Rate Limiting as Resource Protection¶

Shared resources require admission control; rate limiting protects system stability by bounding demand, converting resource exhaustion failures into predictable, recoverable rejections.

Tension Addressed¶

Flexibility vs. Simplicity

Recognizable As¶

Quota headers, 429 responses, exponential backoff requirements, tiered rate limits, burst allowances, rate limit documentation

Canonical Sources¶

Leaky bucket and token bucket algorithms; "Release It!" - Nygard (2007)

Transfers To¶

Operating system resource limits, Database connection pools, Network traffic shaping, Circuit breakers, Any shared resource management

Rate limiting is not just an API concern - it's a manifestation of the fundamental principle that shared resources require explicit capacity management. The alternative is unpredictable failure under load.