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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