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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14241) Deadlock during HBaseTestingUtility#shutdownMiniHBaseCluster
Date Tue, 18 Aug 2015 21:24:48 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14702014#comment-14702014
] 

Andrew Purtell commented on HBASE-14241:
----------------------------------------

I applied it (with fuzz) to branch-1.0 (1.0.2RC1, specifically), where the problem was found.
Can you look at branch-1.0?

> Deadlock during HBaseTestingUtility#shutdownMiniHBaseCluster
> ------------------------------------------------------------
>
>                 Key: HBASE-14241
>                 URL: https://issues.apache.org/jira/browse/HBASE-14241
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.0.2
>            Reporter: Andrew Purtell
>            Assignee: Ted Yu
>         Attachments: 14241-v1.txt, deadlock.txt.gz
>
>
> Caught while testing branch-1.0, shutting down TestMasterMetricsWrapper.
> Found one Java-level deadlock:
> =============================
> "MASTER_META_SERVER_OPERATIONS-ip-10-32-130-237:55342-0":
>   waiting to lock monitor 0x00007f2a040051c8 (object 0x00000007e36108a8, a org.apache.hadoop.hbase.util.PoolMap),
>   which is held by "M:0;ip-10-32-130-237:55342"
> "M:0;ip-10-32-130-237:55342":
>   waiting to lock monitor 0x00007f2a04005118 (object 0x00000007e3610b00, a org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection),
>   which is held by "MASTER_META_SERVER_OPERATIONS-ip-10-32-130-237:55342-0"
> Full stack dump and deadlock debug output attached.



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