Hadoop startup and shutdown commands

1. Start the master node HDFS NameNode process

hadoop-daemon.sh start namenode
hadoop-daemon.sh start datanode

• View process
  jps

2. Start the HDFS DataNode process of the slave node

hadoop-daemon.sh start datanode

3. Start/stop the YARN ResourceManager process on the master node

yarn-daemon.sh start resourcemanager
yarn-daemon.sh start nodemanager

4. Start/shutdown the YARN nodemanager process on the slave node

yarn-daemon.sh start nodemanager
yarn-daemon.sh stop nodemanager

5. Start/shut down the SecondaryNameNode process on node hadoop02

hadoop-daemon.sh start secondarynamenod
hadoop-daemon.sh stop secondarynamenod

Start the script with one click on the master node

1、启动/关闭所以HDFS服务进程
start-dfs.sh 或 stop-dfs.sh
2、启动或关闭所以YARN服务进程
start-yarn.sh 或stop-yarn.sh
3、启动或关闭整个hadoop集群
start-all.sh 或stop-all.sh

Note: hdfs namenode -format needs to be formatted before starting the cluster for the first time

More Hadoop articles continue to update
Hadoop download and install
Hadoop cluster startup configuration