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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11059) ZK-less region assignment
Date Sun, 08 Jun 2014 05:08:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14021103#comment-14021103
] 

stack commented on HBASE-11059:
-------------------------------

ok.  I went over RB and left some comments.  Minor for the most part.  Did not review actual
transitions too closely figuring that unit tests and IT will find issues before I would.

I'm +1 for committing this.  Would be cool to get a +1 from a [~jeffreyz] too... or at least
a skim by Jeffrey (Jeffrey, this is sweet work!).

+1 would be to commit with this feature off.  We'd then file an issue against 1.0 to turn
it on by default.  In that issue we'd make the case for why this should be on. 

Suggest you pull out the comments for rolling restart and shove them in as the release note
for this JIRA.  Good on you Jimmy.



> 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
>             Fix For: 0.99.0
>
>         Attachments: hbase-11059.patch, hbase-11059_v2.1.patch, hbase-11059_v2.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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