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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-775) max mapfiles to compact at one time
Date Fri, 15 Aug 2008 17:25:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12622928#action_12622928
] 

stack commented on HBASE-775:
-----------------------------

Hey Billy: Thanks for the patch.  You made size the determinant.  I may be wrong, but I didn't
think size mattered; the compaction is not done in RAM but by streaming a set of inputs to
an output.

> max mapfiles to compact at one time
> -----------------------------------
>
>                 Key: HBASE-775
>                 URL: https://issues.apache.org/jira/browse/HBASE-775
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Billy Pearson
>            Assignee: Billy Pearson
>            Priority: Blocker
>             Fix For: 0.2.1, 0.3.0
>
>         Attachments: 775-patch.txt
>
>
> Currently we compact all map files with no upper limit this could cause a regionserver
to OOME if the compaction get behind and the number of mapfiles build up.

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