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From "Rajeshbabu Chintaguntla (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-12975) SplitTranaction, RegionMergeTransaction to should have InterfaceAudience of LimitedPrivate(Coproc,Phoenix)
Date Thu, 05 Feb 2015 05:29:34 GMT
Rajeshbabu Chintaguntla created HBASE-12975:
-----------------------------------------------

             Summary: SplitTranaction, RegionMergeTransaction to should have InterfaceAudience
of LimitedPrivate(Coproc,Phoenix)
                 Key: HBASE-12975
                 URL: https://issues.apache.org/jira/browse/HBASE-12975
             Project: HBase
          Issue Type: Improvement
            Reporter: Rajeshbabu Chintaguntla
            Assignee: Rajeshbabu Chintaguntla


Making SplitTransaction, RegionMergeTransaction limited private is required to support local
indexing feature in Phoenix to ensure regions colocation. 

We can ensure region split, regions merge in the coprocessors in few method calls without
touching internals like creating zk's, file layout changes or assignments.
1) stepsBeforePONR, stepsAfterPONR we can ensure split.
2) meta entries can pass through coprocessors to atomically update with the normal split/merge.
3) rollback on failure.



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