config.yaml

# default configuration
spanmetrics/default:

# default configuration with explicit buckets histogram
spanmetrics/default_explicit_histogram:
  histogram:
    explicit:

# configuration with all possible parameters
spanmetrics/full:
  histogram:
    unit: "s"
    explicit:
      buckets: [ 10ms, 100ms, 250ms ]
  exemplars:
    enabled: true
  dimensions_cache_size: 1500
  resource_metrics_cache_size: 1600

  # Additional list of dimensions on top of:
  # - service.name
  # - span.name
  # - span.kind
  # - status.code
  dimensions:
    # If the span is missing http.method, the connector will insert
    # the http.method dimension with value 'GET'.
    - name: http.method
      default: GET

    # If a default is not provided, the http.status_code dimension will be omitted
    # if the span does not contain http.status_code.
    - name: http.status_code

  # The aggregation temporality of the generated metrics.
  # Default: "AGGREGATION_TEMPORALITY_CUMULATIVE"
  aggregation_temporality: "AGGREGATION_TEMPORALITY_DELTA"

  # The period on which all metrics (whose dimension keys remain in cache) will be emitted.
  # Default: 60s.
  metrics_flush_interval: 30s

# default configuration with exponential buckets histogram
spanmetrics/exponential_histogram:
  histogram:
    exponential:
      max_size: 10

# invalid histogram configuration
spanmetrics/exponential_and_explicit_histogram:
  histogram:
    exponential:
      max_size: 10
    explicit:
      buckets: [ 10ms, 100ms, 250ms ]

spanmetrics/invalid_histogram_unit:
  histogram:
    unit: "h"

spanmetrics/invalid_metrics_expiration:
  metrics_expiration: -20s

# exemplars enabled 
spanmetrics/exemplars_enabled:
  exemplars:
    enabled: true

# exemplars enabled with max per datapoint configured
spanmetrics/exemplars_enabled_with_max_per_datapoint:
  exemplars:
    enabled: true
    max_per_data_point: 5

# resource metrics key attributes filter
spanmetrics/resource_metrics_key_attributes:
  resource_metrics_key_attributes:
    - service.name
    - telemetry.sdk.language
    - telemetry.sdk.name

spanmetrics/custom_delta_timestamp_cache_size:
  aggregation_temporality: "AGGREGATION_TEMPORALITY_DELTA"
  metric_timestamp_cache_size: 123

spanmetrics/invalid_delta_timestamp_cache_size:
  aggregation_temporality: "AGGREGATION_TEMPORALITY_DELTA"
  metric_timestamp_cache_size: 0

spanmetrics/default_delta_timestamp_cache_size:
  aggregation_temporality: "AGGREGATION_TEMPORALITY_DELTA"