PyPI 官网下载 | jaeger-client-3.2.0.tar.gz

[![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov] [![PyPI version][pypi-img]][pypi] # Jaeger Bindings for Python OpenTracing API This is a client-side library that can be used to instrument Python apps for distributed trace collection, and to send those traces to Jaeger. See the [OpenTracing Python API](https://github.com/opentracing/opentracing-python) for additional detail. ## Installation ```bash apt-get install python-dev pip install jaeger-client ``` ## Getting Started (under construction) If your python code is already instrumented for OpenTracing, you can simply switch to Jaeger's implementation with: ```python import opentracing from jaeger_client import Config if __name__ == "__main__": config = Config(config={}, # usually read from some yaml config service_name='your-app-name') tracer = config.initialize_tracer() with opentracing.tracer.start_span('TestSpan') as span: span.log_event('test message', payload={'life': 42}) tracer.close() # flush any buffered spans ``` ## Configuration (under construction) See [Config class](jaeger_client/config.py). ## Debug Traces (Forced Sampling) ### Programmatically The OpenTracing API defines a `sampling.priority` standard tag that can be used to affect the sampling of a span and its children: ```python from opentracing.ext import tags as ext_tags span.set_tag(ext_tags.SAMPLING_PRIORITY, 1) ``` ### Via HTTP Headers Jaeger Tracer also understands a special HTTP Header `jaeger-debug-id`, which can be set in the incoming request, e.g. ```sh curl -H "jaeger-debug-id: some-correlation-id" http://myhost.com ``` When Jaeger sees this header in the request that otherwise has no tracing context, it ensures that the new trace started for this request will be sampled in the "debug" mode (meaning it should survive all downsampling that might happen in the collection pipeline), and the root span will have a tag as if this statement was executed: ```python span.set_tag('jaeger-debug-id', 'some-correlation-id') ``` This allows using Jaeger UI to find the trace by this tag. ## License [The MIT License](LICENSE). [ci-img]: https://travis-ci.org/uber/jaeger-client-python.svg?branch=master [ci]: https://travis-ci.org/uber/jaeger-client-python [cov-img]: https://coveralls.io/repos/uber/jaeger-client-python/badge.svg?branch=master [cov]: https://coveralls.io/github/uber/jaeger-client-python?branch=master [pypi-img]: https://badge.fury.io/py/jaeger-client.svg [pypi]: https://badge.fury.io/py/jaeger-client