1）mongodb-org

[mongodb]
name=MongoDB Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
gpgcheck=0
enabled=1

注意报错：

Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds'

数据源在国内访问网速过慢，可参考以下数据源：

http://mongo.a.mesa.io/repo/redhat/os/x86_64/

3、配置SELinux防火墙

$ sudo service mongod restart