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https://issues.apache.org/jira/browse/TEZ-1585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14134631#comment-14134631
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Rajesh Balamohan commented on TEZ-1585:
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Thanks [~sseth], addressing it in the attached patch. Tested it with 6100+
jobs on a smaller cluster.
> Memory leak in tez session mode
> -------------------------------
>
> Key: TEZ-1585
> URL: https://issues.apache.org/jira/browse/TEZ-1585
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Attachments: TEZ-1585.1.patch, app_master.tar.gz
>
>
> DAGAppMaster's memory gradually keeps increasing when running simple tez apps
> repeatedly in session mode. Taking memory snapshots revealed that
> FileSystem.CACHE is getting populated with some keys which are not being
> released.
> Around 200KB of data is leaked for every job invocation in the session mode.
> I will attach the profiler snapshots soon. Haven't figured out yet on who
> makes the call to FileSystem.get() and not calling close().
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