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