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https://issues.apache.org/jira/browse/FLINK-21164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17275242#comment-17275242
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Chesnay Schepler commented on FLINK-21164:
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master: 30f6964a9b72c79925c62f952a4559f2e48bdf06
1.12: 43661b5ad6344fab221540622555e8e2ae81019e
> Jar handlers don't cleanup temporarily extracted jars
> -----------------------------------------------------
>
> Key: FLINK-21164
> URL: https://issues.apache.org/jira/browse/FLINK-21164
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / REST
> Affects Versions: 1.11.0
> Reporter: Chesnay Schepler
> Assignee: Chesnay Schepler
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.11.4, 1.12.2, 1.13.0
>
>
> The jar handlers create a PackagedProgram when running a job or retrieving
> the execution plan. When a PackagedProgram is created and jars contained
> within a jar are automatically extracted to a temporary directory.
> This directory is not automatically cleaned up; this must be done manually.
> The CliFrontend does that within {{#run}}, but the jar handlers do not,
> leading to jars piling up in the filesystem.
>
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