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https://issues.apache.org/jira/browse/HBASE-22923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17373670#comment-17373670
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Hudson commented on HBASE-22923:
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Results for branch branch-2
[build #291 on
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> hbase:meta is assigned to localhost when we downgrade the hbase version
> -----------------------------------------------------------------------
>
> Key: HBASE-22923
> URL: https://issues.apache.org/jira/browse/HBASE-22923
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.4.8
> Reporter: wenbang
> Assignee: Viraj Jasani
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.5.0, 2.3.6, 1.7.1, 2.4.5
>
>
> When we downgrade the hbase version（rsgroup enable）, we found that the
> hbase:meta table could not be assigned.
> {code:java}
> master.AssignmentManager: Failed assignment of hbase:meta,,1.1588230740 to
> localhost,1,1, trying to assign elsewhere instead; try=1 of 10
> java.io.IOException: Call to localhost/127.0.0.1:1 failed on local exception:
> org.apache.hadoop.hbase.ipc.FailedServerException: This server is in the
> failed servers list: localhost/127.0.0.1:1
> {code}
> hbase group list:
> HBASE_META group（hbase:meta and other system tables）
> default group
> 1.Down grade all servers in HBASE_META first
> 2.higher version servers is in default
> 3.hbase:meta assigned to localhost
> For system table, we assign them to a server with highest version.
> AssignmentManager#getExcludedServersForSystemTable
> But did not consider the rsgroup.
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