# Grafana Tempo configuration for xrpld telemetry stack.
#
# Runs in single-binary mode for local development.
# Receives traces via OTLP/gRPC from the OTel Collector and stores
# them locally. Queryable via Grafana Explore using the Tempo datasource.
#
# Search filters are configured on the Grafana datasource side
# (grafana/provisioning/datasources/tempo.yaml). Tempo auto-indexes
# all span attributes for search in single-binary mode.
#
# For production, replace local storage with S3/GCS backend and adjust
# retention via the compactor settings. See:
# https://grafana.com/docs/tempo/latest/configuration/

stream_over_http_enabled: true

server:
  http_listen_port: 3200

# Raise the TraceQL metrics query range limit. The default
# query_frontend.metrics.max_duration is 3h, so a dashboard set to a longer
# window (e.g. 6h/12h) fails with "range exceeds 3h0m0s". 168h matches the
# search max_duration and gives dashboards generous headroom.
query_frontend:
  metrics:
    max_duration: 168h

distributor:
  receivers:
    otlp:
      protocols:
        grpc:
          endpoint: 0.0.0.0:4317

ingester:
  max_block_duration: 5m

compactor:
  compaction:
    block_retention: 1h

# Enable metrics generator for service graph, span metrics, and the
# local-blocks processor. Produces RED metrics (rate, errors, duration) per
# service/span for the service map, and keeps recent trace blocks queryable so
# TraceQL metrics queries (quantile_over_time, count_over_time, etc. via
# /api/metrics/query_range) work.
metrics_generator:
  registry:
    external_labels:
      source: tempo
  storage:
    path: /var/tempo/generator/wal
    # Uncomment and add a Prometheus service to docker-compose.yml
    # to enable remote_write for service graph metrics:
    # remote_write:
    #   - url: http://prometheus:9090/api/v1/write
  # Separate WAL the local-blocks processor flushes traces to for metrics
  # queries. Required when flush_to_storage is true.
  traces_storage:
    path: /var/tempo/generator/traces
  processor:
    local_blocks:
      # xrpld consensus/transaction spans are SPAN_KIND_INTERNAL. By default
      # local-blocks keeps only server spans for TraceQL metrics, so attribute
      # aggregations over internal spans return nothing. Keep all spans.
      filter_server_spans: false
      # Flush recent blocks to traces_storage so query_range can read them.
      flush_to_storage: true

overrides:
  defaults:
    metrics_generator:
      processors:
        - service-graphs
        - span-metrics
        - local-blocks

storage:
  trace:
    backend: local
    wal:
      path: /var/tempo/wal
    local:
      path: /var/tempo/blocks