On Thu, Oct 15, 2009 at 10:51 AM, Matthew Palmer <mpal...@hezmatt.org> wrote: > On Thu, Oct 15, 2009 at 10:07:56AM +0200, Colin wrote: >> Another question regarding how to activate a pacemaker config: Is >> there any way to activate the config before the cluster starts up? >> >> (Scenario is that the installation of the cluster nodes is fully >> automatic. It seems a bit awkward how to configure pacemaker if I >> can't just write out a config file during install: I need to somehow >> make sure that on first system boot a script that activates my config >> is executed, but not too early because it takes a minute or so until >> cibadmin(1) and friends actually work...) > > I believe you can drop a cib.xml into place before the cluster first starts > and it'll pick up and run with that. I'm not a fan of that method, though, > as it has all the same problems as imaging machines (no easy means of > updating running configs the same way as you update "initial" configs, and > so on). We're configuring pacemaker using Puppet, just describing the > primitives, groups, constraints and so on in the manifest and having Puppet > do all the heavy lifting if required.
Thanks for the note, plus: I've never heard of Puppet, but will check it out. (1 min later: http://wiki.github.com/camptocamp/puppet-pacemaker has no downloads, and no documentation; is it even remotely stable/ready for use?) > Why do you need to have the config setup completely before starting > the cluster, though? Let's just say I like my programs/daemons to start up with the correct configuration, because I've already been burnt: Some time back there was a similar problem with a different application where the default that it started up with just didn't work correctly; it's always easier when a program/daemon just reads a config file, and monitors it for changes (or re-reads it on HUP), these application-specific ways of feeding a config into an already running program are particular annoying because every program uses a different method for it. Is there a simple-and-clean alternative to dropping a cib.xml file into place when doing a fully-automated installation? Regards, Colin _______________________________________________ Pacemaker mailing list Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker
