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https://issues.apache.org/jira/browse/HBASE-4574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell closed HBASE-4574.
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> "Node deleted but still in RIT" printed too often
> -------------------------------------------------
>
> Key: HBASE-4574
> URL: https://issues.apache.org/jira/browse/HBASE-4574
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.92.0
> Reporter: Jean-Daniel Cryans
> Priority: Major
>
> Looking at the 0.92 master logs, I see I often get this message:
> bq. WARN org.apache.hadoop.hbase.master.AssignmentManager: Node deleted but
> still in RIT: TestTable,blah. state=OPEN, ts=1318369648361, server=blah
> The issue seems to be due to a race between OpenedRegionHandler and watchers
> in AssignmentManager. Specifically, ORH first deletes the znode then deletes
> the in-memory RIT data structure (via regionOnline). Between the two steps a
> watcher is triggered and if it arrives first then it will see the region
> still in RIT.
> If the message is really supposed to be a warning then in the current form
> it's useless as people will see this message 99% of the time because of this
> race.
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