搭建环境

• 3台阿里云服务器，ip假设为：8.136.96.X,8.136.96.Y,8.136.96.Z
• 操作系统：CentOS Linux release 7.9.2009 (Core)
• Zookeeper版本：3.7.2

搭建

1. 下载Zookeeper：官网下载地址

2. 将Zookeeper分别拷贝到云服务器/opt目录下,并登录服务器，访问/opt目录：cd /opt

3. 解压：tar -zxvf apache-zookeeper-3.7.2-bin.tar.gz

4. 修改文件名：mv apache-zookeeper-3.7.2-bin zookeeper3.7

5. 新增data目录：cd zookeeper3.7 & mkdir data

6. 新建myid文件：touch myid

7. 写入对应的id：echo 1>myid, 注意1对应8.136.96.X，echo 2>myid 对应的8.136.96.Y， echo 3>myid对应8.136.96.Z

8. 修改配置文件：

     cd conf
     cp zoo_sample.cfg zoo.cfg
     vim zoo.cfg
   

9. 修改文件配置文件内容

   ​x
   # The number of milliseconds of each tick
   tickTime=2000
   # The number of ticks that the initial
   # synchronization phase can take
   initLimit=10
   # The number of ticks that can pass between
   # sending a request and getting an acknowledgement
   syncLimit=5
   # the directory where the snapshot is stored.
   # do not use /tmp for storage, /tmp here is just
   # example sakes.
   #这里修改
   dataDir=/opt/zookeeper/data
   # the port at which the clients will connect
   #这里修改
   clientPort=2181
   # the maximum number of client connections.
   # increase this if you need to handle more clients
   #maxClientCnxns=60
   #
   # Be sure to read the maintenance section of the
   # administrator guide before turning on autopurge.
   #
   # http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
   #
   # The number of snapshots to retain in dataDir
   #autopurge.snapRetainCount=3
   # Purge task interval in hours
   # Set to "0" to disable auto purge feature
   #autopurge.purgeInterval=1
   
   ## Metrics Providers
   #
   # https://prometheus.io Metrics Exporter
   #metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
   #metricsProvider.httpPort=7000
   #metricsProvider.exportJvmInfo=true
   # 这里新增
   server.1=8.136.96.X:2888:3888
   server.2=8.136.96.Y:2888:3888
   server.3=8.136.96.Z:2888:3888
   

10. 关闭防火墙或者开发端口

    xxxxxxxxxx
    # 关闭防火墙
    systemctl stop firewalld & systemctl disable firewalld
    # 开放端口
    firewall-cmd --zone=public --add-port=2181/tcp --permanent
    firewall-cmd --zone=public --add-port=2888/tcp --permanent
    firewall-cmd --zone=public --add-port=3888/tcp --permanent
    firewall-cmd --reload
    

11. 分别启动： /opt/zookeeper3.7/bin/zkServer.sh start

12. 查看运行状态：/opt/zookeeper3.7/bin/zkServer.sh status