Hadoop集群常用脚本

Posted 2021-10-15 刘元涛

hadoop群起脚本

#!/bin/bash

if [ $# -lt 1 ]
then
    echo "No Args Input..."
    exit ;
fi

case $1 in
"start")
        echo " =================== 启动 hadoop集群 ==================="

        echo " --------------- 启动 hdfs ---------------"
        ssh node101 "/opt/module/hadoop3.1.4/sbin/start-dfs.sh"
        echo " --------------- 启动 yarn ---------------"
        ssh node102 "/opt/module/hadoop3.1.4/sbin/start-yarn.sh"
        echo " --------------- 启动 historyserver ---------------"
        ssh node101 "/opt/module/hadoop3.1.4/bin/mapred --daemon start historyserver"
;;
"stop")
        echo " =================== 关闭 hadoop集群 ==================="

        echo " --------------- 关闭 historyserver ---------------"
        ssh node101 "/opt/module/hadoop3.1.4/bin/mapred --daemon stop historyserver"
        echo " --------------- 关闭 yarn ---------------"
        ssh node102 "/opt/module/hadoop3.1.4/sbin/stop-yarn.sh"
        echo " --------------- 关闭 hdfs ---------------"
        ssh node101 "/opt/module/hadoop3.1.4/sbin/stop-dfs.sh"
;;
*)
    echo "Input Args Error..."
;;
esac

查看所有机器运行的情况

#!/bin/bash

for host in node101 node102 node103
do
        echo =============== $host ===============
        ssh $host jps 
done