On 01/29/2018 06:48 PM, Mathieu Gagné wrote:
On Mon, Jan 29, 2018 at 8:47 AM, Jay Pipes <jaypi...@gmail.com> wrote:


What I believe we can do is change the behaviour so that if a 0.0 value is
found in the nova.conf file on the nova-compute worker, then instead of
defaulting to 16.0, the resource tracker would first look to see if the
compute node was associated with a host aggregate that had the
"cpu_allocation_ratio" a metadata item. If one was found, then the host
aggregate's cpu_allocation_ratio would be used. If not, then the 16.0
default would be used.

What do you think?

Best,
-jay


I don't mind this kind of fix.
I just want to make sure developers will be able to support it in the
future and not yank it out of frustration. =)
If a proper fix can be found later, I don't mind.
But I want to make sure I don't end up in a "broken" version where I
would need to skip 1-2 releases to get a working fix.

FYI, I've added both the "nova-compute doesn't overwrite the first host aggregate's allocation ratio with the 'default' values" thing as well as the CLI tool to modify batches of resource provider inventory allocation ratios at a time to the PTG agenda:

https://etherpad.openstack.org/p/nova-ptg-rocky

Best,
-jay

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