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From "Billy Pearson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-775) max mapfiles to compact at one time
Date Fri, 15 Aug 2008 22:37:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12623043#action_12623043
] 

Billy Pearson commented on HBASE-775:
-------------------------------------

I thought we did it in Ram if its just streaming then there should not be a max. we should
do all we can on each compaction that would be less work on the next compaction. I assume
there some kind of index that is in memory so we keep track of max versions etc so that would
be the only factor to limit the count or size of the compaction.

Sense we do not compact in memory I do not see any reason for this issue then so it would
be resolved as won't fix 
HBASE-64 should also be resolved as HBASE 785 solved that problem


> 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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