On Thu, Oct 6, 2022 at 4:08 PM Ken Gaillot <kgail...@redhat.com> wrote: > > On Thu, 2022-10-06 at 21:05 +0200, Lentes, Bernd wrote: > > Hi, > > > > i have some problems with our DLM, so i wanted to trace it. Yesterday > > i just set a trace for "monitor". No restart of DLM afterwards. It > > went fine as expected.
How did you set a trace just for monitor? > > I got logs in /var/lib/heartbeat/trace_ra. After some monitor i > > stopped tracing. > > > > Today i set a trace for all operations. > > Now resource DLM restarted: > > * Restart dlm:0 ( ha-idg-1 > > ) due to resource definition change > > I didn't expect that so i had some trouble. > > Is the difference in this behaviour intentional ? If yes, why ? Is > > there a rule ? > > Yes, trace_ra is an agent-defined resource parameter, not a Pacemaker- > defined meta-attribute. Resources are restarted anytime a parameter > changes (unless the parameter is set up for reloads). > > trace_ra is unusual in that it's supported automatically by the OCF > shell functions, rather than by the agents directly. That means it's > not advertised in metadata. Otherwise agents could mark it as > reloadable, and reload would be a quick no-op. > > > > > Furthermore i'd like to ask where i can find more information about > > DLM, because it is a mystery for me. Wish I could help with that -- it's mostly a mystery to me too ;) > > Sometimes the DLM does not respond to the "monitor", so it needs to > > be restarted, and therefore all depending resources (which is a lot). > > This happens under some load (although not completely overwhelmed). > > > > Thanks. > > > > Bernd > > > -- > Ken Gaillot <kgail...@redhat.com> > > _______________________________________________ > Manage your subscription: > https://lists.clusterlabs.org/mailman/listinfo/users > > ClusterLabs home: https://www.clusterlabs.org/ > -- Regards, Reid Wahl (He/Him) Senior Software Engineer, Red Hat RHEL High Availability - Pacemaker _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/