[Solved] Find the bug in this Circuit Breaker pseudocode: if failureCount > threshold: callService() else: openCircuit() | Microservices

Microservices - Advanced Patterns

Find the bug in this Circuit Breaker pseudocode:

if failureCount > threshold:
  callService()
else:
  openCircuit()

AThe failureCount variable is not incremented

BThe logic is reversed; it should open circuit when failures exceed threshold

CThe callService() should be called only when circuit is open

DThe threshold comparison should use < instead of >

Step-by-Step Solution

Solution:

Step 1: Understand correct Circuit Breaker logic
Circuit opens when failureCount exceeds threshold to stop calls.
Step 2: Analyze given code logic
Code calls service when failures exceed threshold, which is reversed logic.
Final Answer:
The logic is reversed; it should open circuit when failures exceed threshold -> Option B
Quick Check:
Circuit Breaker logic reversal = The logic is reversed; it should open circuit when failures exceed threshold [OK]

Quick Trick: Open circuit when failures exceed threshold, not the opposite [OK]

Common Mistakes:

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