Hi, On Wed, Nov 24, 2010 at 10:52:23AM +0000, Dave Williams wrote: > On 10:35, Wed 24 Nov 10, Dejan Muhamedagic wrote: > > Hi, > > > > On Tue, Nov 23, 2010 at 11:03:33PM +0000, Dave Williams wrote: > > > Hi, > > > I have a problem that looks similar to that reported "possible deadlock > > > in lrmd" on 21st Oct > > > > > > When running lradmin -C to list classes the first time it comes back > > > immediately with the expected list e.g. > > > > > > r...@node1:/home# lrmadmin -C > > > There are 5 RA classes supported: > > > lsb > > > ocf > > > stonith > > > upstart > > > heartbeat > > > > > > All subsequent attempts lrmadmin hangs and never comes back (you have to > > > kill > > > with crtl-C). This is repeatable on all the machines I have tried it on. > > > > I'm afraid that this was to be expected. > Hi Dejan - thanks for your reply. > > I'm not sure which you imply: > a) Its known to be buggy? > b) Its working as designed? > I presume a).
It is somewhat technical, but basically it's a). > ..... > > > > On the surface the overall sequence makes sense but the hang doesnt and > > > clearly shouldnt happen. I am at a loss as to whether it is a GLib > > > issues (unlikely I would have thought?) or its an lrmd bug. > > > > It's neither. It's bad usage of glib. > > > Is there anyone working on resolving this? I'm happy to help but dont > have the time to debug further at present - not being a glib expert. > I have other critical software projects to work on and just need > something that works in this area! > > > > IMHO lrmd should NEVER hang! > > > > If you don't use upstart, it won't hang. > > Sadly I need upstart. Thats one reason I got into this situation in the > first place! > > I currently have a production clustered server down because of this and > the fact that ubuntu (I'm advised) have an inconsistently compiled set > of HA components. Certaintly both lucid and maverick released packages > leave defunct processes lying around and give highly unreliable > operation :-( The most plausible explanation is in this thread: http://marc.info/?l=linux-ha-dev&m=128765996706209&w=2 The author didn't do anything yet about it, but hopefully it is going to change. Thanks, Dejan > > Dave > _______________________________________________________ > Linux-HA-Dev: Linux-HA-Dev@lists.linux-ha.org > http://lists.linux-ha.org/mailman/listinfo/linux-ha-dev > Home Page: http://linux-ha.org/ _______________________________________________________ Linux-HA-Dev: Linux-HA-Dev@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha-dev Home Page: http://linux-ha.org/
