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Posted to issues@flink.apache.org by "Au-Miner (via GitHub)" <gi...@apache.org> on 2026/04/22 04:01:59 UTC

[PR] [FLINK-39210][table] Fixed Memory Leak Issue in Flink SQL with Multiple Temporal Joins [flink]

Au-Miner opened a new pull request, #27992:
URL: https://github.com/apache/flink/pull/27992

   
   ## What is the purpose of the change
   
   Fix Memory Leak Issue in Flink SQL with Multiple Temporal Joins.
   
   ## Brief change log
   
   - Clean up per-key bookkeeping (nextLeftIndex, registeredTimer) when both probe and build sides are fully drained for a key, preventing unbounded state growth in jobs without idle-state retention.
   - Remove tombstoned (DELETE/UPDATE_BEFORE) versioned rows from rightState during watermark-driven cleanup, allowing the state backend to fully reclaim per-key entries for deleted versioned rows.
   
   ## Verifying this change
   
   This change is verified by new and existing tests in `TemporalRowTimeJoinOperatorTest#testPerKeyStateIsCleanedUpWithoutStateRetention`.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): no
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no
     - The serializers: no
     - The runtime per-record code paths (performance sensitive): no
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
     - The S3 file system connector: no
   
   ## Documentation
   
     - Does this pull request introduce a new feature? no
     - If yes, how is the feature documented? not applicable


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Re: [PR] [FLINK-39210][table] Fixed Memory Leak Issue in Flink SQL with Multiple Temporal Joins [flink]

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

github-actions[bot] commented on PR #27992:
URL: https://github.com/apache/flink/pull/27992#issuecomment-5366027447

   This PR has been closed since it has not had any activity in 120 days. 
   If you feel like this was a mistake, or you would like to continue working on it, 
   please feel free to re-open the PR and ask for a review.


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Re: [PR] [FLINK-39210][table] Fixed Memory Leak Issue in Flink SQL with Multiple Temporal Joins [flink]

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

github-actions[bot] commented on PR #27992:
URL: https://github.com/apache/flink/pull/27992#issuecomment-5031133967

   This PR is being marked as stale since it has not had any activity in the last 90 days. 
   If you would like to keep this PR alive, please leave a comment asking for a review. 
   If the PR has merge conflicts, update it with the latest from the base branch.
   
   If you are having difficulty finding a reviewer, please reach out to the 
   community, contact details can be found here: https://flink.apache.org/what-is-flink/community/
   
   If this PR is no longer valid or desired, please feel free to close it. 
   If no activity occurs in the next 30 days, it will be automatically closed.


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Re: [PR] [FLINK-39210][table] Fixed Memory Leak Issue in Flink SQL with Multiple Temporal Joins [flink]

Posted by "flinkbot (via GitHub)" <gi...@apache.org>.

flinkbot commented on PR #27992:
URL: https://github.com/apache/flink/pull/27992#issuecomment-4293436631

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   ## CI report:
   
   * 49895aec79ca15b8b0ad2c7a02ba3b7fae5cd3d2 UNKNOWN
   
   <details>
   <summary>Bot commands</summary>
     The @flinkbot bot supports the following commands:
   
    - `@flinkbot run azure` re-run the last Azure build
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Re: [PR] [FLINK-39210][table] Fixed Memory Leak Issue in Flink SQL with Multiple Temporal Joins [flink]

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

github-actions[bot] closed pull request #27992: [FLINK-39210][table] Fixed Memory Leak Issue in Flink SQL with Multiple Temporal Joins
URL: https://github.com/apache/flink/pull/27992


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