[one-users] VM memory limit in OpenNebula or KVM?

[Gerry O'Brien]

On 07/03/2013 09:20, Daniel Molina wrote:
> On 7 March 2013 09:29, Gerry O'Brien <gerry at scss.tcd.ie> wrote:
>> Hi Daniel,
>>
>>    We are running version 3.8.3 and mm_sched is running. Everything else is
>> working as per normal.
>>
>>    We have managed to solve the problem by reducing the memory requirement to
>> 14GB. My guess is that Sunstone is reporting more memory available than can
>> actually be used so the instantation remained in the PENDING state as there
>> were no host available with sufficient memory resources.
> The scheduler defines a parameter to adjust the fraction of
> memory reserved by the hypervisor(HYPERVISOR_MEM) [1], by default is
> set to 10%.
>
> [1] http://opennebula.org/documentation:rel3.8:schg#configuration
>
> Cheers
Does that 10% come out of the available host memory reported by Sunstone?


>
>>        Regards,
>>          Gerry
>>
>>
>> On 06/03/2013 09:43, Daniel Molina wrote:
>>> Hi,
>>>
>>> On 5 March 2013 14:29, Gerry O'Brien <gerry at scss.tcd.ie> wrote:
>>>> Hi,
>>>>
>>>>       Is there a memory maximum set somewhere in OpenNebula or Kvm that
>>>> limits
>>>> the amount of memory a virtual machine created with the OCCI self-service
>>>> can have? Our hosts have 16GB of memory. Sunstone reports 15.7G
>>>> available.
>>>> Yet, when I try and create a VM with 15360 memory using the self-service
>>>> it
>>>> remains in PENDING and never gets deployed. It is not a user quota issue.
>>>> The oned.log says reports SUCCESS (see below).
>>> What opennebula version are you using?
>>> Is the mm_sched process running?
>>>
>>> Cheers
>>>
>>>>       Regards,
>>>>           Gerry
>>>>
>>>> Tue Mar  5 13:02:06 2013 [ReM][D]: Req:8304 UID:2 VirtualMachineInfo
>>>> invoked, 4259
>>>> Tue Mar  5 13:02:06 2013 [ReM][D]: Req:8304 UID:2 VirtualMachineInfo
>>>> result
>>>> SUCCESS, "<VM><ID>4259</ID><UI..."
>>>> Tue Mar  5 13:02:06 2013 [ReM][D]: Req:2560 UID:2 VirtualMachineInfo
>>>> invoked, 4259
>>>> Tue Mar  5 13:02:06 2013 [ReM][D]: Req:2560 UID:2 VirtualMachineInfo
>>>> result
>>>> SUCCESS, "<VM><ID>4259</ID><UI..."
>>>>
>>>>
>>>> --
>>>> Gerry O'Brien
>>>>
>>>> Systems Manager
>>>> School of Computer Science and Statistics
>>>> Trinity College Dublin
>>>> Dublin 2
>>>> IRELAND
>>>>
>>>> 00 353 1 896 1341
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opennebula.org
>>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>
>>
>> --
>> Gerry O'Brien
>>
>> Systems Manager
>> School of Computer Science and Statistics
>> Trinity College Dublin
>> Dublin 2
>> IRELAND
>>
>> 00 353 1 896 1341
>>
>
>


-- 
Gerry O'Brien

Systems Manager
School of Computer Science and Statistics
Trinity College Dublin
Dublin 2
IRELAND

00 353 1 896 1341