[ 
https://issues.apache.org/jira/browse/MAPREDUCE-4087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13243088#comment-13243088
 ] 

Hudson commented on MAPREDUCE-4087:
-----------------------------------

Integrated in Hadoop-Hdfs-trunk-Commit #2032 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/2032/])
    MAPREDUCE-4087. [Gridmix] GenerateDistCacheData job of Gridmix can become 
slow in some cases (ravigummadi) (Revision 1307740)

     Result = SUCCESS
ravigummadi : 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1307740
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* 
/hadoop/common/trunk/hadoop-mapreduce-project/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/GenerateDistCacheData.java

                
> [Gridmix] GenerateDistCacheData job of Gridmix can become slow in some cases
> ----------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4087
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4087
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Ravi Gummadi
>            Assignee: Ravi Gummadi
>         Attachments: 4087.patch, 4087.trunk.patch
>
>
> In map() method of GenerateDistCacheData job of Gridmix, val.setSize() is 
> done every time based on the bytes to be written to a distributed cache file. 
> When we try to write data to next distributed cache file in the same map 
> task, the size of random data generated in each iteration can become small 
> based on the particular case. This can make this dist cache data generation 
> slow.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: 
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Reply via email to