CentOS下zookeeper集群搭建
系统环境
# cat /etc/redhat-release
CentOS Linux release 7.3.1611 (Core)
机器列表和hosts配置
# cat /etc/hosts
11.0.10.8 prod-ckk-zookeeper-01
11.0.10.9 prod-ckk-zookeeper-02
11.0.10.10 prod-ckk-zookeeper-03
安装JDK
# yum install java-1.8.0-openjdk.x86_64
下载解压zookeeper-3.4.9
# wget -c https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.9/zookeeper-3.4.9.tar.gz
# tar -zxvf zookeeper-3.4.9.tar.gz -C /usr/local/
生成配置文件，及配置文件修改
# cd /usr/local/zookeeper-3.4.9/
# pwd
/usr/local/zookeeper-3.4.9/conf
# cp zoo_sample.cfg zoo.cfg
# grep -v ^# zoo.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataLogDir=/usr/local/zookeeper-3.4.9/logs
dataDir=/usr/local/zookeeper-3.4.9/data
clientPort=2181
server.1=prod-ckk-zookeeper-01:2888:3888
server.2=prod-ckk-zookeeper-02:2888:3888
server.3=prod-ckk-zookeeper-03:2888:3888
建立zookeeper data和logs目录
# mkdir -p /usr/local/zookeeper-3.4.9/{logs,data}
dataDir路径中创建myid文件,三台机器均要执行
# echo "1" > /usr/local/zookeeper-3.4.9/data/myid
# echo "2" > /usr/local/zookeeper-3.4.9/data/myid
# echo "3" > /usr/local/zookeeper-3.4.9/data/myid
启动Zookeeper
# /usr/local/zookeeper-3.4.9/bin/zkServer.sh start
查看集群状态
# /usr/local/zookeeper-3.4.9/bin/zkServer.sh status
如下：
server01：
# /usr/local/zookeeper-3.4.9/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-3.4.9/bin/../conf/zoo.cfg
Mode: follower
server02：
# /usr/local/zookeeper-3.4.9/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-3.4.9/bin/../conf/zoo.cfg
Mode: leader
server03：
# /usr/local/zookeeper-3.4.9/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-3.4.9/bin/../conf/zoo.cfg
Mode: follower
