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From "Kuan-Po Tseng (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PHOENIX-2249) SYSTEM.STATS not update after region merge occurs.
Date Fri, 11 Sep 2015 04:34:45 GMT
Kuan-Po Tseng created PHOENIX-2249:
--------------------------------------

             Summary: SYSTEM.STATS not update after region merge occurs.
                 Key: PHOENIX-2249
                 URL: https://issues.apache.org/jira/browse/PHOENIX-2249
             Project: Phoenix
          Issue Type: Bug
         Environment: Ubuntu server 14.04
Hadoop 2.6.0
HBase 1.0.0
Phoenix 4.4.0-HBase-1.0.0
            Reporter: Kuan-Po Tseng


When region merge occurs, SYSTEM.STATS does not update, it will leave stale information behind.
And then if region splits on the merged region, this may cause 

"org.apache.phoenix.schema.StaleRegionBoundaryCacheException: ERROR 1108 (XCL08): Cache of
region boundaries are out of date" 

after creating parallel scans since the stale information in SYSTEM.STATS will let guide post
list not sorted in ascending order and this will cause scans over regions.



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