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Posted to issues@beam.apache.org by "Reuven Lax (Jira)" <ji...@apache.org> on 2021/12/13 21:41:00 UTC

[jira] [Created] (BEAM-13452) Optimize Flink runner timer and OnWindowExpiration

Reuven Lax created BEAM-13452:
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             Summary: Optimize Flink runner timer and OnWindowExpiration
                 Key: BEAM-13452
                 URL: https://issues.apache.org/jira/browse/BEAM-13452
             Project: Beam
          Issue Type: New Feature
          Components: runner-flink
            Reporter: Reuven Lax


Currently Flink batch needs to load all keys in memory to expire timers and call OnWindowExpiration. We could instead use the mechanism used by RequiresTimeSortedInput ([https://github.com/apache/beam/blob/v2.34.0/runners/flink/src/main/java/org/apache/beam/runners/flink/FlinkBatchTransformTranslators.java#L702]) to expire as we go.



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