On 06/20/2011 01:40 PM, Hans Lammerts wrote: > Hi, > > > > I just installed two servers, both with Ubuntu 10.04 64bit. No problems > here. > > The idea is to create a cluster that is going to server as a high > available Zarafa environment. > > One of the steps is to install corosync (which gets installed > automatically when installing Pacemaker). > > I have two NICs on both machines: > > machine 1: one wired ethernetcard (eth0), ip 192.168.2.20 > > one wirelsess card (wlan0), ip 10.1.1.2 > > machine 2: one wired ethernetcard (eth0), ip 192.168.2.30 > > one wired ethernetcard (eth1), ip 10.1.1.3
[SNIP] > > > The only real difference between these two machines is that the corosync > communication runs over the 10.1.1.0 network, but machine one has a > wireless adapter for this network and machine two has a wired network > card for this network. > > > > Could this be the problem ? Or do I have to look for something else ? > > Would setting debug to "on" help me more ? > > Hope someone can shed some light on this problem. I sure can't find > anything about this using Google..... multicast over wifi does not work the same way as on wired ethernet. on a wired ethernet, packets are dispatched as soon as possible. In a wifi environment, multicast packets are queued and sent only during a specific allocated slot (IIRC during beacon broadcasting, but please double check with google). This slot is small and might not be able to contain the whole data set required for corosync to operate properly. If you can't opt out of wifi, please try using udpu transport instead. Fabio _______________________________________________ Openais mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/openais
