While installing Plesk Or any other application On Linux CentOS server if you are getting following error :
[Errno -1] Metadata file does not match checksum
The error is with fastest mirror plugin, trying to look for some bad mirror as the source of choice.you can add the broken mirror to the exclude line in /etc/yum/pluginconf.d/fastestmirror.conf or disable it.
To disable it you can open the file /etc/yum/pluginconf.d/fastestmirror.conf in the editor of your choice and change the following line
And then execute yum clean all
You should then be able to complete the installation