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https://issues.apache.org/jira/browse/MAPREDUCE-4949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13557765#comment-13557765
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Hadoop QA commented on MAPREDUCE-4949:
--------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12565577/MAPREDUCE-4949.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-mapreduce-project/hadoop-mapreduce-examples.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3251//testReport/
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3251//console
This message is automatically generated.
> 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
> 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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