Microservices - Real-World Architecture Case Studies
A bug causes the Dispatch Service to assign multiple drivers to the same ride request. What is the best way to fix this issue?
A bug causes the Dispatch Service to assign multiple drivers to the same ride request. What is the best way to fix this issue?
medium📝 Analysis Q7 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the Problem
Multiple drivers assigned means race condition or concurrency issue in Dispatch Service.Step 2: Choose Correct Fix
Distributed locking prevents simultaneous assignments for the same ride.Final Answer:
Implement a distributed lock to ensure one assignment per ride -> Option BQuick Check:
Prevent race condition with distributed lock [OK]
Quick Trick: Use distributed lock to avoid duplicate assignments [OK]
Common Mistakes:
- Increasing drivers won't fix assignment bug
- Disabling Notification unrelated
- Payment retries irrelevant here
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