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From "Vinod Kumar Vavilapalli (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3524) Scan benchmark is more than 1.5x slower in 0.23
Date Tue, 21 Feb 2012 23:10:49 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3524?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Vinod Kumar Vavilapalli updated MAPREDUCE-3524:

    Assignee:     (was: Vinod Kumar Vavilapalli)

Thanks for the update Amol.

This was one of the crazier benchmarks where we had to do lot of work.

Unassigning it from myself - this was a team effort, thanks to Sid, Arun and Karam also!
> Scan benchmark is more than 1.5x slower in 0.23
> -----------------------------------------------
>                 Key: MAPREDUCE-3524
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3524
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: benchmarks, mr-am, mrv2, performance
>    Affects Versions: 0.23.1
>            Reporter: Karam Singh
>            Priority: Blocker
> Scan benchmark is more than 1.5X slower(almost 92% increased) in 0.23 than Hadoop-0.20.204
on 350 nodes size cluster.

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