CloudWatch Metrics can be ingested in two ways:
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AWS CloudWatch Metric Streams (push)
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Metrics streams use the Kinesis Firehose and are cheaper per metric Data Point per Minute (DPM) but less adjustable, so the total cost is generally larger.
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Amazon CloudWatch metrics are produced by default at a 5-minute interval. You can enable detailed monitoring to collect metrics at 1-minute intervals.
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Observe provides a default recommended.yaml as an exclude list. All other metrics will be collected by default.
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CloudWatch API calls using the Observe Forwarder Lambda to poll metrics (pull)
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API calls are 3 times more expensive per DPM but you can collect less often to reduce AWS costs.
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The Observe Forwarder Lambda can also use
filtersto poll less metrics to reduce AWS costs.
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To configure pull AWS Metrics from the AWS Quickstart app screen:
To configure push AWS Metrics collection:
Summary:
CloudWatch Metrics are cheaper per metric Data Point per Minute (DPM) but less adjustable, so the total cost can be larger. CloudWatch Metrics default to 5 minutes and detailed is 1 minute intervals. The API calls are 3 times more expensive per DPM but you can collect less often to reduce AWS costs.

