The way Grafana queries Tempo changed from 7.4.x to 7.5.x. This document aims to explain the difference between the two and help you set up your datasources appropriately.
Grafana 7.5.x and higher (easy mode)
Grafana 7.5.x and higher can query Tempo directly. Point the Grafana data source at your Tempo query frontend (or monolithic mode Tempo) and enter the URL: http://<tempo hostname>:<http port number>. For most of our examples the following works.
Note that the port of 3200 is a common port used in our examples. Tempo default for http is 80.
Grafana 7.4.x
Grafana 7.4.x is not able to query Tempo directly and requires the tempo-query component as an intermediary. In this case you need to run Tempo-Query and direct it at Tempo proper. Check out the Grafana 7.4.x example to help with configuration.
The url entered will be http://<tempo-query hostname>:16686/.
Related Tempo resources
GrafanaCONline 2021
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In this session, we will use an instrumented application to demonstrate how to use logs and Prometheus exemplars to find traces effectively in Tempo. The demo will hit on the basics of operating Tempo and reveal how Tempo allows us to scale tracing as far as possible with less operational cost and complexity than ever before.
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