Scheduler sends VM to HV that lacks resources

Albert Braden Albert.Braden at
Wed Nov 13 19:30:15 UTC 2019

Removing these 3 obsolete filters appears to have fixed the problem. Thank you for your advice!

-----Original Message-----
From: Matt Riedemann <mriedemos at> 
Sent: Tuesday, November 12, 2019 1:14 PM
To: openstack-discuss at
Subject: Re: Scheduler sends VM to HV that lacks resources

On 11/12/2019 2:47 PM, Albert Braden wrote:
> It's probably a config error. Where should I be looking? This is our nova config on the controllers:

If your deployment is pike or newer (I'm guessing rocky because your 
other email says rocky), then you don't need these filters:

RetryFilter - alternate hosts bp in queens release makes this moot
CoreFilter - placement filters on VCPU
RamFilter - placement filters on MEMORY_MB




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