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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-3050) Limit maximum number of files to include in a major compaction
Date Tue, 05 Oct 2010 21:47:34 GMT

     [ https://issues.apache.org/jira/browse/HBASE-3050?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Gray updated HBASE-3050:
---------------------------------

    Fix Version/s:     (was: 0.90.0)
                   0.92.0

Going to work on this in two weeks or so, punting to 0.92 anyways.

> Limit maximum number of files to include in a major compaction
> --------------------------------------------------------------
>
>                 Key: HBASE-3050
>                 URL: https://issues.apache.org/jira/browse/HBASE-3050
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Jonathan Gray
>            Assignee: Jonathan Gray
>            Priority: Minor
>             Fix For: 0.92.0
>
>
> We had a situation where we had massively overrun compactions during a load tests.
> A single store ended up with something like 200 store files.  This table also had large
values, like 1MB+.  A major compaction came in for the region and we OOME'd.
> It would be useful to have a maximum number of files to include during a major compaction
as a just-in-case measure if we do manage to get this many files in there.  Can make it so
0 means infinite so there will be no change in default behavior.

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