John Vines created ACCUMULO-4513:
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Summary: Master hangs if shutdown requested while in state "HAS_LOCK"
Key: ACCUMULO-4513
URL: https://issues.apache.org/jira/browse/ACCUMULO-4513
Project: Accumulo
Issue Type: Bug
Affects Versions: 1.7.2, 1.6.6
Reporter: John Vines
Priority: Critical
The StatusThread.run() method does not have any means to change the masters state out of HAS_LOCK
when CLEAN_STOP is requested, which can cause the master to get perpetually stuck
Additionally, because the master never hit the NORMAL state, the main Master.run() was jammed
at waitForMetadataUpgrade.await() so the thrift server was never started and shutdown couldn't
be issued directly (not entirely confident that would have actually fixed anything though
this is contrary to the the state transition chart which says we can go from HAVE_LOCK->STOP)
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