.com/aws/aws-sdk-go c861d27d0304a79f727e9a8a4e2ac1e74602fdc0
github.com/beorn7/perks 4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9 github.com/beorn7/perks 4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9
github.com/bsm/sarama-cluster ccdc0803695fbce22f1706d04ded46cd518fd832 github.com/bsm/sarama-cluster ccdc0803695fbce22f1706d04ded46cd518fd832
@ -17,10 +18,13 @@ github.com/eapache/go-resiliency b86b1ec0dd4209a588dc1285cdd471e73525c0b3
github.com/eapache/go-xerial-snappy bb955e01b9346ac19dc29eb16586c90ded99a98c github.com/eapache/go-xerial-snappy bb955e01b9346ac19dc29eb16586c90ded99a98c
github.com/eapache/queue 44cc805cf13205b55f69e14bcb69867d1ae92f98 github.com/eapache/queue 44cc805cf13205b55f69e14bcb69867d1ae92f98
github.com/eclipse/paho.mqtt.golang d4f545eb108a2d19f9b1a735689dbfb719bc21fb github.com/eclipse/paho.mqtt.golang d4f545eb108a2d19f9b1a735689dbfb719bc21fb
github.com/go-logfmt/logfmt 390ab7935ee28ec6b286364bba9b4dd6410cb3d5
github.com/go-sql-driver/mysql 2e00b5cd70399450106cec6431c2e2ce3cae5034 github.com/go-sql-driver/mysql 2e00b5cd70399450106cec6431c2e2ce3cae5034
github.com/gobwas/glob bea32b9cd2d6f55753d94a28e959b13f0244797a github.com/gobwas/glob bea32b9cd2d6f55753d94a28e959b13f0244797a
github.com/gogo/protobuf 7b6c6391c4ff245962047fc1e2c6e08b1cdfa0e8
github.com/golang/protobuf 8ee79997227bf9b34611aee7946ae64735e6fd93 github.com/golang/protobuf 8ee79997227bf9b34611aee7946ae64735e6fd93
github.com/golang/snappy 7db9049039a047d955fe8c19b83c8ff5abd765c7 github.com/golang/snappy 7db9049039a047d955fe8c19b83c8ff5abd765c7
github.com/google/go-cmp f94e52cad91c65a63acc1e75d4be223ea22e99bc
github.com/gorilla/mux 392c28fe23e1c45ddba891b0320b3b5df220beea github.com/gorilla/mux 392c28fe23e1c45ddba891b0320b3b5df220beea
github.com/hailocab/go-hostpool e80d13ce29ede4452c43dea11e79b9bc8a15b478 github.com/hailocab/go-hostpool e80d13ce29ede4452c43dea11e79b9bc8a15b478
github.com/hashicorp/consul 63d2fc68239b996096a1c55a0d4b400ea4c2583f github.com/hashicorp/consul 63d2fc68239b996096a1c55a0d4b400ea4c2583f
@ -39,6 +43,9 @@ github.com/nats-io/nats ea9585611a4ab58a205b9b125ebd74c389a6b898
github.com/nats-io/nuid 289cccf02c178dc782430d534e3c1f5b72af807f github.com/nats-io/nuid 289cccf02c178dc782430d534e3c1f5b72af807f
github.com/nsqio/go-nsq a53d495e81424aaf7a7665a9d32a97715c40e953 github.com/nsqio/go-nsq a53d495e81424aaf7a7665a9d32a97715c40e953
github.com/opencontainers/runc 89ab7f2ccc1e45ddf6485eaa802c35dcf321dfc8 github.com/opencontainers/runc 89ab7f2ccc1e45ddf6485eaa802c35dcf321dfc8
github.com/opentracing-contrib/go-observer a52f2342449246d5bcc273e65cbdcfa5f7d6c63c
github.com/opentracing/opentracing-go 06f47b42c792fef2796e9681353e1d908c417827
github.com/openzipkin/zipkin-go-opentracing 1cafbdfde94fbf2b373534764e0863aa3bd0bf7b
github.com/pierrec/lz4 5c9560bfa9ace2bf86080bf40d46b34ae44604df github.com/pierrec/lz4 5c9560bfa9ace2bf86080bf40d46b34ae44604df
github.com/pierrec/xxHash 5a004441f897722c627870a981d02b29924215fa github.com/pierrec/xxHash 5a004441f897722c627870a981d02b29924215fa
github.com/pkg/errors 645ef00459ed84a119197bfb8d8205042c6df63d github.com/pkg/errors 645ef00459ed84a119197bfb8d8205042c6df63d

5
docs/LICENSE_OF_DEPENDENCIES.md
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@ -26,9 +26,11 @@ works:
- github.com/eclipse/paho.mqtt.golang [ECLIPSE](https://github.com/eclipse/paho.mqtt.golang/blob/master/LICENSE) - github.com/eclipse/paho.mqtt.golang [ECLIPSE](https://github.com/eclipse/paho.mqtt.golang/blob/master/LICENSE)
- github.com/fsouza/go-dockerclient [BSD](https://github.com/fsouza/go-dockerclient/blob/master/LICENSE) - github.com/fsouza/go-dockerclient [BSD](https://github.com/fsouza/go-dockerclient/blob/master/LICENSE)
- github.com/gobwas/glob [MIT](https://github.com/gobwas/glob/blob/master/LICENSE) - github.com/gobwas/glob [MIT](https://github.com/gobwas/glob/blob/master/LICENSE)
- github.com/google/go-cmp [BSD](https://github.com/google/go-cmp/blob/master/LICENSE)
- github.com/gogo/protobuf [BSD](https://github.com/gogo/protobuf/blob/master/LICENSE) - github.com/gogo/protobuf [BSD](https://github.com/gogo/protobuf/blob/master/LICENSE)
- github.com/golang/protobuf [BSD](https://github.com/golang/protobuf/blob/master/LICENSE) - github.com/golang/protobuf [BSD](https://github.com/golang/protobuf/blob/master/LICENSE)
- github.com/golang/snappy [BSD](https://github.com/golang/snappy/blob/master/LICENSE) - github.com/golang/snappy [BSD](https://github.com/golang/snappy/blob/master/LICENSE)
- github.com/go-logfmt/logfmt [MIT](https://github.com/go-logfmt/logfmt/blob/master/LICENSE)
- github.com/gorilla/mux [BSD](https://github.com/gorilla/mux/blob/master/LICENSE) - github.com/gorilla/mux [BSD](https://github.com/gorilla/mux/blob/master/LICENSE)
- github.com/go-sql-driver/mysql [MPL](https://github.com/go-sql-driver/mysql/blob/master/LICENSE) - github.com/go-sql-driver/mysql [MPL](https://github.com/go-sql-driver/mysql/blob/master/LICENSE)
- github.com/hailocab/go-hostpool [MIT](https://github.com/hailocab/go-hostpool/blob/master/LICENSE) - github.com/hailocab/go-hostpool [MIT](https://github.com/hailocab/go-hostpool/blob/master/LICENSE)
@ -52,6 +54,9 @@ works:
- github.com/nats-io/nats [MIT](https://github.com/nats-io/nats/blob/master/LICENSE) - github.com/nats-io/nats [MIT](https://github.com/nats-io/nats/blob/master/LICENSE)
- github.com/nats-io/nuid [MIT](https://github.com/nats-io/nuid/blob/master/LICENSE) - github.com/nats-io/nuid [MIT](https://github.com/nats-io/nuid/blob/master/LICENSE)
- github.com/nsqio/go-nsq [MIT](https://github.com/nsqio/go-nsq/blob/master/LICENSE) - github.com/nsqio/go-nsq [MIT](https://github.com/nsqio/go-nsq/blob/master/LICENSE)
- github.com/opentracing-contrib/go-observer [APACHE](https://github.com/opentracing-contrib/go-observer/blob/master/LICENSE)
- github.com/opentracing/opentracing-go [MIT](https://github.com/opentracing/opentracing-go/blob/master/LICENSE)
- github.com/openzipkin/zipkin-go-opentracing [MIT](https://github.com/openzipkin/zipkin-go-opentracing/blob/master/LICENSE)
- github.com/pierrec/lz4 [BSD](https://github.com/pierrec/lz4/blob/master/LICENSE) - github.com/pierrec/lz4 [BSD](https://github.com/pierrec/lz4/blob/master/LICENSE)
- github.com/pierrec/xxHash [BSD](https://github.com/pierrec/xxHash/blob/master/LICENSE) - github.com/pierrec/xxHash [BSD](https://github.com/pierrec/xxHash/blob/master/LICENSE)
- github.com/pkg/errors [BSD](https://github.com/pkg/errors/blob/master/LICENSE) - github.com/pkg/errors [BSD](https://github.com/pkg/errors/blob/master/LICENSE)

1
plugins/inputs/all/all.go
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@ -89,5 +89,6 @@ import (
_ "github.com/influxdata/telegraf/plugins/inputs/webhooks" _ "github.com/influxdata/telegraf/plugins/inputs/webhooks"
_ "github.com/influxdata/telegraf/plugins/inputs/win_perf_counters" _ "github.com/influxdata/telegraf/plugins/inputs/win_perf_counters"
_ "github.com/influxdata/telegraf/plugins/inputs/zfs" _ "github.com/influxdata/telegraf/plugins/inputs/zfs"
_ "github.com/influxdata/telegraf/plugins/inputs/zipkin"
_ "github.com/influxdata/telegraf/plugins/inputs/zookeeper" _ "github.com/influxdata/telegraf/plugins/inputs/zookeeper"
) )

164
plugins/inputs/zipkin/README.md Normal file
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@ -0,0 +1,164 @@
# Zipkin Plugin
This plugin implements the Zipkin http server to gather trace and timing data needed to troubleshoot latency problems in microservice architectures.
