Hi, On 02/03/2012 04:05 PM, Owen Le Blanc wrote: > This still > leaves open the question of why split brain keeps occuring? The > cluster is managed by pacemaker, version 1.1.6, with corosync, version > 1.4.2. There isn't actually any real data on the two drbd devices, > since this is only a test. But it concerns me that it seems to go > into split brain about once a week.
this is neigh impossible to answer without looking at your setup and workflows. Split brain can only happen when the nodes get disconnected (this includes downtimes of either node). How often are your nodes getting separated thus? ...this is not dual-primary, is it? Prune your logs, it should be easy to determine when DRBD changes states. As to why, well - analyzing pacemaker activity from hindsight can be challenging, I guess. Your best bet is probably to make sure the nodes don't get separated, and that maintenance is done very carefully. HTH, Felix _______________________________________________ drbd-user mailing list [email protected] http://lists.linbit.com/mailman/listinfo/drbd-user
