Using affinity/anti-affinity policies sometimes we get into a race
condition on the resources that are available on the hypervisors.
This flag allows to increase the number of retries and hence hosts
to schedule on and therefore allowing the successful scheduling
of instances.
This option was taken from the following URL, while future work
with placement is done to help with scheduling with affinity
https://docs.openstack.org/nova/latest/admin/troubleshooting/affinity-policy-violated.html
Signed-off-by: Arif Ali <arif.ali@canonical.com>
Change-Id: I353dbaa38eb0526014888ede27702b428eb66afd
cdaa255120