On May 19, 2008, at 7:14 AM, Nitin wrote:
On Fri, 2008-05-16 at 15:08 +0200, Andrew Beekhof wrote:
On May 16, 2008, at 3:04 PM, Nitin wrote:
Hello,
I would like to make my virtual machines (DomUs) resources to
participate in the HA cluster. Dom0 (Physical Host) may or may not
have
resources.
To do this I would like to treat DomUs as *resource* in the
cluster as
opposed to treating them as *nodes*. I am planning to write OCF
resource
agents for virtual machines. But I am not very sure about how to
make a
resource's resource to participate in the cluster.
Is there any configuration in existing structure to achieve this??
If no
then please tell me how to go about creating a "container"
resource in
CRM.
Why not just use the Xen agent if you don't want them to be cluster
nodes?
Or do you mean that you want them to both be resources and to run
other resources too?
Yes. Please advise me how to go about it.
Thanks a lot for reply.
We don't have a clean way to do that yet
Possible options:
a) start the services at VM boot (you don't get monitoring)
b) start the services at VM boot and modify the Xen agent to monitor
the services inside the VM (ugly)
c) add a proxy resource to start/stop/monitor the services inside the
VM (complex)
d) implement a generic version of c)
e) have the VM join the cluster (makes stonith and quorum "interesting")
f) wait for us to implement clusters-of-clusters which also solves
this scenario "for free"
g) something else i've not thought of
_______________________________________________
Pacemaker mailing list
Pacemaker@clusterlabs.org
http://list.clusterlabs.org/mailman/listinfo/pacemaker
