[one-users] Users can't create VMs with large capacity (in the cloud view)

[Carlos Martín Sánchez]

Hi,

On Tue, Oct 28, 2014 at 1:06 PM, Pavel Tankov <
pavel.tankov at strategyobject.com> wrote:
>
> Does host 0 have enough capacity? Those numbers refer to the allocated
>> capacity, as can be seen in sunstone or the onehost show output.
>>
> Well, capacity could mean many things. I am not sure. See the attached
> screen shot.


The hosts have 2 kinds of capacity: real and allocated.
Real is the cpu/mem as reported by the monitoring probes.
Allocated is the amount of cpu/mem requested by the VMs running on this
host. This is the one used for scheduling.

In your case, the new VM requests 400 cpu. But the host has already
allocated 500 out of 800, this is why the scheduler decides that it doesn't
fit.

Regards
--
Carlos Martín, MSc
Project Engineer
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula
<http://twitter.com/opennebula> <cmartin at opennebula.org>

On Tue, Oct 28, 2014 at 1:06 PM, Pavel Tankov <
pavel.tankov at strategyobject.com> wrote:

> That's strange. You should have the following message:
>> Sched Message: No host with enough capacity to deploy the VM
>>
> I understand, but there is nothing there. Absolutely empty.
>
>  Does host 0 have enough capacity? Those numbers refer to the allocated
>> capacity, as can be seen in sunstone or the onehost show output.
>>
> Well, capacity could mean many things. I am not sure. See the attached
> screen shot.
>
> Pavel Tankov
>
> On 10/28/2014 12:06 PM, Carlos Martín Sánchez wrote:
>
>> Hi,
>>
>> On Mon, Oct 27, 2014 at 1:17 PM, Pavel Tankov
>> <pavel.tankov at strategyobject.com
>> <mailto:pavel.tankov at strategyobject.com>> wrote:
>>
>>         Admins and advanced users can see the scheduler error messages
>>         in sunstone, under the placement VM tab.
>>
>>     That's what I meant when I said "there are no logs".
>>
>>
>> That's strange. You should have the following message:
>> Sched Message: No host with enough capacity to deploy the VM
>>
>>     On the other hand, I didn't know about /var/log/one/sched.log. Here
>>     is what I found there:
>>
>>
>>     Mon Oct 27 14:15:52 2014 [Z0][VM][D]: Pending/rescheduling VM and
>>     capacity requirements:
>>            VM  CPU      Memory   System DS  Image DS
>>     ------------------------------__------------------------------
>>           110  400     2097152       10240  DS 1: 0
>>     Mon Oct 27 14:15:52 2014 [Z0][HOST][D]: Discovered Hosts (enabled):
>>       0
>>     Mon Oct 27 14:15:52 2014 [Z0][SCHED][D]: VM 110: Host 0 filtered
>>     out. Not enough capacity.
>>     Mon Oct 27 14:15:52 2014 [Z0][SCHED][I]: Scheduling Results:
>>
>>     and it keeps repeating.
>>
>>     Pavel Tankov
>>
>>
>> Does host 0 have enough capacity? Those numbers refer to the allocated
>> capacity, as can be seen in sunstone or the onehost show output.
>>
>> Regards
>> --
>> Carlos Martín, MSc
>> Project Engineer
>> OpenNebula - Flexible Enterprise Cloud Made Simple
>> www.OpenNebula.org <http://www.opennebula.org/> | cmartin at opennebula.org
>> <mailto:cmartin at opennebula.org> | @OpenNebula
>> <http://twitter.com/opennebula><mailto:cmartin at opennebula.org>
>>
>>
>>
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>> Users at lists.opennebula.org
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>>
>>
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