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https://issues.apache.org/jira/browse/ACCUMULO-4513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16820432#comment-16820432
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Michael Miller commented on ACCUMULO-4513:
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I am unable to reproduce this so closing the ticket. If you see it in 1.8 or
1.9, please feel free to open a GitHub issue.
> 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: 1.6.6, 1.7.2
> 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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