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From "Guanghao Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-17205) Add a metric for the duration of region in transition
Date Wed, 30 Nov 2016 10:48:59 GMT
Guanghao Zhang created HBASE-17205:
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             Summary: Add a metric for the duration of region in transition
                 Key: HBASE-17205
                 URL: https://issues.apache.org/jira/browse/HBASE-17205
             Project: HBase
          Issue Type: Improvement
          Components: Region Assignment
            Reporter: Guanghao Zhang
            Assignee: Guanghao Zhang
            Priority: Minor


When work for HBASE-17178, I found there are not a metric for the overall duration of region
in transition. When move a region form A to B, the transformation of region state is PENDING_CLOSE
=> CLOSING => CLOSED => PENDING_OPEN => OPENING => OPENED. When transform old
region state to new region state, it update the time stamp to current time. So we can't get
the overall transformation's duration of region in transition. Add a rit duration to RegionState
for accumulating this metric.



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