Monitoring AWS RDS
- Lets create an free tier rds instance
- AWS provides multiple ways of monitoring databases running on RDS.
- Basic monitoring is called as standard monitoring & if you want to opt for granular details, you can go for advanced monitoring.
- RDS sends all the information for these metrics to AWS CloudWatch which we can view using RDS console or AWS CloudWatch console
- Standard Monitoring:
- Using Standard Monitoring you can access 15 to 18 metrics depending on RDBMS Engine. The common ones are CPU Utilization, Storage, memory, swap usage, database connections, I/O, latency, throughput, replica lag and so on.
- Using standard monitoring you can get metrics at one-minute intervals
- Enhanced Monitoring:
- If you want granular metrics, the you can opt for enhanced monitoring.
- Using enhanced monitoring, you can access 37 more metrics in addition to standard monitoring, making a total of more than 50 metrics.
- You can also get the metrcis as low as one-secodnd interval.
- We can modify the existing database and enable enhanced monitoring or we can set this while creating rds
- Event Notifications:
- Using Event notifications in RDS, you can quickly get visibility into whats going on in your RDS instances.
- The event notifications allow you get notifications via AWS SNS when events occur in RDS.
- There are 17 different categories of events that you can choose from such as
- availability
- backup
- configuration change
- creation
- deletion
- failure
- failover
- maintenance
- recovery
- restoration
- …
- You can choose to get notified on the occurances of those events
- Modify any thing in your database
- Performance Insights:
- Performance Insights expands on existing RDS monitoring features to illustrate your databases performance & helps you manage any issues that impact it.
- With the Performance Insights dashboard, you can visualize the database load & filter the load by waits, SQL statements, hosts or users
