[one-users] Test Adapter for OpenNebula ?

[Ruben S. Montero]

Hi,

The URL for the dummy backend:

http://dev.opennebula.org/projects/onesim/wiki

Cheers

Ruben

On Tue, Apr 27, 2010 at 9:25 AM, Mehdi Sheikhalishahi
<mehdi.alishahi at gmail.com> wrote:
> Hi All,
>
> I'd like to work with OpenNebula in dummy mode (simulated). Would you
> please let me know about the status of this and how can I start to
> work with it?
>
> Regards,
> Mehdi
>
> On Fri, Oct 2, 2009 at 8:01 AM, Gary Mazz <garymazzaferro at gmail.com> wrote:
>> Hi Ruben,
>>
>> Thansk this works well. It will give me a leg up before I hook into the
>> cluster.
>>
>> cheers, -g
>>
>> Ruben S. Montero wrote:
>>>
>>> Morning Gary,
>>>
>>> Check http://dev.opennebula.org/projects/onesim/wiki/Wiki and give it
>>> a try. Let us know
>>> if it is good for your purposes.
>>>
>>> Cheers!
>>>
>>> Ruben
>>>
>>> On Tue, Sep 29, 2009 at 11:25 AM, Gary Mazz <garymazzaferro at gmail.com>
>>> wrote:
>>>
>>>>
>>>> Hi,
>>>>
>>>> I think this would work for the initial development,  I think the
>>>> simulated
>>>> time, especially for provisioning and startup is important. It allows my
>>>> work out the "remote aspects" of the http protocol. A settable in a conf
>>>> file would be great.
>>>>
>>>> Its 3:30 am by me, need some sleep... :-)
>>>>
>>>> -gary
>>>>
>>>> Borja Sotomayor wrote:
>>>>
>>>>>
>>>>> Hi,
>>>>>
>>>>>
>>>>>>
>>>>>> Well in fact this may be quite straight forward if we assume that all
>>>>>> operations always succeed and we do not need to model the behavior of
>>>>>> the hosts. Gary, let me know if this would work for your demo. Borja,
>>>>>> we can use this as a very simple development backend.
>>>>>>
>>>>>
>>>>> To be more specific, I think this 'test adapter' would have to provide
>>>>> the
>>>>> following features:
>>>>>
>>>>> - Allow specification of a number of physical hosts with specific
>>>>> capacities using a configuration file.
>>>>>
>>>>> - Internally keep track of what VMs are running and respond to
>>>>> monitoring
>>>>> command with predictable values. For simplicity, a simple starting point
>>>>> could be to make all VMs say that they are using 0% of their allocated
>>>>> CPU
>>>>> or 100% of their allocated CPU (maybe in the future allowing for more
>>>>> complex models, to replicate real workloads).
>>>>>
>>>>> - Allow execution of all OpenNebula operations. For simplicity, as Ruben
>>>>> points out, a simple starting point is to assume that all operations
>>>>> complete successfully and instantly. In the future, it would be nice to
>>>>> also
>>>>> configure delays (most importantly, suspension/resumption shouldn't be
>>>>> done
>>>>> instantaneously; the test driver should try to replicate that there's a
>>>>> delay while the VM suspends/resumes, and that is should remain in the
>>>>> "suspending" state for some time before transitioning to "suspended")
>>>>> and
>>>>> even failures (e.g., I want to add error handling code in Haizea, but
>>>>> doing
>>>>> this with a real testbed is messy, since it involves somehow provoking
>>>>> the
>>>>> VMs to fail).
>>>>>
>>>>> - As a starting point, this test adapter should operate in "real time".
>>>>> For simulations, it would be nice to have "simulated time" (so we can
>>>>> fast-forward through a lot of requests) but since the core and the
>>>>> scheduler
>>>>> are separate processes, it would involve coordinating this simulated
>>>>> time
>>>>> between the two components. This is doable, but we would to think about
>>>>> what's the best way of doing this.
>>>>>
>>>>>
>>>>> Gary: Would the above meet your requirements?
>>>>>
>>>>>
>>>>> Cheers!
>>>>>
>>>>
>>>> _______________________________________________
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>>>> Users at lists.opennebula.org
>>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>
>>>>
>>>
>>>
>>>
>>>
>>
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>>
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>



-- 
Dr. Ruben Santiago Montero
Associate Professor (Profesor Titular), Complutense University of Madrid

URL: http://dsa-research.org/doku.php?id=people:ruben
Weblog: http://blog.dsa-research.org/?author=7