diff --git a/etc/kayobe/kolla/globals.yml b/etc/kayobe/kolla/globals.yml
index f09b22f..9c769d3 100644
--- a/etc/kayobe/kolla/globals.yml
+++ b/etc/kayobe/kolla/globals.yml
@@ -7,3 +7,4 @@ nova_compute_virt_type: qemu
 # Reduce the control plane's memory footprint by limiting the number of worker
 # processes to one per-service.
 openstack_service_workers: "1"
+openstack_service_rpc_workers: "1"