不要下载源码的问下 下载bin的文件 源码有时候会找不到类
apache-zookeeper-3.6.0-bin.tar.gz
1.1 集群规划在linux1,linux2和linux3三个节点上部署Zookeeper，三个节点都已安装jdk。
配置好ssh key免密登录
1.首先配置hosts文件
vim /etc/hosts
192.168.10.11 linux1 192.168.10.12 linux2 192.168.10.13 linux3
2.生成ssh rsa
第一台机器
[Hadoop@linux1 conf]$ ssh-keygen -t rsa
[hadoop@linux1 conf]$ ssh-copy-id linux2
[hadoop@linux1 conf]$ ssh-copy-id linux3
第二台机器
[hadoop@linux2 conf]$ ssh-keygen -t rsa
[hadoop@linux2 conf]$ ssh-copy-id linux1
[hadoop@linux2 conf]$ ssh-copy-id linux3
第三台机器
[hadoop@linux3 conf]$ ssh-keygen -t rsa
[hadoop@linux3 conf]$ ssh-copy-id linux1
[hadoop@linux3 conf]$ ssh-copy-id linux2
1.2 解压安装
tar -zxvf apache-zookeeper-3.6.0-bin.tar.gz -C /opt/module/<br>mv /opt/module/apache-zookeeper-3.6.0-bin /opt/module/apache-zookeeper-3.6.0
在/opt/module/apache-zookeeper-3.6.0/这个目录下创建Data
[hadoop@linux1 apache-zookeeper-3.6.0]$ mkdir Data
修改文件名称
mv zoo_sample.cfg zoo.cfg
1.3 配置zoo.cfg文件具体配置，修改dateDir,添加日志存放目录
ataDir=/opt/module/apache-zookeeper-3.6.0/Data
dataLogDir=/opt/module/apache-zookeeper-3.6.0/Data/logs
在末尾增加
server.1=linux1:2888:3888 server.2=linux2:2888:3888 server.3=linux3:2888:3888
1.4 集群配置（1）在/opt/module/apache-zookeeper-3.6.0/Data目录下创建一个myid的文件
[hadoop@linux1 Data]$ touch myid
（2）编辑myid文件， 在文件中添加与server对应的编号：如 1
[hadoop@linux1 Data]$ vi myid
wq保存退出
[hadoop@linux1 module]$ scp -r apache-zookeeper-3.6.0/ hadoop@linux2:/opt/module/ [hadoop@linux1 module]$ scp -r apache-zookeeper-3.6.0/ hadoop@linux3:/opt/module/
分别设置linux1和linux2的myid文件
[hadoop@linux1 module]$ ssh linux2 Last login: Tue Mar 24 11:32:24 2020 from linux1 [hadoop@linux2 ~]$ echo 2 > /opt/module/apache-zookeeper-3.6.0/Data/myid [hadoop@linux2 ~]$ cat /opt/module/apache-zookeeper-3.6.0/Data/myid 2 [hadoop@linux2 ~]$ exit logout Connection to linux2 closed. [hadoop@linux1 module]$
[hadoop@linux1 module]$ ssh linux3 Last login: Mon Mar 23 14:15:50 2020 [hadoop@linux3 ~]$ echo 3 > /opt/module/apache-zookeeper-3.6.0/Data/myid [hadoop@linux3 ~]$ cat /opt/module/apache-zookeeper-3.6.0/Data/myid 3 [hadoop@linux3 ~]$ exit logout Connection to linux3 closed. [hadoop@linux1 module]$ 1.5 启动集群
[hadoop@linux1 apache-zookeeper-3.6.0]$ ./bin/zkServer.sh start ZooKeeper JMX enabled by default Using config: /opt/module/apache-zookeeper-3.6.0/bin/../conf/zoo.cfg Starting zookeeper ... STARTED [hadoop@linux1 apache-zookeeper-3.6.0]$ ssh linux2 Last login: Tue Mar 24 11:33:58 2020 from linux1 [hadoop@linux2 ~]$ /opt/module/apache-zookeeper-3.6.0/bin/zkServer.sh start ZooKeeper JMX enabled by default Using config: /opt/module/apache-zookeeper-3.6.0/bin/../conf/zoo.cfg Starting zookeeper ... STARTED [hadoop@linux2 ~]$ exit logout Connection to linux2 closed. [hadoop@linux1 apache-zookeeper-3.6.0]$ ssh linux 2 ssh: Could not resolve hostname linux: Name or service not known [hadoop@linux1 apache-zookeeper-3.6.0]$ ssh linux3 Last login: Tue Mar 24 11:35:38 2020 from linux1 [hadoop@linux3 ~]$ /opt/module/apache-zookeeper-3.6.0/bin/zkServer.sh start ZooKeeper JMX enabled by default Using config: /opt/module/apache-zookeeper-3.6.0/bin/../conf/zoo.cfg Starting zookeeper ... STARTED [hadoop@linux3 ~]$ exit logout Connection to linux3 closed. [hadoop@linux1 apache-zookeeper-3.6.0]$
1.6 配置环境变量vi /etc/profile
export ZOOKEEPER_HOME=/opt/module/apache-zookeeper-3.6.0 export PATH=$PATH:$ZOOKEEPER_HOME/bin
source /etc/profile
1.7zoo.cfg配置参数解读Server.A=B:C:D。
A是一个数字，表示这个是第几号服务器；
B是这个服务器的ip地址；
C是这个服务器与集群中的Leader服务器交换信息的端口；
D是万一集群中的Leader服务器挂了，需要一个端口来重新进行选举，选出一个新的Leader，而这个端口就是用来执行选举时服务器相互通信的端口。