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Date: Tue, 8 May 2012 06:15:57 +0000 (UTC)
From: "Chinna Rao Lalam (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Commented] (HBASE-5806) Handle split region related
 failures on master restart and RS restart
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    [ https://issues.apache.org/jira/browse/HBASE-5806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13270242#comment-13270242 ] 

Chinna Rao Lalam commented on HBASE-5806:
-----------------------------------------

Thanks for the review Stack. Patch updated with the debug message.

{code}
-    JVMClusterUtil.MasterThread mt =
-      JVMClusterUtil.createMasterThread(c,
-        this.masterClass, index);
+    JVMClusterUtil.MasterThread mt = JVMClusterUtil.createMasterThread(c,
+        (Class<? extends HMaster>) c.getClass(HConstants.MASTER_IMPL, HMaster.class), index);
     this.masterThreads.add(mt);
{code}

Added the above change for setting the MockMaster class while restarting the master  without this change master class is set through the property HConstants.MASTER_IMPL is not reflecting because masterClass is already loaded.


{code}
default:
-        throw new IllegalStateException("Received event is not valid.");
+        break;
       }
{code}

While restarting the master regions in RS_ZK_REGION_SPLIT or RS_ZK_REGION_SPLITTING state should not be handled in processRIT but here it is throwing the exception because of this it failed. Here it should not throw any exception.
                
> Handle split region related failures on master restart and RS restart
> ---------------------------------------------------------------------
>
>                 Key: HBASE-5806
>                 URL: https://issues.apache.org/jira/browse/HBASE-5806
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.92.1
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: Chinna Rao Lalam
>             Fix For: 0.92.2, 0.96.0, 0.94.1
>
>         Attachments: HBASE-5806.patch, HBASE-5806_0.92.patch, HBASE-5806_0.94.patch, HBASE-5806_0.94_1.patch, HBASE-5806_0.94_2.patch, HBASE-5806_trunk.patch, HBASE-5806_trunk_1.patch, HBASE-5806_trunk_2.patch
>
>
> This issue is raised to solve issues that comes out of partial region split happened and the region node in the ZK which is in RS_ZK_REGION_SPLITTING and RS_ZK_REGION_SPLIT is not yet processed.
> This also tries to address HBASE-5615.

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