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From "Cyril Scetbon (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-5604) Vnodes decrease Hadoop performances cause it creates too many small splits
Date Tue, 18 Jun 2013 12:41:20 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13686571#comment-13686571
] 

Cyril Scetbon edited comment on CASSANDRA-5604 at 6/18/13 12:39 PM:
--------------------------------------------------------------------

I've made some tests with a program which lasts 8 minutes before [CASSANDRA-5544|https://issues.apache.org/jira/browse/CASSANDRA-5544]
and 1h17 with multiple mappers !
                
      was (Author: cscetbon):
    I've made some tests with a program which lasts 8 minutes before [CASSANDRA-5544|https://issues.apache.org/jira/browse/CASSANDRA-5544]
and 56 minutes after to complete only 25% of the task !
                  
> Vnodes decrease Hadoop performances cause it creates too many small splits
> --------------------------------------------------------------------------
>
>                 Key: CASSANDRA-5604
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5604
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Hadoop
>    Affects Versions: 1.2.4
>         Environment: Linux Ubuntu 12.04 LTS x86_64
>            Reporter: Cyril Scetbon
>            Priority: Trivial
>


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