DynamoDB - with Serverless
If a Lambda function processing DynamoDB Stream events fails, what is the default behavior in event-driven architecture?
If a Lambda function processing DynamoDB Stream events fails, what is the default behavior in event-driven architecture?
medium📝 query result Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand Lambda retry behavior
Lambda retries failed events multiple times by default before discarding.Step 2: Confirm event handling on failure
Events are retried to ensure processing, not deleted immediately.Final Answer:
The event is retried until successful or discarded after max retries -> Option AQuick Check:
Failed event retry = The event is retried until successful or discarded after max retries [OK]
Quick Trick: Failed events retry automatically [OK]
Common Mistakes:
MISTAKES- Thinking events are lost immediately on failure
- Assuming table locks on Lambda failure
- Believing Lambda auto-scales to fix errors
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