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Posted to issues@beam.apache.org by "Niel Markwick (Jira)" <ji...@apache.org> on 2020/04/16 11:20:00 UTC

[jira] [Assigned] (BEAM-9505) DoFn.StartBundle called multiple times when streaming

     [ https://issues.apache.org/jira/browse/BEAM-9505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Niel Markwick reassigned BEAM-9505:
-----------------------------------

    Assignee: Niel Markwick  (was: Boyuan Zhang)

> DoFn.StartBundle called multiple times when streaming
> -----------------------------------------------------
>
>                 Key: BEAM-9505
>                 URL: https://issues.apache.org/jira/browse/BEAM-9505
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-dataflow
>    Affects Versions: 2.18.0, 2.19.0
>            Reporter: Niel Markwick
>            Assignee: Niel Markwick
>            Priority: Major
>
> When using DataflowRunner in streaming mode. DoFn.StartBundle is called multiple times for the same bundle.
>  
> This does not occur with DirectRunner. 
> This breaks DoFn's which require per-bundle setup and teardown  procedures.



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