Expedia Group has deployed STAR, an internal observability platform leveraging LLMs to analyze service telemetry and assist engineers during production incidents. The solution is built on FastAPI, Datadog, Celery, Redis, and Langfuse, following structured workflows to generate root cause assessments. It is designed to keep engineers in the loop while speeding up the investigation process.
- STAR uses LLMs to analyze telemetry and propose root causes for incidents.
- The stack combines FastAPI, Datadog, Celery, Redis, and Langfuse.
- Engineers remain in the loop for validation and response actions.
- Structured workflows ensure consistent incident investigation processes.