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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13412) Region split decisions should have jitter
Date Wed, 08 Apr 2015 22:33:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14486224#comment-14486224
] 

Elliott Clark commented on HBASE-13412:
---------------------------------------

Thanks for the help [~jmhsieh] and [~ndimiduk]

> Region split decisions should have jitter
> -----------------------------------------
>
>                 Key: HBASE-13412
>                 URL: https://issues.apache.org/jira/browse/HBASE-13412
>             Project: HBase
>          Issue Type: New Feature
>          Components: regionserver
>    Affects Versions: 1.0.0, 2.0.0
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>             Fix For: 2.0.0, 1.1.0
>
>         Attachments: HBASE-13412-v1.patch, HBASE-13412-v2.patch, HBASE-13412-v3.patch,
HBASE-13412.patch, hbase-13412.addendum.patch
>
>
> Whenever a region splits it causes lots of IO (compactions are queued for a while). Because
of this it's important to make sure that well distributed tables don't have all of their regions
split at exactly the same time.
> This is basically the same as our compaction jitter.



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