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From "Yajun Dong (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-650) Namenode in infinite loop for removing/recovering lease.
Date Sat, 26 Sep 2009 03:45:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12759853#action_12759853
] 

Yajun Dong commented on HDFS-650:
---------------------------------

The issue is that the file has been closed and the lease dit not removed. The logic from the
code point of view in NameNode, it seems to be unlikely. 

At this point, I could provide some information is that the user request the APPEND operation
before the file is not closed.


> Namenode in infinite loop for removing/recovering lease.
> --------------------------------------------------------
>
>                 Key: HDFS-650
>                 URL: https://issues.apache.org/jira/browse/HDFS-650
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Yajun Dong
>            Priority: Blocker
>
> 2009-09-23 18:05:48,929 INFO org.apache.hadoop.hdfs.server.namenode.LeaseManager: Lease
Monitor: Removing lease [Lease.  Holder: DFSClient_2121971893, pendingcreates: 1], sortedLeases.size()=:
1
> 2009-09-23 18:05:48,929 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Recovering
lease=[Lease.  Holder: DFSClient_2121971893, pendingcreates: 1], src=/54_upload/GALGAME/<风子の漂流瓶@Sumisora+2Dgal>CANVAS3V1.ISO
> 2009-09-23 18:05:48,929 WARN org.apache.hadoop.hdfs.StateChange: DIR* NameSystem.internalReleaseCreate:
attempt to release a create lock on /54_upload/GALGAME/<风子の漂流瓶@Sumisora+2Dgal>CANVAS3V1.ISO
but file is already closed.
> 2009-09-23 18:05:48,929 INFO org.apache.hadoop.hdfs.server.namenode.LeaseManager: Lease
Monitor: Removing lease [Lease.  Holder: DFSClient_2121971893, pendingcreates: 1], sortedLeases.size()=:
1
> 2009-09-23 18:05:48,929 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Recovering
lease=[Lease.  Holder: DFSClient_2121971893, pendingcreates: 1], src=/54_upload/GALGAME/<风子の漂流瓶@Sumisora+2Dgal>CANVAS3V1.ISO
> 2009-09-23 18:05:48,929 WARN org.apache.hadoop.hdfs.StateChange: DIR* NameSystem.internalReleaseCreate:
attempt to release a create lock on /54_upload/GALGAME/<风子の漂流瓶@Sumisora+2Dgal>CANVAS3V1.ISO
but file is already closed.
> 2009-09-23 18:05:48,929 INFO org.apache.hadoop.hdfs.server.namenode.LeaseManager: Lease
Monitor: Removing lease [Lease.  Holder: DFSClient_2121971893, pendingcreates: 1], sortedLeases.size()=:
1
> 2009-09-23 18:05:48,929 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Recovering
lease=[Lease.  Holder: DFSClient_2121971893, pendingcreates: 1], src=/54_upload/GALGAME/<风子の漂流瓶@Sumisora+2Dgal>CANVAS3V1.ISO
> 2009-09-23 18:05:48,929 WARN org.apache.hadoop.hdfs.StateChange: DIR* NameSystem.internalReleaseCreate:
attempt to release a create lock on /54_upload/GALGAME/<风子の漂流瓶@Sumisora+2Dgal>CANVAS3V1.ISO
but file is already closed.
> 2009-09-23 18:05:48,929 INFO org.apache.hadoop.hdfs.server.namenode.LeaseManager: Lease
Monitor: Removing lease [Lease.  Holder: DFSClient_2121971893, pendingcreates: 1], sortedLeases.size()=:
1
> 2009-09-23 18:05:48,929 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Recovering
lease=[Lease.  Holder: DFSClient_2121971893, pendingcreates: 1], src=/54_upload/GALGAME/<风子の漂流瓶@Sumisora+2Dgal>CANVAS3V1.ISO
> 2009-09-23 18:05:48,929 WARN org.apache.hadoop.hdfs.StateChange: DIR* NameSystem.internalReleaseCreate:
attempt to release a create lock on /54_upload/GALGAME/<风子の漂流瓶@Sumisora+2Dgal>CANVAS3V1.ISO
but file is already closed.
> 2009-09-23 18:05:48,929 INFO org.apache.hadoop.hdfs.server.namenode.LeaseManager: Lease
Monitor: Removing lease [Lease.  Holder: DFSClient_2121971893, pendingcreates: 1], sortedLeases.size()=:
1

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