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https://issues.apache.org/jira/browse/FLINK-13371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16891079#comment-16891079
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Till Rohrmann commented on FLINK-13371:
---------------------------------------
Please don't forget to add the proper fix version if the issue is release
relevant [~azagrebin].
> Release partitions in JM if producer restarts
> ---------------------------------------------
>
> Key: FLINK-13371
> URL: https://issues.apache.org/jira/browse/FLINK-13371
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination, Runtime / Network
> Affects Versions: 1.9.0
> Reporter: Andrey Zagrebin
> Priority: Critical
> Fix For: 1.9.0
>
>
> As discussed in FLINK-13245, there can be a case that producer does not even
> detect any consumption attempt if consumer fails before the connection is
> established. It means we cannot fully rely on shuffle service for the release
> on consumption in case of consumer failure. When producer restarts it will
> leak partitions from the previous attempt. Previously we had an explicit
> release call for this case in Execution.cancel/suspend. Basically JM has to
> explicitly release all partitions produced by the previous task execution
> attempt in case of producer restart, including `released on consumption`
> partitions. For this change, we might need to track all partitions in
> PartitionTrackerImpl.
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