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Service Graph and Service Graph view

The Service Graph is a visual representation of the relationships between services. Each node on the graph represents a service such as an API or database.

You use the Service Graph to detect performance issues; track increases in error, fault, or throttle rates in services; and investigate root causes by viewing corresponding traces.

Screenshot of a Node Graph
Screenshot of a Node Graph

Display the Service Graph

  1. Configure Grafana Agent or Tempo or GET to generate Service Graph data.
  2. Link a Prometheus data source in the Tempo data source’s Service Graph settings.
  3. Navigate to Explore.
  4. Select the Tempo data source.
  5. Select the Service Graph query type.
  6. Run the query.
  7. (Optional) Filter by service name.

For details, refer to Node Graph panel.

Each circle in the graph represents a service. To open a context menu with additional links for quick navigation to other relevant information, click a service.

Numbers inside the circles indicate the average time per request and requests per second.

Each circle’s color represents the percentage of requests in each state:

ColorState
GreenSuccess
RedFault
YellowErrors
PurpleThrottled responses

Open the Service Graph view

Service graph view displays a table of request rate, error rate, and duration metrics (RED) calculated from your incoming spans. It also includes a node graph view built from your spans.

Screenshot of the Service Graph view
Screenshot of the Service Graph view

For details, refer to the Service Graph view documentation.

To open the Service Graph view:

  1. Link a Prometheus data source in the Tempo data source settings.
  2. Navigate to Explore.
  3. Select the Tempo data source.
  4. Select the Service Graph query type.
  5. Run the query.
  6. (Optional) Filter your results.

Note

Grafana uses the traces_spanmetrics_calls_total metric to display the name, rate, and error rate columns, and traces_spanmetrics_latency_bucket to display the duration column. These metrics must exist in your Prometheus data source.

To open a query in Prometheus with the span name of that row automatically set in the query, click a row in the rate, error rate, or duration columns.

To open a query in Tempo with the span name of that row automatically set in the query, click a row in the links column.