Yongtao Yang created HDFS-9641:
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             Summary: 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: 2.6.3, 2.6.2, 2.6.1, 2.6.0
         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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