hdp 2.6.4 扩容增加数据节点

标签（空格分隔）： 大数据平台构建

---

• 一： 新增节点的数据系统初始
• 二： 增加数据节点的步骤

---

一：新增节点的数据系统初始

1.1 系统主机名：

系统：RHEL7.5x64
cat /etc/hosts

172.17.100.21	ZY-001.flyfish
172.17.100.22	ZY-002.flyfish
172.17.100.23	ZY-003.flyfish
172.17.100.24	ZY-004.flyfish

ZY-004.flyfish 作为增加节点

1.2 新增节点关闭防火墙与selinux

yum install -y firewall* iptable* 

  (1) 关闭firewalld

 systemctl stop firewalld.service
 systemctl disable firewalld.service
 firewall-cmd --state

 (2) 关闭iptables 
 iptables -F
 systemctl stop iptables.service 
 service iptables save
 systemctl disable iptables.service 

 (3) 禁用 selinux 

  sed -i '/SELINUX/s/enforcing/disabled/' /etc/selinux/config  
  setenforce 0
  getenforce 0
  sestatus

  重启机器

  reboot

1.3 无密钥登录

做root用户无密钥认证

 ssh-keygen ---一直敲回车到最后

 cat id_rsa.pub >> authorized_keys 

 将所有的公钥导入authorized_keys  分发到 所有的 机器的.ssh/ 下面

 然后测试
 
 ---
 
 ssh zy-004.flyfish
 

1.4 ZY-004.flyfish时间同步 ZY-001.flyfish

login:

   ZY-002.flyfish

scp /etc/chrony.conf ZY-004.flyfish:/etc/

login:
  ZY-004.flyfish
  
  service chronyd stop 
  service chronyd start
  chkconfig chronyd on 
  
  chronyc sources -v 

1.5 句柄数更改

login:  

ZY-001.flyfish

scp /etc/security/limits.conf zy-004.flyfish:/etc/security/

1.6 同步yum源

cd /etc/yum.repos.d/
scp ambari.repo hdp.gpl.repo hdp.repo ZY-004.flyfish:/etc/yum.repos.d/

login: 

ZY-004.flyfish

mount /dev/cdrom /media/
yum makecache

1.7 安装 jdk

login:

ZY-001.flyfish

scp jdk-8u162-linux-x64.tar.gz ZY-004.flyfish:/root

scp /etc/profile ZY-004.flyfish:/etc/

login:

ZY-004.flyfish

tar -zxvf jdk-8u162-linux-x64.tar.gz -C /training/

cd /training 

ln -s jdk1.8.0_162/ jdk

source /etc/profile 

java -version 

1.8 : 关于补丁包

libtirpc-0.2.4-0.10.el7.x86_64.rpm  
libtirpc-devel-0.2.4-0.10.el7.x86_64.rpm
---
scp libtirpc-* ZY-004.flyfish:/root

login 
ZY-004.flyfish

rpm -ivh libtirpc-* 

二： 增加数据节点的步骤