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Date: Fri, 5 Apr 2013 19:13:16 +0000 (UTC)
From: "rajeshbabu (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12631850.1360627363213.118412.1365189196750@arcas>
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Subject: [jira] [Commented] (HBASE-7824) Improve master start up time when
 there is log splitting work
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    [ https://issues.apache.org/jira/browse/HBASE-7824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13623960#comment-13623960 ] 

rajeshbabu commented on HBASE-7824:
-----------------------------------

[~jeffreyz]
Going through the patch. 
{code}
+    // SSH should enabled before META region assignment
+    // because META region assignment is depending on ROOT server online.
{code}
FYI,There is possible META data loss with this
see chunhui comment
https://issues.apache.org/jira/browse/HBASE-8251?focusedCommentId=13621689&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13621689
                
> Improve master start up time when there is log splitting work
> -------------------------------------------------------------
>
>                 Key: HBASE-7824
>                 URL: https://issues.apache.org/jira/browse/HBASE-7824
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>            Reporter: Jeffrey Zhong
>            Assignee: Jeffrey Zhong
>             Fix For: 0.94.8
>
>         Attachments: HBASE-7824_3.patch, hbase-7824.patch, hbase-7824_v2.patch, hbase-7824_v3.patch, hbase-7824-v4.patch, hbase-7824-v5.patch
>
>
> When there is log split work going on, master start up waits till all log split work completes even though the log split has nothing to do with meta region servers.
> It's a bad behavior considering a master node can run when log split is happening while its start up is blocking by log split work. 
> Since master is kind of single point of failure, we should start it ASAP.

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