Viewing RDS Database Metrics

Prometheus collects metrics data on RDS instances via the CloudWatch Exporter.

The available metrics are listed here.

You can view any of these metrics as a graph using the Prometheus UI by writing it as an expression like this:

aws_rds_free_storage_space_average{dbinstance_identifier="<YOUR DATABASE IDENTIFIER>"}

Put your expression into the Expression text field, then click the Execute button and view the Graph tab.

Your database identifier is available from the kubernetes secret or configmap, which was created with your RDS instance. The string you want is the hostname part of your RDS instance address. So, if your RDS instance address is:

cloud-platform-ab10ab10ab10ab10.cdwm11111111.eu-west-2.rds.amazonaws.com

Then your database identifier for the Prometheus expression is:

cloud-platform-ab10ab10ab10ab10

And the full expression would be:

aws_rds_free_storage_space_average{dbinstance_identifier="cloud-platform-ab10ab10ab10ab10"}

You can use the various graph controls to adjust the time period and resolution of your graph.

This page was last reviewed on 16 April 2024. It needs to be reviewed again on 16 July 2024 by the page owner #cloud-platform .

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