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https://issues.apache.org/jira/browse/FLINK-10033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16567687#comment-16567687
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ASF GitHub Bot commented on FLINK-10033:
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TisonKun commented on issue #6480: [FLINK-10033] [runtime] Task releases
reference to AbstractInvokable
URL: https://github.com/apache/flink/pull/6480#issuecomment-410124471
nice catch! memory leaks is one of the most terrible issues, this is
helpful. +1 for merge
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> Let Task release reference to Invokable on shutdown
> ---------------------------------------------------
>
> Key: FLINK-10033
> URL: https://issues.apache.org/jira/browse/FLINK-10033
> Project: Flink
> Issue Type: Bug
> Components: TaskManager
> Affects Versions: 1.5.2
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.5.3, 1.6.0
>
>
> References to Task objects may under some conditions linger longer than for
> the lifetime of the task. For example, in case of local network channels, the
> receiving task may have a reference to the object of the task that produced
> the data.
> To prevent against memory leaks, the Task needs to release all references to
> its AbstractInvokable when it shuts down or cancels.
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