大数据技术之实时数仓The random password set for the root user at Sun Feb 23 12:01:22 2020 (local time): 8n2FEY8yf4vBMmL
第1章 环境准备1.1虚拟机准备克隆三台虚拟机(hadoop101、hadoop102、hadoop103),配置好对应主机的网络IP、主机名称、关闭防火墙。设置hadoop102、hadoop103、hadoop104的主机对应内存分别是:4G、4G、4G1.2配置免密登录(1)配置ssh免密登录[root@hadoop101 ~]# vim /etc/hosts127.0.0.1 localhost localhost.localdomain localhost4 localhost4