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From "Jingcheng Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15381) Implement a distributed MOB compaction by procedure
Date Thu, 21 Apr 2016 08:23:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15251543#comment-15251543
] 

Jingcheng Du commented on HBASE-15381:
--------------------------------------

Will add such things to the design document. Thanks a lot.

> Implement a distributed MOB compaction by procedure
> ---------------------------------------------------
>
>                 Key: HBASE-15381
>                 URL: https://issues.apache.org/jira/browse/HBASE-15381
>             Project: HBase
>          Issue Type: Improvement
>          Components: mob
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>         Attachments: HBASE-15381-v2.patch, HBASE-15381.patch, mob distributed compaction
design-v2.pdf, mob distributed compaction design.pdf
>
>
> In MOB, there is a periodical compaction which runs in HMaster (It can be disabled by
configuration), some small mob files are merged into bigger ones. Now the compaction only
runs in HMaster which is not efficient and might impact the running of HMaster. In this JIRA,
a distributed MOB compaction is introduced, it is triggered by HMaster, but all the compaction
jobs are distributed to HRegionServers.



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