I am using Immutable deployment.
I have included script as mentioned at http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/mon-scripts.html to monitor ec2 memory at autoscale level.
Now while every deployment for temporary autoscale cloudwatch metric is created.
How do I delete them when temporary autoscale is deleted?
Or how do I delete cloudwatch metrics created while deployment.
This is because my metric list will increase on every deployment.
It is not possible to delete metrics from Amazon CloudWatch. Metrics will eventually rotate out.
Yes, this will increase the list of metrics, but typically AWS users would ask for a specific filter of metrics, so it doesn't matter how many different metrics are actually being stored by CloudWatch.
From the CloudWatch FAQs:
- Data points with a period of less than 60 seconds are available for 3 hours. These data points are high-resolution custom metrics.
- Data points with a period of 60 seconds (1 minute) are available for 15 days
- Data points with a period of 300 seconds (5 minute) are available for 63 days
- Data points with a period of 3600 seconds (1 hour) are available for 455 days (15 months)
Data points that are initially published with a shorter period are aggregated together for long-term storage. For example, if you collect data using a period of 1 minute, the data remains available for 15 days with 1-minute resolution. After 15 days this data is still available, but is aggregated and is retrievable only with a resolution of 5 minutes. After 63 days, the data is further aggregated and is available with a resolution of 1 hour. If you need availability of metrics longer than these periods, you can use the GetMetricStatistics API to retrieve the datapoints for offline or different storage.