[Cluster-devel] unfencing (cman startup)

David Teigland teigland at redhat.com
Fri Feb 27 15:52:09 UTC 2009


On Fri, Feb 27, 2009 at 12:54:20PM +0000, Chrissie Caulfield wrote:
> >>> Given the time at which fence_node -U will fire, you probably want to
> >>> add a cman_init + cman_is_active + cman_finish loop in fence_node to
> >>> make sure cman is ready to reply to our ccs queries, otherwise we might
> >>> have a race condition at boot time (it might be already there.. didn't
> >>> really check the code). All our daemons do that to give cman time to
> >>> bootstrap.
> >> Yes, good point.  I wonder if we'd be better off having cman_tool join
> >> effectively do an is_active wait before exiting?  Then we could probably
> >> avoid doing it many other places.  (It's also annoying when corosync crashes
> >> after is_active completes, but before I've read what I need from cman/ccs.)
> > 
> 
> Err, cman_tool already does this with the -w switch, and the init script
> uses it.

Great, so the constant flogging to add cman_is_active checks everywhere will
end!?  Can I remove all my cman_is_active loops?




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