Hi Hadoop Users,
In hadoop 2.2.0, if I want yarn applications to be able to include external
jars, I need to specify "yarn.application.classpath" in yarn-site.xml,
including the default value, so it will be like this:
<property>
<description>CLASSPATH for YARN applications. A comma-separated list
of CLASSPATH entries</description>
<name>yarn.application.classpath</name>
<value>$HADOOP_CONF_DIR,$HADOOP_COMMON_HOME/share/hadoop/common/*,$HADOOP_COMMON_HOME/share/hadoop/common/lib/*,$HADOOP_HDFS_HOME/share/hadoop/hdfs/*,$HADOOP_HDFS_HOME/share/hadoop/hdfs/lib/*,$HADOOP_YARN_HOME/share/hadoop/yarn/*,$HADOOP_YARN_HOME/share/hadoop/yarn/lib/*,/my/own/external/jars</value>
</property>
While in hadoop 1.0.4, I just need to modify "HADOOP_CLASSPATH" in hadoop-env.sh
I just want to know if there are more perfect / cleaner way to do this?
I don't like to have to repeat the default values of
yarn.application.classpath, I want it more like to use some kine extensions,
such as "yarn.application.classpath.ext":
<property>
<description>CLASSPATH for YARN applications. A comma-separated list
of CLASSPATH entries</description>
<name>yarn.application.classpath.ext</name>
<value>/my/own/external/jars</value>
</property>
Best regards,
Henry
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