Hi,
While running MR Jobs over a yarn cluster I keep on getting:
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/hadoop/mapreduce/v2/app/MRAppMaster
Caused by: java.lang.ClassNotFoundException:
org.apache.hadoop.mapreduce.v2.app.MRAppMaster
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: org.apache.hadoop.mapreduce.v2.app.MRAppMaster.
Program will exit.
My client is running from a different environment from where the cluster is
running.
If I submit a job from the cluster environment; it runs successfully.
I have verified the property yarn.application.classpath before submitting it
from the client. The value is set to:
$HADOOP_CONF_DIR,$HADOOP_COMMON_HOME/*,$HADOOP_COMMON_HOME/lib/*,$HADOOP_HDFS_HOME/*,$HADOOP_HDFS_HOME/lib/*,$HADOOP_MAPRED_HOME/*,$HADOOP_MAPRED_HOME/lib/*,$YARN_HOME/*,$YARN_HOME/lib/*
Please let me know if I am missing anything.
Cheers,
Subroto Sanyal
