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https://issues.apache.org/jira/browse/HBASE-5972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13273192#comment-13273192
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Gopinathan A commented on HBASE-5972:
-------------------------------------

We are also getting the same issue.

{noformat}2012-05-06 21:11:28,805 INFO 
org.apache.hadoop.hbase.regionserver.Leases: regionserver60020 closing leases
2012-05-06 21:11:28,806 INFO org.apache.hadoop.hbase.regionserver.Leases: 
regionserver60020 closed leases
2012-05-06 21:11:28,812 INFO org.apache.zookeeper.ZooKeeper: Session: 
0x237235e09230006 closed
2012-05-06 21:11:28,812 INFO 
org.apache.hadoop.hbase.regionserver.HRegionServer: stopping server 
HOST-192-168-47-207,60020,1336336462275; zookeeper connection closed.
2012-05-06 21:11:28,812 INFO org.apache.zookeeper.ClientCnxn: EventThread shut 
down
2012-05-06 21:11:28,812 DEBUG 
org.apache.hadoop.hbase.regionserver.CompactSplitThread: Waiting for Split 
Thread to finish...
2012-05-06 21:11:28,812 DEBUG 
org.apache.hadoop.hbase.regionserver.CompactSplitThread: Waiting for Large 
Compaction Thread to finish...
2012-05-06 21:11:28,812 DEBUG 
org.apache.hadoop.hbase.regionserver.CompactSplitThread: Waiting for Small 
Compaction Thread to finish...
2012-05-06 21:11:28,826 INFO 
org.apache.hadoop.hbase.regionserver.HRegionServer: regionserver60020 exiting

{noformat}
                
> RegionServer Hangs on Compaction upon NameNode Death
> ----------------------------------------------------
>
>                 Key: HBASE-5972
>                 URL: https://issues.apache.org/jira/browse/HBASE-5972
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Nicolas Spiegelberg
>
> Noticed 20-minute hangs when doing a namenode kill test on our production 
> shadow cluster. All regionservers terminated except one, which got stuck with 
> the following. There might be some race conditions/deadlocks on compaction 
> thread shutdown worth investigating.

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