[jira] [Commented] (HBASE-6721) RegionServer Group based Assignment

["Daisuke Kobayashi (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-6721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16599631#comment-16599631 ] 

Daisuke Kobayashi commented on HBASE-6721:
------------------------------------------

While studying the code, I happen to find HBASE-19799 where it added UI for RSGroups. Hence I may close this request then.
Thank you for having a look, sir!

> RegionServer Group based Assignment
> -----------------------------------
>
>                 Key: HBASE-6721
>                 URL: https://issues.apache.org/jira/browse/HBASE-6721
>             Project: HBase
>          Issue Type: New Feature
>          Components: regionserver
>            Reporter: Francis Liu
>            Assignee: Francis Liu
>            Priority: Major
>              Labels: hbase-6721
>             Fix For: 2.0.0
>
>         Attachments: 6721-master-webUI.patch, HBASE-6721 GroupBasedLoadBalancer Sequence Diagram.xml, HBASE-6721-DesigDoc.pdf, HBASE-6721-DesigDoc.pdf, HBASE-6721-DesigDoc.pdf, HBASE-6721-DesigDoc.pdf, HBASE-6721_0.98_2.patch, HBASE-6721_10.patch, HBASE-6721_11.patch, HBASE-6721_12.patch, HBASE-6721_13.patch, HBASE-6721_14.patch, HBASE-6721_15.patch, HBASE-6721_8.patch, HBASE-6721_9.patch, HBASE-6721_9.patch, HBASE-6721_94.patch, HBASE-6721_94.patch, HBASE-6721_94_2.patch, HBASE-6721_94_3.patch, HBASE-6721_94_3.patch, HBASE-6721_94_4.patch, HBASE-6721_94_5.patch, HBASE-6721_94_6.patch, HBASE-6721_94_7.patch, HBASE-6721_98_1.patch, HBASE-6721_98_2.patch, HBASE-6721_hbase-6721_addendum.patch, HBASE-6721_trunk.patch, HBASE-6721_trunk.patch, HBASE-6721_trunk.patch, HBASE-6721_trunk1.patch, HBASE-6721_trunk2.patch, balanceCluster Sequence Diagram.svg, hbase-6721-v15-branch-1.1.patch, hbase-6721-v16.patch, hbase-6721-v17.patch, hbase-6721-v18.patch, hbase-6721-v19.patch, hbase-6721-v20.patch, hbase-6721-v21.patch, hbase-6721-v22.patch, hbase-6721-v23.patch, hbase-6721-v25.patch, hbase-6721-v26.patch, hbase-6721-v26_draft1.patch, hbase-6721-v27.patch, hbase-6721-v27.patch, hbase-6721-v27.patch.txt, hbase-6721-v28.patch, hbase-6721-v28.patch, hbase-6721-v29.patch, immediateAssignments Sequence Diagram.svg, randomAssignment Sequence Diagram.svg, retainAssignment Sequence Diagram.svg, roundRobinAssignment Sequence Diagram.svg
>
>
> In multi-tenant deployments of HBase, it is likely that a RegionServer will be serving out regions from a number of different tables owned by various client applications. Being able to group a subset of running RegionServers and assign specific tables to it, provides a client application a level of isolation and resource allocation.
> The proposal essentially is to have an AssignmentManager which is aware of RegionServer groups and assigns tables to region servers based on groupings. Load balancing will occur on a per group basis as well. 
> This is essentially a simplification of the approach taken in HBASE-4120. See attached document.



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