具体代码

#!/bin/bash
if [ $# -lt 1 ]
then
    echo "No Args Input..."
    exit ;
fi
case $1 in
"start")
        echo " =================== 启动 hadoop集群 ==================="
        echo ""
        echo " --------------- 启动 hdfs ---------------"
        ssh hadoop11 "/opt/module/hadoop-3.1.3/sbin/start-dfs.sh"
        echo ""
        echo " --------------- 启动 yarn ---------------"
        ssh hadoop12 "/opt/module/hadoop-3.1.3/sbin/start-yarn.sh"
        echo ""
        echo " ------------- 启动 历史服务器 -----------"
        ssh hadoop11 "mapred --daemon start historyserver"
        
        # 添加Web访问地址
        echo ""
        echo ""
        echo "======Hadoop Web UI 访问地址========"
        echo "HDFS：http://hadoop11:9870"
        echo "YARN 资源管理器：http://hadoop12:8088"
        echo "MapReduce历史服务器：http://hadoop11:19888/jobhistory"
        echo "====================================="

;;
"stop")
        echo " =================== 关闭 hadoop集群 ==================="
        echo ""
        echo " --------------- 关闭 yarn ---------------"
        ssh hadoop12 "/opt/module/hadoop-3.1.3/sbin/stop-yarn.sh"
        echo ""
        echo " --------------- 关闭 hdfs ---------------"
        ssh hadoop11 "/opt/module/hadoop-3.1.3/sbin/stop-dfs.sh"
        echo ""
        echo " ------------- 关闭 历史服务器 -----------"
        ssh hadoop11 "mapred --daemon stop historyserver"

;;
*)
    echo "输入参数有误..."
;;
esac