diff --git a/metadata/service/control/cluster.yml b/metadata/service/control/cluster.yml
index 4753725..e296c90 100644
--- a/metadata/service/control/cluster.yml
+++ b/metadata/service/control/cluster.yml
@@ -28,6 +28,7 @@
         name: neutron
         user: neutron
         password: ${_param:mysql_neutron_password}
+        max_overflow: 70
       identity:
         engine: keystone
         region: RegionOne
@@ -55,6 +56,7 @@
         user: openstack
         password: ${_param:rabbitmq_openstack_password}
         virtual_host: '/openstack'
+        executor_thread_pool_size: 70
       compute:
         host: ${_param:cluster_vip_address}
         region: RegionOne