cmg_exporter

cmg_exporter

Prometheus Exporter for colocation PDUs

This exporter is tailor-made for tracking power consumption of colocated servers at the Mechanical Engineering Campus of Leibniz University Hannover.

Method of Operation

⚠️ This software is experimental: While its purpose is clear, usage may change substantially until a stable release.

At the moment this service provides power and energy statistics for Rittal PDU-Controller, PDU-Man and Bachmann BlueNet2 PDUs. Rittal LCP support coming soon.

Statistics reported

To avoid confusion keep in mind:

...a kilowatt is a unit of power but a kilowatt-hour (1 kilowatt times 1 hour) is a unit of energy.

More information can be found at the Website for Energy Education.

Energy

The total wattage drawn through the PDU in its service time, in kWh.

Power

The current wattage being drawn through the PDU.

Example

$ curl 'http://pdu-exporter:1812/metrics?target=10.42.42.42'
pdu_total_energy{rack="s12"} 16554.4
pdu_total_power{rack="s12"} 707

Installation

Add the following to prometheus.yml:

scrape_configs:
  - job_name: "pdu_export"
    static_configs:
      - targets:
        - 10.42.42.40 # List of targets to monitor.
        - 10.42.42.41
        - 10.42.42.42
        - 10.42.42.43
        - 10.42.42.44
        - 10.42.42.45
        # etc.
      relabel_configs:
        - source_labels: [__address__]
          target_label: __param_target
        - source_labels: [__param_target]
          target_label: instance
        - target_label: __address__
          replacement: pdu-exporter:1812 # The SNMP exporter's real hostname:port.
      metric_relabel_configs:
      - source_labels: [rack]
        regex: s01 # The PDU Exporter gathers Rack number from the hostname.
        target_label: institute
        replacement: IMES # This can be used to assign entities to a rack via RegEx
      - source_labels: [rack]
        regex: s(02|12|21)
        target_label: institute
        replacement: IDS/IKM