----- Original Message -----
From: "Bob Doolittle" <bob@doolittle.us.com> To: "Doron Fediuck" <dfediuck@redhat.com>, "Andrew Lau" <andrew@andrewklau.com> Cc: "users" <users@ovirt.org>, "Jiri Moskovcak" <jmoskovc@redhat.com>, "Sandro Bonazzola" <sbonazzo@redhat.com> Sent: Monday, May 26, 2014 6:12:04 PM Subject: Re: [ovirt-users] Can HA Agent control NFS Mount?
On 05/26/2014 02:38 AM, Doron Fediuck wrote:
Great to have your feedback guys!
So just to clarify some of the issues you mentioned;
Hosted engine wasn't designed for a 'single node' use case, as we do want it to be highly available. This is why it's being restarted elsewhere or even on the same server if no better alternative.
I hope you will keep this configuration in your design space as you move forward. As you can see it is likely to be a popular one. At a previous employer, everybody in our development group had a single (powerful) machine running VMware vSphere, with a hosted vCenter, to use as a development VM testbed.
It's likely to be popular for people with few resources who want to run in a fully supported configuration.
HA is great, but not every environment has the resources/requirement to support it. oVirt has a lot to offer even a leaner environment and I hope those environments continue to get attention as the product matures. For example, I hope there is a reasonable story around upgrades to future releases for single-node hosted configurations.
Having said that, it is possible to set global maintenance mode as a first step (in the UI: right click engine vm and choose ha-maintenance). Then you can ssh into the engine vm and init 0.
What is the recipe for a clean startup after shutdown? Can we do 'hosted-engine --vm-start' while the system is in Global Maintenance mode?
Thanks, Bob
Hi Bob, If all you need is a way to run VMs, then Kimchi[1] from the oVirt eco-system can be a better solution, as it's designed for a single-node use case. If you wish to run ovirt in a vm you can run a VM with Kimchi and install the engine inside. Also, coming on 3.5 is the ovirt appliance[2] which will simplify it. If I'm missing something please share your thoughts. As for clean start after maintenance, I'd expect "hosted-engine --set-maintenance=none" will allow the agent to start the VM automatically. If this is not the case please let us know. Thanks, Doron [1] https://github.com/kimchi-project/kimchi/wiki [2] http://www.ovirt.org/Feature/oVirtAppliance