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From "Chinna Rao Lalam (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5806) Handle split region related failures on master restart and RS restart
Date Tue, 08 May 2012 06:15:57 GMT

    [ 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.

-    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),

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.

-        throw new IllegalStateException("Received event is not valid.");
+        break;

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,
> 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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