-deliver_queue_load_max = <%= scope.lookupvar('::processorcount').to_i * 5 %>
-queue_only_load = <%= scope.lookupvar('::processorcount').to_i * 4 %>
+<%- if scope.lookupvar('::processorcount').to_s != 'undefined' -%>
+deliver_queue_load_max = <%= [scope.lookupvar('::processorcount').to_i,2].max * 5 %>
+queue_only_load = <%= [scope.lookupvar('::processorcount').to_i,2].max * 4 %>
+<%- else -%>
+deliver_queue_load_max = 10
+queue_only_load = 8
+<%- end -%>