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https://issues.apache.org/jira/browse/HDFS-2810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13189486#comment-13189486
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Eli Collins commented on HDFS-2810:
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+1 lgtm, nice find.
> Leases not properly getting renewed by clients
> ----------------------------------------------
>
> Key: HDFS-2810
> URL: https://issues.apache.org/jira/browse/HDFS-2810
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client
> Affects Versions: 0.23.0, 0.24.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Critical
> Attachments: hdfs-2810.txt, hdfs-2810.txt
>
>
> We've been testing HBase on clusters running trunk and seen an issue where
> they seem to lose their HDFS leases after a couple of hours of runtime. We
> don't quite have enough data to understand what's happening, but the NN is
> expiring them, claiming the hard lease period has elapsed. The clients report
> no error until their output stream gets killed underneath them.
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