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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-2459) Use finer-grain locking in HConnectionManager
Date Mon, 17 May 2010 16:49:43 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2459?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Gray updated HBASE-2459:
---------------------------------

    Labels: moved_from_0_20_5 noob  (was: moved_from_0_20_5)

> Use finer-grain locking in HConnectionManager
> ---------------------------------------------
>
>                 Key: HBASE-2459
>                 URL: https://issues.apache.org/jira/browse/HBASE-2459
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: client
>            Reporter: Jonathan Gray
>            Priority: Critical
>             Fix For: 0.21.0
>
>
> Currently we synchronize within HConnectionManager.locateRegionInMeta() when looking
up the cached location (and querying meta if not cached).  We use the same lock for every
user-space region.
> We really only need per-region synchronization here.

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