1. 下载ZooKeeper

• 浏览器打开ZooKeeper的下载页：zookeeper.apache.org/releases.ht…
  
• 点击最新版的下载链接【Apache ZooKeeper 3.7.0】
  
• 点击页面的中下载链接，开始下载

2. 安装ZooKeeper

• 将下载好的压缩包上传到CentOS的/tmp目录

cd /tmp
tar -zxvf /tmp/apache-zookeeper-3.7.0-bin.tar.gz
mv apache-zookeeper-3.7.0-bin /usr/local
cd /usr/local/apache-zookeeper-3.7.0-bin/conf
cp zoo_sample.cfg zoo.cfg
cd /usr/local/apache-zookeeper-3.7.0-bin/bin
./zkServer.sh start