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Posted to issues@beam.apache.org by "Beam JIRA Bot (Jira)" <ji...@apache.org> on 2021/07/04 17:21:02 UTC

[jira] [Updated] (BEAM-12040) WriteFiles withRunnerDeterminedSharding for unbounded data doesn't work with merging windows

     [ https://issues.apache.org/jira/browse/BEAM-12040?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Beam JIRA Bot updated BEAM-12040:
---------------------------------
    Labels:   (was: stale-assigned)

> WriteFiles withRunnerDeterminedSharding for unbounded data doesn't work with merging windows
> --------------------------------------------------------------------------------------------
>
>                 Key: BEAM-12040
>                 URL: https://issues.apache.org/jira/browse/BEAM-12040
>             Project: Beam
>          Issue Type: Improvement
>          Components: io-java-files
>            Reporter: Siyuan Chen
>            Priority: P2
>          Time Spent: 5h 50m
>  Remaining Estimate: 0h
>
> 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. 



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