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https://issues.apache.org/jira/browse/HDFS-9641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15118023#comment-15118023
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Colin Patrick McCabe commented on HDFS-9641:
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This seems like a duplicate of HDFS-4504.
> IOException in hdfs write process causes file leases not released
> -----------------------------------------------------------------
>
> Key: HDFS-9641
> URL: https://issues.apache.org/jira/browse/HDFS-9641
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 2.6.0, 2.6.1, 2.6.2, 2.6.3
> Environment: hadoop 2.6.0,
> Reporter: Yongtao Yang
>
> when writing a file, an IOException may be raised in
> DFSOutputStream.DataStreamer.run(), then 'streamerClosed' may be set to true,
> then closeInternal() will be invoked, where DFSOutputStream.closed will be
> set to be true. That is to say, 'closed' is true before
> DFSOutputStream.close() is invoked, then dfsClient.endFileLease(fileId) will
> not be executed. The references of the DFSOutputStream objects will still be
> hold in DFSClient.filesBeingWritten untill the client quits. The related
> resources will not be released. HDFS-4504 is a related issue.
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