*Please Note: This plugin is experimental; Its data schema may be subject to change
based on its main usage cases and the evolution of the OpenTracing standard.*
## Configuration:
```toml
[[inputs.zipkin]]
path = "/api/v1/spans" # URL path for span data
port = 9411 # Port on which Telegraf listens
```
## Tracing:
This plugin uses Annotations tags and fields to track data from spans
- __TRACE:__ is a set of spans that share a single root span.
Traces are built by collecting all Spans that share a traceId.
- __SPAN:__ is a set of Annotations and BinaryAnnotations that correspond to a particular RPC.
- __Annotations:__ for each annotation & binary annotation of a span a metric is output. *Records an occurrence in time at the beginning and end of a request.*
Annotations may have the following values:
- __CS (client start):__ beginning of span, request is made.
- __SR (server receive):__ server receives request and will start processing it
network latency & clock jitters differ it from cs
- __SS (server send):__ server is done processing and sends request back to client
amount of time it took to process request will differ it from sr
- __CR (client receive):__ end of span, client receives response from server
RPC is considered complete with this annotation
### Tags
* __"id":__ The 64 bit ID of the span.
* __"parent_id":__ An ID associated with a particular child span. If there is no child span, the parent ID is set to ID.
* __"trace_id":__ The 64 or 128-bit ID of a particular trace. Every span in a trace shares this ID. Concatenation of high and low and converted to hexadecimal.
* __"name":__ Defines a span
##### Annotations have these additional tags:
* __"service_name":__ Defines a service
* __"annotation":__ The value of an annotation
* __"endpoint_host":__ Listening port concat with IPV4, if port is not present it will not be concatenated
##### Binary Annotations have these additional tag:
* __"service_name":__ Defines a service
* __"annotation":__ The value of an annotation
* __"endpoint_host":__ Listening port concat with IPV4, if port is not present it will not be concatenated
* __"annotation_key":__ label describing the annotation
### Fields:
* __"duration_ns":__ The time in nanoseconds between the end and beginning of a span.
### Sample Queries:
__Get All Span Names for Service__ `my_web_server`
```sql
SHOW TAG VALUES FROM "zipkin" with key="name" WHERE "service_name" = 'my_web_server'
```
- __Description:__ returns a list containing the names of the spans which have annotations with the given `service_name` of `my_web_server`.
__Get All Service Names__
```sql
SHOW TAG VALUES FROM "zipkin" WITH KEY = "service_name"
```
- __Description:__ returns a list of all `distinct` endpoint service names.
__Find spans with longest duration__
```sql
SELECT max("duration_ns") FROM "zipkin" WHERE "service_name" = 'my_service' AND "name" = 'my_span_name' AND time > now() - 20m GROUP BY "trace_id",time(30s) LIMIT 5
```
- __Description:__ In the last 20 minutes find the top 5 longest span durations for service `my_server` and span name `my_span_name`
### Recommended InfluxDB setup
This test will create high cardinality data so we reccomend using the [tsi influxDB engine](https://www.influxdata.com/path-1-billion-time-series-influxdb-high-cardinality-indexing-ready-testing/).
#### How To Set Up InfluxDB For Work With Zipkin
##### Steps
1. ___Update___ InfluxDB to >= 1.3, in order to use the new tsi engine.
2. ___Generate___ a config file with the following command:
```sh
influxd config > /path/for/config/file
```
3. ___Add___ the following to your config file, under the `[data]` tab:
```toml
[data]
index-version = "tsi1"
```
4. ___Start___ `influxd` with your new config file:
```sh
influxd -config=/path/to/your/config/file
```
5. ___Update___ your retention policy:
```sql
ALTER RETENTION POLICY "autogen" ON "telegraf" DURATION 1d SHARD DURATION 30m
```
### Example Input Trace:
- [Cli microservice with two services Test](https://github.com/openzipkin/zipkin-go-opentracing/tree/master/examples/cli_with_2_services)
- [Test data from distributed trace repo sample json](https://github.com/mattkanwisher/distributedtrace/blob/master/testclient/sample.json)
#### [Trace Example from Zipkin model](http://zipkin.io/pages/data_model.html)
```json
{
"traceId": "bd7a977555f6b982",
"name": "query",
"id": "be2d01e33cc78d97",
"parentId": "ebf33e1a81dc6f71",
"timestamp": 1458702548786000,
"duration": 13000,
"annotations": [
{
"endpoint": {
"serviceName": "zipkin-query",
"ipv4": "192.168.1.2",
"port": 9411
},
"timestamp": 1458702548786000,
"value": "cs"
},
{
"endpoint": {
"serviceName": "zipkin-query",
"ipv4": "192.168.1.2",
"port": 9411
},
"timestamp": 1458702548799000,
"value": "cr"
}
],
"binaryAnnotations": [
{
"key": "jdbc.query",
"value": "select distinct `zipkin_spans`.`trace_id` from `zipkin_spans` join `zipkin_annotations` on (`zipkin_spans`.`trace_id` = `zipkin_annotations`.`trace_id` and `zipkin_spans`.`id` = `zipkin_annotations`.`span_id`) where (`zipkin_annotations`.`endpoint_service_name` = ? and `zipkin_spans`.`start_ts` between ? and ?) order by `zipkin_spans`.`start_ts` desc limit ?",
"endpoint": {
"serviceName": "zipkin-query",
"ipv4": "192.168.1.2",
"port": 9411
}
},
{
"key": "sa",
"value": true,
"endpoint": {
"serviceName": "spanstore-jdbc",
"ipv4": "127.0.0.1",
"port": 3306
}
}
]
}
```

75
plugins/inputs/zipkin/cmd/stress_test_write/stress_test_write.go Normal file
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@ -0,0 +1,75 @@
/*
This is a development testing cli tool meant to stress the zipkin telegraf plugin.
It writes a specified number of zipkin spans to the plugin endpoint, with other
parameters which dictate batch size and flush timeout.
Usage as follows:
`./stress_test_write -batch_size=<batch_size> -max_backlog=<max_span_buffer_backlog> -batch_interval=<batch_interval_in_seconds> -span_count<number_of_spans_to_write> -zipkin_host=<zipkin_service_hostname>`
Or with a timer:
`time ./stress_test_write -batch_size=<batch_size> -max_backlog=<max_span_buffer_backlog> -batch_interval=<batch_interval_in_seconds> -span_count<number_of_spans_to_write> -zipkin_host=<zipkin_service_hostname>`
However, the flag defaults work just fine for a good write stress test (and are what
this tool has mainly been tested with), so there shouldn't be much need to
manually tweak the parameters.
