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From "Nicolas Spiegelberg (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-3189) Stagger Major Compactions
Date Tue, 02 Nov 2010 21:31:04 GMT

     [ https://issues.apache.org/jira/browse/HBASE-3189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Nicolas Spiegelberg updated HBASE-3189:

    Attachment: HBASE-3189.patch

Fix for 0.90.  Adds a 'jitter' config option to stagger compactions on a per-store basis.

> Stagger Major Compactions
> -------------------------
>                 Key: HBASE-3189
>                 URL: https://issues.apache.org/jira/browse/HBASE-3189
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>            Reporter: Nicolas Spiegelberg
>            Assignee: Nicolas Spiegelberg
>            Priority: Minor
>         Attachments: HBASE-3189.patch
> For pre-split regions, we can get into a case where the oldest HFile in a Store is pretty
large and will not encounter a compaction within the 24hr major compact window.  If that's
the case, we don't want multiple multi-GB major compactions being triggered at the same time.
 Add ability to stagger the major compaction expiration window.

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