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From "Jonathan Gray (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4524) support for more than one region in .META. table
Date Mon, 03 Oct 2011 23:30:35 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13119745#comment-13119745

Jonathan Gray commented on HBASE-4524:

+1 removing root and putting META location into zk.

-1 on thinking about splittable META right now.

+1 thinking about mirroring META in ZK, adding new locations/redirects in NSREs, and other
optimizations and availability improvements
> support for more than one region in .META. table
> ------------------------------------------------
>                 Key: HBASE-4524
>                 URL: https://issues.apache.org/jira/browse/HBASE-4524
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ming Ma
>            Assignee: Ming Ma
> It seems there are some assumptions in the code that .META. table only has one region
FIRST_META_REGIONINFO in the following areas:
> 1) .META. table update with user region info.
> 2) .META. regions assignment.
> 3) .META. table split handling.
> Perhaps we don't have such requirement until we scale to really large number of regions
like 1M.

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