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 do 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\[@\]}" do # 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 