On Fri, 19.07.13 21:05, Pablo Nehab Hess (pa...@hess.net.br) wrote: > Hi all, > > I was wondering how much systemd could add to current high > availability cluster setups. > > Today systemd is used on HA clusters as just an init replacement. > However, there are systemd features that might come in handy and > improve the overall performance and even reliability of such clusters: > > * watchdog functionality as in > <http://0pointer.de/blog/projects/watchdog.html> is the most evident > feature; > * tcp-based dbus communication could be used to exchange information > between cluster members; > > Also, I believe systemd functionality could be extended so it would > take into consideration other nodes' systemd instances in order to > make sure each service is always alive somewhere -- call it "floating > units" if you will. :-) > > Does this idea even make sense? Is it too "one systemd to rule them all"?
Well, I don't really know what exactly HA clusters would need. However, note that we actually do try to draw the line somewhere where systemd ends... I have the suspicion the HA cluster stuff something which could make great use of systemd's comprehensive bus interfaces, but I am not convinced such a project should sit in systemd itself. Lennart -- Lennart Poettering - Red Hat, Inc. _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel