how to submit jars to a 地图 reduce job
how to submit jars to a map reduce job?
there maybe two ways :
1.server side
a.place the jars to HADOOP_HOME/lib dir; or
b.setup a HADOOP_CLASSPATH to include the jars needed by a job
2.client side
a.create a 'fat' job jar which contains a 'lib' dir to include the jars; or
b.use the 'libjars' option to includes certain jars