各个服务组件逐一启动/停止

(1)分别启动/停止HDFS组件

hadoop-daemon.sh  start / stop  namenode / datanode / secondarynamenode

(2)启动/停止YARN

yarn-daemon.sh  start / stop  resourcemanager / nodemanager

各个模块分开启动/停止(配置ssh是前提)常用

(1)整体启动/停止HDFS

start-dfs.sh   /  stop-dfs.sh

(2)整体启动/停止YARN

start-yarn.sh  /  stop-yarn.sh