--- upgrade: - With expirer deprecated and disabled by default, there is an upgrade impact here. If you had expirer enabled in ocata and you upgrade to pike the expirer will not be enabled anymore. If you wish to use expirer, ensure you include the ceilometer-expirer.yaml to your upgrade deploy command. Also note that with collector disabled, there is no need for expirer to be running. deprecations: - Deprecate and turn off expirer service as collector. Without collector and standard storage, expirer has no use.