Deadlock when RS tries to RPC to itself inside SplitTransaction
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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
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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