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  1. Flink
  2. FLINK-7001

Improve performance of Sliding Time Window with pane optimization

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: API / DataStream
    • Labels:
      None

      Description

      Currently, the implementation of time-based sliding windows treats each window individually and replicates records to each window. For a window of 10 minute size that slides by 1 second the data is replicated 600 fold (10 minutes / 1 second). We can optimize sliding window by divide windows into panes (aligned with slide), so that we can avoid record duplication and leverage the checkpoint.

      I will attach a more detail design doc to the issue.

      The following issues are similar to this issue: FLINK-5387, FLINK-6990

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              • Assignee:
                Unassigned
                Reporter:
                jark Jark Wu
              • Votes:
                4 Vote for this issue
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                33 Start watching this issue

                Dates

                • Created:
                  Updated: