/etc/sysconfig/network-scripts/ifcfg-eth0
service network restart

性能调优的王道是优化资源调度，或者给更多的资源进行调度
/server/spark/spark-submit
--class cn.spark.sparkest.core.WordCountCluster
--num-executors 3
--driver-memory 100m
--executor-memory 100m
--executor-cores 3
/server/SparkTest-0.0.1-SNASPSHOT-jar-with-dependencies.jar

Spark Core 、Sqark SQl 和 Spark Streaming

spark调优