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https://issues.apache.org/jira/browse/HBASE-2964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12906819#action_12906819
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Todd Lipcon commented on HBASE-2964:
------------------------------------
Overnight test completed OK with that patch. I think we should rebuild the rc
with this if Stack thinks it looks good.
> Deadlock when RS tries to RPC to itself inside SplitTransaction
> ---------------------------------------------------------------
>
> Key: HBASE-2964
> URL: https://issues.apache.org/jira/browse/HBASE-2964
> Project: HBase
> Issue Type: Bug
> Components: ipc, regionserver
> Affects Versions: 0.90.0
> Reporter: Todd Lipcon
> Priority: Blocker
> Attachments: hbase-2964.txt
>
>
> In testing the 0.89.20100830 rc, I ran into a deadlock with the following
> situation:
> - All of the IPC Handler threads are blocked on the region lock, which is
> held by CompactSplitThread.
> - CompactSplitThread is in the process of trying to edit META to create the
> offline parent. META happens to be on the same server as is executing the
> split.
> Therefore, the CompactSplitThread is trying to connect back to itself, but
> all of the handler threads are blocked, so the IPC never happens. Thus, the
> entire RS gets deadlocked.
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