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https://issues.apache.org/jira/browse/HDFS-3373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13442477#comment-13442477
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Daryn Sharp commented on HDFS-3373:
-----------------------------------
A related issue we need to consider, although tangental is that inability to
{{close}} doesn't give a fs a chance to cleanup. Ex. closing streams and
deleting temp files. I think there might be another jira for that?
> FileContext HDFS implementation can leak socket caches
> ------------------------------------------------------
>
> Key: HDFS-3373
> URL: https://issues.apache.org/jira/browse/HDFS-3373
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client
> Affects Versions: 2.0.0-alpha
> Reporter: Todd Lipcon
> Assignee: John George
> Attachments: HDFS-3373.branch-23.patch
>
>
> As noted by Nicholas in HDFS-3359, FileContext doesn't have a close() method,
> and thus never calls DFSClient.close(). This means that, until finalizers
> run, DFSClient will hold on to its SocketCache object and potentially have a
> lot of outstanding sockets/fds held on to.
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