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Overview

This example shows how to use OpenTelemetry to instrument a Python application - e.g. a batch job. It supports exporting spans either to the console or to Jaeger.

Installation

$ pip install opentelemetry-api opentelemetry-sdk

Setup Jaeger Tracing

Run the Application

Console

  • Run the sample
$ # from this directory
$ python tracer.py

The output will be displayed at the console

AsyncRuntimeContext({'current_span': Span(name="baz", context=SpanContext(trace_id=0xf906f80f64d57c71ea8da4dfbbd2ddf2, span_id=0x5611c1407e06e4d7, trace_state={}))})
Span(name="baz", context=SpanContext(trace_id=0xf906f80f64d57c71ea8da4dfbbd2ddf2, span_id=0x5611c1407e06e4d7, trace_state={}), kind=SpanKind.INTERNAL, parent=Span(name="bar", context=SpanContext(trace_id=0xf906f80f64d57c71ea8da4dfbbd2ddf2, span_id=0x1b9db0e0cc1a3f60, trace_state={})), start_time=2019-11-07T21:26:45.934412Z, end_time=2019-11-07T21:26:45.934567Z)
Span(name="bar", context=SpanContext(trace_id=0xf906f80f64d57c71ea8da4dfbbd2ddf2, span_id=0x1b9db0e0cc1a3f60, trace_state={}), kind=SpanKind.INTERNAL, parent=Span(name="foo", context=SpanContext(trace_id=0xf906f80f64d57c71ea8da4dfbbd2ddf2, span_id=0x1d5d87441ec2f410, trace_state={})), start_time=2019-11-07T21:26:45.934396Z, end_time=2019-11-07T21:26:45.934576Z)
Span(name="foo", context=SpanContext(trace_id=0xf906f80f64d57c71ea8da4dfbbd2ddf2, span_id=0x1d5d87441ec2f410, trace_state={}), kind=SpanKind.INTERNAL, parent=None, start_time=2019-11-07T21:26:45.934369Z, end_time=2019-11-07T21:26:45.934580Z)

Jaeger

  • Run the sample
$ pip install opentelemetry-ext-jaeger
$ # from this directory
$ EXPORTER=jaeger python tracer.py

Jaeger UI

Open the Jaeger UI in your browser http://localhost:16686

Select `basic-service` under *Service Name* and click on *Find Traces*.

Click on the trace to view its details.

Collector

  • Start Collector
$ pip install docker-compose
$ cd docker
$ docker-compose up

* Run the sample

$ pip install opentelemetry-ext-otcollector
$ # from this directory
$ EXPORTER=collector python tracer.py

Collector is configured to export to Jaeger, follow Jaeger UI isntructions to find the traces.

Useful links

LICENSE

Apache License 2.0