groups:
  - id: metric.faas.invoke_duration
    type: metric
    metric_name: faas.invoke_duration
    annotations:
      code_generation:
        metric_value_type: double
    stability: development
    brief: "Measures the duration of the function's logic execution."
    instrument: histogram
    unit: "s"
    attributes:
      - ref: faas.trigger

  - id: metric.faas.init_duration
    type: metric
    metric_name: faas.init_duration
    annotations:
      code_generation:
        metric_value_type: double
    stability: development
    brief: "Measures the duration of the function's initialization, such as a cold start."
    instrument: histogram
    unit: "s"
    attributes:
      - ref: faas.trigger

  - id: metric.faas.coldstarts
    type: metric
    metric_name: faas.coldstarts
    annotations:
      code_generation:
        metric_value_type: int
    stability: development
    brief: "Number of invocation cold starts."
    instrument: counter
    unit: "{coldstart}"
    attributes:
      - ref: faas.trigger

  - id: metric.faas.errors
    type: metric
    metric_name: faas.errors
    annotations:
      code_generation:
        metric_value_type: int
    stability: development
    brief: "Number of invocation errors."
    instrument: counter
    unit: "{error}"
    attributes:
      - ref: faas.trigger

  - id: metric.faas.invocations
    type: metric
    metric_name: faas.invocations
    annotations:
      code_generation:
        metric_value_type: int
    stability: development
    brief: "Number of successful invocations."
    instrument: counter
    unit: "{invocation}"
    attributes:
      - ref: faas.trigger

  - id: metric.faas.timeouts
    type: metric
    metric_name: faas.timeouts
    annotations:
      code_generation:
        metric_value_type: int
    stability: development
    brief: "Number of invocation timeouts."
    instrument: counter
    unit: "{timeout}"
    attributes:
      - ref: faas.trigger

  - id: metric.faas.mem_usage
    type: metric
    metric_name: faas.mem_usage
    annotations:
      code_generation:
        metric_value_type: int
    stability: development
    brief: "Distribution of max memory usage per invocation."
    instrument: histogram
    unit: "By"
    attributes:
      - ref: faas.trigger

  - id: metric.faas.cpu_usage
    type: metric
    metric_name: faas.cpu_usage
    annotations:
      code_generation:
        metric_value_type: double
    stability: development
    brief: "Distribution of CPU usage per invocation."
    instrument: histogram
    unit: "s"
    attributes:
      - ref: faas.trigger

  - id: metric.faas.net_io
    type: metric
    metric_name: faas.net_io
    annotations:
      code_generation:
        metric_value_type: int
    stability: development
    brief: "Distribution of net I/O usage per invocation."
    instrument: histogram
    unit: "By"
    attributes:
      - ref: faas.trigger