Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Date: Tue, 22 Nov 2011 00:09:40 +0000 (UTC)
From: "Jean-Daniel Cryans (Commented) (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: 
 <2032172352.321.1321920580308.JavaMail.tomcat@hel.zones.apache.org>
In-Reply-To: 
 <1554445905.56557.1320342093142.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Commented] (HBASE-4739) Master dying while going to close a
 region can leave it in transition forever
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HBASE-4739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13154749#comment-13154749 ] 

Jean-Daniel Cryans commented on HBASE-4739:
-------------------------------------------

I prefer the latest patch, although it seems the EventHandler.java bit was only needed with the new znode.

Handling RegionAlreadyInTransitionException would be cleaner.
                
> Master dying while going to close a region can leave it in transition forever
> -----------------------------------------------------------------------------
>
>                 Key: HBASE-4739
>                 URL: https://issues.apache.org/jira/browse/HBASE-4739
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.90.4
>            Reporter: Jean-Daniel Cryans
>            Assignee: gaojinchao
>            Priority: Minor
>             Fix For: 0.92.0, 0.94.0, 0.90.5
>
>         Attachments: 4739_trial2.patch, 4739_trialV3.patch, HBASE-4739_Trunk.patch, HBASE-4739_Trunk_V2.patch, HBASE-4739_trail5.patch, HBASE-4739_trial.patch
>
>
> I saw this in the aftermath of HBASE-4729 on a 0.92 refreshed yesterday, when the master died it had just created the RIT znode for a region but didn't tell the RS to close it yet.
> When the master restarted it saw the znode and started printing this:
> {quote}
> 2011-11-03 00:02:49,130 INFO org.apache.hadoop.hbase.master.AssignmentManager: Regions in transition timed out:  TestTable,0007560564,1320253568406.f76899564cabe7e9857c3aeb526ec9dc. state=CLOSING, ts=1320253605285, server=sv4r11s38,62003,1320195046948
> 2011-11-03 00:02:49,130 INFO org.apache.hadoop.hbase.master.AssignmentManager: Region has been CLOSING for too long, this should eventually complete or the server will expire, doing nothing
> {quote}
> It's never going to happen, and it's blocking balancing.
> I'm marking this as minor since I believe this situation is pretty rare unless you hit other bugs while trying out stuff to root bugs out.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira