随便一台节点运行生成随机uuid，后面每台节点都要使用此uuid

bin/kafka-storage.sh random-uuid 生成的uuid（IyyjPwZcTa2LHKkV1rj5pg）

每个节点需要在config/server.properties中配置相关内容

node.id

controller.quorum.voters=1@192.168.10.10:9093,2@192.168.10.20:9093,3@192.168.10.30:9093

log.dirs=/opt/kafka/log/kraft-combined-logs

num.partitions=16

每台节点设置日志目录的格式，$KAFKA_CLUSTER_ID应为上面生成的值，每个节点都要用相同的uuid

bin/kafka-storage.sh format -t IyyjPwZcTa2LHKkV1rj5pg -c config/server.properties

启动 Kafka 服务，每台节点都执行

bin/kafka-server-start.sh -daemon /opt/kafka/config/server.properties

测试kafka集群

创建主题名为cluster-topic存储事件

bin/kafka-topics.sh --bootstrap-server 192.168.10.10:9092 --create --topic cluster-topic1 --partitions 3 --replication-factor 3

在其他节点(9092)查询该topic

bin/kafka-topics.sh --describe --topic cluster-topic1 --bootstrap-server 192.168.10.20:9092

将事件写入主题

bin/kafka-console-producer.sh --topic cluster-topic1 --bootstrap-server 192.168.10.10:9092

This is my first event

This is my second event

读取事件

bin/kafka-console-consumer.sh --topic cluster-topic --from-beginning --bootstrap-server 192.168.10.10:9092

删除主题

bin/kafka-topics.sh --bootstrap-server 192.168.10.10:9092 --delete --topic cluster-topic

配置systemd服务

先关闭kafka服务

/opt/kafka/bin/kafka-server-stop.sh config/server.properties

配置服务

bash 复制代码

cat >>/etc/systemd/system/kafka.service << EOF

[Unit]

Description=Apache Kafka Service (KRaft Mode)

After=network.target



[Service]

Type=simple

User=root

Group=root

ExecStart=/opt/kafka/bin/kafka-server-start.sh /opt/kafka/config/server.properties

ExecStop=/opt/kafka/bin/kafka-server-stop.sh

Restart=on-abnormal

WorkingDirectory=/opt/kafka

Environment="JAVA_HOME=/usr/local/jdk-17.0.12"



[Install]

WantedBy=multi-user.target

EOF



systemctl daemon-reload

systemctl start kafka

systemctl status kafka

kafka4.0集群部署