LimitationsΒΆ

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 plugin.

  • 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.