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Posted to issues@flink.apache.org by "Stephan Ewen (Jira)" <ji...@apache.org> on 2020/05/24 21:45:00 UTC

[jira] [Created] (FLINK-17906) Fix performance issues in WatermarkOutputMultiplexer

Stephan Ewen created FLINK-17906:
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             Summary: Fix performance issues in WatermarkOutputMultiplexer
                 Key: FLINK-17906
                 URL: https://issues.apache.org/jira/browse/FLINK-17906
             Project: Flink
          Issue Type: Improvement
          Components: API / Core
            Reporter: Stephan Ewen
            Assignee: Stephan Ewen
             Fix For: 1.11.0


The WatermarkOutputMultiplexer has some potential for performance improvements:
  - not using volatile variables (all accesses are anyways from the mailbox of under the legacy checkpoint lock)
  - Using some boolean logic instead of branches



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