*/
package main
import (
"flag"
"fmt"
"log"
"time"
zipkin "github.com/openzipkin/zipkin-go-opentracing"
)
var (
BatchSize int
MaxBackLog int
BatchTimeInterval int
SpanCount int
ZipkinServerHost string
)
const usage = `./stress_test_write -batch_size=<batch_size> -max_backlog=<max_span_buffer_backlog> -batch_interval=<batch_interval_in_seconds> -span_count<number_of_spans_to_write> -zipkin_host=<zipkin_service_hostname>`
func init() {
flag.IntVar(&BatchSize, "batch_size", 10000, usage)
flag.IntVar(&MaxBackLog, "max_backlog", 100000, usage)
flag.IntVar(&BatchTimeInterval, "batch_interval", 1, usage)
flag.IntVar(&SpanCount, "span_count", 100000, usage)
flag.StringVar(&ZipkinServerHost, "zipkin_host", "localhost", usage)
}
func main() {
flag.Parse()
var hostname = fmt.Sprintf("http://%s:9411/api/v1/spans", ZipkinServerHost)
collector, err := zipkin.NewHTTPCollector(
hostname,
zipkin.HTTPBatchSize(BatchSize),
zipkin.HTTPMaxBacklog(MaxBackLog),
zipkin.HTTPBatchInterval(time.Duration(BatchTimeInterval)*time.Second))
defer collector.Close()
if err != nil {
log.Fatalf("Error intializing zipkin http collector: %v\n", err)
}
tracer, err := zipkin.NewTracer(
zipkin.NewRecorder(collector, false, "127.0.0.1:0", "trivial"))
if err != nil {
log.Fatalf("Error: %v\n", err)
}
log.Printf("Writing %d spans to zipkin server at %s\n", SpanCount, hostname)
for i := 0; i < SpanCount; i++ {
parent := tracer.StartSpan("Parent")
parent.LogEvent(fmt.Sprintf("Trace%d", i))
parent.Finish()
}
log.Println("Done. Flushing remaining spans...")
}

153
plugins/inputs/zipkin/cmd/thrift_serialize/thrift_serialize.go Normal file
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@ -0,0 +1,153 @@
/*
A small cli utility meant to convert json to zipkin thrift binary format, and
vice versa.
To convert from json to thrift,
the json is unmarshalled, converted to zipkincore.Span structures, and
marshalled into thrift binary protocol. The json must be in an array format (even if it only has one object),
because the tool automatically tries to unmarshall the json into an array of structs.
To convert from thrift to json,
the opposite process must happen. The thrift binary data must be read into an array of
zipkin span structures, and those spans must be marshalled into json.
Usage:
./thrift_serialize -input <input-file> -output <output-file> -deserialize<true|false>
If `deserialize` is set to true (false by default), the tool will interpret the input file as
thrift, and write it as json to the output file.
Otherwise, the input file will be interpreted as json, and the output will be encoded as thrift.
*/
package main
import (
"encoding/json"
"errors"
"flag"
"fmt"
"io/ioutil"
"log"
"github.com/apache/thrift/lib/go/thrift"
"github.com/openzipkin/zipkin-go-opentracing/_thrift/gen-go/zipkincore"
)
var (
filename string
outFileName string
inputType string
)
const usage = `./json_serialize -input <input> -output output -input-type<json|thrift>`
func init() {
flag.StringVar(&filename, "input", "", usage)
flag.StringVar(&outFileName, "output", "", usage)
flag.StringVar(&inputType, "input-type", "thrift", usage)
}
func main() {
flag.Parse()
contents, err := ioutil.ReadFile(filename)
if err != nil {
log.Fatalf("Error reading file: %v\n", err)
}
switch inputType {
case "json":
raw, err := jsonToZipkinThrift(contents)
if err != nil {
log.Fatalf("%v\n", err)
}
ioutil.WriteFile(outFileName, raw, 0644)
case "thrift":
raw, err := thriftToJSONSpans(contents)
if err != nil {
log.Fatalf("%v\n", err)
}
ioutil.WriteFile(outFileName, raw, 0644)
default:
log.Fatalf("Unsupported input type")
}
}
func jsonToZipkinThrift(jsonRaw []byte) ([]byte, error) {
if len(jsonRaw) == 0 {
return nil, errors.New("no data")
}
if string(jsonRaw)[0] != '[' {
return nil, errors.New("cannot unmarshal non array type")
}
var spans []*zipkincore.Span
err := json.Unmarshal(jsonRaw, &spans)
if err != nil {
return nil, fmt.Errorf("error unmarshalling: %v", err)
}
var zspans []*zipkincore.Span
if err != nil {
return nil, err
}
zspans = append(zspans, spans...)
fmt.Println(spans)
buf := thrift.NewTMemoryBuffer()
transport := thrift.NewTBinaryProtocolTransport(buf)
if err = transport.WriteListBegin(thrift.STRUCT, len(spans)); err != nil {
return nil, fmt.Errorf("error in beginning thrift write: %v", err)
}
for _, span := range zspans {
err = span.Write(transport)
if err != nil {
return nil, fmt.Errorf("error converting zipkin struct to thrift: %v", err)
}
}
if err = transport.WriteListEnd(); err != nil {
return nil, fmt.Errorf("error finishing thrift write: %v", err)
}
return buf.Bytes(), nil
}
func thriftToJSONSpans(thriftData []byte) ([]byte, error) {
buffer := thrift.NewTMemoryBuffer()
if _, err := buffer.Write(thriftData); err != nil {
err = fmt.Errorf("error in buffer write: %v", err)
return nil, err
}
transport := thrift.NewTBinaryProtocolTransport(buffer)
_, size, err := transport.ReadListBegin()
if err != nil {
err = fmt.Errorf("error in ReadListBegin: %v", err)
return nil, err
}
var spans []*zipkincore.Span
for i := 0; i < size; i++ {
zs := &zipkincore.Span{}
if err = zs.Read(transport); err != nil {
err = fmt.Errorf("Error reading into zipkin struct: %v", err)
return nil, err
}
spans = append(spans, zs)
}
err = transport.ReadListEnd()
if err != nil {
err = fmt.Errorf("error ending thrift read: %v", err)
return nil, err
}
out, _ := json.MarshalIndent(spans, "", " ")
return out, nil
}

249
plugins/inputs/zipkin/convert.go Normal file
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@ -0,0 +1,249 @@
package zipkin
import (
"encoding/binary"
"fmt"
"net"
"strconv"
"time"
"github.com/influxdata/telegraf"
"github.com/openzipkin/zipkin-go-opentracing/_thrift/gen-go/zipkincore"
)
// DefaultServiceName when the span does not have any serviceName
const DefaultServiceName = "unknown"
//now is a moackable time for now
var now = time.Now
// LineProtocolConverter implements the Recorder interface; it is a
// type meant to encapsulate the storage of zipkin tracing data in
// telegraf as line protocol.
type LineProtocolConverter struct {
acc telegraf.Accumulator
}
// NewLineProtocolConverter returns an instance of LineProtocolConverter that
// will add to the given telegraf.Accumulator
func NewLineProtocolConverter(acc telegraf.Accumulator) *LineProtocolConverter {
return &LineProtocolConverter{
acc: acc,
}
}
// Record is LineProtocolConverter's implementation of the Record method of
// the Recorder interface; it takes a trace as input, and adds it to an internal
// telegraf.Accumulator.
