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https://issues.apache.org/jira/browse/FLINK-33623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17788979#comment-17788979
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gabrywu edited comment on FLINK-33623 at 11/23/23 4:52 AM:
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Flink Netty Client and Fink Netty Server uses different classloader, Netty
Server uses sun.misc.Launcher$AppClassLoader, however Flink Netty Client use
org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders
When job stopped, Flink Netty Client thread doesn't stop, so there is always a
classloader leak
was (Author: gabry.wu):
Flink Netty Client and Fink Netty Server uses different classloader, Netty
Server uses sun.misc.Launcher$AppClassLoader, however Flink Netty Client use
org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders
> Metaspce leak caused by Flink Netty Client thread
> -------------------------------------------------
>
> Key: FLINK-33623
> URL: https://issues.apache.org/jira/browse/FLINK-33623
> Project: Flink
> Issue Type: Bug
> Affects Versions: 1.13.5
> Reporter: gabrywu
> Priority: Minor
> Attachments: image-2023-11-23-09-47-50-536.png
>
>
> Hi, folks,
> We found that there is a Flink Netty Client thread with contextClassLoader
> `ChildFirstClassLoader`, and it causes a metaspace leak.
> !image-2023-11-23-09-47-50-536.png|width=1175,height=651!
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