Kafka架构

producer: 生产者
consumer: 消费者
broker: 类似容器,存放数据
topic: 类似标签

1.创建文件夹

mkdir -p /usr/local/kafka/data  /usr/local/kafka/logs /usr/local/kafka/logs1 /usr/local/kafka/logs2 /usr/local/kafka/logs3
cd /usr/local/kafka

2.下载Flume http://kafka.apache.org/downloads

wget http://apache.mirror.iphh.net/kafka/2.5.0/kafka_2.13-2.5.0.tgz

3.解压

tar -zvxf kafka_2.13-2.5.0.tgz

4.修改配置文件

vim /etc/profile
export KAFKA_HOME=/usr/local/kafka/kafka_2.13-2.5.0
export PATH=$KAFKA_HOME/bin:$PATH

source /etc/profile

5.修改配置

cd /usr/local/kafka/kafka_2.13-2.5.0/config
cp server.properties server1.properties
cp server.properties server2.properties
cp server.properties server3.properties
vim server.properties
broker.id=0   # broker id 这个不能重复  1, 2, 3 往上设置
listeners=PLAINTEXT://:9092   # 取消注释  默认端口是9092   修改三个配置文件 端口不能重复9092 9093 9094 9095
host.name=0.0.0.0   # ip
log.dirs=/usr/local/kafka/logs  # log文件放置路径   修改三个配置文件 路径不能重复 上次建了三个文件路径分布配置这三个文件路径
zookeeper.connect=localhost:2181   # zookeeper连接信息

6.启动kafka

kafka-server-start.sh -daemon $KAFKA_HOME/config/server.properties &
kafka-server-start.sh -daemon $KAFKA_HOME/config/server1.properties &
kafka-server-start.sh -daemon $KAFKA_HOME/config/server2.properties &
kafka-server-start.sh -daemon $KAFKA_HOME/config/server3.properties &
-daemon: 后台启动
config/server.properties: server.properties文件路径
kafka-server-stop.sh  # 关闭kafka

jps  查看进程  jps -m: 查看比较详细的信息
kafka

启动报错: kafka.common.InconsistentClusterIdException: The Cluster ID BmhgroWiQEWltKkCY_4u4Q doesn't match stored clusterId Some(3BVX0S4nTjSvbCvqUU3WGQ) in meta.properties. The broker is trying to join the wrong cluster. Configured zookeeper.connect may be wrong.
    在Kafka config目录中,打开kafka config属性文件,让server.properties查找具有参数log.dirs =的日志路径目录,然后转到日志路径目录并在其中找到文件meta.properties。打开文件meta.properties并更新cluster.id =或从日志路径目录中删除此文件或所有日志文件,然后重新启动kafka。(这个方法并没有解决我的问题)

cd /usr/local/kafka/kafka_2.13-2.5.0/logs
cat server.log | tail -n 200  # 查看kafka启动时产生日志