1、Hadoop集群查看状态

搭建Hadoop数据集群时，按以下路径操作即可生成脚本

$test_1@analysis01 bin$ $ pwd

/home/test_1/hadoop/bin

$test_01@analysis01 bin$ $ vim jpsall

#!/bin/bash

for host in analysis01 analysis02 analysis03

echo =============== $host ===============

ssh $host jps

done

$test_1@analysis01$ ./jpsall #运行脚本，查看状态

=============== analysis01 ===============

4304 ResourceManager

3697 NameNode

3833 DataNode

4426 NodeManager

7595 Jps

4063 SecondaryNameNode

=============== analysis02 ===============

4480 Jps

3538 NodeManager

3437 DataNode

=============== analysis03 ===============

3396 DataNode

3487 NodeManager

4431 Jps

2、Hadoop集群关闭

$test_1@analysis01 \~$ $ vim shutdown_servers.sh

#!/bin/bash

服务器IP地址列表

servers=("192.168.2.131" "192.168.2.132" "192.168.2.130")

遍历服务器列表

for server in "${servers $@$ }"

使用ssh登录到服务器并执行关机命令

ssh root@$server 'shutdown -h now'

done

$test_1@analysis01 \~$ $ ./ shutdown_servers.sh #执行脚本

3、zookeeper启动关闭

$root@master bin$ # vim xzk.sh

#!/bin/bash

cmd=$1

if $$# -gt 1$ ; then echo param must be 1; exit ; fi

echo ================== master $@=============

tput setaf 3

ssh master "source /etc/profile ; zkServer.sh $cmd"

for (( i=1 ; i<=2 ; i++ )) ; do

tput setaf 5

echo ============== slave $i$ @ ==================

tput setaf 6

ssh slave $i "source /etc/profile ; zkServer.sh$ cmd"

done

$root@master bin$ # ./xzk.sh #执行脚本