Jaeger

Go microservices (agent/collector/query) that ingest OpenTelemetry/Jaeger-format spans and persist them to a pluggable backend — Cassandra or Elasticsearch for production scale, or in-memory/Badger for the all-in-one dev image.

Designed from the ground up for scale — collector and query tiers scale independently and stateless, with the storage backend (Cassandra/ES) doing the heavy lifting for write-heavy trace ingestion at internet scale. The all-in-one convenience image, by contrast, is single-node and not meant for production load.

All-in-one image works as a single pod for dev/testing; production deployments split into collector, query, and storage pods, with services addressed via <podName>.pod:<port>. Elasticsearch/Cassandra backend pods add real operational weight versus the single-binary dev mode.