Hide Forgot
Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/host-metric-hook. Description: In large deployments, having each host periodically poll the hypervisor for instance statistics and emitting notifications would result in far too many notifications for something like Ceilometer to handle. It would be better if some logic could be pushed down into Nova via a plugin such that it could tap into the periodic_tasks that already frequently check host status. These plugins could look for anomolies and emit notifications only when set-points/limits are exceeded, thus reducing queue traffic. Specification URL (additional information): https://wiki.openstack.org/wiki/HypervisorMonitoringPlugin