On Thu, Jul 29, 2010 at 09:32:20PM -0400, Ofer Inbar wrote: > Steven Dake <[email protected]> wrote: > > >Jul 29 12:24:15 pol6opsintmr2 openais[29062]: [MAIN ] Using default > > >multicast address of 239.192.184.181 > > > cman does not read /etc/ais/openais.conf. Instead it uses its own > > configuration file that is read from /etc/cluster/cluster.xml. The > > multicast address for cman is autogenerated by applying a hash function > > to the cluster name and using it as the lower 16 bits of the multicast > > address. A cman cluster will always have a multicast address of > > 239.192.x.x where x.x is the 16 bit hash produced from the cluster name. > > Thank you. This leaves me puzzled about more things, though: > > 1. You seem to be saying that the log messages I see labelled > "openais" are not actually from ais, but from some piece of > the cman servce (ccsd?). So, where is aisexec logging to?
This might help understand how cman configures openais: http://sources.redhat.com/cluster/wiki/HomePage?action=AttachFile&do=view&target=aiscman.pdf cman is an openais plugin, so you won't see a seperate pid for it. > 2. Like I said, I *do* see multicast traffic on the address I > configured in openais.conf, and I do see aisexec bound to > that IP. I do not see anything attempting to use this hash-derived > default address. When you say "a cman cluster will always have ..." > do you mean that the cluster will use *both* multicast addresses? > > In my case, the cluster is failing, which is why I'm looking into > what openais is doing, so the fact that I don't see anything using > the 239.192 address doesn't mean nothing would be using it if cluster > startup were successful. However, there's no actual "cman" entity > anymore in CentOS/RHEL 5, and my ccsd is running. > -- Cos > _______________________________________________ > Openais mailing list > [email protected] > https://lists.linux-foundation.org/mailman/listinfo/openais _______________________________________________ Openais mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/openais
