I'm getting this error as of last night on all of my CentOS 7 boxes: /etc/cron.hourly/0yum-hourly.cron: Updateinfo file is not valid XML: <open file '/var/cache/yum/x86_64/7/epel/92f2e15cad66d79ea1ad327e2af7af89d98e4d153d7a3e27ff41946f476af5b4-updateinfo.xml.zck', mode 'rt' at 0x7f2f134d6270> Is this an infrastructure problem that can be addressed on the master mirror, or is there some manual step I'm expected to perform on all my CentOS 7 boxes due to the introduction of Zchunk? Thanks.