These instructions make use of the openstack-service command,
available from the openstack-utils package in RDO Havana (and RHOS 4). After install the appropriate repositories, you can upgrade to the latest version by running:
# yum install openstack-utils
To stop all the OpenStack services running on a host:
# openstack-service stop
To stop a specific suite of services (e.g., all Nova services) running on a host:
# openstack-service stop nova
Which on a Nova controller might result in:
Stopping openstack-nova-api: [ OK ]
Stopping openstack-nova-cert: [ OK ]
Stopping openstack-nova-conductor: [ OK ]
Stopping openstack-nova-consoleauth: [ OK ]
Stopping openstack-nova-scheduler: [ OK ]
To start all the OpenStack services running on a host:
# openstack-service start
To start a specific suite of services (e.g., all Nova services) running on a host:
# openstack-service stop nova
Which on a Nova controller might result in:
Starting openstack-nova-api: [ OK ]
Starting openstack-nova-cert: [ OK ]
Starting openstack-nova-conductor: [ OK ]
Starting openstack-nova-consoleauth: [ OK ]
Starting openstack-nova-scheduler: [ OK ]