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https://issues.apache.org/jira/browse/HBASE-20500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16457710#comment-16457710
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Ted Yu commented on HBASE-20500:
--------------------------------
Please address the following in your next patch (on top of my suggestion above):
{code}
Caused by: org.apache.hadoop.hbase.ipc.RemoteWithExtrasException:
org.apache.hadoop.hbase.constraint.ConstraintException: RSGroup foo has 1
servers; you must remove these servers from the RSGroup beforethe RSGroup can
be removed.
at
org.apache.hadoop.hbase.rsgroup.RSGroupAdminServer.removeRSGroup(RSGroupAdminServer.java:469)
at
org.apache.hadoop.hbase.rsgroup.RSGroupAdminEndpoint$RSGroupAdminServiceImpl.removeRSGroup(RSGroupAdminEndpoint.java:252)
{code}
> [rsgroup] should keep at least one server in default group
> ----------------------------------------------------------
>
> Key: HBASE-20500
> URL: https://issues.apache.org/jira/browse/HBASE-20500
> Project: HBase
> Issue Type: Bug
> Components: rsgroup
> Affects Versions: 2.0.0-beta-2
> Reporter: Yechao Chen
> Assignee: Yechao Chen
> Priority: Major
> Attachments: HBASE-20500-branch-2.v1.patch,
> HBASE-20500-master.v1.patch, HBASE-20500-master.v2.patch,
> HBASE-20500-master.v3.patch, HBASE-20500-master.v4.patch
>
>
> we move all the servers from default group
> the default group will has no servers,
> then we create a new table ,
> it will failed case of the default group has no servers
> eorr info is :
> EROOR: ConstraintException:Target RSGroup must have at lease on server
>
> we should keep at least one server in 'default' RSGroup
>
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