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From "Mikhail Antonov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11059) ZK-less region assignment
Date Fri, 25 Apr 2014 00:21:19 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13980534#comment-13980534

Mikhail Antonov commented on HBASE-11059:

Curious if there's any writeup following up on the discussion you mentioned above? Eager to
look at.

Based on the description, just some thoughts:

 - is that a part of more generic proposal to have system tables, which can be pinned (all
regions thereof) to a certain node, or it's just to solve this specific problem?
 - sounds like (correct me if I'm wrong) to make the HA/failover work properly, the consistent
replicas of such a table(-s) should be kept on each backup master (and further when we have
multiple active master, on active masters)?

> 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
> 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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