Circuit Breakers: How to Prevent Cascading Failures in Distributed Systems

Learn to implement the circuit breaker pattern so a failing dependency never drags down your whole system: the three states (closed, open, half-open), sliding failure windows, limited probes to avoid thundering herds, robust fallbacks, and how to combine it with timeouts, retries, and bulkheads. Includes distributed state in Redis, observability with Prometheus, pytest testing, circuit breaking in Envoy/Istio, a full case study, and production-ready code in Python and TypeScript.

36 minutes read

Josué Puig

2026-07-06

0 views

Verificando acceso...

Loading comments...

Related Resources

Guía

Database Indexing: Designing Indexes and Optimizing Queries in PostgreSQL

Learn to design indexes that genuinely speed up your queries: B-tree, composite, partial, and covering indexes. Includes how to read EXPLAIN ANALYZE, correct column ordering, the mistakes that silently disable an index, and what's new in PostgreSQL 18.

Guía

Idempotency in APIs: Designing Endpoints That Are Safe to Retry

Learn how idempotency keys turn unreliable networks into predictable APIs, so retries, timeouts, and double-clicks never create a duplicate payment or order. Covers server-side implementation, concurrency handling, what to cache, and common pitfalls.

Guía

PREMIUM

Keyset Pagination in PostgreSQL: Why OFFSET Doesn't Scale (and How to Fix It)

Learn why LIMIT/OFFSET pagination falls apart on large tables and how to replace it with keyset (cursor) pagination: tuple comparison, the right composite index, opaque cursors for your API, common pitfalls, and when to use each approach. Includes production-ready code in SQL and Python.