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https://issues.apache.org/jira/browse/FLINK-20013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17229454#comment-17229454
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Arvid Heise commented on FLINK-20013:
-------------------------------------
Shouldn't that be backported to 1.11 (and 1.10)?
> BoundedBlockingSubpartition may leak network buffer if task is failed or
> canceled
> ---------------------------------------------------------------------------------
>
> Key: FLINK-20013
> URL: https://issues.apache.org/jira/browse/FLINK-20013
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Network
> Reporter: Yingjie Cao
> Assignee: Nicholas Jiang
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.12.0
>
>
> BoundedBlockingSubpartition may leak network buffer if task is failed or
> canceled. We need to recycle the current BufferConsumer when task is failed
> or canceled.
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