实验1 Hadoop伪分布式部署

Hadoop伪分布式部署（以CentOS为例）1、防火墙关闭Hadoop伪分布式部署有的版本服务为：iptables查看防火墙状态：systemctl status firewalld 关闭防火墙：systemctl stop firewalld禁止防火墙开机自启：systemctl disable firewalld.service查看防火墙状态：systemctl status fire...