Limitations

The OpenStack Telemetry plugin for Fuel has the following limitations:

Ceilometer API is not fully supported by default. The following Ceilometer commands are supported:
- By default:
  - ceilometer sample-list
  - ceilometer statistics
- If the Resource API is enabled:
  - ceilometer resource-list
  - ceilometer meter-list
- If the Event API is enabled:
  - ceilometer event-list
Ceilometer complex queries are not supported.
The Telemetry plugin does not store all the OpenStack resources metadata along with the Ceilometer Samples. The default list is as follows:

status
deleted
container_format
min_ram
updated_at
min_disk
is_public size
checksum
created_at disk_format
protected
instance_host
host
display_name
instance_id
instance_type
status
state
user_metadata.stack

To use the Ceilometer API requests based on metadata, add the required metadata as described in configure.
The coordination for Ceilometer central agent and Aodh alarm evaluator services is switched off if RabbitMQ is used. The Telemetry plugin is based on the Ceilometer used in Mirantis OpenStack. Therefore, the notification agents do not require coordination. The coordination through tooz with Zookeeper back end is supported if the Kafka plugin is installed.
The OpenStack Telemetry plugin cannot be used if the Redis plugin is already enabled in the environment.