No package erlang available.

问题详情：

[root@kafka /]# yum install erlang
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.163.com
 * extras: mirrors.nwsuaf.edu.cn
 * updates: ftp.sjtu.edu.cn
No package erlang available.
Error: Nothing to do      

解决方案：

需要安装第三方软件库 epel

# 下载地址，找到其中一个版本即可
https://dl.fedoraproject.org/pub/epel/
# 下载
wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
# 安装完成即可
rpm -ivh epel-release-latest-7.noarch.rpm