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On Tue, Dec 4, 2018 at 9:58 PM Chris Dent <cdent+os at anticdent.org> wrote:

>
> * The 'randomize_allocation_candidates' config setting is used by
>    the placement-api process (probably called nova-placement-api in
>    queens), not the nova-scheduler process, so you need to update the
>    config (in the placement section) for the former and restart it.
>
>
Thanks Chris.

I tried the same thing in the nova.conf of the nova_placement containers
and still no joy.

A check on a fresh deploy of Queens with just a couple of x86 compute nodes
proves that it can work without randomize_allocation_candidates being set
to True. Out of the box we get an even distribution of VMs across compute
nodes. It seems that somewhere along the path of adding Ironic and some
baremetal nodes and host aggregates and a PPC64LE node, the scheduling goes
awry.

Back to the drawing board, and the logs.

--
MC
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