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https://issues.apache.org/jira/browse/HBASE-4015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-4015:
-------------------------
Priority: Blocker (was: Critical)
> Refactor the TimeoutMonitor to make it less racy
> ------------------------------------------------
>
> Key: HBASE-4015
> URL: https://issues.apache.org/jira/browse/HBASE-4015
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 0.90.3
> Reporter: Jean-Daniel Cryans
> Priority: Blocker
> Fix For: 0.92.0
>
>
> The current implementation of the TimeoutMonitor acts like a race condition
> generator, mostly making things worse rather than better. It does it's own
> thing for a while without caring for what's happening in the rest of the
> master.
> The first thing that needs to happen is that the regions should not be
> processed in one big batch, because that sometimes can take minutes to
> process (meanwhile a region that timed out opening might have opened, then
> what happens is it will be reassigned by the TimeoutMonitor generating the
> never ending PENDING_OPEN situation).
> Those operations should also be done more atomically, although I'm not sure
> how to do it in a scalable way in this case.
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