[one-users] RANK=FREEMEMORY

[Steven Timm]

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

> 
> 
> On Thu, Oct 30, 2014 at 2:57 PM, Steven Timm <timm at fnal.gov> wrote:
>       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?
> 
> 
> 
> Yes, 
> 
>  
>
>       Any way short of a text editor and onetemplate update to
>       fix all the legacy templates that have it wrong?
> 
>  
> 
> All of this should be automatically handled by the upgrade process... 

It wasn't, the last time we tried a test upgrade using the
upgrade scripts.  There were a lot of deprecated fields that stayed
in the machine templates and some required ones that didn't get in.

Steve


> 
>
>       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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>                  
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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
> 
> 
> 
> 
> --
> 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