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From "Jonathan Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11644) External MOB compaction tools
Date Tue, 05 Aug 2014 14:42:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14086324#comment-14086324

Jonathan Hsieh commented on HBASE-11644:

I reorganized the description to make it easier to follow.

> External MOB compaction tools
> -----------------------------
>                 Key: HBASE-11644
>                 URL: https://issues.apache.org/jira/browse/HBASE-11644
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Compaction, master
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
> The MOB files are involved in the HBase compaction. It means there's no chance to delete
and merge the MOB files. The external tools do this, one is a cleaner to clean the MOB files
that are expired (by TTL and minVersions), the other one is a sweep tool to clean the deleted
Cells in HBase and merge small files into bigger ones. These tools are triggered by users.
Besides, the cleaner could be a chore in HMaster.

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