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From "hongyu bi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-12957) region_mover#isSuccessfulScan may extremely slow on region with lots of expired data
Date Tue, 03 Feb 2015 06:38:34 GMT
hongyu bi created HBASE-12957:
---------------------------------

             Summary: region_mover#isSuccessfulScan may extremely slow on region with lots
of expired data
                 Key: HBASE-12957
                 URL: https://issues.apache.org/jira/browse/HBASE-12957
             Project: HBase
          Issue Type: Improvement
          Components: scripts
            Reporter: hongyu bi
            Priority: Minor


region_mover will call isSuccessfulScan when region has moved to make sure it's healthy, however
, if the moved region has lots of expired data region_mover#isSuccessfulScan will take a long
time to finish ,that may even exceed "lease timeout".So I made isSuccessfulScan a get-like
scan to achieve faster response in that case. 



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