func (l *LineProtocolConverter) Record(t Trace) error {
for _, s := range t {
fields := map[string]interface{}{
"duration_ns": s.Duration.Nanoseconds(),
}
tags := map[string]string{
"id": s.ID,
"parent_id": s.ParentID,
"trace_id": s.TraceID,
"name": s.Name,
"service_name": s.ServiceName,
}
l.acc.AddFields("zipkin", fields, tags, s.Timestamp)
for _, a := range s.Annotations {
tags := map[string]string{
"id": s.ID,
"parent_id": s.ParentID,
"trace_id": s.TraceID,
"name": s.Name,
"service_name": a.ServiceName,
"annotation": a.Value,
"endpoint_host": a.Host,
}
l.acc.AddFields("zipkin", fields, tags, s.Timestamp)
}
for _, b := range s.BinaryAnnotations {
tags := map[string]string{
"id": s.ID,
"parent_id": s.ParentID,
"trace_id": s.TraceID,
"name": s.Name,
"service_name": b.ServiceName,
"annotation": b.Value,
"endpoint_host": b.Host,
"annotation_key": b.Key,
}
l.acc.AddFields("zipkin", fields, tags, s.Timestamp)
}
}
return nil
}
func (l *LineProtocolConverter) Error(err error) {
l.acc.AddError(err)
}
// NewTrace converts a slice of []*zipkincore.Spans into a new Trace
func NewTrace(spans []*zipkincore.Span) Trace {
trace := make(Trace, len(spans))
for i, span := range spans {
endpoint := serviceEndpoint(span.GetAnnotations(), span.GetBinaryAnnotations())
trace[i] = Span{
ID: formatID(span.GetID()),
TraceID: formatTraceID(span.GetTraceIDHigh(), span.GetTraceID()),
Name: span.GetName(),
Timestamp: guessTimestamp(span),
Duration: convertDuration(span),
ParentID: parentID(span),
ServiceName: serviceName(endpoint),
Annotations: NewAnnotations(span.GetAnnotations(), endpoint),
BinaryAnnotations: NewBinaryAnnotations(span.GetBinaryAnnotations(), endpoint),
}
}
return trace
}
// NewAnnotations converts a slice of *zipkincore.Annotation into a slice
// of new Annotations
func NewAnnotations(annotations []*zipkincore.Annotation, endpoint *zipkincore.Endpoint) []Annotation {
formatted := make([]Annotation, len(annotations))
for i, annotation := range annotations {
formatted[i] = Annotation{
Host: host(endpoint),
ServiceName: serviceName(endpoint),
Timestamp: microToTime(annotation.GetTimestamp()),
Value: annotation.GetValue(),
}
}
return formatted
}
// NewBinaryAnnotations is very similar to NewAnnotations, but it
// converts zipkincore.BinaryAnnotations instead of the normal zipkincore.Annotation
func NewBinaryAnnotations(annotations []*zipkincore.BinaryAnnotation, endpoint *zipkincore.Endpoint) []BinaryAnnotation {
formatted := make([]BinaryAnnotation, len(annotations))
for i, annotation := range annotations {
formatted[i] = BinaryAnnotation{
Host: host(endpoint),
ServiceName: serviceName(endpoint),
Key: annotation.GetKey(),
Value: string(annotation.GetValue()),
Type: annotation.GetAnnotationType().String(),
}
}
return formatted
}
func microToTime(micro int64) time.Time {
return time.Unix(0, micro*int64(time.Microsecond)).UTC()
}
func formatID(id int64) string {
return strconv.FormatInt(id, 10)
}
func formatTraceID(high, low int64) string {
if high == 0 {
return fmt.Sprintf("%x", low)
}
return fmt.Sprintf("%x%016x", high, low)
}
func minMax(span *zipkincore.Span) (time.Time, time.Time) {
min := now().UTC()
max := time.Time{}.UTC()
for _, annotation := range span.Annotations {
ts := microToTime(annotation.GetTimestamp())
if !ts.IsZero() && ts.Before(min) {
min = ts
}
if !ts.IsZero() && ts.After(max) {
max = ts
}
}
if max.IsZero() {
max = min
}
return min, max
}
func guessTimestamp(span *zipkincore.Span) time.Time {
if span.GetTimestamp() != 0 {
return microToTime(span.GetTimestamp())
}
min, _ := minMax(span)
return min
}
func convertDuration(span *zipkincore.Span) time.Duration {
duration := time.Duration(span.GetDuration()) * time.Microsecond
if duration != 0 {
return duration
}
min, max := minMax(span)
return max.Sub(min)
}
func parentID(span *zipkincore.Span) string {
// A parent ID of 0 means that this is a parent span. In this case,
// we set the parent ID of the span to be its own id, so it points to
// itself.
id := span.GetParentID()
if id != 0 {
return formatID(id)
}
return formatID(span.ID)
}
func ipv4(addr int32) string {
buf := make([]byte, 4)
binary.BigEndian.PutUint32(buf, uint32(addr))
return net.IP(buf).String()
}
func host(h *zipkincore.Endpoint) string {
if h == nil {
return ipv4(int32(0))
}
if h.GetPort() == 0 {
return ipv4(h.GetIpv4())
}
// Zipkin uses a signed int16 for the port, but, warns us that they actually treat it
// as an unsigned int16. So, we convert from int16 to int32 followed by taking & 0xffff
// to convert from signed to unsigned
// https://github.com/openzipkin/zipkin/blob/57dc2ec9c65fe6144e401c0c933b4400463a69df/zipkin/src/main/java/zipkin/Endpoint.java#L44
return ipv4(h.GetIpv4()) + ":" + strconv.FormatInt(int64(int(h.GetPort())&0xffff), 10)
}
func serviceName(h *zipkincore.Endpoint) string {
if h == nil {
return DefaultServiceName
}
return h.GetServiceName()
}
func serviceEndpoint(ann []*zipkincore.Annotation, bann []*zipkincore.BinaryAnnotation) *zipkincore.Endpoint {
for _, a := range ann {
switch a.Value {
case zipkincore.SERVER_RECV, zipkincore.SERVER_SEND, zipkincore.CLIENT_RECV, zipkincore.CLIENT_SEND:
if a.Host != nil && a.Host.ServiceName != "" {
return a.Host
}
}
}
for _, a := range bann {
if a.Key == zipkincore.LOCAL_COMPONENT && a.Host != nil && a.Host.ServiceName != "" {
return a.Host
}
}
// Unable to find any "standard" endpoint host, so, use any that exist in the regular annotations
for _, a := range ann {
if a.Host != nil && a.Host.ServiceName != "" {
return a.Host
}
}
return nil
}

544
plugins/inputs/zipkin/convert_test.go Normal file
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@ -0,0 +1,544 @@
package zipkin
import (
"reflect"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/testutil"
"github.com/openzipkin/zipkin-go-opentracing/_thrift/gen-go/zipkincore"
)
func TestLineProtocolConverter_Record(t *testing.T) {
mockAcc := testutil.Accumulator{}
type fields struct {
acc telegraf.Accumulator
}
type args struct {
t Trace
}
tests := []struct {
name string
fields fields
args args
wantErr bool
want []testutil.Metric
}{
{
name: "threespan",
fields: fields{
acc: &mockAcc,
},
args: args{
t: Trace{
Span{
ID: "8090652509916334619",
TraceID: "2505404965370368069",
Name: "Child",
ParentID: "22964302721410078",
Timestamp: time.Unix(0, 1498688360851331000).UTC(),
Duration: time.Duration(53106) * time.Microsecond,
ServiceName: "trivial",
Annotations: []Annotation{},
BinaryAnnotations: []BinaryAnnotation{
BinaryAnnotation{
Key: "lc",
Value: "dHJpdmlhbA==",
Host: "2130706433:0",
ServiceName: "trivial",
Type: "STRING",
},
},
},
Span{
ID: "103618986556047333",
TraceID: "2505404965370368069",
Name: "Child",
ParentID: "22964302721410078",
Timestamp: time.Unix(0, 1498688360904552000).UTC(),
Duration: time.Duration(50410) * time.Microsecond,
ServiceName: "trivial",
Annotations: []Annotation{},
BinaryAnnotations: []BinaryAnnotation{
BinaryAnnotation{
Key: "lc",
Value: "dHJpdmlhbA==",
Host: "2130706433:0",
ServiceName: "trivial",
Type: "STRING",
},
},
},
Span{
ID: "22964302721410078",
TraceID: "2505404965370368069",
Name: "Parent",
ParentID: "22964302721410078",
Timestamp: time.Unix(0, 1498688360851318000).UTC(),
Duration: time.Duration(103680) * time.Microsecond,
ServiceName: "trivial",
Annotations: []Annotation{
Annotation{
Timestamp: time.Unix(0, 1498688360851325000).UTC(),
Value: "Starting child #0",
Host: "2130706433:0",
ServiceName: "trivial",
},
Annotation{
Timestamp: time.Unix(0, 1498688360904545000).UTC(),
Value: "Starting child #1",
Host: "2130706433:0",
ServiceName: "trivial",
},
Annotation{
Timestamp: time.Unix(0, 1498688360954992000).UTC(),
Value: "A Log",
Host: "2130706433:0",
ServiceName: "trivial",
},
},
BinaryAnnotations: []BinaryAnnotation{
BinaryAnnotation{
Key: "lc",
Value: "dHJpdmlhbA==",
Host: "2130706433:0",
ServiceName: "trivial",
Type: "STRING",
},
},
},
},
},
want: []testutil.Metric{
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "8090652509916334619",
"parent_id": "22964302721410078",
"trace_id": "2505404965370368069",
