Open Stack

I agree with Roger, the minimum requirements for training guides cluster
are as given by him and we have reasonable performance (atleast everything
works!). For smaller flavors (custom) even 512MB compute node would work
well.


On Thu, Apr 16, 2015 at 8:38 PM, Roger Luethi <rl at patchworkscience.org>
wrote:

> The training-labs scripts currently install OpenStack with this config:
>
> controller: 1 processor, 1 GB RAM
> network: 1 processor, 512 MB RAM
> compute: 2 processors, 1 GB RAM
>
> Main issue is that you can't start a whole lot of instances on compute with
> 1 GB RAM. Then again, you catch some interesting corner cases.
>
> So yes, this does work for a proof of concept environment. I suspect a)
> that having 2 processors on compute is not strictly necessary and b) it
> will still work once we're done adding heat and ceilometer (in progress).
>
> I wouldn't recommend putting any serious load on such an environment,
> though, unless you are studying failure modes.
>
> Roger
>
> On Wed, 15 Apr 2015 11:22:37 +0200, Christian Berendt wrote:
> > At the moment we mention the following minimum requirements for a
> > proof-of-concept environment in chapter 2 (basic environment):
> >
> > ---snip---
> > Controller Node: 1 processor, 2 GB memory, and 5 GB storage
> >
> > Network Node: 1 processor, 512 MB memory, and 5 GB storage
> >
> > Compute Node: 1 processor, 2 GB memory, and 10 GB storage
> > ---snap---
> >
> > Does this really work? Has anybody tried to run a network node with only
> > 512 MByte memory? Or a controller node with RabbitMQ, MySQL, MongoDB and
> > a lot of OpenStack services with 1 VCPU and 2 GByte memory?
> >
> > I would propose to increase the minimum requirements:
> >
> > Controller Node: 4 processors, 8 GB memory, and 15 GB storage
> > Network Node: 2 processors, 4 MB memory, and 10 GB storage
> > Compute Node: 2 processors, 4 GB memory, and 20 GB storage
> >
> > Christian.
>
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