部署ZooKeeper

准备三台服务器同步时间配置hosts并配置好jdk（部署系统为：CentOS-7-x86_64-Minimal-1810）

#配置/etc/hosts
192.168.0.151 node1
192.168.0.152 node2
192.168.0.153 node3
 
#关闭防火墙
[root@node1 scorpion]# systemctl stop firewalld
[root@node1 scorpion]# systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.

 

下载ZooKeeper二进制部署包上传到node1的/home/scorpion

 https://archive.apache.org/dist/zookeeper/zookeeper-3.5.7/apache-zookeeper-3.5.7-bin.tar.gz

 

解压重命名

mkdir -p /home/scorpion && cd /home/scorpion
tar -xzvf apache-zookeeper-3.5.7-bin.tar.gz
mv apache-zookeeper-3.5.7-bin zookeeper
rm -rf apache-zookeeper-3.5.7-bin.tar.gz

 

修改配置

mkdir -p /home/scorpion/zookeeper/data
 
cd zookeeper/conf && \cp zoo_sample.cfg zoo.cfg
 
vi zoo.cfg
#数据存储目录
dataDir=/home/scorpion/zookeeper/data
 
#配置集群信息
server.1=node1:2888:3888
server.2=node2:2888:3888
server.3=node3:2888:3888

 

在dataDir目录中标记服务id（该id值对应上述server.x中的x值）,每台机器的myid值不一样，第一台为1，第二台为2，第三台为3

cat > /home/scorpion/zookeeper/data/myid <<'EOF'
1
EOF

 

登陆node2、node3执行

mkdir -p /home/scorpion && cd /home/scorpion
scp -r root@node1:/home/scorpion/zookeeper ./

 

修改node2、node3中myid值

#修改node2节点myid中的内容为2
#修改node3节点myid中的内容为3
vi /home/scorpion/zookeeper/data/myid

 

配置环境变量（所有节点执行）

vi ~/.bash_profile
 
#ZOOKEEPER_HOME
export ZOOKEEPER_HOME=/home/scorpion/zookeeper
export PATH=$PATH:${ZOOKEEPER_HOME}/bin

 

让配置生效（所有节点执行）

source ~/.bash_profile

 

启动（所有节点执行）

[root@node1 scorpion]# zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /home/scorpion/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED

 

查看zk状态（任意节点执行）

[root@node1 scorpion]# zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /home/scorpion/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower