2 posts tagged with "testing"

A joint debugging story with LiteLLM, and the release testing that comes next.

A LiteLLM version bump exposed a long-standing Redis configuration bug that cut Pfizer's gateway throughput by ~48%, with zero HTTP errors in the application logs. Here's how the team isolated it through configuration bisection, and the testing infrastructure both teams are building to catch this class of regression before it ships.

As LiteLLM adoption has grown, so have expectations around reliability, performance, and operational safety. Meeting those expectations requires more than correctness-focused tests, it requires validating how the system behaves over time, under real-world conditions.

This post introduces LiteLLM Observatory, a long-running release-validation system we built to catch regressions before they reach users.