The measurements tracked for a resource. For example, an instance has a number of meters, such as duration of instance, CPU time used, number of disk io requests, etc. Three types of meters are defined in ceilometer:
[1] | http://en.wikipedia.org/wiki/Ceilometer |
[2] | https://opendev.org/openstack/oslo.messaging/src/branch/master/oslo_messaging/notify/notifier.py |
[3] | http://en.wikipedia.org/wiki/Non-repudiation |
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