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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7007) [MTTR] Study assigns to see if we can make them faster still
Date Wed, 09 Jan 2013 16:24:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13548641#comment-13548641
] 

Jimmy Xiang commented on HBASE-7007:
------------------------------------

I did some testing last November. We did much better than this (10+k region assigned in around
4 minutes in a 4 nodes cluster).
I think we can close this since HBASE-7247 could improve the performance more.
                
> [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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