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Additional settings
The Additional settings section of the Tempo data source settings contains options that most users don’t need to change. These settings are collapsed by default.
Use the down arrow to expand the Additional settings section to view these options.
This page covers the following settings:
- Advanced HTTP settings: Configure cookie forwarding and request timeout
- Service graph: Link a Prometheus data source for Service Graph visualization
- Node graph: Enable the node graph above the trace view
- Tempo search: Show or hide the search option in Explore
- TraceID query: Narrow TraceID lookups to a time range for performance
- Tags time range: Control the time window for tag and tag-value queries
- Tag limit: Set the maximum number of tags retrieved from Tempo
- Span bar: Display duration or a custom tag in the span bar
- Private data source connect: Connect to data sources in private networks
Advanced HTTP settings
The Grafana Proxy deletes forwarded cookies. Use the Allowed cookies field to specify cookies by name that should be forwarded to the data source.
The Timeout field sets the HTTP request timeout in seconds.
Service graph
The Service graph setting configures the Service Graph data.
You must link a Prometheus data source in the Data source setting for the Service Graph to display data. Without this, Service Graph queries return empty results.
The linked Prometheus data source must contain metrics generated by Grafana Alloy or the Tempo metrics generator. For the full list of prerequisites and troubleshooting steps, refer to Service Graph and Service Graph view.
Note
If you cloned a provisioned data source (for example, the Grafana Cloud Traces data source) and the Service graph section doesn’t appear in the cloned data source’s settings, verify that the cloned data source has the same Tempo backend URL and authentication configured. The Service graph section only appears when the data source can connect to Tempo successfully. Refer to Clone a provisioned data source for Grafana Cloud for setup steps.
Node graph
The Node graph setting enables the node graph visualization, which isn’t activated by default.
After it’s activated, Grafana displays the node graph above the trace view.
Tempo search
The Search setting configures Tempo search.
You can configure the Hide search setting to hide the search query option in Explore if search is not configured in the Tempo instance.
TraceID query
The TraceID query setting modifies how TraceID queries are run. The time range can be used when there are performance issues or timeouts since it narrows down the search to the defined range. This setting is disabled by default.
You can configure this setting as follows:
Tags time range
The Tags time range feature controls how tag and tag-value queries are executed by specifying the time window applied to these requests. You can select one of the following options to constrain your queries:
Tag limit
The Tag limit setting modifies the max number of tags and tag values to retrieve from Tempo. Default: 5000
Span bar
The Span bar setting helps you display additional information in the span bar row.
You can choose one of three options:
Private data source connect
Note
This feature is only available in Grafana Cloud.
Use private data source connect (PDC) to connect to and query data within a secure network without opening that network to inbound traffic from Grafana Cloud.
Refer to Private data source connect for more information on how PDC works and Configure Grafana private data source connect (PDC) for steps on setting up a PDC connection.
Use the drop-down list to select a configured private data source. If you make changes, select Test & save to preserve your changes.
Use Manage private data source connect to configure and manage any private data sources you have configured.
Next steps
- Configure the Tempo data source: Return to connection, authentication, and streaming settings.
- Provision the Tempo data source: Configure the Tempo data source using a YAML file.
- Service Graph and Service Graph view: Visualize service dependencies and monitor RED metrics.
