a6-plugin-limit-req

Overview

The limit-req plugin rate-limits requests using the leaky bucket algorithm. Unlike limit-count (fixed window), it provides smooth traffic shaping by throttling burst requests with configurable delays. This prevents traffic spikes from overwhelming upstream services.

When to Use

• Smooth traffic to protect upstream from sudden spikes
• Enforce per-second QPS limits
• Throttle (delay) excess requests instead of rejecting them immediately
• Combine with limit-count for both per-second and per-hour limits

Plugin Configuration Reference

Core Fields