Description of problem:
[stack@director-a ~]$ openstack overcloud deploy --templates --control-scale 1 --compute-scale 1 --ceph-storage-scale 0 --block-storage-scale 0 --swift-storage-scale 0 --neutron-network-type vlan --neutron-disable-tunneling --neutron-public-interface eth1 --hypervisor-neutron-public-interface eth1 -e /usr/share/openstack-tripleo-heat-templates/overcloud-resource-registry-puppet.yaml -e /home/stack/templates/networking-cisco-environment.yaml
Deploying templates in the directory /usr/share/openstack-tripleo-heat-templates
ERROR: openstack ERROR: Remote error: Error Error retrieving image list from glance: HTTPInternalServerError (HTTP 500)

 {"error": {"message": "An unexpected error prevented the server from fulfilling your request: (_mysql_exceptions.OperationalError) (1040, 'Too many connections') (Disable debug mode to suppress these details.)", "code": 500, "title": "Internal Server Error"}}

openstack-status
== Nova services ==
openstack-nova-api:                     active
openstack-nova-cert:                    inactive  (disabled on boot)
openstack-nova-compute:                 active
openstack-nova-network:                 inactive  (disabled on boot)
openstack-nova-scheduler:               active
openstack-nova-conductor:               active
== Glance services ==
openstack-glance-api:                   active
openstack-glance-registry:              active
== Keystone service ==
openstack-keystone:                     active
== Horizon service ==
openstack-dashboard:                    active
== neutron services ==
neutron-server:                         active
neutron-dhcp-agent:                     active
neutron-l3-agent:                       inactive  (disabled on boot)
neutron-metadata-agent:                 inactive  (disabled on boot)
neutron-openvswitch-agent:              active
== Swift services ==
openstack-swift-proxy:                  active
openstack-swift-account:                active
openstack-swift-container:              active
openstack-swift-object:                 active
== Ceilometer services ==
openstack-ceilometer-api:               active
openstack-ceilometer-central:           active
openstack-ceilometer-compute:           inactive  (disabled on boot)
openstack-ceilometer-collector:         active
openstack-ceilometer-alarm-notifier:    active
openstack-ceilometer-alarm-evaluator:   active
openstack-ceilometer-notification:      active
== Heat services ==
openstack-heat-api:                     active
openstack-heat-api-cfn:                 active
openstack-heat-api-cloudwatch:          active
openstack-heat-engine:                  active
== Support services ==
mysqld:                                 inactive  (disabled on boot)
openvswitch:                            active
dbus:                                   active
rabbitmq-server:                        active
memcached:                              active


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