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  1. Flink
  2. FLINK-18404

Make unaligned checkpoints rescalable

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Details

    • Improvement
    • Status: Closed
    • Critical
    • Resolution: Duplicate
    • 1.12.0
    • None
    • Runtime / Checkpointing
    • None

    Description

      Currently, the in-flight data of unaligned checkpoints is not handled properly in rescaling scenarios. We guarded with a fail-safe exception against it. A proper rescaling support would increase the benefits of unaligned checkpoints.

      To rescale in-flight data, the state shard needs to be redistributed across all new assigned tasks and some additional filter needs to ensure that only the relevant key-groups are actually recovered (or processed).

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          duplicates

          Sub-task - The sub-task of the issue FLINK-17979 Support rescaling for Unaligned Checkpoints

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              arvid Arvid Heise
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              Dates

                Created:
                Updated:
                Resolved: