Hadoop--1.环境准备

Posted 2020-08-09

1.内存要求大于2G

低于2G在分析数据是会卡屏。

2.修改主机名：master、slave

3.配置hostname

所有的机器都要配置hosts

192.168.0.2 master

192.168.0.3 slave

.....

4.关闭selinux

[[email protected] ~]# vim /etc/selinux/config

修改以下内容：

SELINUX=Enforcing    改为：SELINUX=disabled

[[email protected] ~]# getenforce 0

5.关闭iptables（6.x）

[[email protected] ~]# service iptables stop

或

[[email protected] ~]# iptables -F

[[email protected] ~]# service iptables save

6.关闭firewalld

lsystemctl disable firewalld

lsystemctl stop firewalld

lyum install -y iptables-services

lsystemctl enable iptables

lsystemctl start iptables

lservice iptables save

本文出自 “Scorpions丶毒” 博客，请务必保留此出处http://scorpions.blog.51cto.com/7138036/1853621