Open Stack

We have the same basic problems. We have 4 different types of systems
integrated into our system. They all have different ratios of cpu to
memory, and we have some specialized hardware on one class of nodes.

We ended up setting up a series of chassis specific instance
definitions. We then use the filter scheduler to only accept hosts
with a particular configuration for the associated instance types.
(for example, our large memory nodes will only run instances with the
mem. prefix, and won't run generic instance types or ones for other
hardware types -- it seemed silly to waste large memory resources on
1GB ram vms)

It is pretty simple to write filter rules for the filter scheduler to
set this up. You just need instance types and a hostname convention
that you can use to matchmake.

While this seems a little hacky, it works well.
 -nld


On Tue, Jan 22, 2013 at 6:47 AM, Danilo Perogil <dperogil at dualtec.com.br> wrote:
> Hello everybody,
>
> Do you know of a way to set to work with OpenStack Computes Nodes containing
> different hardware?
> In my case, I did tests with different hardware, example 1 compute node with
> 24 processors and 128GB memory VS 1 compute node with 8 processors and 16GB
> of memory. In the test I saw he only makes division number of instances
> between total compute nodes, but it does a calculation for use by node.
>
> It is possible to make it work with some kind of calculation to not overload
> a node?
>
> Sorry my english google translate hahahah
>
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