Ceilometer
Ceilometer is another optional module that can be installed in the OpenStack environment. This is a telemetry system, and its function is to collect the usage statistics from different components of OpenStack and to store and warn when the data breaches certain thresholds. The output can be used for billing, auditing, and capacity planning purposes, and whatever your need may be. It is a good idea to run a Ceilometer service in the OpenStack environment only if we need metering data for billing purposes. If we need to just perform capacity planning in a private cloud without any need to bill downstream users, then we can ignore this component.
Please note that this system does not provide billing information, and an external billing ...
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