"service_name": "trivial",
"name": "Child",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(53106) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851331000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "8090652509916334619",
"parent_id": "22964302721410078",
"trace_id": "2505404965370368069",
"name": "Child",
"service_name": "trivial",
"annotation": "dHJpdmlhbA==",
"endpoint_host": "2130706433:0",
"annotation_key": "lc",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(53106) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851331000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "103618986556047333",
"parent_id": "22964302721410078",
"trace_id": "2505404965370368069",
"service_name": "trivial",
"name": "Child",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(50410) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360904552000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "103618986556047333",
"parent_id": "22964302721410078",
"trace_id": "2505404965370368069",
"name": "Child",
"service_name": "trivial",
"annotation": "dHJpdmlhbA==",
"endpoint_host": "2130706433:0",
"annotation_key": "lc",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(50410) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360904552000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "22964302721410078",
"parent_id": "22964302721410078",
"trace_id": "2505404965370368069",
"service_name": "trivial",
"name": "Parent",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(103680) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851318000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"service_name": "trivial",
"annotation": "Starting child #0",
"endpoint_host": "2130706433:0",
"id": "22964302721410078",
"parent_id": "22964302721410078",
"trace_id": "2505404965370368069",
"name": "Parent",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(103680) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851318000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"service_name": "trivial",
"annotation": "Starting child #1",
"endpoint_host": "2130706433:0",
"id": "22964302721410078",
"parent_id": "22964302721410078",
"trace_id": "2505404965370368069",
"name": "Parent",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(103680) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851318000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"parent_id": "22964302721410078",
"trace_id": "2505404965370368069",
"name": "Parent",
"service_name": "trivial",
"annotation": "A Log",
"endpoint_host": "2130706433:0",
"id": "22964302721410078",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(103680) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851318000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"trace_id": "2505404965370368069",
"service_name": "trivial",
"annotation": "dHJpdmlhbA==",
"annotation_key": "lc",
"id": "22964302721410078",
"parent_id": "22964302721410078",
"name": "Parent",
"endpoint_host": "2130706433:0",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(103680) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851318000).UTC(),
},
},
wantErr: false,
},
//// Test data from distributed trace repo sample json
// https://github.com/mattkanwisher/distributedtrace/blob/master/testclient/sample.json
{
name: "distributed_trace_sample",
fields: fields{
acc: &mockAcc,
},
args: args{
t: Trace{
Span{
ID: "6802735349851856000",
TraceID: "0:6802735349851856000",
Name: "main.dud",
ParentID: "6802735349851856000",
Timestamp: time.Unix(1, 0).UTC(),
Duration: 1,
ServiceName: "trivial",
Annotations: []Annotation{
Annotation{
Timestamp: time.Unix(0, 1433330263415871000).UTC(),
Value: "cs",
Host: "0:9410",
ServiceName: "go-zipkin-testclient",
},
},
BinaryAnnotations: []BinaryAnnotation{},
},
},
},
want: []testutil.Metric{
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "6802735349851856000",
"parent_id": "6802735349851856000",
"trace_id": "0:6802735349851856000",
"name": "main.dud",
"service_name": "trivial",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(1) * time.Nanosecond).Nanoseconds(),
},
Time: time.Unix(1, 0).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"annotation": "cs",
"endpoint_host": "0:9410",
"id": "6802735349851856000",
"parent_id": "6802735349851856000",
"trace_id": "0:6802735349851856000",
"name": "main.dud",
"service_name": "go-zipkin-testclient",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(1) * time.Nanosecond).Nanoseconds(),
},
Time: time.Unix(1, 0).UTC(),
},
},
},
}
for i, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
mockAcc.ClearMetrics()
l := &LineProtocolConverter{
acc: tt.fields.acc,
}
if err := l.Record(tt.args.t); (err != nil) != tt.wantErr {
t.Errorf("LineProtocolConverter.Record() error = %v, wantErr %v", err, tt.wantErr)
}
got := []testutil.Metric{}
for _, metric := range mockAcc.Metrics {
got = append(got, *metric)
}
if !cmp.Equal(got, tt.want) {
t.Errorf("LineProtocolConverter.Record()/%s/%d error = %s ", tt.name, i, cmp.Diff(got, tt.want))
}
})
}
}
func Test_microToTime(t *testing.T) {
type args struct {
micro int64
}
tests := []struct {
name string
args args
want time.Time
}{
{
name: "given zero micro seconds expected unix time zero",
args: args{
micro: 0,
},
want: time.Unix(0, 0).UTC(),
},
{
name: "given a million micro seconds expected unix time one",
args: args{
micro: 1000000,
},
want: time.Unix(1, 0).UTC(),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := microToTime(tt.args.micro); !reflect.DeepEqual(got, tt.want) {
t.Errorf("microToTime() = %v, want %v", got, tt.want)
}
})
}
}
func newAnnotation(micro int64) *zipkincore.Annotation {
return &zipkincore.Annotation{
Timestamp: micro,
}
}
func Test_minMax(t *testing.T) {
type args struct {
span *zipkincore.Span
}
tests := []struct {
name string
args args
now func() time.Time
wantMin time.Time
wantMax time.Time
}{
{
name: "Single annotation",
args: args{
span: &zipkincore.Span{
Annotations: []*zipkincore.Annotation{
newAnnotation(1000000),
},
},
},
wantMin: time.Unix(1, 0).UTC(),
wantMax: time.Unix(1, 0).UTC(),
},
{
name: "Three annotations",
args: args{
span: &zipkincore.Span{
Annotations: []*zipkincore.Annotation{
newAnnotation(1000000),
newAnnotation(2000000),
newAnnotation(3000000),
},
},
},
wantMin: time.Unix(1, 0).UTC(),
wantMax: time.Unix(3, 0).UTC(),
},
{
name: "Annotations are in the future",
args: args{
span: &zipkincore.Span{
Annotations: []*zipkincore.Annotation{
newAnnotation(3000000),
},
},
},
wantMin: time.Unix(2, 0).UTC(),
wantMax: time.Unix(3, 0).UTC(),
now: func() time.Time {
return time.Unix(2, 0).UTC()
},
},
{
name: "No Annotations",
args: args{
span: &zipkincore.Span{
Annotations: []*zipkincore.Annotation{},
},
},
wantMin: time.Unix(2, 0).UTC(),
wantMax: time.Unix(2, 0).UTC(),
now: func() time.Time {
return time.Unix(2, 0).UTC()
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if tt.now != nil {
now = tt.now
}
got, got1 := minMax(tt.args.span)
if !reflect.DeepEqual(got, tt.wantMin) {
t.Errorf("minMax() got = %v, want %v", got, tt.wantMin)
}
if !reflect.DeepEqual(got1, tt.wantMax) {
t.Errorf("minMax() got1 = %v, want %v", got1, tt.wantMax)
}
now = time.Now
})
}
}
func Test_host(t *testing.T) {
type args struct {
h *zipkincore.Endpoint
}
tests := []struct {
name string
args args
want string
}{
{
name: "Host Found",
args: args{
h: &zipkincore.Endpoint{
Ipv4: 1234,
Port: 8888,
},
},
want: "0.0.4.210:8888",
},
{
name: "No Host",
args: args{
h: nil,
},
want: "0.0.0.0",
},
{
name: "int overflow zipkin uses an int16 type as an unsigned int 16.",
args: args{
h: &zipkincore.Endpoint{
Ipv4: 1234,
Port: -1,
},
},
want: "0.0.4.210:65535",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := host(tt.args.h); got != tt.want {
t.Errorf("host() = %v, want %v", got, tt.want)
}
})
}
}
func Test_serviceName(t *testing.T) {
type args struct {
h *zipkincore.Endpoint
}
tests := []struct {
name string
args args
want string
}{
{
name: "Found ServiceName",
args: args{
h: &zipkincore.Endpoint{
