InfoQ - Microservices - News

Uforwarder: Uber’s Scalable Kafka Consumer Proxy for Efficient Event-Driven Microservices

Leela Kumili — Mon, 23 Feb 2026 15:00:00 GMT

Uber has open-sourced uForwarder, a push-based Kafka consumer proxy built to handle trillions of messages and multiple petabytes of data daily. The system introduces context-aware routing, head-of-line blocking mitigation, adaptive auto-rebalancing, and partition-level delay processing to improve scalability, workload isolation, and hardware efficiency in large-scale event-driven microservices.

By Leela Kumili

Reducing Onboarding from 48 Hours to 4: inside Amazon Key’s Event-Driven Platform

Leela Kumili — Thu, 19 Feb 2026 15:00:00 GMT

Amazon Key modernized its event platform by adopting a centralized, event-driven architecture built on Amazon EventBridge. The redesign processes millions of daily events with millisecond latency, improves schema governance, automates cross-account routing, and reduces service onboarding time from 48 hours to four, while maintaining 99.99 percent reliability.

By Leela Kumili

Uber and OpenAI Retool Rate Limiting Systems

Patrick Farry — Tue, 17 Feb 2026 23:02:00 GMT

Uber and OpenAI are replacing static rate limits with adaptive, infrastructure-level platforms. Uber’s Global Rate Limiter utilizes probabilistic shedding to manage 80M RPS, while OpenAI’s Access Engine implements a credit waterfall to prevent user interruptions. Both architectures utilize distributed enforcement and soft controls to maintain system stability and service continuity at scale.

By Patrick Farry