[PR] [FnApi Java] Close named data stream multiplexers once no bundle is u… [beam]

Wed, 08 Jul 2026 18:10:01 -0700 


krishnamanchikalapudi opened a new pull request, #39255:
URL: https://github.com/apache/beam/pull/39255

   …sing them
   
   Named data streams introduced in #38863 provide bundle isolation, but the 
SDK harness cached one multiplexer (and its underlying gRPC stream) per 
(endpoint, dataStreamId) forever. A runner assigning fresh data stream ids over 
time would leak gRPC streams and memory in the harness.
   
   This reference counts named data stream usage per bundle in 
ProcessBundleHandler and closes the multiplexers for a named data stream once 
no bundle is retaining it. The default (unnamed) data stream keeps its 
lifetime-of-the-harness behavior.
   
   Also adds a fork-friendly GitHub-hosted CI workflow that builds and tests 
the Java SDK harness since upstream PreCommit workflows require self-hosted 
runners.
   
   Fixes #39001 (Java SDK harness portion)
   
   **Please** add a meaningful description for your change here
   
   ------------------------
   
   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)
   
------------------------------------------------------------------------------------------------
   [![Build python source distribution and 
wheels](https://github.com/apache/beam/actions/workflows/build_wheels.yml/badge.svg?event=schedule&&?branch=master)](https://github.com/apache/beam/actions?query=workflow%3A%22Build+python+source+distribution+and+wheels%22+branch%3Amaster+event%3Aschedule)
   [![Python 
tests](https://github.com/apache/beam/actions/workflows/python_tests.yml/badge.svg?event=schedule&&?branch=master)](https://github.com/apache/beam/actions?query=workflow%3A%22Python+Tests%22+branch%3Amaster+event%3Aschedule)
   [![Java 
tests](https://github.com/apache/beam/actions/workflows/java_tests.yml/badge.svg?event=schedule&&?branch=master)](https://github.com/apache/beam/actions?query=workflow%3A%22Java+Tests%22+branch%3Amaster+event%3Aschedule)
   [![Go 
tests](https://github.com/apache/beam/actions/workflows/go_tests.yml/badge.svg?event=schedule&&?branch=master)](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]

Reply via email to