Hadoop生态圈-zookeeper的API用法详解

　　　　　　　　　　　　　　　　　　　　Hadoop生态圈-zookeeper的API用法详解

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　作者：尹正杰

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一.测试前准备

1>.开启集群

[yinzhengjie@s101 ~]$ more `which xzk.sh`
#!/bin/bash
#@author :yinzhengjie
#blog:http://www.cnblogs.com/yinzhengjie
#EMAIL:y1053419035@qq.com

#判断用户是否传参
if [ $# -ne 1 ];then
    echo "无效参数，用法为: $0  {start|stop|restart|status}"
    exit
fi

#获取用户输入的命令
cmd=$1

#定义函数功能
function zookeeperManger(){
    case $cmd in
    start)
        echo "启动服务"        
        remoteExecution start
        ;;
    stop)
        echo "停止服务"
        remoteExecution stop
        ;;
    restart)
        echo "重启服务"
        remoteExecution restart
        ;;
    status)
        echo "查看状态"
        remoteExecution status
        ;;
    *)
        echo "无效参数，用法为: $0  {start|stop|restart|status}"
        ;;
    esac
}


#定义执行的命令
function remoteExecution(){
    for (( i=102 ; i<=104 ; i++ )) ; do
            tput setaf 2
            echo ========== s$i zkServer.sh  $1 ================
            tput setaf 9
            ssh s$i  "source /etc/profile ; zkServer.sh $1"
    done
}

#调用函数
zookeeperManger
[yinzhengjie@s101 ~]$ 
[yinzhengjie@s101 ~]$ xzk.sh start
启动服务
========== s102 zkServer.sh start ================
ZooKeeper JMX enabled by default
Using config: /soft/zk/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
========== s103 zkServer.sh start ================
ZooKeeper JMX enabled by default
Using config: /soft/zk/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
========== s104 zkServer.sh start ================
ZooKeeper JMX enabled by default
Using config: /soft/zk/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[yinzhengjie@s101 ~]$ xcall.sh jps
============= s101 jps ============
4505 Jps
命令执行成功
============= s102 jps ============
3672 Jps
3643 QuorumPeerMain
命令执行成功
============= s103 jps ============
3376 Jps
3341 QuorumPeerMain
命令执行成功
============= s104 jps ============
3419 Jps
3390 QuorumPeerMain
命令执行成功
============= s105 jps ============
3802 Jps
命令执行成功
[yinzhengjie@s101 ~]$ 

[yinzhengjie@s101 ~]$ xzk.sh start