[PR] [improve][pip] PIP-437: Adding Transaction Support to Pulsar Functions Through Auto-Transaction Wrapping [pulsar]

["wzhramc (via GitHub)" <gi...@apache.org>]

wzhramc opened a new pull request, #24703:
URL: https://github.com/apache/pulsar/pull/24703

   ### Motivation
   
     This PIP proposes extending Pulsar Functions with configuration-based automatic transaction support to enable exactly-once processing semantics. Currently, Pulsar
     Functions cannot publish to multiple topics transactionally, which is a significant limitation for use cases requiring atomic multi-topic operations.
   
     ### Modifications
   
     The implementation will allow functions to atomically process input messages and publish to multiple output topics within a single transaction without requiring code
     changes to the function implementation. This will be achieved through:
   
     - Adding transaction configuration options to FunctionConfig
     - Modifying JavaInstanceRunnable to support auto-transactions
     - Enhancing ContextImpl to track and use transactions
     - Adding metrics for monitoring transaction usage in functions
   
     ### Verifying this change
   
     - [ ] Make sure that the change passes the CI checks.
   
     This change will add tests and can be verified through:
     - Unit tests for transaction-enabled function execution
     - Integration tests for end-to-end transaction processing
   
     ### Does this pull request potentially affect one of the following parts:
   
     - [x] The public API
     - [x] The metrics
   
     ### Documentation
   
     - [ ] `doc-required` <!-- Will update docs after implementation -->
   


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Re: [PR] [improve][pip] PIP-439: Adding Transaction Support to Pulsar Functions Through Auto-Transaction Wrapping [pulsar]

["wzhramc (via GitHub)" <gi...@apache.org>]

wzhramc closed pull request #24703: [improve][pip] PIP-439: Adding Transaction Support to Pulsar Functions Through Auto-Transaction Wrapping
URL: https://github.com/apache/pulsar/pull/24703


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Re: [PR] [improve][pip] PIP-437: Adding Transaction Support to Pulsar Functions Through Auto-Transaction Wrapping [pulsar]

["github-actions[bot] (via GitHub)" <gi...@apache.org>]

github-actions[bot] commented on PR #24703:
URL: https://github.com/apache/pulsar/pull/24703#issuecomment-3254313675

   @wzhramc Please add the following content to your PR description and select a checkbox:
   ```
   - [ ] `doc` <!-- Your PR contains doc changes -->
   - [ ] `doc-required` <!-- Your PR changes impact docs and you will update later -->
   - [ ] `doc-not-needed` <!-- Your PR changes do not impact docs -->
   - [ ] `doc-complete` <!-- Docs have been already added -->
   ```


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