Re: [Engine-devel] Announcing a proof of concept REST API for VDSM
On 11/30/2011 09:09 AM, Itamar Heim wrote:
On 11/30/2011 05:00 PM, Adam Litke wrote:
>> single node and exposing the exact same REST API and behavior of the
>> multi-node ovirt engine would be easier to cosnume for someone that
>> wants to interact with a single node same way they would interact
>> with ovirt-engine.
>
> In principle an ovirt-engine-light sounds great. Especially if we could get the
> existing GUIs for free. The main concern I have with this is the gargantuan
> nature of the ovirt-engine and GUI code bases. You want to reserve as many
> system resources for the guests but it seems that ovirt-engine will consume at
> least several GB of RAM and one or more CPU cores. How would you lighten up
> this JBoss stack without rewriting it in a more efficient language? One use
> case I am interested in is a single-node ovirt instance to control VMs on my
> laptop. I can spare several hundred MB of RAM at most for the management stack.
>
this is much much lighter and faster with jboss7 (which iirc, takes
100MB to start, tomcat takes 80MB for comparison).
When thinking about something like ovirt-node, my concern is that a jboss7 based
ovirt-lite would end up significantly impact the size of the image.
I think ovirt-node tends to be around ~100MB today which includes VDSM. A
simple REST API (as Adam proposes) wouldn't increase this size at all.
Just the openjdk package looks to be around 72MB.
Regards,
Anthony Liguori