ServiceName: "zipkin",
},
},
want: "zipkin",
},
{
name: "No ServiceName",
args: args{
h: nil,
},
want: "unknown",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := serviceName(tt.args.h); got != tt.want {
t.Errorf("serviceName() = %v, want %v", got, tt.want)
}
})
}
}

135
plugins/inputs/zipkin/handler.go Normal file
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@ -0,0 +1,135 @@
package zipkin
import (
"compress/gzip"
"io/ioutil"
"net/http"
"strings"
"sync"
"github.com/apache/thrift/lib/go/thrift"
"github.com/gorilla/mux"
"github.com/openzipkin/zipkin-go-opentracing/_thrift/gen-go/zipkincore"
)
// SpanHandler is an implementation of a Handler which accepts zipkin thrift
// span data and sends it to the recorder
type SpanHandler struct {
Path string
recorder Recorder
waitGroup *sync.WaitGroup
}
// NewSpanHandler returns a new server instance given path to handle
func NewSpanHandler(path string) *SpanHandler {
return &SpanHandler{
Path: path,
}
}
func cors(next http.HandlerFunc) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if origin := r.Header.Get("Origin"); origin != "" {
w.Header().Set(`Access-Control-Allow-Origin`, origin)
w.Header().Set(`Access-Control-Allow-Methods`, strings.Join([]string{
`OPTIONS`,
`POST`,
}, ", "))
w.Header().Set(`Access-Control-Allow-Headers`, strings.Join([]string{
`Accept`,
`Accept-Encoding`,
`Content-Length`,
`Content-Type`,
}, ", "))
w.Header().Set(`Access-Control-Expose-Headers`, strings.Join([]string{
`Date`,
}, ", "))
}
if r.Method == "OPTIONS" {
return
}
next.ServeHTTP(w, r)
}
}
// Register implements the Service interface. Register accepts zipkin thrift data
// POSTed to the path of the mux router
func (s *SpanHandler) Register(router *mux.Router, recorder Recorder) error {
handler := cors(http.HandlerFunc(s.Spans))
router.Handle(s.Path, handler).Methods("POST", "OPTIONS")
s.recorder = recorder
return nil
}
// Spans handles zipkin thrift spans
func (s *SpanHandler) Spans(w http.ResponseWriter, r *http.Request) {
defer r.Body.Close()
body := r.Body
var err error
// Handle gzip decoding of the body
if r.Header.Get("Content-Encoding") == "gzip" {
body, err = gzip.NewReader(r.Body)
if err != nil {
s.recorder.Error(err)
w.WriteHeader(http.StatusInternalServerError)
return
}
defer body.Close()
}
octets, err := ioutil.ReadAll(body)
if err != nil {
s.recorder.Error(err)
w.WriteHeader(http.StatusInternalServerError)
return
}
spans, err := unmarshalThrift(octets)
if err != nil {
s.recorder.Error(err)
w.WriteHeader(http.StatusInternalServerError)
return
}
trace := NewTrace(spans)
if err = s.recorder.Record(trace); err != nil {
s.recorder.Error(err)
w.WriteHeader(http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
func unmarshalThrift(body []byte) ([]*zipkincore.Span, error) {
buffer := thrift.NewTMemoryBuffer()
if _, err := buffer.Write(body); err != nil {
return nil, err
}
transport := thrift.NewTBinaryProtocolTransport(buffer)
_, size, err := transport.ReadListBegin()
if err != nil {
return nil, err
}
spans := make([]*zipkincore.Span, size)
for i := 0; i < size; i++ {
zs := &zipkincore.Span{}
if err = zs.Read(transport); err != nil {
return nil, err
}
spans[i] = zs
}
if err = transport.ReadListEnd(); err != nil {
return nil, err
}
return spans, nil
}

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package zipkin
import (
"bytes"
"io/ioutil"
"net/http"
"net/http/httptest"
"strconv"
"testing"
"time"
"github.com/google/go-cmp/cmp"
)
type MockRecorder struct {
Data Trace
Err error
}
func (m *MockRecorder) Record(t Trace) error {
m.Data = t
return nil
}
func (m *MockRecorder) Error(err error) {
m.Err = err
}
func TestSpanHandler(t *testing.T) {
dat, err := ioutil.ReadFile("testdata/threespans.dat")
if err != nil {
t.Fatalf("Could not find file %s\n", "testdata/threespans.dat")
}
w := httptest.NewRecorder()
r := httptest.NewRequest(
"POST",
"http://server.local/api/v1/spans",
ioutil.NopCloser(
bytes.NewReader(dat)))
handler := NewSpanHandler("/api/v1/spans")
mockRecorder := &MockRecorder{}
handler.recorder = mockRecorder
handler.Spans(w, r)
if w.Code != http.StatusNoContent {
t.Errorf("MainHandler did not return StatusNoContent %d", w.Code)
}
got := mockRecorder.Data
parentID := strconv.FormatInt(22964302721410078, 10)
want := Trace{
Span{
Name: "Child",
ID: "8090652509916334619",
TraceID: "22c4fc8ab3669045",
ParentID: parentID,
Timestamp: time.Unix(0, 1498688360851331*int64(time.Microsecond)).UTC(),
Duration: time.Duration(53106) * time.Microsecond,
ServiceName: "trivial",
Annotations: []Annotation{},
BinaryAnnotations: []BinaryAnnotation{
BinaryAnnotation{
Key: "lc",
Value: "trivial",
Host: "127.0.0.1",
ServiceName: "trivial",
Type: "STRING",
},
},
},
Span{
Name: "Child",
ID: "103618986556047333",
TraceID: "22c4fc8ab3669045",
ParentID: parentID,
Timestamp: time.Unix(0, 1498688360904552*int64(time.Microsecond)).UTC(),
Duration: time.Duration(50410) * time.Microsecond,
ServiceName: "trivial",
Annotations: []Annotation{},
BinaryAnnotations: []BinaryAnnotation{
BinaryAnnotation{
Key: "lc",
Value: "trivial",
Host: "127.0.0.1",
ServiceName: "trivial",
Type: "STRING",
},
},
},
Span{
Name: "Parent",
ID: "22964302721410078",
TraceID: "22c4fc8ab3669045",
ParentID: "22964302721410078",
Timestamp: time.Unix(0, 1498688360851318*int64(time.Microsecond)).UTC(),
Duration: time.Duration(103680) * time.Microsecond,
ServiceName: "trivial",
Annotations: []Annotation{
Annotation{
Timestamp: time.Unix(0, 1498688360851325*int64(time.Microsecond)).UTC(),
Value: "Starting child #0",
Host: "127.0.0.1",
ServiceName: "trivial",
},
Annotation{
Timestamp: time.Unix(0, 1498688360904545*int64(time.Microsecond)).UTC(),
Value: "Starting child #1",
Host: "127.0.0.1",
ServiceName: "trivial",
},
Annotation{
Timestamp: time.Unix(0, 1498688360954992*int64(time.Microsecond)).UTC(),
Value: "A Log",
Host: "127.0.0.1",
ServiceName: "trivial",
},
},
BinaryAnnotations: []BinaryAnnotation{
BinaryAnnotation{
Key: "lc",
Value: "trivial",
Host: "127.0.0.1",
ServiceName: "trivial",
Type: "STRING",
},
},
},
}
if !cmp.Equal(got, want) {
t.Fatalf("Got != Want\n %s", cmp.Diff(got, want))
}
}

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plugins/inputs/zipkin/testdata/cli_microservice.dat vendored Normal file
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[
{
"trace_id": 243463817635710260,
"name": "Concat",
"id": 3383422996321511664,
"parent_id": 4574092882326506380,
"annotations": [
{
"timestamp": 1499817952283903,
"value": "cs",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"timestamp": 1499817952286792,
"value": "cr",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
}
],
"binary_annotations": [
{
"key": "http.path",
"value": "L2NvbmNhdC8=",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"key": "http.url",
"value": "aHR0cDovL2xvY2FsaG9zdDo2MTAwMS9jb25jYXQv",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"key": "peer.hostname",
"value": "bG9jYWxob3N0",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"key": "span.kind",
"value": "Y2xpZW50",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"key": "http.method",
"value": "R0VU",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"key": "http.host",
"value": "bG9jYWxob3N0OjYxMDAx",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
}
],
"timestamp": 1499817952283903,
"duration": 2888,
"trace_id_high": 8269862291023777619
},
{
"trace_id": 243463817635710260,
"name": "Sum",
"id": 6036416808826525494,
"parent_id": 4574092882326506380,
"annotations": [
{
"timestamp": 1499817952286828,
"value": "cs",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"timestamp": 1499817952333847,
"value": "cr",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
}
],
"binary_annotations": [
{
"key": "span.kind",
"value": "Y2xpZW50",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"key": "http.method",
"value": "R0VU",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"key": "http.host",
"value": "bG9jYWxob3N0OjYxMDAx",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"key": "http.path",
