在Ubuntu上搭建Zookeeper集群需要以下几个步骤:
安装Java环境:
sudo apt update
sudo apt install openjdk-8-jdk
java -version
下载并解压Zookeeper:
wget https://downloads.apache.org/zookeeper/zookeeper-3.7.0/apache-zookeeper-3.7.0-bin.tar.gz
/opt
:tar -zxvf apache-zookeeper-3.7.0-bin.tar.gz -C /opt
创建数据目录和日志目录:
mkdir -p /data/zookeeper/data
mkdir -p /data/zookeeper/logs
配置zoo.cfg
文件:
/opt/zookeeper/conf
。zoo_sample.cfg
文件并重命名为zoo.cfg
:cp zoo_sample.cfg zoo.cfg
zoo.cfg
文件:nano zoo.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/data/zookeeper/data
dataLogDir=/data/zookeeper/logs
clientPort=2181
server.1=node1:2888:3888
server.2=node2:2888:3888
server.3=node3:2888:3888
创建myid
文件:
dataDir
目录下创建myid
文件,内容为对应的服务器ID:echo "1" > /data/zookeeper/data/myid
启动Zookeeper服务:
/opt/zookeeper/bin/zkServer.sh start
验证集群状态:
/opt/zookeeper/bin/zkServer.sh status
tickTime
:心跳发送的间隔时间,用于判定Client是否断开(默认2000ms)。dataDir
:Zookeeper数据文件保存目录。clientPort
:Zookeeper客户端的连接端口(默认是2181)。initLimit
:初始化Client时的重试次数(默认5次)。syncLimit
:初始化Client时的重试次数(默认5次)。server.X
:集群服务器列表,X为服务器ID。创建systemd服务文件:
/etc/systemd/system/zookeeper.service
文件:sudo nano /etc/systemd/system/zookeeper.service
[Unit]
Description=Apache Zookeeper
After=network.target
[Service]
User=zookeeper
Group=zookeeper
ExecStart=/opt/zookeeper/bin/zkServer.sh start
ExecStop=/opt/zookeeper/bin/zkServer.sh stop
Restart=always
[Install]
WantedBy=multi-user.target
启用并启动服务:
sudo systemctl daemon-reload
sudo systemctl enable zookeeper
sudo systemctl start zookeeper
通过以上步骤,你可以在Ubuntu上成功搭建一个Zookeeper集群。如果在配置过程中遇到问题,建议参考Zookeeper的官方文档或寻求相关技术支持。