DynamoDB - Backup and Recovery
How can you handle a scenario where two regions update the same item simultaneously in a DynamoDB Global Table to avoid data loss?
How can you handle a scenario where two regions update the same item simultaneously in a DynamoDB Global Table to avoid data loss?
hard🚀 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand conflict resolution limits
DynamoDB uses last-writer-wins which can cause data loss if updates conflict.Step 2: Apply advanced handling
Application-level versioning and merge logic help preserve data by resolving conflicts intelligently.Final Answer:
Implement application-level versioning and merge logic -> Option DQuick Check:
Prevent data loss = app-level versioning [OK]
Quick Trick: Use app versioning to handle conflicts safely [OK]
Common Mistakes:
MISTAKES- Relying only on last-writer-wins
- Disabling replication unnecessarily
- Expecting synchronous replication in DynamoDB
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