centos6.5 单点kafka测试

一,kafka解压到/usr/local/下后,修改配置文件

vim config/zookeeper.properties

修改如下几行:

dataDir=/usr/local/zookeeper/zkdata

dataLogDir=/usr/local/zookeeper/logs

# the port at which the clients will connect

clientPort=2181

创建zookeeper数据目录,日志目录

mkdir -p /usr/local/zookeeper/logs

修改kafka配置文件:

vim config/server.properties

#修改以下几行:

broker.id=0

listeners=PLAINTEXT://0.0.0.0:9092

advertised.listeners=PLAINTEXT://0.0.0.0:9092

num.network.threads=3

num.io.threads=8

socket.send.buffer.bytes=102400

socket.receive.buffer.bytes=102400

socket.request.max.bytes=104857600

log.dirs=/tmp/kafka-logs

num.partitions=1

num.recovery.threads.per.data.dir=1

log.retention.hours=168

log.segment.bytes=1073741824

log.retention.check.interval.ms=300000

zookeeper.connect=localhost:2181

zookeeper.connection.timeout.ms=6000

二,编辑启动脚本

1,zk启动脚本

cat /etc/init.d/zookeeper

#!/bin/bash

export JAVA_HOME=/data/jdk

export PATH=$JAVA_HOME/bin:$PATH

#chkconfig:2345 20 90

#description:zookeeper

#processname:zookeeper

case $1 in

          start)

              /usr/local/kafka/bin/zookeeper-server-start.sh -daemon /usr/local/kafka/config/zookeeper.properties

              ;;

          *)

              echo "require start|stop|status|restart"

              ;;

esac

2,kafka启动脚本

cat /etc/init.d/kafka

#!/bin/bash

export JAVA_HOME=/data/jdk

export PATH=$JAVA_HOME/bin:$PATH

case $1 in

          start)

              /usr/local/kafka/bin/kafka-server-start.sh -daemon /usr/local/kafka/config/server.properties

              ;;

          *)

              echo "require start|stop|status|restart"

              ;;

esac

3,如果要加入到开机自启动中,可在rc.local中添加

/etc/init.d/zookeeper start

/etc/init.d/kafka start

请注意启动顺序,先启动zk,后启动kafka。

三,kafka消息测试

1,创建topic

查看命令的帮助信息:直接输入bin/kafka-topics.sh,而后enter,即可以查看所有的参数信息

bin/kafka-topics.sh --create --zookeeper 192.168.20.20:2181 --replication-factor 1 --partitions 1 --topic summer

注释:参数说明

  • replication-factor:设置副本数
  • partitions:设置分区数

2,查看当前所有的topic列表

bin/kafka-topics.sh --list --zookeeper 192.168.20.20:2181

3,查看topic的介绍信息

bin/kafka-topics.sh --describe --zookeeper 192.168.20.20:2181

  查看指定topic:

  bin/kafka-topics.sh --describe --zookeeper 192.168.20.20:2181 --topic summer

4,发送消息

bin/kafka-console-producer.sh --broker-list 192.168.20.20:9092 --topic summer

5,消费消息

bin/kafka-console-consumer.sh --zookeeper 192.168.20.20:2181 --topic summer --from-beginning

此方法会有警告信息,表示已废弃的用法,建议使用新的用法【bootstrap-server】

bin/kafka-console-consumer.sh --bootstrap-server 192.168.20.20:9092 --topic summer

 

  • --from-beginning参数的作用:重新开始消费消息,不论能否已经被消费了