CentOS 7/8 部署Kafka集群

首先要安装JDK及zookeeper，参考 https://www.cnblogs.com/dotqin/p/13560419.html 及 https://www.cnblogs.com/dotqin/p/13560764.html

环境说明：三台百度云服务器，内网IP分别为: 192.168.32.36、192.168.32.37、192.168.32.38, 不开放公网IP访问

分别在三台服务器上执行以下操作：

1.创建目录及下载解压（下载速度很慢）

mkdir /usr/local/kafka
cd /usr/local/kafka/
wget https://archive.apache.org/dist/kafka/1.0.0/kafka_2.11-1.0.0.tgz
tar -zxvf kafka_2.11-1.0.0.tgz

2.编辑配置文件(三台不一样)

vim /usr/local/kafka/kafka_2.11-1.0.0/config/server.properties
# 修改或替换以下内容
broker.id=0 # 三台服务器分别对应 0 1 2
listeners=PLAINTEXT://192.168.32.36:9092 # 分别对应服务器的内网IP
advertised.listeners=PLAINTEXT://192.168.32.36:9092 # 分别对应服务器的内网IP （这个设置是有关公网访问的，这里不开放公网请求）
# 以下配置三台一样
log.dirs=/tmp/kafka-logs
zookeeper.connect=192.168.32.36:2181,192.168.32.37:2181,192.168.32.38:2181/kafka
zookeeper.connection.timeout.ms=6000

3.添加到服务管理

vim /usr/lib/systemd/system/kafka.service
# 添加以下内容
[Unit]
Description=kafka_2.11-1.0.0 service
After=syslog.target network.target zookeeper.service

[Service]
Restart=always
RestartSec=1
Type=forking
TimeoutSec=120

User=root
Environment=JAVA_HOME=/usr/local/java/jdk1.8.0_261

ExecStart=/usr/local/kafka/kafka_2.11-1.0.0/bin/kafka-server-start.sh -daemon /usr/local/kafka/kafka_2.11-1.0.0/config/server.properties
ExecStop=/usr/local/kafka/kafka_2.11-1.0.0/bin/kafka-server-stop.sh /usr/local/kafka/kafka_2.11-1.0.0/config/server.properties

[Install]
WantedBy=multi-user.target

4.设置服务生效及开机自启动

systemctl daemon-reload
systemctl enable kafka.service

5.启动kafka

systemctl start kafka
systemctl status kafka