AWS - RDS and Relational Databases
You created a read replica but notice it is not receiving updates from the source database. What is a likely cause?
You created a read replica but notice it is not receiving updates from the source database. What is a likely cause?
medium📝 Debug Q14 of 15
Step-by-Step Solution
Solution:
Step 1: Understand replication requirements
Read replicas require the source database to have automated backups enabled to support replication.Step 2: Analyze the cause of no updates
If automated backups are off, replication cannot start, so the replica won't receive updates.Final Answer:
The source database is not configured for automated backups -> Option DQuick Check:
Automated backups must be enabled for replication [OK]
Quick Trick: Check if automated backups are enabled on source [OK]
Common Mistakes:
- Assuming region mismatch always blocks replication
- Confusing multi-AZ with read replica settings
- Thinking no write traffic stops replication
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