[Openstack] oversubscribe node

Steve Heistand steve.heistand at nasa.gov
Wed Aug 21 22:45:08 UTC 2013


that would probably have been useful info yes :)

latest grizzly on ubuntu 12.04 and 

compute_scheduler_driver=nova.scheduler.simple.SimpleScheduler
scheduler_default_filters=AggregateInstanceExtraSpecsFilter,AvailabilityZoneFilter,RamFilter,ComputeFilter


On 08/21/2013 03:40 PM, James R Penick wrote:
> Which scheduler are you using? Also, which version of Openstack?
> 
> :)=
> 
> 
> 
> 
> 
> 
> On 8/21/13 2:56 PM, "Steve Heistand" <steve.heistand at nasa.gov> wrote:
> 
>> Hi folks,
>>
>> so  Im a little confused, on my compute nodes I have the allocation ratio
>> set:
>>
>> root at node004:~# cat /etc/nova/nova-compute.conf
>> [DEFAULT]
>> ..
>> cpu_allocation_ratio=1.0
>> ram_allocation_ratio=1.0
>> ...
>>
>> but I got into a state where the node is oversubscribed.  From nova
>> hypervisor-show node004:
>>
>> node004
>> ..
>> vcpus_used              36
>> memory_mb_used  72837
>> memory_mb            64379
>> vcpus                       32
>> ..
>>
>> I have zones/aggregates set up and of the instances, one was started in
>> just launch it anywhere mode and another was told to start on
>> a zone that is this node.
>>
>> In looking back I would have expected the zone specified instance be
>> rejected.
>>
>> is this to be expected or a bug?
>>
>> thanks
>>
>> s
>>
>>
>> -- 
>> ************************************************************************
>> Steve Heistand                           NASA Ames Research Center
>> SciCon Group                             Mail Stop 258-6
>> steve.heistand at nasa.gov  (650) 604-4369  Moffett Field, CA 94035-1000
>> ************************************************************************
>> "Any opinions expressed are those of our alien overlords, not my own."
>>
>> # For Remedy                        #
>> #Action: Resolve                    #
>> #Resolution: Resolved               #
>> #Reason: No Further Action Required #
>> #Tier1: User Code                   #
>> #Tier2: Other                       #
>> #Tier3: Assistance                  #
>> #Notification: None                 #
>>
>>
> 

-- 
************************************************************************
 Steve Heistand                           NASA Ames Research Center
 SciCon Group                             Mail Stop 258-6
 steve.heistand at nasa.gov  (650) 604-4369  Moffett Field, CA 94035-1000
************************************************************************
 "Any opinions expressed are those of our alien overlords, not my own."

# For Remedy                        #
#Action: Resolve                    #
#Resolution: Resolved               #
#Reason: No Further Action Required #
#Tier1: User Code                   #
#Tier2: Other                       #
#Tier3: Assistance                  #
#Notification: None                 #


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