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From "Billy Pearson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-938) major compaction period is not checked periodically
Date Wed, 12 Nov 2008 16:15:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12646940#action_12646940
] 

Billy Pearson commented on HBASE-938:
-------------------------------------

I like that idea sounds good to me. 
If we can write it in to the meta data then if only one file there and major compaction do
as you said above
that would make the major compaction much smarter and save on cpu and bandwidth.

> major compaction period is not checked periodically
> ---------------------------------------------------
>
>                 Key: HBASE-938
>                 URL: https://issues.apache.org/jira/browse/HBASE-938
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.18.0, 0.18.1
>         Environment: HBase 0.18 branch (should be RC1) + Hadoop 0.18 branch
>            Reporter: Rong-En Fan
>            Assignee: stack
>            Priority: Critical
>             Fix For: 0.19.0
>
>         Attachments: 938.patch, major.patch
>
>
> The major compaction period, hbase.hregion.majorcompaction, is not checked periodically.
Currently, we only request major compaction when the region is open or split at which point
we check whether the major compaction period is due.

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