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https://issues.apache.org/jira/browse/BEAM-3471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16323985#comment-16323985
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Etienne Chauchot commented on BEAM-3471:
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For the story: I detected the lack of such a feature while coding the metrics
push feature (https://issues.apache.org/jira/browse/BEAM-3310) for which I
needed to push at the end of the batch to get up to date metrics and not the
ones of the last push (potentially _pushPeriod_ old)
> Create a callback triggered at the end of a batch in spark runner
> -----------------------------------------------------------------
>
> Key: BEAM-3471
> URL: https://issues.apache.org/jira/browse/BEAM-3471
> Project: Beam
> Issue Type: Improvement
> Components: runner-spark
> Reporter: Etienne Chauchot
> Assignee: Jean-Baptiste Onofré
>
> In the future we might add new features to the runners for which we might
> need to do some processing at the end of a batch. Currently there is not
> unique place (a callback) to add this processing.
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