Trace discovery in Grafana Tempo using Prometheus exemplars, Loki 2.0 queries, and more

Grafana Tempo, a distributed tracing backend, enhances trace discovery through integrations with data sources like Prometheus and Loki, and facilitates efficient trace retrieval by storing massive numbers of traces for access by ID. A live playground, TNS Demo, demonstrates Tempo's features in conjunction with Grafana, Loki, and Prometheus, showcasing improved query capabilities in Loki 2.0 and the use of exemplars for precise trace searches. The integration of log lines and exemplars allows users to directly access traces, even in the absence of native search support by Tempo, making trace discovery more seamless and powerful. Exemplars, though in development, promise to enhance this process further by linking trace data directly to metrics, and users are encouraged to engage with the community for updates and access to new features through Grafana Cloud.