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https://issues.apache.org/jira/browse/HBASE-22514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16880129#comment-16880129
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Guanghao Zhang commented on HBASE-22514:
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{quote}bq.And I think there will be a big challenge is that, how do we deal 
with master startup, as region assign depends on the LoadBalancer, but now 
LoadBalancer will depend on hbase:rsgroup table.
{quote}
If I am not wrong, rsgroup info will storage on hbase:rsgroup table and 
zookeeper both. If hbase:rsgroup is not online, the RSGroupBalancer should load 
the rsgroup information from zookeeper. 

> Move rsgroup feature into core of HBase
> ---------------------------------------
>
>                 Key: HBASE-22514
>                 URL: https://issues.apache.org/jira/browse/HBASE-22514
>             Project: HBase
>          Issue Type: Umbrella
>          Components: Admin, Client, rsgroup
>            Reporter: Yechao Chen
>            Assignee: Yechao Chen
>            Priority: Major
>         Attachments: HBASE-22514.master.001.patch, 
> image-2019-05-31-18-25-38-217.png
>
>
> The class RSGroupAdminClient is not public 
> we need to use java api  RSGroupAdminClient  to manager RSG 
> so  RSGroupAdminClient should be public
>  



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