# Monitoring MemoryDB events
<a name="monitoring-events"></a>

When significant events happen for a cluster, MemoryDB sends notification to a specific Amazon SNS topic. Examples include a failure to add a node, success in adding a node, the modification of a security group, and others. By monitoring for key events, you can know the current state of your clusters and, depending upon the event, be able to take corrective action.

**Topics**
+ [Managing MemoryDB Amazon SNS notifications](mdbevents.sns.md)
+ [Viewing MemoryDB events](mdbevents.viewing.md)
+ [Event Notifications and Amazon SNS](memorydbsns.md)