基于Ambari的WebUI实现集群扩容案例
作者：尹正杰
版权声明：原创作品，谢绝转载！否则将追究法律责任。
一.将HDP的服务托管给Ambari服务
1>.点击“Service Auto Start”
2>.进入到"Server Auto Start"的管理界面
3>.勾选需要随着Ambari启动而启动的HDP服务组件
4>.确认保存
二.扩容节点准备环境
1>.配置Ambari服务器与将要扩容的节点免密登录
[root@hdp101.yinzhengjie.org.cn ~]# ssh-copy-id root@hdp104.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 'hdp104.yinzhengjie.org.cn (172.200.1.104)' 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@hdp104.yinzhengjie.org.cn's password: Number of key(s) added: 1 Now try logging into the machine, with: "ssh 'root@hdp104.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 ~]# [root@hdp101.yinzhengjie.org.cn ~]# ssh root@hdp104.yinzhengjie.org.cn Last login: Tue Feb 18 23:32:24 2020 from 172.200.0.1 [root@hdp104.yinzhengjie.org.cn ~]# [root@hdp104.yinzhengjie.org.cn ~]# who root pts/0 2020-02-18 23:32 (172.200.0.1) root pts/1 2020-02-18 23:34 (172.200.1.101) [root@hdp104.yinzhengjie.org.cn ~]# [root@hdp104.yinzhengjie.org.cn ~]# exit logout Connection to hdp104.yinzhengjie.org.cn closed. [root@hdp101.yinzhengjie.org.cn ~]# [root@hdp101.yinzhengjie.org.cn ~]# who root pts/0 2020-02-18 15:28 (172.200.0.1) [root@hdp101.yinzhengjie.org.cn ~]# [root@hdp101.yinzhengjie.org.cn ~]#