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https://github.com/open-telemetry/opentelemetry-go.git
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d9210f5676
* Add zipkin exporter The zipkin exporter implements the SpanBatcher interface. It follows the current-at-the-time-of-writing document about conversion from OpenTelemetry span data to Zipkin spans. Which means that endpoint information is not yet filled. * Fix typo in docs * Add a zipkin example This sends span information to a locally running zipkin collector. Currently I have a problem getting the collector to show me the spans after accepting them with HTTP 202. Not sure if this is because of missing endpoint information. * Make gitignore consistent The fixed paths should be prefixed with a slash. The "relative" paths mean that git will ignore all the files that end with the path. * Add tests for zipkin exporter
80 lines
2.1 KiB
Go
80 lines
2.1 KiB
Go
// Copyright 2020, OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Command zipkin is an example program that creates spans
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// and uploads to openzipkin collector.
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package main
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import (
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"context"
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"log"
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"os"
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"time"
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"go.opentelemetry.io/otel/api/global"
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"go.opentelemetry.io/otel/exporters/trace/zipkin"
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sdktrace "go.opentelemetry.io/otel/sdk/trace"
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)
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var logger = log.New(os.Stderr, "zipkin-example", log.Ldate|log.Ltime|log.Llongfile)
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// initTracer creates a new trace provider instance and registers it as global trace provider.
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func initTracer() {
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// Create Zipkin Exporter
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exporter, err := zipkin.NewExporter(
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"http://localhost:9411/api/v2/spans",
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zipkin.WithLogger(logger),
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)
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if err != nil {
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log.Fatal(err)
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}
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// For demoing purposes, always sample. In a production application, you should
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// configure this to a trace.ProbabilitySampler set at the desired
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// probability.
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tp, err := sdktrace.NewProvider(
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sdktrace.WithConfig(sdktrace.Config{DefaultSampler: sdktrace.AlwaysSample()}),
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sdktrace.WithBatcher(exporter,
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sdktrace.WithScheduleDelayMillis(5),
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sdktrace.WithMaxExportBatchSize(10),
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),
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)
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if err != nil {
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log.Fatal(err)
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}
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global.SetTraceProvider(tp)
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}
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func main() {
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initTracer()
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ctx := context.Background()
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tr := global.TraceProvider().Tracer("component-main")
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ctx, span := tr.Start(ctx, "foo")
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<-time.After(6 * time.Millisecond)
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bar(ctx)
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<-time.After(6 * time.Millisecond)
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span.End()
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<-time.After(24 * time.Millisecond)
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}
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func bar(ctx context.Context) {
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tr := global.TraceProvider().Tracer("component-bar")
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_, span := tr.Start(ctx, "bar")
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<-time.After(6 * time.Millisecond)
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span.End()
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}
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