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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9204) An Offline SplitParent Region can be assigned breaking split references
Date Tue, 13 Aug 2013 13:05:47 GMT
Matteo Bertozzi created HBASE-9204:
--------------------------------------

             Summary: An Offline SplitParent Region can be assigned breaking split references
                 Key: HBASE-9204
                 URL: https://issues.apache.org/jira/browse/HBASE-9204
             Project: HBase
          Issue Type: Bug
          Components: Region Assignment
    Affects Versions: 0.94.10, 0.95.1, 0.98.0
            Reporter: Matteo Bertozzi
            Priority: Blocker


An offline split parent region can be assigned by using 'assign' from shell.

This may trigger a compaction on the split parent region that should be offline, breaking
the references of the two daughters.

The easy way to test this is:
 * disable compactions
 * create a table and insert some row
 * split
 * shutdown the master (otherwise there's a state checked inside the AssignmentManager)
 * start the master
 * assign the region marked as OFFLINE => true, SPLIT => true (the compaction on region
startup will probably break the reference of the two  daughters)


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