#!/bin/bash
#1 获取输入参数个数，如果没有参数，直接退出
pcount=$#
if((pcount==0)); then
echo no args;
exit;
fi

#2 获取文件名称
p1=$1
fname=`basename $p1`
echo fname=$fname

#3 获取上级目录到绝对路径
pdir=`cd -P $(dirname $p1); pwd`
echo pdir=$pdir

#4 获取当前用户名称
user=`whoami`

#5 循环
for((host=103; host<105; host++)); do
        echo ------------------- hadoop$host --------------
        rsync -rvl $pdir/$fname $user@hadoop$host:$pdir
done

#!/bin/bash
for i in lxl@hadoop102 lxl@hadoop103 lxl@hadoop104
do
        echo "================           $i             ================"
        ssh $i '/opt/module/jdk1.8.0_144/bin/jps'
done

#!/bin/bash
for i in lxl@hadoop102 lxl@hadoop103 lxl@hadoop104
do
        echo "================           $i             ================"
        ssh $i '/opt/module/zookeeper-3.4.10/bin/zkServer.sh start'
done

 
#!/bin/bash
echo "================     开始启动所有节点服务            ==========="
echo "================     正在启动Zookeeper               ==========="
for i in lxl@hadoop102 lxl@hadoop103 lxl@hadoop104
do
        ssh $i '/opt/module/zookeeper-3.4.10/bin/zkServer.sh start'
done
echo "================     正在启动HDFS                    ==========="
ssh lxl@hadoop102 '/opt/module/hadoop-2.7.2/sbin/start-dfs.sh'
echo "================     正在启动YARN                    ==========="
ssh lxl@hadoop103 '/opt/module/hadoop-2.7.2/sbin/start-yarn.sh'
echo "================     正在开启JobHistoryServer        ==========="
ssh lxl@hadoop102 '/opt/module/hadoop-2.7.2/sbin/mr-jobhistory-daemon.sh start historyserver'

#!/bin/bash
echo "================     开始关闭所有节点服务            ==========="
echo "================     正在关闭Zookeeper               ==========="
for i in lxl@hadoop102 lxl@hadoop103 lxl@hadoop104
do
        ssh $i '/opt/module/zookeeper-3.4.10/bin/zkServer.sh stop'
done
echo "================     正在关闭HDFS                    ==========="
ssh lxl@hadoop102 '/opt/module/hadoop-2.7.2/sbin/stop-dfs.sh'
echo "================     正在关闭YARN                    ==========="
ssh lxl@hadoop103 '/opt/module/hadoop-2.7.2/sbin/stop-yarn.sh'
echo "================     正在关闭JobHistoryServer        ==========="
ssh lxl@hadoop102 '/opt/module/hadoop-2.7.2/sbin/mr-jobhistory-daemon.sh stop historyserver'