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From "Chia-Ping Tsai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17658) Bookkeeping issue in BaseLoadBalancer for Table Skew
Date Mon, 31 Jul 2017 07:10:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106890#comment-16106890
] 

Chia-Ping Tsai commented on HBASE-17658:
----------------------------------------

HBASE-18480 is based on this issue. I will push this to branch-1.3 and branch-1.2 tomorrow
if no objections. FYI [~yuzhihong@gmail.com]

> Bookkeeping issue in BaseLoadBalancer for Table Skew
> ----------------------------------------------------
>
>                 Key: HBASE-17658
>                 URL: https://issues.apache.org/jira/browse/HBASE-17658
>             Project: HBase
>          Issue Type: Bug
>          Components: Balancer
>            Reporter: Tim Brown
>            Assignee: Tim Brown
>             Fix For: 2.0.0, 1.4.0
>
>         Attachments: JIRA-17658.master.001.patch
>
>
> Currently when numMaxRegionsPerTable of a given table increases above the current maximum,
the value is not properly updated. This means that the cost for Table Skew cannot get worse
for a given region move during the balancer process leading to an imbalanced cluster with
respect to Table Skew.



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