Does AWS RDS offer a metric for monitoring the memory utilization? I see one metric called freeable_memory which is how much available memory an instance has. I'd like to create an alert when the memory usage reaches a certain percetage of the total memory but can't seem to find a metric which supports that, similar to cpuutilization. I also found a metric called acuutilization in datadog but haven't been able to find what that metric tracks.

CodePudding user response：

Take a look at enhanced monitoring. Enhanced Monitoring has a metric called Active Memory:

The amount of assigned memory, in kilobytes.

Sounds to me like something that could be useful for you. But be aware that you also get additional costs: https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_Monitoring.OS.overview.html#USER_Monitoring.OS.cost