Comment 4 for bug 1744412

I think what makes sense is to try default values from oslo.db and see if they fix the issue. Specifically, set in neutron.conf:

[database]
pool_timeout=30
max_overflow=50
max_pool_size=5

If it doesn't help, we may need to look into better tweaks. Otherwise, we can assume that the setup is satisfied with neutron defaults that should kick in in Pike+ and hence no need for a change.

I also checked whether we had any related patches in puppet / tripleo and it doesn't seem like it.