下载Cloudera Repo

wget http://archive-primary.cloudera.com/gplextras5/redhat/6/x86_64/gplextras/cloudera-gplextras5.repo -P /etc/yum.repos.d
wget https://archive.cloudera.com/cdh5/redhat/6/x86_64/cdh/cloudera-cdh5.repo
mv cloudera-cdh5.repo /etc/yum.repos.d/

2.清理下下缓存

[root@bastion-IDC yum.repos.d]# yum clean all 
[root@bastion-IDC yum.repos.d]# yum makecache                                   //将服务器上的软件包信息缓存到本地,以提高搜索安装软件的速度
[root@bastion-IDC yum.repos.d]# yum update

最后再次使用yum就ok了
[root@bastion-IDC yum.repos.d]# yum list

scp /etc/yum.repos.d/cloudera-cdh5.repo   host:/etc/ yum.repos.d