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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2011/03/21 22:14:06 UTC

[jira] [Assigned] (HBASE-2459) Use finer-grain locking in HConnectionManager

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

stack reassigned HBASE-2459:
----------------------------

    Assignee: Nicolas Spiegelberg

I think you've fixed this w/ your recent HCM change.  Is that so?

> Use finer-grain locking in HConnectionManager
> ---------------------------------------------
>
>                 Key: HBASE-2459
>                 URL: https://issues.apache.org/jira/browse/HBASE-2459
>             Project: HBase
>          Issue Type: Improvement
>          Components: client
>            Reporter: Jonathan Gray
>            Assignee: Nicolas Spiegelberg
>            Priority: Critical
>              Labels: moved_from_0_20_5, noob
>             Fix For: 0.92.0
>
>
> 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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