[jira] [Commented] (HBASE-5169) Group of Region Server, a subtask of issue 4120

["Zhihong Yu (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-5169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13233671#comment-13233671 ] 

Zhihong Yu commented on HBASE-5169:
-----------------------------------

One aspect we need to consider is multi-tenancy support of hadoop.
Meaning, the map reduce jobs operating on the tables within a group of region servers should only be executing on the same set of servers.
                
>  Group of Region Server,  a subtask of issue 4120
> -------------------------------------------------
>
>                 Key: HBASE-5169
>                 URL: https://issues.apache.org/jira/browse/HBASE-5169
>             Project: HBase
>          Issue Type: Sub-task
>          Components: master
>            Reporter: Liu Jia
>            Assignee: Liu Jia
>             Fix For: 0.94.0
>
>         Attachments: GroupOfRegionServer_v1.patch
>
>
> This is a subtask of issue 4120,this patch provides the region server group feature of HBase.
> With this patch, region servers can be divided into groups,one table could belong to one or more groups while the region server can only belong to 
> one group. Work load in defferent groups will not affect each other. This patch provides table level and 
> group level load balance,the default load balance and region assignments will consider the group 
> configuration and assign regions to their corresponding groups.
> More information, please check out the documents of issue 4120.
> There is a web tool of this patch providing operations of group managements like add/delete group, move 
> in/out servers,change table's group attribute ,balance groups, balance tables.

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