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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10076) Backport MapReduce over snapshot files [0.94]
Date Tue, 17 Dec 2013 00:39:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13849932#comment-13849932
] 

Enis Soztutar commented on HBASE-10076:
---------------------------------------

bq. I'm curious what kind of performance improvement you are seeing with the snapshot scan
In my tests, I was able to get 50-60 MB/s per region, versus 10-11 MB/s for regular scans
(see https://issues.apache.org/jira/browse/HBASE-8369?focusedCommentId=13805748&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13805748).

Bryan, can you also share your performance numbers if you can quantify? 

> Backport MapReduce over snapshot files [0.94]
> ---------------------------------------------
>
>                 Key: HBASE-10076
>                 URL: https://issues.apache.org/jira/browse/HBASE-10076
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Jesse Yates
>             Fix For: 0.94.15
>
>         Attachments: hbase-10076-v0.patch
>
>
> MapReduce over Snapshots would be valuable on 0.94.



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