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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-7007) [MTTR] Study assigns to see if we can make them faster still
Date Wed, 09 Jan 2013 16:46:15 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stack resolved HBASE-7007.

    Resolution: Fixed

Resolving as 'fixed' though fixed elsewhere by Jimmy and Nkeywal.  Both did the necessary
'study' and made improvements.  More to be done but enough has been done to close out this
fuzzyily-described jira.

Thanks lads.
> [MTTR] Study assigns to see if we can make them faster still
> ------------------------------------------------------------
>                 Key: HBASE-7007
>                 URL: https://issues.apache.org/jira/browse/HBASE-7007
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: stack
>            Priority: Critical
>             Fix For: 0.96.0
> Looking at a cluster start, I saw that it took about 25 minutes to assign and open 17k
regions.  8 minutes was bulk assigning via zk.  17 minutes was opening the regions.  "HBASE-6640
[0.89-fb] Allow multiple regions to be opened simultaneously" in trunk would help but maybe
we can do less work up in zk for instance; e.g. if 3.4.5, we can do bulk ops in zk (or make
a bulk assign znode that has many regions instead of one)

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