bin/yarn should barf early if HADOOP_COMMON_HOME or HADOOP_HDFS_HOME are not set
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Key: MAPREDUCE-3190
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3190
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: mrv2
Affects Versions: 0.23.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon
Attachments: mr-3190.txt
Currently, if these env vars are not set when you run bin/yarn, it will crash
with various ClassNotFoundExceptions, having added {{/share/hadoop/hdfs}} to
the classpath. Rather, we should check for these env vars in the wrapper script
and display a reasonable error message.
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