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From "Jingcheng Du (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15381) Implement a distributed MOB compaction by procedure
Date Thu, 28 Apr 2016 11:07:12 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jingcheng Du updated HBASE-15381:
---------------------------------
    Attachment: HBASE-15381-v5.patch

Upload a new patch V5 to fix a LOG related issue.

> 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-v3.patch, HBASE-15381-v4.patch,
HBASE-15381-v5.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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