Ambari 2.7.1.0進行Hadoop 3.0.1集羣搭建

工做須要，大數據相關組件又得從新搭建，整理了一下。

序號	主機名	IP	程序	CPU	內存	磁盤	操做系統
1	ambari.dev.smcaiot.com	172.16.4.74	Ambari	4C	24GB	200GB	CentOS Linux release 7.4.1708 (Core)
2	master.dev.smcaiot.com	172.16.4.74	Master	4C	24GB	200GB	CentOS Linux release 7.4.1708 (Core)
3	node01.dev.smcaiot.com	172.16.4.75	node01	4C	24GB	200GB	CentOS Linux release 7.4.1708 (Core)
4	node02.dev.smcaiot.com	172.16.4.76	node02	4C	24GB	200GB	CentOS Linux release 7.4.1708 (Core)

hostnamectl set-hostname master.dev.smcaiot.com

cat > /etc/sysconfig/network <<EOF
NETWORKING=yes
HOSTNAME=master.dev.smcaiot.com
EOF

cat > /etc/resolv.conf <<EOF
nameserver 223.5.5.5
EOF

cat > /etc/hosts <<EOF
172.16.4.74 master.dev.smcaiot.com
172.16.4.74 ambari.dev.smcaiot.com
172.16.4.75 node01.dev.smcaiot.com
172.16.4.76 node02.dev.smcaiot.com
EOF

systemctl status firewalld.service
systemctl disable firewalld.service

sed -i "s#SELINUX=enforcing#SELINUX=disabled#g" /etc/selinux/config
setenforce 0

yum install openssl -y

yum install ntp ntpdate  -y 

systemctl start ntpd
systemctl enable ntpd