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https://issues.apache.org/jira/browse/BEAM-1392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15853183#comment-15853183
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ASF GitHub Bot commented on BEAM-1392:
--------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/beam/pull/1920
> DoFn teardown not called on empty partitions
> --------------------------------------------
>
> Key: BEAM-1392
> URL: https://issues.apache.org/jira/browse/BEAM-1392
> Project: Beam
> Issue Type: Bug
> Components: runner-spark
> Reporter: Aviem Zur
> Assignee: Aviem Zur
>
> DoFn teardown is not called on empty partitions.
> Discovered in a long running Kafka pipeline (read from Kafka -> write to
> Kafka) where some partitions did not have data and Kafka producers where
> being created but not closed, eventually resulting in {{Too many open files}}
> exception.
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