Yarn Command Line

Starting from Hadoop 2.0, we can use Yarn to run mapreduce as an application.

• Running a Wordcount using Yarn

         $yarn jar $HADOOP_HOME/HadoopSamples.jar \
          mr.wordcount  -libjars $MYLIBS/custom-libs.jar

• To get list of all applications/mapreduce that is running
  
  $yarn application -list
• To get information on specific mapreduce job
  
  $yarn application -status application_133690873084_3466
• Reference:  http://www.slideshare.net/martyhall/hadoop-tutorial-mapreduce-on-yarn-part-1-overview-and-installation 
• http://www.coreservlets.com/hadoop-tutorial/#Tutorial-Intro
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