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Posted to issues@hbase.apache.org by "Jimmy Xiang (JIRA)" <ji...@apache.org> on 2014/05/27 19:56:04 UTC

[jira] [Comment Edited] (HBASE-11059) ZK-less region assignment

    [ https://issues.apache.org/jira/browse/HBASE-11059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14009982#comment-14009982 ] 

Jimmy Xiang edited comment on HBASE-11059 at 5/27/14 5:55 PM:
--------------------------------------------------------------

The patch is backward compatible, rolling upgradable. The performance depends on the setup and the number of regions of course. On my 6 nodes cluster, assigning 13,990 user regions, it took about 8minutes using ZK, and ~1minute with this patch (no ZK).


was (Author: jxiang):
The patch is backward compatible, rolling upgradable. The performance depends on the setup and the number of regions of course. On my 6 nodes cluster, assigning 13,990 user regions, it took about 8minutes using ZK, and ~1minute with this patch.

> ZK-less region assignment
> -------------------------
>
>                 Key: HBASE-11059
>                 URL: https://issues.apache.org/jira/browse/HBASE-11059
>             Project: HBase
>          Issue Type: Improvement
>          Components: master, Region Assignment
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>         Attachments: hbase-11059.patch, zk-less_am.pdf
>
>
> It seems that most people don't like region assignment with ZK (HBASE-5487), which causes many uncertainties. This jira is to support ZK-less region assignment. We need to make sure this patch doesn't break backward compatibility/rolling upgrade.



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