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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6721) RegionServer Group based Assignment
Date Wed, 16 Dec 2015 11:08:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15059831#comment-15059831
] 

Ted Yu commented on HBASE-6721:
-------------------------------

bq. include the group rb file in the TestShell class
TestShell works by excluding replication related shell tests:
{code}
  public void testRunShellTests() throws IOException {
    System.setProperty("shell.test.exclude", "replication_admin_test.rb");
{code}
Can you refer to hbase-shell//src/test/java/org/apache/hadoop/hbase/client/TestReplicationShell.java
in branch-1.1 and create TestRegionServerGroupShell.java ?
This way, we don't need to wait for restoration of TestShell.

> 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, 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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