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Amazon RDS Monitors (Whats New)

Amazon RDS monitors the replication status of your Read Replicas and updates the Replication State field to Error if replication stops for any reason (e.g., running DML queries on your replica that conflict with the updates made on the master database instance could result in a replication error). You can review the details of the associated error thrown by the MySQL engine by viewing the Replication Error field and take an appropriate action to recover from it.  If a replication error is fixed, the Replication State changes to Replicating.

 Amazon RDS Event Notifications automatically get notified when you encounter a replication error. Separately, you can also monitor the Replication Lag metric and set up a CloudWatch alarm to receive a notification when the lag crosses a particular threshold tolerable by your application.

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