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