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https://issues.apache.org/jira/browse/HADOOP-9757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13729727#comment-13729727
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Daryn Sharp commented on HADOOP-9757:
-------------------------------------
+1 I'm not thrilled with the way har works, but I suppose this is the best we
can for now to fix the leak.
> Har metadata cache can grow without limit
> -----------------------------------------
>
> Key: HADOOP-9757
> URL: https://issues.apache.org/jira/browse/HADOOP-9757
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 2.0.4-alpha, 0.23.9
> Reporter: Jason Lowe
> Assignee: Cristina L. Abad
> Attachments: HADOOP_9757.branch23.patch
>
>
> MAPREDUCE-2459 added a metadata cache to the har filesystem, but the cache
> has no upper limits. A long-running process that accesses many har archives
> will eventually run out of memory due to a har metadata cache that never
> retires entries.
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