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https://issues.apache.org/jira/browse/FLINK-16408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17178758#comment-17178758
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Echo Lee edited comment on FLINK-16408 at 8/17/20, 6:44 AM:
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Hi [~trohrmann] If I cancel and submit the same application and keep repeating
it, will this classloader be reused?
I use flink 1.11.0 standalone mode. It seems that the metaspace of taskmanager
is increasing every time I restart the job. What do you think [~trohrmann] ?
!Metaspace-OOM.png!
was (Author: echo lee):
Hi [~trohrmann] If I cancel and submit the same application and keep repeating
it, will this classloader be reused?
I use Flink 1.11.0. It seems that the metaspace of taskmanager is increasing
every time I restart the job. What do you think [~trohrmann] ?
!Metaspace-OOM.png!
> Bind user code class loader to lifetime of a slot
> -------------------------------------------------
>
> Key: FLINK-16408
> URL: https://issues.apache.org/jira/browse/FLINK-16408
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.9.2, 1.10.0
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.11.0
>
> Attachments: Metaspace-OOM.png
>
>
> In order to avoid class leaks due to creating multiple user code class
> loaders and loading class multiple times in a recovery case, I would suggest
> to bind the lifetime of a user code class loader to the lifetime of a slot.
> More precisely, the user code class loader should live at most as long as the
> slot which is using it.
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