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https://issues.apache.org/jira/browse/FLINK-20333?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dian Fu updated FLINK-20333:
----------------------------
Fix Version/s: 1.12.0
> Flink standalone cluster throws metaspace OOM after submitting multiple
> PyFlink UDF jobs.
> -----------------------------------------------------------------------------------------
>
> Key: FLINK-20333
> URL: https://issues.apache.org/jira/browse/FLINK-20333
> Project: Flink
> Issue Type: Bug
> Components: API / Python
> Reporter: Wei Zhong
> Priority: Major
> Fix For: 1.12.0
>
>
> Currently the Flink standalone cluster will throw metaspace OOM after
> submitting multiple PyFlink UDF jobs. The root cause is that there are many
> soft references and Finalizers in memory, which prevent the garbage
> collection of the finished PyFlink job classloader.
> Due to their existence, it needs multiple full gc to reclaim the classloader
> of the completed job. If only one full gc is performed before the metaspace
> space is insufficient, then OOM will occur.
>
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