VM安装kafka

下载安装
wget https://mirrors.bfsu.edu.cn/apache/kafka/2.5.0/kafka_2.12-2.5.0.tgz

tar zxvf kafka_2.12-2.5.0.tgz

#以下操作在该目录下
cd kafka_2.12-2.5.0

zookeeper需要java环境
yum -y install java-1.8.0

自带的zookeeper
grep “^[#]” config/zookeeper.properties

dataDir=/tmp/zookeeper   #数据存储目录
clientPort=2181   #zookeeper端口
maxClientCnxns=0

集群搭建
1、为每个代理创建一个配置文件
cp config/server.properties config/server-1.properties
cp config/server.properties config/server-2.properties

config/server-1.properties:

    broker.id=1
    listeners=PLAINTEXT://:9093
    log.dir=/tmp/kafka-logs-1

config/server-2.properties:

    broker.id=2
    listeners=PLAINTEXT://:9094
    log.dir=/tmp/kafka-logs-2

2、分别启动：
bin/zookeeper-server-start.sh config/zookeeper.properties &
bin/kafka-server-start.sh config/server-1.properties &
bin/kafka-server-start.sh config/server-2.properties &

注意事项
当server-1.properties中的broker.id与meta.properties中不一致时：
修改meta.properties：
cd kafka_2.12-2.5.0/kafka-logs
vim meta.properties