MAC OS系统下kafka的安装
安装zookeeper：
brew install kafka
程序安装目录(安装过程将依赖安装 zookeeper)：
/usr/local/Cellar/zookeeper /usr/local/Cellar/kafka
默认配置文件地址：
/usr/local/etc/kafka/zookeeper.properties
/usr/local/etc/kafka/server.properties
主要配置：
broker.id=0 num.network.threads=3 num.io.threads=8 socket.receive.buffer.bytes=102400 socket.request.max.bytes=104857600 log.dirs=/usr/local/var/lib/kafka-logs num.partitions=1 num.recovery.threads.per.data.dir=1 offsets.topic.replication.factor=1 transaction.state.log.replication.factor=1 transaction.state.log.min.isr=1 log.retention.hours=168 log.segment.bytes=1073741824 log.retention.check.interval.ms=300000 zookeeper.connect=localhost:2181 zookeeper.connection.timeout.ms=6000 group.initial.rebalance.delay.ms=0
通过brew services插件启动：
brew services start zookeeper brew services start kafka
或者直接启动：
zookeeper-server-start /usr/local/etc/kafka/zookeeper.properties kafka-server-start /usr/local/etc/kafka/server.properties
创建topic：
kafka-topics --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test
查看创建的topic：
kafka-topics --list --zookeeper localhost:2181
发送一些消息：
kafka-console-producer --broker-list localhost:9092 --topic test
消费消息：
kafka-console-consumer --bootstrap-server localhost:9092 --topic test --from-beginning
关闭：
brew services stop kafka
或者这样关闭：
kafka-server-stop