mvn clean package -P prd
spark2-submit\
--class com.fcbox.spark.example.DemoSta\
--master yarn\
--num-executors 6\
--driver-memory 1g\
--executor-memory 4g\
--executor-cores 2\
--conf spark.yarn.executor.memoryOverhead=3072\
fcbox-spark-job.jar 20180520