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

[Pavel Tankov]

OK, I understand it now. Then, does Opennebula support any kind of 
overcommitting or something?

Pavel Tankov

On 11/03/2014 07:29 PM, Carlos Martín Sánchez wrote:
> Hi,
>
> On Tue, Oct 28, 2014 at 1:06 PM, Pavel Tankov
> <pavel.tankov at strategyobject.com
> <mailto: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 <http://www.OpenNebula.org> | cmartin at opennebula.org
> <mailto:cmartin at opennebula.org> | @OpenNebula
> <http://twitter.com/opennebula><mailto:cmartin at opennebula.org>
>
> On Tue, Oct 28, 2014 at 1:06 PM, Pavel Tankov
> <pavel.tankov at strategyobject.com
> <mailto: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>
>         <mailto: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>
>         <http://www.opennebula.org/> | cmartin at opennebula.org
>         <mailto:cmartin at opennebula.org>
>         <mailto:cmartin at opennebula.org
>         <mailto:cmartin at opennebula.org>__> | @OpenNebula
>         <http://twitter.com/opennebula__><mailto:cmartin at opennebula.__org <mailto:cmartin at opennebula.org>>
>
>
>
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