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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11059) ZK-less region assignment
Date Mon, 09 Jun 2014 18:23:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14025491#comment-14025491
] 

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

bq. Another idea on this topic is to let RS do all the assignments including meta update and
master only need to initiate assignment request & monitor un-assignment regions without
even keeping internal memory state.

Tell us more please.  Do it in HBASE-11165?

bq. without forceSync=no

[~toffer] you mean 'with', not 'without' in above?  You want to see what happens if zk is
not sync'ing log?

> 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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