Kafka

https://kafka.apache.org/

https://www.bilibili.com/video/BV1Xy4y1G7zA

一、为什么使用消息队列

二、消息队列的流派

三、Kafka的基本知识

四、Kafka 中主题和分区的概念

集群

准备3个 server.properties 文件

[root@localhost ~]# cd /usr/local/kafka/kafka_2.11-2.4.0/config/
[root@localhost config]# cp server.properties server1.properties 
[root@localhost config]# cp server.properties server2.properties

• server.properties

broker.id=0
listeners=PLAINTEXT://192.168.137.200:9092
log.dirs=/usr/local/kafka/data/kafka-logs

• server1.properties

broker.id=1
listeners=PLAINTEXT://192.168.137.200:9093
log.dirs=/usr/local/kafka/data/kafka-logs-1

• server2.properties

broker.id=2
listeners=PLAINTEXT://192.168.137.200:9094
log.dirs=/usr/local/kafka/data/kafka-logs-2