On 05/08/15 03:09 PM, Jan Pokorný wrote: > On 02/08/15 16:30 +0200, Noel Kuntze wrote: >> I would like to know if it is possible for >> fence-virtd to realy a request from a client, which it >> received via serial, VM channel or TCP connection >> from an agent to another daemon, if the VM that should >> be fenced does not run on the same host as the contacted daemon. > > First, it doesn't sound like very commendable or at least common setup > to have virtualized cluster nodes spread around multiple hosts. > When increasing the complexity of a deployment, new points of failure > can be introduced, defeating the purpose of HA. > > Could you please share details of your use case?
To interject; It is not something I would do, but I've heard of cases where a separate department handles hardware and the devops types are restricted to VMs only. In such a case, you would want to span hosts to protect against a host failure. Not sure if this is Noel's use-case, of course. > To your question, it might (hypothetically) be doable if you manage to > put the guests on the first host together with the other host into > the same multicast-friendly network or will rely multicast packets > between those "remote" sides by other means. > > Alternatively, you might implement such relying directly as > fence_virtd module (backend), possibly reusing some code from the > client side (fence_virt). -- Digimer Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is trapped in the mind of a person without access to education? _______________________________________________ Users mailing list: [email protected] http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
