Microservices - Event-Driven Architecture
In a microservice architecture using event sourcing, what happens if an event fails to be processed by a service?
In a microservice architecture using event sourcing, what happens if an event fails to be processed by a service?
medium📝 Analysis Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand failure handling in event sourcing
Failed events are usually retried or sent to a dead-letter queue for manual inspection.Step 2: Eliminate incorrect options
Events are not lost silently; services do not shut down immediately; synchronous processing is unrelated to failure handling.Final Answer:
The event is retried or sent to a dead-letter queue -> Option CQuick Check:
Failed events get retried or quarantined [OK]
Quick Trick: Failed events go to retry or dead-letter queue [OK]
Common Mistakes:
MISTAKES- Assuming events are lost on failure
- Thinking service crashes on event failure
- Confusing sync processing with failure handling
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