部署Ambari Server实战案例

　　　　　　　　部署Ambari Server实战案例

　　　　　　　　　　　　　　　　　　　　　　　　　　　　作者：尹正杰

一.准备三台虚拟机(需要自行安装jdk环境)

1>.角色分配

　　NameNode节点:
　　　　hdp101.yinzhengjie.org.cn

　　DataNode节点:
　　　　hdp101.yinzhengjie.org.cn
　　　　hdp102.yinzhengjie.org.cn
　　　　hdp103.yinzhengjie.org.cn

　　MySQL服务器:
　　　　hdp101.yinzhengjie.org.cn
　　　　
　　YUM源仓库服务器:
　　　　hdp101.yinzhengjie.org.cn

2>.内存分配(根据物理机情况合理分配即可)

hdp101.yinzhengjie.org.cn:
    10G-16G，推荐12G

hdp102.yinzhengjie.org.cn:
    3G-6G,推荐6G

hdp103.yinzhengjie.org.cn:
    3G-6G,推荐6G

二.配置SSH免密码登录

1>.生成秘钥并配置与本机的免密登录

[root@hdp101.yinzhengjie.org.cn ~]# ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
Generating public/private rsa key pair.
Created directory '/root/.ssh'.
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:1q/IHVpogVivEj03C8ef3kUpJuDsGgaPT+PU5m8aycY root@hdp101.yinzhengjie.org.cn
The key's randomart image is:
+---[RSA 2048]----+
|                 |
|                 |
|      . .        |
|     + * o     . |
|    + = S o o o  |
|     = % B = o   |
|    o O E = . .  |
|     B X B.+ .   |
|      + *+= .    |
+----[SHA256]-----+
[root@hdp101.yinzhengjie.org.cn ~]# 
[root@hdp101.yinzhengjie.org.cn ~]# ll ~/.ssh/id_rsa
-rw------- 1 root root 1679 Jan 21 02:37 /root/.ssh/id_rsa
[root@hdp101.yinzhengjie.org.cn ~]# 
[root@hdp101.yinzhengjie.org.cn ~]#

2>.配置hdp101.yinzhengjie.org.cn节点到其他节点免密登陆

[root@hdp101.yinzhengjie.org.cn ~]# ssh-copy-id root@hdp101.yinzhengjie.org.cn
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host 'hdp101.yinzhengjie.org.cn (172.200.1.101)' can't be established.
ECDSA key fingerprint is SHA256:y6iS5ipSyWSGRmgcjivbWhd78pKfrcuQHeBPd5H9/U8.
ECDSA key fingerprint is MD5:da:0f:2a:93:c0:d4:6e:7e:13:16:61:f1:93:a7:38:01.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@hdp101.yinzhengjie.org.cn's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@hdp101.yinzhengjie.org.cn'"
and check to make sure that only the key(s) you wanted were added.

[root@hdp101.yinzhengjie.org.cn ~]# 
[root@hdp101.yinzhengjie.org.cn ~]# who
root     tty1         2020-01-21 02:21
root     pts/0        2020-01-21 02:35 (172.200.0.1)
[root@hdp101.yinzhengjie.org.cn ~]# 
[root@hdp101.yinzhengjie.org.cn ~]# ssh hdp101.yinzhengjie.org.cn
Last login: Tue Jan 21 02:35:51 2020 from 172.200.0.1
[root@hdp101.yinzhengjie.org.cn ~]# 
[root@hdp101.yinzhengjie.org.cn ~]# who
root     tty1         2020-01-21 02:21
root     pts/0        2020-01-21 02:35 (172.200.0.1)
root     pts/1        2020-01-21 02:39 (172.200.1.101)
[root@hdp101.yinzhengjie.org.cn ~]# 
[root@hdp101.yinzhengjie.org.cn ~]# exit 
logout
Connection to hdp101.yinzhengjie.org.cn closed.
[root@hdp101.yinzhengjie.org.cn ~]# 
[root@hdp101.yinzhengjie.org.cn ~]#

[root@hdp101.yinzhengjie.org.cn ~]# ssh-copy-id root@hdp101.yinzhengjie.org.cn