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This is an automated backport of the following:

Please merge this PR after all checks have passed.

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Summary of Changes

Hello @feeblefakie, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request backports a crucial fix that refines the error handling mechanism for one-phase commit operations. The primary goal is to provide more granular and accurate exception types when commit failures occur, specifically reclassifying certain ExecutionExceptions as UnknownTransactionStatusExceptions to better reflect the state of the transaction. This change improves the robustness and clarity of error reporting within the transaction system.

Highlights

  • Error Handling Refinement: The onePhaseCommitRecords method in CommitHandler.java has been updated to declare more specific exceptions (CommitConflictException, UnknownTransactionStatusException) in its signature, replacing the more general CommitException.
  • Exception Type Change: Within the onePhaseCommitRecords method, ExecutionExceptions caught during the one-phase commit process are now re-thrown as UnknownTransactionStatusExceptions, providing more precise information about the transaction's status when an underlying execution error occurs.
  • Test Updates: Corresponding unit tests in CommitHandlerTest.java and CommitHandlerWithGroupCommitTest.java have been updated to reflect these changes, including modifications to method signatures, test names, and expected exception types in assertions.
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Code Review

The pull request backports a fix for error handling in one-phase commits, changing the exception type thrown when a storage-level ExecutionException occurs. A potential issue was identified where the code throws UnknownTransactionStatusException even before any data has been written. I've suggested a modification to ensure that a CommitException is thrown when the exception occurs during mutation composition.

@brfrn169 brfrn169 merged commit e46f8a3 into 3 Jul 7, 2025
56 checks passed
@brfrn169 brfrn169 deleted the 3-pull-2826 branch July 7, 2025 10:48
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