stankiewicz opened a new pull request, #39152:
URL: https://github.com/apache/beam/pull/39152
This PR enables per-element OpenTelemetry context propagation for Runner v1,
specifically targeting the Dataflow worker (Windmill sink and source) and DoFn
execution. This ensures that distributed traces correctly link parent and child
spans across different pipeline steps.
- DoFn Execution (SimpleDoFnRunner): Updated processElement to wrap the
invocation in an OpenTelemetry Scope tied to the element's
OpenTelemetryContext. This ensures spans created inside the DoFn are properly
parented to the element's trace.
- Context Serialization (WindmillSink): Extracts the OTel context from
outbound WindowedValue records and injects it into the
BeamFnApi.Elements.ElementMetadata for transmission.
- Context Deserialization (UngroupedWindmillReader & WindmillKeyedWorkItem):
Extracts the OTel context from incoming ElementMetadata via
OpenTelemetryContextPropagator and attaches it to the constructed WindowedValue.
- Context Refresh (WindowedValues): Updated getOpenTelemetryContext() to
dynamically pull Context.current() if the context changes during ParDo
execution, ensuring the recent trace state is stored.
------------------------
Thank you for your contribution! Follow this checklist to help us
incorporate your contribution quickly and easily:
- [ ] Mention the appropriate issue in your description (for example:
`addresses #123`), if applicable. This will automatically add a link to the
pull request in the issue. If you would like the issue to automatically close
on merging the pull request, comment `fixes #<ISSUE NUMBER>` instead.
- [ ] Update `CHANGES.md` with noteworthy changes.
- [ ] If this contribution is large, please file an Apache [Individual
Contributor License Agreement](https://www.apache.org/licenses/icla.pdf).
See the [Contributor Guide](https://beam.apache.org/contribute) for more
tips on [how to make review process
smoother](https://github.com/apache/beam/blob/master/CONTRIBUTING.md#make-the-reviewers-job-easier).
To check the build health, please visit
[https://github.com/apache/beam/blob/master/.test-infra/BUILD_STATUS.md](https://github.com/apache/beam/blob/master/.test-infra/BUILD_STATUS.md)
GitHub Actions Tests Status (on master branch)
------------------------------------------------------------------------------------------------
[](https://github.com/apache/beam/actions?query=workflow%3A%22Build+python+source+distribution+and+wheels%22+branch%3Amaster+event%3Aschedule)
[](https://github.com/apache/beam/actions?query=workflow%3A%22Python+Tests%22+branch%3Amaster+event%3Aschedule)
[](https://github.com/apache/beam/actions?query=workflow%3A%22Java+Tests%22+branch%3Amaster+event%3Aschedule)
[](https://github.com/apache/beam/actions?query=workflow%3A%22Go+tests%22+branch%3Amaster+event%3Aschedule)
See [CI.md](https://github.com/apache/beam/blob/master/CI.md) for more
information about GitHub Actions CI or the [workflows
README](https://github.com/apache/beam/blob/master/.github/workflows/README.md)
to see a list of phrases to trigger workflows.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
