[ 
https://issues.apache.org/jira/browse/HDFS-9479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Kihwal Lee resolved HDFS-9479.
------------------------------
          Resolution: Duplicate
    Target Version/s:   (was: 2.7.3)

> DeadLock Happened Between DFSOutputStream and LeaseRenewer when Network 
> unstable
> --------------------------------------------------------------------------------
>
>                 Key: HDFS-9479
>                 URL: https://issues.apache.org/jira/browse/HDFS-9479
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.7.1
>            Reporter: Bob
>            Assignee: Bob
>            Priority: Blocker
>
> {code}
> Java stack information for the threads listed above:
> ===================================================
> "Thread-1":
>       at 
> org.apache.hadoop.hdfs.client.impl.LeaseRenewer.addClient(LeaseRenewer.java:228)
>       - waiting to lock <0x00000000d5c3c868> (a 
> org.apache.hadoop.hdfs.client.impl.LeaseRenewer)
>       at 
> org.apache.hadoop.hdfs.client.impl.LeaseRenewer.getInstance(LeaseRenewer.java:85)
>       at org.apache.hadoop.hdfs.DFSClient.getLeaseRenewer(DFSClient.java:480)
>       at org.apache.hadoop.hdfs.DFSClient.endFileLease(DFSClient.java:491)
>       at 
> org.apache.hadoop.hdfs.DFSOutputStream.closeImpl(DFSOutputStream.java:803)
>       - locked <0x00000000d5c1a860> (a org.apache.hadoop.hdfs.DFSOutputStream)
>       at 
> org.apache.hadoop.hdfs.DFSOutputStream.close(DFSOutputStream.java:765)
>       - locked <0x00000000d5c1a860> (a org.apache.hadoop.hdfs.DFSOutputStream)
>       at 
> org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:72)
>       at 
> org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:106)
>       at 
> org.apache.hadoop.mapreduce.jobhistory.EventWriter.close(EventWriter.java:80)
>       at 
> org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler$MetaInfo.closeWriter(JobHistoryEventHandler.java:1242)
>       - locked <0x00000000d593aed0> (a java.lang.Object)
>       at 
> org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler.serviceStop(JobHistoryEventHandler.java:406)
>       at 
> org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
>       - locked <0x00000000d593ae88> (a java.lang.Object)
>       at 
> org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:52)
>       at 
> org.apache.hadoop.service.ServiceOperations.stopQuietly(ServiceOperations.java:80)
>       at 
> org.apache.hadoop.service.CompositeService.stop(CompositeService.java:157)
>       at 
> org.apache.hadoop.service.CompositeService.serviceStop(CompositeService.java:131)
>       at 
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster.serviceStop(MRAppMaster.java:1677)
>       at 
> org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
>       - locked <0x00000000d55d9678> (a java.lang.Object)
>       at 
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster.stop(MRAppMaster.java:1176)
>       at 
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster$MRAppMasterShutdownHook.run(MRAppMaster.java:1524)
>       at 
> org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:54)
> "LeaseRenewer:hdfs@hacluster:8020":
>       at 
> org.apache.hadoop.hdfs.DFSOutputStream.abort(DFSOutputStream.java:720)
>       - waiting to lock <0x00000000d5c1a860> (a 
> org.apache.hadoop.hdfs.DFSOutputStream)
>       at 
> org.apache.hadoop.hdfs.DFSClient.closeAllFilesBeingWritten(DFSClient.java:598)
>       at 
> org.apache.hadoop.hdfs.client.impl.LeaseRenewer.run(LeaseRenewer.java:465)
>       - locked <0x00000000d5c3c868> (a 
> org.apache.hadoop.hdfs.client.impl.LeaseRenewer)
>       at 
> org.apache.hadoop.hdfs.client.impl.LeaseRenewer.access$700(LeaseRenewer.java:75)
>       at 
> org.apache.hadoop.hdfs.client.impl.LeaseRenewer$1.run(LeaseRenewer.java:311)
>       at java.lang.Thread.run(Thread.java:745)
> {code}



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