so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:

            yum-config-manager --save --setopt=epel.skip_if_unavailable=true

failure: repodata/d1516ecd56df2d9706acbb6c3cd65d35e4b511425de311db22b8f29b7474a9d3-primary.xml.gz from epel: [Errno 256] No more mirrors to try.
http://linuxsoft.cern.ch/epel/7/x86_64/repodata/d1516ecd56df2d9706acbb6c3cd65d35e4b511425de311db22b8f29b7474a9d3-primary.xml.gz: [Errno 14] HTTP Error 404 - Not Found
ERROR: Job failed: exit code 1