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https://issues.apache.org/jira/browse/MAPREDUCE-3505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ahmed Radwan updated MAPREDUCE-3505:
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Attachment: MAPREDUCE-3505_rev2.patch
Attaching an updated patch where a new test case is added to TestMRApps (Per
Arun's comment). Thanks!
> yarn APPLICATION_CLASSPATH needs to be overridable
> --------------------------------------------------
>
> Key: MAPREDUCE-3505
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3505
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Bruno Mahé
> Assignee: Ahmed Radwan
> Labels: bigtop
> Fix For: 0.23.1
>
> Attachments: MAPREDUCE-3505.patch, MAPREDUCE-3505_rev2.patch
>
>
> Right now MRApps sets the classpath to just being mrapp-generated-classpath,
> its content and a hardcoded list of directories.
> If I understand correctly mrapp-generated-classpath is only there for testing
> and may change or disappear at any time
> The list of hardcoded directories is defined in
> hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
> at line 92.
> For convenience, here is its current content:
> {noformat}
> /**
> * Classpath for typical applications.
> */
> public static final String[] APPLICATION_CLASSPATH =
> new String[] {
> "$HADOOP_CONF_DIR",
> "$HADOOP_COMMON_HOME/share/hadoop/common/*",
> "$HADOOP_COMMON_HOME/share/hadoop/common/lib/*",
> "$HADOOP_HDFS_HOME/share/hadoop/hdfs/*",
> "$HADOOP_HDFS_HOME/share/hadoop/hdfs/lib/*",
> "$YARN_HOME/modules/*",
> "$YARN_HOME/lib/*"
> };
> {noformat}
> Not all deployment scenarii fit in this layout and therefore we need a
> standardized way to customize this class path.
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