hama-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Edward J. Yoon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-761) Improvement for GraphJobMessage comparation operation
Date Thu, 13 Jun 2013 15:15:21 GMT

    [ https://issues.apache.org/jira/browse/HAMA-761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13682330#comment-13682330
] 

Edward J. Yoon commented on HAMA-761:
-------------------------------------

{quote}In the case of vertex value has large value, the improvements will be obvious.{quote}

I think so. +1 for the patch, all the unit tests passed! 

Will you try to commit your changes yourself? Don't forget CHANGE.txt and the commit message
"HAMA-761: Improvement for ...".
                
> Improvement for GraphJobMessage comparation operation
> -----------------------------------------------------
>
>                 Key: HAMA-761
>                 URL: https://issues.apache.org/jira/browse/HAMA-761
>             Project: Hama
>          Issue Type: Improvement
>          Components: graph
>    Affects Versions: 0.6.1
>            Reporter: MaoYuan Xian
>            Assignee: MaoYuan Xian
>         Attachments: HAMA-761.patch
>
>
> Currently, GraphJobMessage comparation opertion depends on the default comparator (org.apache.hadoop.io.WritableComparator
used), which has to read out all GraphJobMessage message (including vertexId and vertexValue)
when does the comparation. 
> Since lots of comparation operations happen in graph computing, this limitation makes
a performance downgrade.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message