docs/sources/datasources/tempo/configure-tempo-data-source/additional-settings.md
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:
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.
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.
{{< admonition type="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. {{< /admonition >}}
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.
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.
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:
| Name | Description |
|---|---|
| Use time range in query | Use a time range in the TraceID query. Default: disabled. |
| Time shift for start of search | Time shift for start of search. Default: 30m. |
| Time shift for end of search | Time shift for end of search. Default: 30m. |
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:
| Name | Description |
|---|---|
| Last 30 minutes | Last 30 minutes of selected range. |
| Last 3 hours | Last 3 hours of selected range. |
| Last 24 hours | Last 24 hours of selected range. |
| Last 3 days | Last 3 days of selected range. |
| Last 7 days | Last 7 days of selected range. |
The Tag limit setting modifies the max number of tags and tag values to retrieve from Tempo. Default: 5000
The Span bar setting helps you display additional information in the span bar row.
You can choose one of three options:
| Name | Description |
|---|---|
| None | Adds nothing to the span bar row. |
| Duration | (Default) Displays the span duration on the span bar row. |
| Tag | Displays the span tag on the span bar row. You must also specify which tag key to use to get the tag value, such as component. |
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