I was just notified by the ftp admin of gwdg.de (Eberhard), the long time reliable mirror of openSUSE, that he is going to stop the cronjobs at ftp4 which generate the /pub/linux/suse/apt/ contents at ftp4.gwdg.de, and shortly there after the rsync runs which sync it to ftp3 and ftp5 will be disabled.
I would like to thank Eberhard for the reliable service and all the hard work that was performed to generate the apt repositories during all those years!