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  1. Beam
  2. BEAM-6678

FlinkRunner does not checkpoint partition view of watermark holds

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.11.0
    • Component/s: runner-flink
    • Labels:
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      Description

      The FlinkRunner does not persist its view of the per-partition Watermark holds. This can lead to elements to be considered late after restoring from a savepoint or resuming a failed pipeline.

      Similar to the approach in BEAM-6650, we can recover the Watermarks by iterating through the keys of the state backend during recovery.

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              • Assignee:
                mxm Maximilian Michels
                Reporter:
                mxm Maximilian Michels
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