diff --git a/defaults/main.yml b/defaults/main.yml
index 17bd5745..1cb2faf2 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -154,7 +154,8 @@ ironic_service_user_name: "ironic"
 
 # Apache settings
 ironic_wsgi_threads: 1
-ironic_wsgi_processes: "{{ ansible_processor_vcpus | default (1) * 2 }}"
+_ironic_wsgi_processes: "{{ ansible_processor_vcpus | default(1) // 4 }}"
+ironic_wsgi_processes: "{{ (_ironic_wsgi_processes | int > 1) | ternary(_ironic_wsgi_processes, 1) }}"
 
 ### OpenStack Services to integrate with
 
diff --git a/templates/ironic.conf.j2 b/templates/ironic.conf.j2
index 44a302f5..57ebf111 100644
--- a/templates/ironic.conf.j2
+++ b/templates/ironic.conf.j2
@@ -1893,7 +1893,7 @@ rabbit_virtual_host={{ ironic_rabbitmq_vhost }}
 
 # Maximum number of connections to keep queued. (integer
 # value)
-#pool_max_size=10
+pool_max_size = {{ ironic_wsgi_processes }}
 
 # Maximum number of connections to create above
 # `pool_max_size`. (integer value)