linux搭建zookeeper的过程记录

初学zookeeper，搭建过程记录下来，以便自己以后方便查看。

准备三台虚拟机
192.168.192.128
192.168.192.129
192.168.192.130

首先三台都安装好java环境，我选择的的1.8.0_151的版本 详情安装过程点击查看

准备好zookeeper的安装包

解压到你准备的目录 比如 /usr/local

tar -zxvf zookeeper-3.4.9.tar.gz -C /usr/local

编辑配置文件

cd /usr/local/zookeeper-3.4.9/conf
cp zoo_sample.cfg zoo.cfg
vim zoo.cfg

#修改为下面的样子 注意结合自己的ip
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/data/zookeeper
dataLogDir=/data/zookeeper/logs
clientPort=2181
server.1=192.168.192.128:2888:3888
server.2=192.168.192.130:2888:3888
server.3=192.168.192.129:2888:3888

创建文件夹

mkdir -pv /data/zookeeper

创建myid文件

echo "1" > 	/data/zookeeper/myid  
#注意 三台机器的myid和自己的zoo.fcg里的server.x 对应上 而且不能重复

启动zookeeper

cd /usr/local/zookeeper-3.4.9/bin
./zkServer.sh start

[root@zk1]netstat -antp | grep -E "2181|2888|3888"
tcp6       0      0 :::2181                 :::*                    LISTEN      1262/java           
tcp6       0      0 192.168.192.130:3888    :::*                    LISTEN      1262/java           
tcp6       0      0 192.168.192.130:3888    192.168.192.129:47800   ESTABLISHED 1262/java 

[root@zk2]# netstat -antp | grep -E "2181|2888|3888"
tcp6       0      0 192.168.192.128:3888    :::*                    LISTEN      1235/java           
tcp6       0      0 :::2181                 :::*                    LISTEN      1235/java

[root@zk3]# netstat -antp | grep -E "2181|2888|3888"
tcp6       0      0 192.168.192.128:3888    :::*                    LISTEN      1234/java           
tcp6       0      0 :::2181                 :::*                    LISTEN      1234/java

拥有两个3888端口为leader 目前zk1为leader

[root@localhost zk2]cd  /usr/local/zookeeper-3.4.9/bin
[root@localhost zk2 bin]# ./zkCli.sh  -server 192.168.192.128:2181
Connecting to 192.168.192.128:2181
......
......
......
[zk: 192.168.192.128:2181(CONNECTED) 0]
[zk: 192.168.192.128:2181(CONNECTED) 0] quit
Quitting...
2021-11-11 14:05:51,444 [myid:] - INFO  [main:ZooKeeper@684] - Session: 0x17d09668e000001 closed
2021-11-11 14:05:51,446 [myid:] - INFO  [main-EventThread:ClientCnxn$EventThread@519] - EventThread shut down for session: 0x17d09668e000001
[root@zk2]# 

如果telnet测试连接出现问题，检测是否关闭防火墙和selinux