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Posted to dev@hbase.apache.org by "Nicolas Liochon (JIRA)" <ji...@apache.org> on 2013/11/17 14:03:21 UTC

[jira] [Created] (HBASE-9987) Remove some synchronisation points in HConnectionManager

Nicolas Liochon created HBASE-9987:
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             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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