https://blog.csdn.net/u012102306/article/details/51637366
/bin/spark-submit --master yarn-cluster --num-executors 100 --executor-memory 6G --executor-cores 4 --driver-memory 1G --conf spark.default.parallelism=1000 --conf spark.storage.memoryFraction=0.5 --conf spark.shuffle.memoryFraction=0.3