Andrew Beekhof schrieb: > > On May 19, 2008, at 4:39 PM, Michael Schwartzkopff wrote: > >> Hi, >> >> we had the possibility to play with a large Linux-HA installation and >> we tried >> to set up a 16-node-cluster. We somehow manged it. Please see the >> result at: >> >> http://clusterbau.blogspot.com/2008/05/how-many-nodes-does-cluster-tolerate.html >> >> >> Bascially we found out that such large installations are hard to >> manage and >> get really slow. > > I'd be very interesting in finding out (and fixing) why the cluster was > so slow. > > Some things I can think of that may help... > * which version were you running?
Latest pacemaker available from SuSE build service. > * did you set globally_unique=false for the clone(s)? Default value. We did not change anything > * how much monitoring were you doing? once every 60 seconds. > * what log level did you have in ha.cf? Default. No changes on ha.cf here. > > Which process(es) did top report to be the biggest CPU hogs? Can't remember. It was just playing around. Nothing for serious investigations. Perhaps next time I have access to that machine(s) we can do a debugging session. I will ask. Greetings, Michael. _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
