Spark Run Command.txt

--num-executors NUM
--driver-cores  NUM
--executor-cores NUM

--driver-memory MEM 
--executor-memory MEM


spark-shell --master yarn 
		--num-executors 4 
		--executor-memory 2g 
		--name sampleapp


-- scala code to read all properties of the spark config
sc.getConf.getAll foreach println