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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-938) major compaction period is not checked periodically
Date Wed, 12 Nov 2008 05:27:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12646807#action_12646807
] 

stack commented on HBASE-938:
-----------------------------

Patch seems to be working but it introduces a new issue in that it ensures that we check for
major compaction every 24 hours and that a major compation will run every 24 hours, even if
no flushes have come through meantime.   We don't want all hbase data rewritten every 24 hours.

Will try and fix as part of this issue.

> 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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