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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.