ASE
June 25, 2024, 11:02pm
1
Good afternoon.
We are in the process of migrating Amazon RDS from Classic Services to Cloud Services in Dynatrace.
Based on the documentation I read, the built-in RDS alerts shown below will not be available once we migrate.
Because of this, I’m working on re-creating these alerts using the new Cloud Services Metrics.
However, I’m stuck trying to duplicate the “Detect RDS running out of memory” alert.
How do I combine the “Freeable Memory” metric with the “Swap Usage” metric in my Metric Event?
If I’m reading this correctly, both conditions need to exist in order to trigger this alert.
ASE
June 28, 2024, 4:00am
2
What about the RDS Free Storage Space % metric?
The % metric is not available in Amazon RDS Cloud Services. It’s using the number of Bytes.
Classic Services
Cloud Services
I suspect we could use a Metric Expression to calculate the Free Storage Space %, but how is that possible if we are not ingesting an “allocated storage” metric from Amazon RDS?
Any recommendations on how to recreate this Classic alert using the Cloud metrics?
ASE
July 3, 2024, 7:25pm
3
Solution:
This is what we used to build the Cloud Services version of this Classic “built-in” RDS running out of memory alert:
ext:cloud.aws.rds.freeableMemory:splitBy("dt.entity.custom_device"):filter(series(avg,lt(100000000))):count:default(0, always)
+
ext:cloud.aws.rds.swapUsage:splitBy("dt.entity.custom_device"):filter(series(avg,gt(1000000000))):count:default(0, always)
