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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/04 18:14:36 UTC

[GitHub] [beam] damccorm opened a new issue, #20575: FlinkStateInternals assumes that null value for accumulator means that the accumulator was never created

damccorm opened a new issue, #20575:
URL: https://github.com/apache/beam/issues/20575

   FlinkStateInternals assumes that null value for accumulator means that the accumulator was never created. There are combiners which have non-null values returned by createAccumulator but null values after merging.
   
   It would be good to have a ValidatesRunner test that covers an accumulator with a null final value and non-null initial value.
   
   Code link:
   https://github.com/apache/beam/blob/v2.24.0/runners/flink/src/main/java/org/apache/beam/runners/flink/translation/wrappers/streaming/state/FlinkStateInternals.java#L507
   
   Imported from Jira [BEAM-11063](https://issues.apache.org/jira/browse/BEAM-11063). Original Jira may contain additional context.
   Reported by: lcwik.


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