<div dir="ltr"><div>Hi,</div><div><br></div>It turns out that there is a 1:1 relationship between rpc_thread_pool_size messaging config [1] and the number of instances that can be spawned simultaneously. <div>Please see bug [2] for more details.<div>I think this should be at least documented. Thoughts?</div><div><br></div><div>Thanks,</div><div>Oleg<br><div><br></div>[1] <a href="https://github.com/openstack/oslo.messaging/blob/master/oslo/messaging/_executors/impl_eventlet.py">https://github.com/openstack/oslo.messaging/blob/master/oslo/messaging/_executors/impl_eventlet.py</a><br>[2] <a href="https://bugs.launchpad.net/neutron/+bug/1372049">https://bugs.launchpad.net/neutron/+bug/1372049</a></div></div></div>