Subject: Re: [Users] Using virsh on the node Date: Mon, 27 Feb 2012 20:25:55 +0200 From: Itamar Heim <iheim(a)redhat.com&gt; To: Dan Yasny <dyasny(a)redhat.com&gt; CC: users(a)ovirt.org On 02/27/2012 06:34 PM, Dan Yasny wrote: > > > ----- Original Message ----- >> From: "Nathan Stratton&quot;&lt;nathan(a)robotics.net&gt; >> To: "Dan Yasny&quot;&lt;dyasny(a)redhat.com&gt; >> Cc: users(a)ovirt.org, "Andrew Cathrow&quot;&lt;acathrow(a)redhat.com&gt; >> Sent: Monday, 27 February, 2012 4:13:54 PM >> Subject: Re: [Users] Using virsh on the node >> >> On Mon, 27 Feb 2012, Dan Yasny wrote: >> >>> So the engine is a VM in that same cluster, along with the VMs it >>> manages? >> >> Yes, the only thing I have not been able to figure out is how to let >> the >> ovirt-engine know that ovirt-engine is running. :) I thought that it >> would >> see via libvirt, but it does not. I also tried setting it in the db, >> but >> it keeps getting cleared. Any idea on how to let ovirt-engine know >> that a >> host has been started manually? > > Seriously, not a good idea. The Engine is supposed to be looking at the setup, and not be in the setup, where it may be affected by the problems that might occur to the setup. > I'm pretty sure there's lots of though being devoted to removing this limitation, but when we say it's a bad idea, it really is, it's not like we simply want you to run an extra machine Doron - this reminds me of the all-in-one discussion. what was the resolution on flagging the node as a node running an engine VM (even without engine knowing about its own VM)

> >> >>> What do you use for storage? >> > > That's easier than block storage, but still, what happens if the host where the engine was running failed - who would update VM statuses and restart the HA VMs? > >> NFS: >> >> mount 10.13.0.4:/images/ /rhev/data-center/mnt/10.13.0.4:_images >> mount 10.13.0.4:/iso/ /rhev/data-center/mnt/10.13.0.4:_iso >> >>> Dan Yasny >>> Red Hat Israel >>> +972 9769 2280 >> >>> <> >> Nathan Stratton CTO, BlinkMind, Inc. >> nathan at robotics.net nathan at >> blinkmind.com >> http://www.robotics.net >> http://www.blinkmind.com >>