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https://issues.apache.org/jira/browse/HBASE-6046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13289527#comment-13289527
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ramkrishna.s.vasudevan commented on HBASE-6046:
-----------------------------------------------
Committed to 0.94 and trunk. Working on a patch for 0.92 as it is not uploaded
here.
Thanks Ashutosh for the patch.
Thanks to Ted and Stack for the review.
> 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-trunk.patch, HBASE_6046_0.94.patch,
> HBASE_6046_0.94_1.patch, HBASE_6046_0.94_2.patch, HBASE_6046_0.94_3.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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