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From "gaojinchao (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4739) Master dying while going to close a region can leave it in transition forever
Date Tue, 15 Nov 2011 02:04:52 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13150168#comment-13150168
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gaojinchao commented on HBASE-4739:
-----------------------------------

V2 fixs Ted's comment.

In my local, replication test case passed. I will try to dig this issue "https://builds.apache.org/job/PreCommit-HBASE-Build/243//testReport/org.apache.hadoop.hbase.replication/TestReplication/queueFailover/"

Running org.apache.hadoop.hbase.replication.TestReplicationSource
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.897 sec
Running org.apache.hadoop.hbase.replication.TestReplicationPeer
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 25.538 sec
Running org.apache.hadoop.hbase.replication.regionserver.TestReplicationSourceManager
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.089 sec
Running org.apache.hadoop.hbase.replication.regionserver.TestReplicationSink
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 22.178 sec
Running org.apache.hadoop.hbase.replication.TestReplication
Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 145.709 sec
Running org.apache.hadoop.hbase.replication.TestMultiSlaveReplication
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 55.521 sec
Running org.apache.hadoop.hbase.replication.TestMasterReplication
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 99.819 sec
Running org.apache.hadoop.hbase.TestServerName

                
> 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: HBASE-4739_Trunk.patch, HBASE-4739_Trunk_V2.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.

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