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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12478) HBASE-10141 and MIN_VERSIONS are not compatible
Date Fri, 14 Nov 2014 22:56:34 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12478?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Enis Soztutar updated HBASE-12478:
----------------------------------
    Assignee: Ted Yu

> HBASE-10141 and MIN_VERSIONS are not compatible
> -----------------------------------------------
>
>                 Key: HBASE-12478
>                 URL: https://issues.apache.org/jira/browse/HBASE-12478
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Enis Soztutar
>            Assignee: Ted Yu
>             Fix For: 2.0.0, 0.98.9, 0.99.2
>
>         Attachments: 12478-v1.txt, 12478-v2.txt
>
>
> HBASE-10141 is a good optimization, eliminating the need to scan already expired files
(through TTL). However, I think if MIN_VERSIONS is set, it will not ensure that there will
be at least that many versions since it bypasses the scan layer. 
> I think we can just do a simple check before the HBASE-10141 optimization to see whether
MIN_VERSIONS is set for the table, and if so just do the regular old way of doing the scan
in the compaction. 



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