Grafana Tempo is an open source, easy-to-use and high-scale distributed tracing
backend. Tempo is cost-efficient, requiring only object storage to operate, and
is deeply integrated with Grafana, Prometheus, and Loki.

Tempo is Jaeger, Zipkin, Kafka, OpenCensus and OpenTelemetry compatible. It
ingests batches in any of the mentioned formats, buffers them and then writes
them to Azure, GCS, S3 or local disk. As such, it is robust, cheap and easy to
operate!

Tempo implements TraceQL, a traces-first query language inspired by LogQL and
PromQL. This query language allows users to very precisely and easily select
spans and jump directly to the spans fulfilling the specified conditions