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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-9987) Remove some synchronisation points in HConnectionManager
Date Mon, 18 Nov 2013 15:11:21 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nicolas Liochon updated HBASE-9987:
-----------------------------------

      Resolution: Fixed
    Hadoop Flags: Reviewed
          Status: Resolved  (was: Patch Available)

Committed. Thanks for the review, lads.

> 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: 0.98.0, 0.96.0
>            Reporter: Nicolas Liochon
>            Assignee: Nicolas Liochon
>             Fix For: 0.98.0, 0.96.1
>
>         Attachments: 9987.v1.patch, 9987.v2.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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