echo "=====================正在开启datanode节点========================"
for i in root@hadoop101 root@hadoop102 root@hadoop103
do
        ssh $i ‘/opt/module/hadoop-2.7.2/sbin/hadoop-daemon.sh start datanode‘
        done
        echo "=====================正在开启secondarynamenode节点========================"
        ssh root@hadoop103 ‘/opt/module/hadoop-2.7.2/sbin/hadoop-daemon.sh start secondarynamenode‘
        echo "=====================正在开启ResourceManager节点========================"
        ssh root@hadoop102 ‘/opt/module/hadoop-2.7.2/sbin/yarn-daemon.sh start resourcemanager‘
        echo "=====================正在开启nodeManager节点========================"
        for i in root@hadoop101 root@hadoop102 root@hadoop103
        do
                    ssh $i ‘/opt/module/hadoop-2.7.2/sbin/yarn-daemon.sh start datamanager‘
                done
                echo "=============================正在启动Yarn==============================="
                ssh root@hadoop101 ‘/opt/module/hadoop-2.7.2/sbin/start-yarn.sh‘
                echo "=====================正在开启jobhistoryServer节点========================"
                ssh root@hadoop101 ‘/opt/module/hadoop-2.7.2/sbin/mr-jobhistory-daemon.sh start historyserver‘
        echo "=====================正在启动zookeeper节点========================"
        for i in root@hadoop101 root@hadoop102 root@hadoop103
        do          
            ssh $i ‘/opt/module/zookeeper-3.4.10/bin/zkServer.sh start‘
            done
        done
done
群关闭脚本
#!/bin/bash
echo "=====================正在关闭集群服务============================"
echo "=====================正在关闭zookeeper节点========================"
for i in root@hadoop101 root@hadoop102 root@hadoop103
do  ssh $i ‘/opt/module/zookeeper-3.4.10/bin/zkServer.sh stop‘
    done
echo "=====================正在关闭jobhistoryServer节点========================"
ssh root@hadoop101  ‘/opt/module/hadoop-2.7.2/sbin/mr-jobhistory-daemon.sh stop historyserver‘
echo "=====================正在关闭ResourceManager节点========================"
ssh root@hadoop102 ‘/opt/module/hadoop-2.7.2/sbin/yarn-daemon.sh stop resourcemanager‘
echo "=====================正在关闭nodeManager节点========================"
for i in root@hadoop101 root@hadoop102 root@hadoop103
do
        ssh $i ‘/opt/module/hadoop-2.7.2/sbin/yarn-daemon.sh stop datamanager‘
        done
        echo "=====================正在关闭secondarynamenode节点========================"
        ssh root@hadoop103 ‘/opt/module/hadoop-2.7.2/sbin/hadoop-daemon.sh stop secondarynamenode‘
        echo "=====================正在关闭namenode节点========================"
        ssh root@hadoop101 ‘/opt/module/hadoop-2.7.2/sbin/hadoop-daemon.sh stop namenode‘
        echo "=====================关闭datanode节点========================"
        for i in root@hadoop101 root@hadoop102 root@hadoop103
        do
                ssh $i ‘/opt/module/hadoop-2.7.2/sbin/hadoop-daemon.sh stop datanode‘
                done
        echo "=====================关闭Yarn节点========================"
        for i in root@hadoop101 root@hadoop102 root@hadoop103
        do
                ssh $i ‘/opt/module/hadoop-2.7.2/sbin/stop-yarn.sh‘
                done
 
        