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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6721) RegionServer Group based Assignment
Date Sat, 13 Feb 2016 01:01:24 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15145646#comment-15145646
] 

stack commented on HBASE-6721:
------------------------------

Thanks [~eclark]

How about we commit what we have here to a branch and then work on the list above to get it
committed? I'm game for helping out on fixing the ServerName stuff, the protobuf, and moving
the thing to its own module (shell-work, etc.).

> RegionServer Group based Assignment
> -----------------------------------
>
>                 Key: HBASE-6721
>                 URL: https://issues.apache.org/jira/browse/HBASE-6721
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Francis Liu
>            Assignee: Francis Liu
>              Labels: hbase-6721
>         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, 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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