distributed-systems

# Distributed Systems Patterns Comprehensive patterns for building reliable distributed systems. Each category has individual rule files in `rules/` loaded on-demand. ## Quick Reference | Category | Rules | Impact | When to Use | |----------|-------|--------|-------------| | [Distributed Locks](#distributed-locks) | 1 | CRITICAL | Fencing tokens, owner validation; Redis/Redlock and Postgres advisory via upstream docs | | [Resilience](#resilience) | 3 | CRITICAL | Circuit breakers, retry with backoff, bulkhead isolation | | [Idempotency](#idempotency) | 1 | HIGH | Idempotency keys; dedup and database-backed storage via upstream docs | | [Rate Limiting](#rate-limiting) | 2 | HIGH | Token bucket, sliding window; SlowAPI integration via upstream docs | | [Edge Computing](#edge-computing) | 2 | HIGH | Edge workers, V8 isolates, CDN caching, geo-routing | | [Event-Driven](#event-driven) | 2 | HIGH | Event sourcing, CQRS, transactional outbox, sagas | **Total: 11 rules across 6 categories.** Removed topics point at first-party sources in [Upstream coverage](#upstream-coverage-do-not-restate); ork-specific scars live in `references/ork-delta.md`. ## Quick Start ```python # Redis distributed lock with Lua scripts async with RedisLock(redis_client, "payment:order-123"): await process_payment(order_id) # Circuit breaker for external APIs @circuit_breaker(failure_threshold=5, recovery_timeout=30) @retry(max_attempts=3, base_delay=1.0) async def call_external_api(): ... # ...