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zookeeper初体验

zookeeper初体验

根据 zookeeper 官网部署操作,准备了三台 vmware 虚机,做一个集群环境

三台 vmware 虚机地址

192.168.174.111 
192.168.174.112
192.168.174.113

下载安装

官网地址:https://zookeeper.apache.org/ 
下载地址:https://zookeeper.apache.org/releases.html
Apache ZooKeeper 3.8.0
Apache ZooKeeper 3.8.0(asc, sha512)
Apache ZooKeeper 3.8.0 Source Release(asc, sha512)
​
点击:Apache ZooKeeper 3.8.0 Source Release ,选择下载 https://dlcdn.apache.org/zookeeper/zookeeper-3.8.0/apache-zookeeper-3.8.0.tar.gz 版本
​
上传地址:
/root/tools
​
解压:
tar -tar -zxvf zookeeper-3.8.0.tar.gz -C ~/training/
​
设置环境变量:
ZOOKEEPER_HOME=/root/training/zookeeper-3.8.0
export ZOOKEEPER_HOME
​
PATH=$ZOOKEEPER_HOME/bin:$PATH
export PATH
        
配置文件: conf/zoo.cfg
dataDir=/root/training/zookeeper-3.8.0/zkData
​
建立数据目录:
mkdir /root/training/zookeeper-3.8.0/zkData
​
启动:
zkServer.sh start

错误处理

3.5版本之后不自动生成jar包,启动或报错,缺失quotanum main类

Error: Could not find or load main class org.apache.zookeeper.server.quorum.QuorumPeerMain
​
-------- 下载 -bin.xxx 带编译版本的 ---------
下载地址:https://zookeeper.apache.org/releases.html
Apache ZooKeeper 3.8.0
选择下载:https://downloads.apache.org/zookeeper/zookeeper-3.8.0/apache-zookeeper-3.8.0-bin.tar.gz
 
 按照上面的安装步骤重新配置一遍

集群配置参数

三台虚机都要配置
--- conf/zoo.cfg
server.1=bigdata111:2888:3888
server.2=bigdata112:2888:3888
server.3=bigdata113:2888:3888
​
--- /etc/hosts 使用别名处理
192.168.174.111 bigdata111
192.168.174.112 bigdata112
192.168.174.113 bigdata113

关闭防火墙

systemctl status firewalld.service   ---> 查看防火墙状态
systemctl stop firewalld.service     ---> 如果重启,会重启防火墙
systemctl disable firewalld.service  ---> 永久关闭防火墙

测试

三台启动:
zkServer.sh start
查看状态:
zkServer.sh status
---- 正常启动的状态 -----
[root@bigdata111 ~]# zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /root/training/apache-zookeeper-3.8.0-bin/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: follower
​
启动客户端:
zkCli.sh 
--- 正常启动后查询 ----
[zk: localhost:2181(CONNECTED) 0] ls /
[zookeeper]
​
到此可以愉快的玩耍了!!!
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