[
https://issues.apache.org/jira/browse/MAPREDUCE-5459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13785089#comment-13785089
]
Hudson commented on MAPREDUCE-5459:
-----------------------------------
SUCCESS: Integrated in Hadoop-Hdfs-trunk #1541 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1541/])
MAPREDUCE-5459. Update documentation on how to run MRv1 examples on YARN.
Contributed by Zhijie Shen. (acmurthy:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1528626)
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/apt/MapReduce_Compatibility_Hadoop1_Hadoop2.apt.vm
> Update the doc of running MRv1 examples jar on YARN
> ---------------------------------------------------
>
> Key: MAPREDUCE-5459
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5459
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Zhijie Shen
> Assignee: Zhijie Shen
> Fix For: 2.1.2-beta
>
> Attachments: MAPREDUCE-5459.1.patch
>
>
> In addition to adding two env vars: HADOOP_USER_CLASSPATH_FIRST and
> HADOOP_CLASSPATH, we still need to add
> {code}
> <property>
> <name>mapreduce.job.user.classpath.first</name>
> <value>true</value>
> </property>
> {code}
> in mapred-site.xml to make sure that the MRv1 examples jar runs correctly on
> YARN. Some examples will use Java reflection to find the classes in the
> examples jar dynamically when they are running. With this configuration, the
> MRv1 examples jar will appear before the MRv2 examples jar in CLASSPATH of
> the processes in YARN containers. Therefore, the classes found via reflection
> will be picked from MRv1 examples jar instead of MRv2 examples jar as well.
> MapReduce_Compatibility_Hadoop1_Hadoop2.apt.vm needs to be updated to
> document this.
--
This message was sent by Atlassian JIRA
(v6.1#6144)
