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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9987) Remove some synchronisation points in HConnectionManager
Date Sun, 17 Nov 2013 13:03:21 GMT
Nicolas Liochon created HBASE-9987:
--------------------------------------

             Summary: Remove some synchronisation points in HConnectionManager
                 Key: HBASE-9987
                 URL: https://issues.apache.org/jira/browse/HBASE-9987
             Project: HBase
          Issue Type: Bug
          Components: Client
    Affects Versions: 0.96.0, 0.98.0
            Reporter: Nicolas Liochon
            Assignee: Nicolas Liochon
             Fix For: 0.98.0, 0.96.1
         Attachments: 9987.v1.patch

Change a Map to a concurrentMap
Removed the "cachedServer (introduced in HBASE-4785). I suspect that this function is not
needed anymore as we also have a list of dead servers, and accessing the list is not blocking.
I will dig into this more however.

The patch gives a 10% improvement with the NoClusterClient.



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