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https://issues.apache.org/jira/browse/HDFS-6208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13966952#comment-13966952
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Colin Patrick McCabe commented on HDFS-6208:
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thanks for this fix, Chris
> DataNode caching can leak file descriptors.
> -------------------------------------------
>
> Key: HDFS-6208
> URL: https://issues.apache.org/jira/browse/HDFS-6208
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.4.0
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Fix For: 3.0.0, 2.4.1
>
> Attachments: HDFS-6208.1.patch
>
>
> In the DataNode, management of mmap'd/mlock'd block files can leak file
> descriptors.
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