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Posted to issues@flink.apache.org by "MartijnVisser (via GitHub)" <gi...@apache.org> on 2026/10/06 09:45:06 UTC

[PR] [BP-2.3][FLINK-36146][connector-base] Fix SingleThreadFetcherManager race condition [flink]

MartijnVisser opened a new pull request, #29401:
URL: https://github.com/apache/flink/pull/29401

   Unchanged backport of #29386, which is approved but not merged on master yet.
   
   `getRunningFetcher()` has the same `isEmpty()`-then-`next()` race on release-2.3, so `addSplits()` can fail with `NoSuchElementException` when a fetcher removes itself in between.
   
   `testGetRunningFetcherSurvivesFetcherRemovalInToctouWindow` fails without the fix, with the ticket's `NoSuchElementException`, and passes with it on JDK 17. `SplitFetcherManagerTest`, `spotless:check` and `checkstyle:check` pass.
   
   ##### Was generative AI tooling used to co-author this PR?
   
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   Generated-by: Claude Code (Claude Opus 5.5)
   


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Re: [PR] [BP-2.3][FLINK-36146][connector-base] Fix SingleThreadFetcherManager race condition [flink]

Posted by "MartijnVisser (via GitHub)" <gi...@apache.org>.
MartijnVisser merged PR #29401:
URL: https://github.com/apache/flink/pull/29401


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Re: [PR] [BP-2.3][FLINK-36146][connector-base] Fix SingleThreadFetcherManager race condition [flink]

Posted by "flinkbot (via GitHub)" <gi...@apache.org>.
flinkbot commented on PR #29401:
URL: https://github.com/apache/flink/pull/29401#issuecomment-6013767360

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   ## CI report:
   
   * 7335c113c9faaea0200c45c3b4e081b6b0deb593 UNKNOWN
   
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