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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-2765) Master should display currently unassigned regions in UI
Date Tue, 22 Jun 2010 07:04:55 GMT
Master should display currently unassigned regions in UI

                 Key: HBASE-2765
                 URL: https://issues.apache.org/jira/browse/HBASE-2765
             Project: HBase
          Issue Type: New Feature
          Components: master
    Affects Versions: 0.21.0
            Reporter: Todd Lipcon

The master often knows that a region is unassigned, but thinks it's getting assigned. It would
be very useful to display the current set of unassigned regions in the UI, as well as their
current state (eg where it's supposed to be getting assigned, how long ago it last heard from
it, etc). This would be useful in debugging/diagnosing cluster issues (eg I just noticed that
a client had hung, took me a while to figure out that I had a region that was repeatedly failing
to open with an NPE due to HBASE-2729)

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