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From "Jeffrey Zhong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-12485) Maintain SeqId monotonically increasing when Region Replica is on
Date Sat, 15 Nov 2014 02:09:34 GMT
Jeffrey Zhong created HBASE-12485:
-------------------------------------

             Summary: Maintain SeqId monotonically increasing when Region Replica is on
                 Key: HBASE-12485
                 URL: https://issues.apache.org/jira/browse/HBASE-12485
             Project: HBase
          Issue Type: Sub-task
            Reporter: Jeffrey Zhong
            Assignee: Jeffrey Zhong


We added FLUSH, REGION CLOSE events into WAL, for each those events the region SeqId is bumped.


The issue comes from region close operation. Because when opening a region, we use flushed
SeqId from store files while after store flush during region close we still write COMMIT_FLUSH,
REGION_CLOSE events etc which respectively bump up SeqId. Therefore, the region opening SeqId
is lower than it should be.  




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