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From "Nicolas Spiegelberg (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-4785) Improve recovery time of HBase client when a region server dies.
Date Tue, 15 Nov 2011 00:59:53 GMT
Improve recovery time of HBase client when a region server dies.
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                 Key: HBASE-4785
                 URL: https://issues.apache.org/jira/browse/HBASE-4785
             Project: HBase
          Issue Type: Improvement
            Reporter: Nicolas Spiegelberg
            Assignee: Nicolas Spiegelberg
            Priority: Minor
             Fix For: 0.94.0


When a region server dies, the HBase client waits until the RPC timesout before learning that
it needs to check META to find the new location of the region. And it incurs this *timeout*
cost for every region being served by the dead region server. Remove this overhead by clearing
the entries in cache that have the dead region server as their values.

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