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https://issues.apache.org/jira/browse/FLINK-12842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-12842:
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Labels: pull-request-available (was: )
> Fix invalid check released state during ResultPartition#createSubpartitionView
> ------------------------------------------------------------------------------
>
> Key: FLINK-12842
> URL: https://issues.apache.org/jira/browse/FLINK-12842
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Network
> Reporter: zhijiang
> Assignee: zhijiang
> Priority: Minor
> Labels: pull-request-available
>
> Currently in {{ResultPartition#createSubpartitionView}} it would check
> whether this partition is released before creating view. But this check is
> based on {{refCnt != -1}} which seems invalid, because the reference counter
> would not always reflect the released state.
> In the case of {{ResultPartition#release/fail}}, the reference counter is not
> set to -1. Even if in the case of {{ResultPartition#onConsumedSubpartition}},
> the reference counter seems also no chance to be -1.
> So we could check the real {{isReleased}} state during creating view instead
> of reference counter.
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