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https://issues.apache.org/jira/browse/HBASE-7519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13557443#comment-13557443
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Sergey Shelukhin commented on HBASE-7519:
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...note also the logic changes described (key-before, split point, and other
minor ones). Existing code will be invalid on those. It seems like it's easiest
to achieve by encapsulating file management into a class.
> Support level compaction
> ------------------------
>
> Key: HBASE-7519
> URL: https://issues.apache.org/jira/browse/HBASE-7519
> Project: HBase
> Issue Type: New Feature
> Components: Compaction
> Reporter: Jimmy Xiang
> Assignee: Jimmy Xiang
> Attachments: level-compaction.pdf, level-compactions-notes.txt
>
>
> The level compaction algorithm may help HBase for some use cases, for
> example, read heavy loads (especially, just one version is used), relative
> small key space updated frequently.
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