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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-7519) Support level compaction
Date Fri, 18 Jan 2013 19:58:14 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7519?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Shelukhin updated HBASE-7519:
------------------------------------

    Attachment: level-compactions-notes.txt

Updating the document on scan and migrations. The more I update the document the more I think
we may actually benefit from the manifest file too, as it makes certain recovery and migration
scenarios simpler by providing a sort of a "transactional" mechanism for updating file sets.
                
> 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, 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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