LLD - Design — Elevator System
Why is it important for an emergency handling system to implement circuit breakers when calling external services?
Why is it important for an emergency handling system to implement circuit breakers when calling external services?
hard🧠 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand circuit breaker purpose
Circuit breakers stop calls to external services that are failing to prevent system overload and cascading failures.Step 2: Evaluate other options
Increasing retries indefinitely worsens failures, logging is unrelated to circuit breaking, slowing processing is harmful.Final Answer:
To prevent cascading failures by stopping calls to failing services -> Option AQuick Check:
Circuit breaker purpose = Prevent cascading failures [OK]
Quick Trick: Circuit breakers stop calls to failing services [OK]
Common Mistakes:
MISTAKES- Confusing circuit breakers with logging or retries
- Thinking circuit breakers slow down processing intentionally
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