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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7902) deletes may be removed during minor compaction, in non-standard compaction schemes
Date Tue, 26 Feb 2013 21:08:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13587558#comment-13587558
] 

Elliott Clark commented on HBASE-7902:
--------------------------------------

bq.I wish the BigTable paper didn't suggest this was an appropriate use case.
Me too.
                
> deletes may be removed during minor compaction,  in non-standard compaction schemes
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-7902
>                 URL: https://issues.apache.org/jira/browse/HBASE-7902
>             Project: HBase
>          Issue Type: Improvement
>          Components: Compaction
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>            Priority: Minor
>         Attachments: HBASE-7902-v0.patch, HBASE-7902-v0-with-7843.patch, HBASE-7902-v1.patch
>
>
> Deletes are only removed during major compaction now. However, in presence of file ordering,
deletes can be removed during minor compaction too, as long as there's no file that is not
being compacted that is older than the files that are.

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