sudo yum install logstash 错误：为 repo 'appstream' 下载元数据失败 :

按照此地址使用yum命令安装logstash，https://www.elastic.co/guide/en/logstash/8.1/installing-logstash.html#_yum

sudo yum install logstash
出现错误：

CentOS Linux 8 - AppStream                                                                                                                              88  B/s |  38  B     00:00
错误：为 repo 'appstream' 下载元数据失败 : Cannot prepare internal mirrorlist: No URLs in mirrorlist
[root@localhost ~]# sudo yum install logstash
CentOS Linux 8 - AppStream                                                                                                                              91  B/s |  38  B     00:00
错误：为 repo 'appstream' 下载元数据失败 : Cannot prepare internal mirrorlist: No URLs in mirrorlist

解决办法参照：

https://www.cnblogs.com/bpzblog/p/13918199.html

https://blog.csdn.net/lisongyue123/article/details/110822915