[one-users] RANK=FREEMEMORY

[Steven Timm]

I think I see what went wrong by looking at the documentation.
The value as shown in onehost show -x
is now labeled FREE_MEM instead of FREEMEMORY.
(The current docs also correctly show the variable as FREE_MEM).
I will edit my template and see if that has an effect.

Also it looks like RANK is deprecated in favor of SCHED_RANK
and SCHED_DS_RANK is that correct?

Any way short of a text editor and onetemplate update to
fix all the legacy templates that have it wrong?

Steve Timm


On Thu, 30 Oct 2014, Ruben S. Montero wrote:

> Hi Steven,
> This should be working as long it is in the host information. Could you send
> the onehost show -x for one of the hosts? (You can send it to me offlist if
> there is any sensible information).
> 
> The Rank expression is supposed to work with any variable under the
> following XPaths:
> 
>     "/HOST/TEMPLATE/",
>     "/HOST/HOST_SHARE/",
>     "/HOST/",
>     "/HOST/CLUSTER_TEMPLATE/
> 
> Cheers
> 
> Ruben
> 
> On Wed, Oct 29, 2014 at 10:34 PM, Steven Timm <timm at fnal.gov> wrote:
>
>       Under OpenNebula 3 we have been using RANK=FREEMEMORY
>       to launch the next virtual machine on the hypervisor which
>       has the most memory available at the time.  I am using the
>       same in OpenNebula 4.8 but it does not appear to be working,
>       even though FREEMEMORY is still a documented selection variable
>       in the requirements section.  In particular
>       all the RANKS of the machines show up as "0" in the sched.log
>       when you look at the allocation cycle and there is no
>       "FREEMEMORY"
>       variable reported in the output of
>       onehost show xxxx
>       under opennebula 4.8.
>
>       Are there other selection variables which could have
>       the same desired effect, i.e. a horizontal fill of the cloud?
>
>       Steve Timm
> 
>
>       ------------------------------------------------------------------
>       Steven C. Timm, Ph.D  (630) 840-8525
>       timm at fnal.gov  http://home.fnal.gov/~timm/
>       Fermilab Scientific Computing Division, Scientific Computing
>       Services Quad.
>       Grid and Cloud Services Dept., Associate Dept. Head for Cloud
>       Computing
>       _______________________________________________
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>       Users at lists.opennebula.org
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> 
> 
> 
> 
> --
> Ruben S. Montero, PhD
> Project co-Lead and Chief ArchitectOpenNebula - Flexible Enterprise Cloud
> Made Simple
> www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
> 
>

------------------------------------------------------------------
Steven C. Timm, Ph.D  (630) 840-8525
timm at fnal.gov  http://home.fnal.gov/~timm/
Fermilab Scientific Computing Division, Scientific Computing Services Quad.
Grid and Cloud Services Dept., Associate Dept. Head for Cloud Computing