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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/04 20:08:29 UTC

[GitHub] [beam] damccorm opened a new issue, #20928: WriteFiles withRunnerDeterminedSharding for unbounded data doesn't work with merging windows

damccorm opened a new issue, #20928:
URL: https://github.com/apache/beam/issues/20928

   Currently the implementation of `withRunnerDeterminedShardingUnbounded` uses a stateful DoFn to achieve the grouping and batching of the input elements, which doesn't support session windows. One possible way is to add another GBK prior to the stateful DoFn to first get session windows merged and reify the window before invoking the sateful DoFn. 
   
   Imported from Jira [BEAM-12040](https://issues.apache.org/jira/browse/BEAM-12040). Original Jira may contain additional context.
   Reported by: sychen.


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