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https://issues.apache.org/jira/browse/HBASE-5169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13439805#comment-13439805
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Andrew Purtell commented on HBASE-5169:
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There have been various discussions of HBASE-4120 (on the dev@ list) that
question the implementation of HBASE-4120 specifically and more generally if
any benefit is sufficient for the level of risk involved. By all means, this is
not meant to discourage work on grouping / assignment affinity, but should set
the stage for the level of design rigor we will need.
> 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: 0.96.0
>
> Attachments: GroupOfRegionServer_v1.patch,
> GroupOfRegionServer_v2.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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