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https://issues.apache.org/jira/browse/MAPREDUCE-4949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13560708#comment-13560708
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Hudson commented on MAPREDUCE-4949:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk #1322 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1322/])
MAPREDUCE-4949. Enable multiple pi jobs to run in parallel. (sandyr via
tucu) (Revision 1437029)
Result = SUCCESS
tucu : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1437029
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-examples/src/main/java/org/apache/hadoop/examples/QuasiMonteCarlo.java
> Enable multiple pi jobs to run in parallel
> ------------------------------------------
>
> Key: MAPREDUCE-4949
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4949
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: examples
> Affects Versions: 2.0.2-alpha
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
> Priority: Minor
> Fix For: 2.0.3-alpha
>
> Attachments: MAPREDUCE-4949.patch
>
>
> Currently the hadoop pi example uses a hardcoded temporary directory to store
> its inputs and outputs. This makes it so that only one pi job can run at a
> time, and that if it is cancelled, the temporary directory must be manually
> deleted.
> I propose using a temporary directory based on a timestamp and random number
> to avoid these conflicts
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