centos7下kafka集群搭建

概述

集群安装或者单机安装都可以，这里介绍集群安装。Kafka本身安装包也自带了zookeeper，也可以使用其自带的zookeeper。建议试用自己安装的zookeeper，本教程试用单独安装的zookeeper。

安装环境

3台centos7虚拟机：10.15.21.62 10.10.182.168 10.10.182.169
kafka_2.10-0.10.2.0
zookeeper-3.4.9
jdk-1.8.0(安装不做赘述)

环境初始化

定义目录结构。

mkdir /opt/zookeeper
mkdir /opt/zkdata
mkdir /opt/zkdatalog
mkdir /opt/kafka

下载软件

cd /opt/zookeeper
wget https://mirrors.cnnic.cn/apache/zookeeper/zookeeper-3.4.9/zookeeper-3.4.9.tar.gz
cd /opt/kafka/
wget http://mirror.bit.edu.cn/apache/kafka/0.10.2.0/kafka_2.10-0.10.2.0.tgz

Zookeeper集群搭建

1. 修改配置文件

    cd /opt/zookeeper/
    tar –xvf  zookeeper-3.4.9.tar.gz
    cd zookeeper-3.4.9/conf
    cp zoo_sample.cfg zoo.cfg
    vi zoo.cfg

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/opt/zookeeper/zkdata
dataLogDir=/opt/zookeeper/zkdatalog
# the port at which the clients will connect
clientPort=2181
server.1=zk1:2888:3888
server.2=zk2:2888:3888
server.3=zk3:2888:3888
# the maximum number of client connections.
# increase this if you need to handle more clients

server.1 这个1是服务器的标识也可以是其他的数字， 表示这个是第几号服务器，用来标识服务器，这个标识后