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Date: Fri, 1 Jun 2012 16:45:23 +0000 (UTC)
From: "Zhihong Yu (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Commented] (HBASE-6046) Master retry on ZK session expiry
 causes inconsistent region assignments.
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    [ https://issues.apache.org/jira/browse/HBASE-6046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13287526#comment-13287526 ] 

Zhihong Yu commented on HBASE-6046:
-----------------------------------

I ran the new test and it passed.
{code}
   }
+  public void finishInitialization() {
+    finishInitialization(false);
{code}
Please add javadoc for the above method. Leave one empty line between the previous method and finishInitialization().

In test code:
{code}
+  public static class MockLoadBalancer extends DefaultLoadBalancer {
{code}
The above class can be private.

                
> Master retry on ZK session expiry causes inconsistent region assignments.
> -------------------------------------------------------------------------
>
>                 Key: HBASE-6046
>                 URL: https://issues.apache.org/jira/browse/HBASE-6046
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.92.1, 0.94.0
>            Reporter: Gopinathan A
>            Assignee: ramkrishna.s.vasudevan
>         Attachments: HBASE_6046_0.94.patch, HBASE_6046_0.94_1.patch
>
>
> 1> ZK Session timeout in the hmaster leads to bulk assignment though all the RSs are online.
> 2> While doing bulk assignment, if the master again goes down & restart(or backup comes up) all the node created in the ZK will now be tried to reassign to the new RSs. This is leading to double assignment.
> we had 2800 regions, among this 1900 region got double assignment, taking the region count to 4700. 

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