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menu_book Course Curriculum (System Design) expand_more

Requirements & Capacity

functional requirements non-functional requirements traffic estimation storage estimation bandwidth estimation latency budget availability target read/write ratio

Scaling & Distribution

vertical scaling horizontal scaling load balancing consistent hashing stateless services service discovery partitioning/sharding replication

Caching & Data

cache-aside write-through cache write-back cache cache invalidation database indexing read replicas CQRS event sourcing

Messaging & Async

message queue publish-subscribe dead-letter queue retry with backoff idempotent consumer outbox pattern stream processing saga orchestration

Reliability

health checks circuit breaker bulkhead isolation timeouts rate limiting graceful degradation multi-region failover disaster recovery RPO/RTO

Interfaces & Observability

API gateway service-to-service authentication distributed tracing structured logging metrics and SLOs correlation IDs backpressure schema evolution

System Design / Reliability

circuit breaker

Learn circuit breaker in System Design with a dedicated explanation, a concept-specific example, practical cautions, and a mastery check.

12 min read • Advanced

system-design-034.yaml

yaml

circuit_breaker:
  service: recommendations
  failure_threshold: 5
  open_for_seconds: 30
  half_open_requests: 2
fallback: empty_recommendation_list

What to watch

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

circuit breaker Mastery Check →

bulkhead isolation