[Errno 14] PYCURL ERROR 22 阿里yum源安裝，centos 6已停止維護

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-6.repo

[root@hadoop101 yum.repos.d]# yum makecache 
已載入外掛：fastestmirror, refresh-packagekit, security
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Repository contrib is listed more than once in the configuration
Determining fastest mirrors
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
http://mirrors.aliyun.com/centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"
嘗試其他映象。
To address this issue please refer to the below knowledge base article 

https://access.redhat.com/articles/1320623

If above article doesn't help to resolve this issue please open a ticket with Red Hat Support.

http://mirrors.aliyuncs.com/centos/6/os/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://mirrors.aliyuncs.com/centos/6/os/x86_64/repodata/repomd.xml: (28, 'connect() timed out!')
嘗試其他映象。
http://mirrors.cloud.aliyuncs.com/centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.cloud.aliyuncs.com'"
嘗試其他映象。
錯誤：Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again
[root@hadoop101 yum.repos.d]#   

1. 官方: 非阿里雲ECS使用者會出現 Couldn’t resolve host ‘mirrors.cloud.aliyuncs.com’ 資訊，不影響使用。使用者也可自行修改相關配置: eg:

   sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
   

2. 替換http成https

   sed -i  's/http/https/g' /etc/yum.repos.d/CentOS-Base.repo
   

3. 替換版本，$releasever替換6.8, 6.8是我用的版本

   sed -i  's/$releasever/6.8/g' /etc/yum.repos.d/CentOS-Base.repo
   

4. 替換centos為centos-vault

   sed -i  's/centos/centos-vault/g' /etc/yum.repos.d/CentOS-Base.repo
   

[root@hadoop101 yum.repos.d]# yum clean all && yum makecache
已載入外掛：fastestmirror, refresh-packagekit, security
Cleaning repos: base extras updates
清理一切
Cleaning up list of fastest mirrors
已載入外掛：fastestmirror, refresh-packagekit, security
Determining fastest mirrors
base                                                     | 3.7 kB     00:00     
base/group_gz                                            | 226 kB     00:00     
base/filelists_db                                        | 6.4 MB     00:01     
base/primary_db                                          | 4.7 MB     00:00     
base/other_db                                            | 2.8 MB     00:00     
extras                                                   | 3.4 kB     00:00     
extras/filelists_db                                      |  38 kB     00:00     
extras/prestodelta                                       | 1.3 kB     00:00     
extras/primary_db                                        |  37 kB     00:00     
extras/other_db                                          |  51 kB     00:00     
updates                                                  | 3.4 kB     00:00     
updates/filelists_db                                     | 3.5 MB     00:00     
updates/prestodelta                                      | 390 kB     00:00     
updates/primary_db                                       | 5.4 MB     00:01     
updates/other_db                                         |  74 MB     00:12     
後設資料快取已建立
[root@hadoop101 yum.repos.d]#