[Linux-cluster] Power based fencing in cluster causes single point of failure that can take down a cluster

[Josef Whiter]

You can either have redundant fence devices, or look into qdisk.

Josef

On Tue, Jan 09, 2007 at 10:50:53AM -0800, Jonathan Biggar wrote:
> If we set up a cluster and use network power switches for fencing, won't 
> the failure of the power switch attached to a cluster member cause all 
> services that were running on that node to fail to migrate to other 
> cluster members?
> 
> This seems to happen to us in practice, because fencing the offline 
> member fails due to the power switch being unavailable, so rgmanager 
> never migrates the failed service(s) to another member.
> 
> Is there a general solution to this problem that I'm missing?
> 
> -- 
> Jon Biggar
> Levanta
> jon at levanta.com
> 650-403-7252
> 
> --
> Linux-cluster mailing list
> Linux-cluster at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-cluster