Zookeeper集群搭建实践

矫情吗；* 2022-06-17 04:23 133阅读 0赞

# 前言 #

这里记录一下第一次搭建的过程，此次搭建的是3.4.6版本的，只是单IP多端口的实践，如果想要多个IP搭建的话，可以多安装几个虚拟机

# 环境 #

JDK1.6或者1.6以上

# 步骤 #

1.修改操作系统的/etc/hosts vi /etc/hosts

在文件中添加

192.168.126.129 edu-provider-01

前面的IP是虚拟机的IP地址

2.下载zookeeper安装包

执行命令：  
    wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.6/zookeeper-3.4.6.tar.gz

3.解压zookeeper到指定安装目录

$ tar –zxvf zookeeper-3.4.6.tar.gz –C /usr/local/zookeeper3.4.6/zookeeper-3.4.6

4.在安装目录下创建一下文件

$ cd /usr/local/zookeeper3.4.6/zookeeper-3.4.6
    $mkdir data
    $ mkdir logs

5.将/usr/local/zookeeper3.4.6/zookeeper-3.4.6/conf 目录下的 zoo\_sample.cfg 文件拷贝一份，命名为为zoo.cfg

cp zoo_sample.cfg zoo.cfg

6.修改zoo.cfg配置文件

# 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.
    dataDir=/usr/local/zookeeper3.4.6/zookeeper-3.4.6/data
    dataLogDir=/usr/local/zookeeper3.4.6/zookeeper-3.4.6/logs
    # the port at which the clients will connect
    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
    server.1=edu-provider-01:2888:3888
    server.2=edu-provider-01:2889:3889
    server.3=edu-provider-01:2890:3890

7.复制两份zoo.cfg

cp zoo.cfg zoo1.cfg
    cp.zoo.cfg zoo2.cfg

将里面clientPort依次改为2182和2183

dataDir=/usr/local/zookeeper3.4.6/zookeeper-3.4.6/data

zoo1.cfg的data改为data1,zoo2.cfg里的data改为data2  
   8. 在 dataDir=/usr/local/zookeeper3.4.6/zookeeper-3.4.6/data 下创建 myid 文件，编辑 myid 文件

vi myid
    1

9.复制dataDir=/usr/local/zookeeper3.4.6/zookeeper-3.4.6/data 下的data文件夹两份

cp -r /usr/local/zookeeper3.4.6/zookeeper-3.4.6/data /usr/local/zookeeper3.4.6/zookeeper-3.4.6/data1
    cp -r /usr/local/zookeeper3.4.6/zookeeper-3.4.6/data /usr/local/zookeeper3.4.6/zookeeper-3.4.6/data2

10.修改data1和data2中的myid文件,将data1中的值改为2,将data2的值改为3  
   11.关闭防火墙CentOS7中关闭防火墙

$ systemctl disable firewalld.service

至此环境就已经搭建完成了，接下来就是启动测试验证了

进入bin目录下挨个启动

$./zkServer.sh start zoo.cfg 
    $./zkServer.sh start zoo1.cfg
    $./zkServer.sh start zoo2.cfg

![Center][]

查看状态

![Center 1][]

# 小结 #

虽然这些步骤看起来不难，真正在实践过程中才会知道你会遇到什么错误，也能够体会问题解决后的喜悦！

[Center]: /images/20220617/52db62552a384b6d8e67e3864c33420c.png
[Center 1]: /images/20220617/7abcfc137cc9483393d6141fef858fe0.png