"value": "L3N1bS8=",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"key": "http.url",
"value": "aHR0cDovL2xvY2FsaG9zdDo2MTAwMS9zdW0v",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"key": "peer.hostname",
"value": "bG9jYWxob3N0",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
}
],
"timestamp": 1499817952286828,
"duration": 47019,
"trace_id_high": 8269862291023777619
},
{
"trace_id": 243463817635710260,
"name": "Run",
"id": 4574092882326506380,
"annotations": [
{
"timestamp": 1499817952283897,
"value": "Call Concat",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
},
{
"timestamp": 1499817952286824,
"value": "Call Sum",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
}
],
"binary_annotations": [
{
"key": "lc",
"value": "Y2xp",
"annotation_type": "STRING",
"host": {
"ipv4": 0,
"port": 0,
"service_name": "cli"
}
}
],
"timestamp": 1499817952283881,
"duration": 50014,
"trace_id_high": 8269862291023777619
}
]
[
{
"trace_id": 243463817635710260,
"name": "myComplexQuery",
"id": 4254041670140233539,
"parent_id": 8633460035494236932,
"annotations": [
{
"timestamp": 1499817952307418,
"value": "cs",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"timestamp": 1499817952331909,
"value": "cr",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
}
],
"binary_annotations": [
{
"key": "sa",
"value": "UG9zdGdyZVNRTA==",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": 5432,
"service_name": "PostgreSQL",
"ipv6": "AAAAAAAAAAAAAAAAAAAAAQ=="
}
},
{
"key": "query",
"value": "U0VMRUNUIHJlY2lwZXMgRlJPTSBjb29rYm9vayBXSEVSRSB0b3BpYyA9ICd3b3JsZCBkb21pbmF0aW9uJw==",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"key": "span.kind",
"value": "cmVzb3VyY2U=",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"key": "peer.service",
"value": "UG9zdGdyZVNRTA==",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"key": "peer.hostname",
"value": "bG9jYWxob3N0",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"key": "peer.port",
"value": "AAAVOA==",
"annotation_type": "I32",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
}
],
"timestamp": 1499817952307418,
"duration": 24491,
"trace_id_high": 8269862291023777619
},
{
"trace_id": 243463817635710260,
"name": "Sum",
"id": 8633460035494236932,
"parent_id": 6036416808826525494,
"annotations": [
{
"timestamp": 1499817952287147,
"value": "sr",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"timestamp": 1499817952333348,
"value": "ss",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"timestamp": 1499817952296675,
"value": "MyEventAnnotation",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
}
],
"binary_annotations": [
{
"key": "span.kind",
"value": "c2VydmVy",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"key": "serverSide",
"value": "aGVyZQ==",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"key": "service",
"value": "c3ZjMg==",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"key": "key1",
"value": "dmFsdWUx",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
},
{
"key": "key2",
"value": "AAAAAgAAAAA=",
"annotation_type": "I32",
"host": {
"ipv4": 2130706433,
"port": -4534,
"service_name": "svc2"
}
}
],
"trace_id_high": 8269862291023777619
}
]

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[{
"trace_id": 6802735349851856000,
"name": "main.dud",
"id": 6802735349851856000,
"parent_id": null,
"annotations": [
{
"timestamp": 1433330263415871,
"value": "cs",
"host": {
"ipv4": 0,
"port": 9410,
"service_name": "go-zipkin-testclient"
},
"duration": null
},
{
"timestamp": 1433330263415872,
"value": "cr",
"host": {
"ipv4": 0,
"port": 9410,
"service_name": "go-zipkin-testclient"
},
"duration": null
}
],
"binary_annotations": [],
"debug": true
}]

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[
{
"trace_id": 2505404965370368069,
"name": "Child",
"id": 8090652509916334619,
"parent_id": 22964302721410078,
"annotations": [],
"binary_annotations": [
{
"key": "lc",
"value": "dHJpdmlhbA==",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": 0,
"service_name": "trivial"
}
}
],
"timestamp": 1498688360851331,
"duration": 53106
},
{
"trace_id": 2505404965370368069,
"name": "Child",
"id": 103618986556047333,
"parent_id": 22964302721410078,
"annotations": [],
"binary_annotations": [
{
"key": "lc",
"value": "dHJpdmlhbA==",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": 0,
"service_name": "trivial"
}
}
],
"timestamp": 1498688360904552,
"duration": 50410
},
{
"trace_id": 2505404965370368069,
"name": "Parent",
"id": 22964302721410078,
"annotations": [
{
"timestamp": 1498688360851325,
"value": "Starting child #0",
"host": {
"ipv4": 2130706433,
"port": 0,
"service_name": "trivial"
}
},
{
"timestamp": 1498688360904545,
"value": "Starting child #1",
"host": {
"ipv4": 2130706433,
"port": 0,
"service_name": "trivial"
}
},
{
"timestamp": 1498688360954992,
"value": "A Log",
"host": {
"ipv4": 2130706433,
"port": 0,
"service_name": "trivial"
}
}
],
"binary_annotations": [
{
"key": "lc",
"value": "dHJpdmlhbA==",
"annotation_type": "STRING",
"host": {
"ipv4": 2130706433,
"port": 0,
"service_name": "trivial"
}
}
],
"timestamp": 1498688360851318,
"duration": 103680
}
]

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package zipkin
import (
"context"
"fmt"
"log"
"net"
"net/http"
"strconv"
"sync"
"time"
"github.com/gorilla/mux"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/inputs"
)
const (
// DefaultPort is the default port zipkin listens on, which zipkin implementations
// expect.
DefaultPort = 9411
// DefaultRoute is the default route zipkin uses, and zipkin implementations
// expect.
DefaultRoute = "/api/v1/spans"
// DefaultShutdownTimeout is the max amount of time telegraf will wait
// for the plugin to shutdown
DefaultShutdownTimeout = 5
)
// Recorder represents a type which can record zipkin trace data as well as
// any accompanying errors, and process that data.
type Recorder interface {
Record(Trace) error
Error(error)
}
// Handler represents a type which can register itself with a router for
// http routing, and a Recorder for trace data collection.
type Handler interface {
Register(router *mux.Router, recorder Recorder) error
}
// BinaryAnnotation represents a zipkin binary annotation. It contains
// all of the same fields as might be found in its zipkin counterpart.
type BinaryAnnotation struct {
Key string
Value string
Host string // annotation.endpoint.ipv4 + ":" + annotation.endpoint.port
ServiceName string
Type string
}
// Annotation represents an ordinary zipkin annotation. It contains the data fields
// which will become fields/tags in influxdb
type Annotation struct {
Timestamp time.Time
Value string
Host string // annotation.endpoint.ipv4 + ":" + annotation.endpoint.port
ServiceName string
}
//Span represents a specific zipkin span. It holds the majority of the same
// data as a zipkin span sent via the thrift protocol, but is presented in a
// format which is more straightforward for storage purposes.
type Span struct {
ID string
TraceID string // zipkin traceid high concat with traceid
Name string
ParentID string
ServiceName string
Timestamp time.Time // If zipkin input is nil then time.Now()
Duration time.Duration
Annotations []Annotation
BinaryAnnotations []BinaryAnnotation
}
// Trace is an array (or a series) of spans
type Trace []Span
const sampleConfig = `
# path = "/api/v1/spans" # URL path for span data
# port = 9411 # Port on which Telegraf listens
`
// Zipkin is a telegraf configuration structure for the zipkin input plugin,
// but it also contains fields for the management of a separate, concurrent
// zipkin http server
type Zipkin struct {
ServiceAddress string
Port int
Path string
address string
handler Handler
server *http.Server
waitGroup *sync.WaitGroup
}
// Description is a necessary method implementation from telegraf.ServiceInput
func (z Zipkin) Description() string {
return "This plugin implements the Zipkin http server to gather trace and timing data needed to troubleshoot latency problems in microservice architectures."
}
// SampleConfig is a necessary method implementation from telegraf.ServiceInput
func (z Zipkin) SampleConfig() string {
return sampleConfig
}
// Gather is empty for the zipkin plugin; all gathering is done through
// the separate goroutine launched in (*Zipkin).Start()
func (z *Zipkin) Gather(acc telegraf.Accumulator) error { return nil }
// Start launches a separate goroutine for collecting zipkin client http requests,
// passing in a telegraf.Accumulator such that data can be collected.
func (z *Zipkin) Start(acc telegraf.Accumulator) error {
z.handler = NewSpanHandler(z.Path)
var wg sync.WaitGroup
z.waitGroup = &wg
router := mux.NewRouter()
converter := NewLineProtocolConverter(acc)
z.handler.Register(router, converter)
z.server = &http.Server{
Handler: router,
}
addr := ":" + strconv.Itoa(z.Port)
ln, err := net.Listen("tcp", addr)
if err != nil {
return err
}
z.address = ln.Addr().String()
log.Printf("I! Started the zipkin listener on %s", z.address)
go func() {
wg.Add(1)
defer wg.Done()
z.Listen(ln, acc)
}()
return nil
}
// Stop shuts the internal http server down with via context.Context
func (z *Zipkin) Stop() {
ctx, cancel := context.WithTimeout(context.Background(), DefaultShutdownTimeout)
defer z.waitGroup.Wait()
defer cancel()
z.server.Shutdown(ctx)
}
// Listen creates an http server on the zipkin instance it is called with, and
// serves http until it is stopped by Zipkin's (*Zipkin).Stop() method.
func (z *Zipkin) Listen(ln net.Listener, acc telegraf.Accumulator) {
if err := z.server.Serve(ln); err != nil {
// Because of the clean shutdown in `(*Zipkin).Stop()`
// We're expecting a server closed error at some point
// So we don't want to display it as an error.
// This interferes with telegraf's internal data collection,
// by making it appear as if a serious error occurred.
if err != http.ErrServerClosed {
acc.AddError(fmt.Errorf("E! Error listening: %v", err))
}
}
}
func init() {
inputs.Add("zipkin", func() telegraf.Input {
return &Zipkin{
Path: DefaultRoute,
Port: DefaultPort,
}
})
}

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package zipkin
import (
"bytes"
"fmt"
"io/ioutil"
"net/http"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"github.com/influxdata/telegraf/testutil"
)
func TestZipkinPlugin(t *testing.T) {
mockAcc := testutil.Accumulator{}
tests := []struct {
name string
thriftDataFile string //path name to a binary thrift data file which contains test data
wantErr bool
want []testutil.Metric
}{
{
name: "threespan",
thriftDataFile: "testdata/threespans.dat",
want: []testutil.Metric{
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "8090652509916334619",
"parent_id": "22964302721410078",
"trace_id": "22c4fc8ab3669045",
"service_name": "trivial",
"name": "Child",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(53106) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851331000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "8090652509916334619",
"parent_id": "22964302721410078",
"trace_id": "22c4fc8ab3669045",
"name": "Child",
"service_name": "trivial",
"annotation": "trivial", //base64: dHJpdmlhbA==
"endpoint_host": "127.0.0.1",
"annotation_key": "lc",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(53106) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851331000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "103618986556047333",
"parent_id": "22964302721410078",
"trace_id": "22c4fc8ab3669045",
"service_name": "trivial",
"name": "Child",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(50410) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360904552000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "103618986556047333",
"parent_id": "22964302721410078",
"trace_id": "22c4fc8ab3669045",
"name": "Child",
"service_name": "trivial",
"annotation": "trivial", //base64: dHJpdmlhbA==
"endpoint_host": "127.0.0.1",
"annotation_key": "lc",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(50410) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360904552000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "22964302721410078",
"parent_id": "22964302721410078",
"trace_id": "22c4fc8ab3669045",
"service_name": "trivial",
"name": "Parent",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(103680) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851318000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"service_name": "trivial",
"annotation": "Starting child #0",
"endpoint_host": "127.0.0.1",
"id": "22964302721410078",
"parent_id": "22964302721410078",
"trace_id": "22c4fc8ab3669045",
"name": "Parent",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(103680) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851318000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"service_name": "trivial",
"annotation": "Starting child #1",
"endpoint_host": "127.0.0.1",
"id": "22964302721410078",
"parent_id": "22964302721410078",
"trace_id": "22c4fc8ab3669045",
"name": "Parent",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(103680) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851318000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"parent_id": "22964302721410078",
"trace_id": "22c4fc8ab3669045",
"name": "Parent",
"service_name": "trivial",
"annotation": "A Log",
"endpoint_host": "127.0.0.1",
"id": "22964302721410078",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(103680) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851318000).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"trace_id": "22c4fc8ab3669045",
"service_name": "trivial",
"annotation": "trivial", //base64: dHJpdmlhbA==
"annotation_key": "lc",
"id": "22964302721410078",
"parent_id": "22964302721410078",
"name": "Parent",
"endpoint_host": "127.0.0.1",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(103680) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1498688360851318000).UTC(),
},
},
wantErr: false,
},
{
name: "distributed_trace_sample",
thriftDataFile: "testdata/distributed_trace_sample.dat",
want: []testutil.Metric{
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"id": "6802735349851856000",
"parent_id": "6802735349851856000",
"trace_id": "5e682bc21ce99c80",
"service_name": "go-zipkin-testclient",
"name": "main.dud",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(1) * time.Microsecond).Nanoseconds(),
},
//Time: time.Unix(1, 0).UTC(),
Time: time.Unix(0, 1433330263415871*int64(time.Microsecond)).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"annotation": "cs",
"endpoint_host": "0.0.0.0:9410",
"id": "6802735349851856000",
"parent_id": "6802735349851856000",
"trace_id": "5e682bc21ce99c80",
"name": "main.dud",
"service_name": "go-zipkin-testclient",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(1) * time.Microsecond).Nanoseconds(),
},
//Time: time.Unix(1, 0).UTC(),
Time: time.Unix(0, 1433330263415871*int64(time.Microsecond)).UTC(),
},
testutil.Metric{
Measurement: "zipkin",
Tags: map[string]string{
"annotation": "cr",
"endpoint_host": "0.0.0.0:9410",
"id": "6802735349851856000",
"parent_id": "6802735349851856000",
"trace_id": "5e682bc21ce99c80",
"name": "main.dud",
"service_name": "go-zipkin-testclient",
},
Fields: map[string]interface{}{
"duration_ns": (time.Duration(1) * time.Microsecond).Nanoseconds(),
},
Time: time.Unix(0, 1433330263415871*int64(time.Microsecond)).UTC(),
},
},
},
}
z := &Zipkin{
Path: "/api/v1/spans",
Port: 0,
}
err := z.Start(&mockAcc)
if err != nil {
t.Fatal("Failed to start zipkin server")
}
defer z.Stop()
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
mockAcc.ClearMetrics()
if err := postThriftData(tt.thriftDataFile, z.address); err != nil {
t.Fatalf("Posting data to http endpoint /api/v1/spans failed. Error: %s\n", err)
}
mockAcc.Wait(len(tt.want)) //Since the server is running concurrently, we need to wait for the number of data points we want to test to be added to the Accumulator.
if len(mockAcc.Errors) > 0 != tt.wantErr {
t.Fatalf("Got unexpected errors. want error = %v, errors = %v\n", tt.wantErr, mockAcc.Errors)
}
var got []testutil.Metric
for _, m := range mockAcc.Metrics {
got = append(got, *m)
}
if !cmp.Equal(tt.want, got) {
t.Fatalf("Got != Want\n %s", cmp.Diff(tt.want, got))
}
})
}
mockAcc.ClearMetrics()
z.Stop()
// Make sure there is no erroneous error on shutdown
if len(mockAcc.Errors) != 0 {
t.Fatal("Expected no errors on shutdown")
}
}
func postThriftData(datafile, address string) error {
dat, err := ioutil.ReadFile(datafile)
if err != nil {
return fmt.Errorf("could not read from data file %s", datafile)
}
req, err := http.NewRequest("POST", fmt.Sprintf("http://%s/api/v1/spans", address), bytes.NewReader(dat))
if err != nil {
return fmt.Errorf("HTTP request creation failed")
}
req.Header.Set("Content-Type", "application/x-thrift")
client := &http.Client{}
_, err = client.Do(req)
if err != nil {
return fmt.Errorf("HTTP POST request to zipkin endpoint %s failed %v", address, err)
}
return nil
}