AWS CloudWatch Metric Aggregations
- Overview
- How the Plain Metric Name Is Chosen
- Metrics by Namespace
AWS/AmazonMQAWS/ApiGatewayAWS/ApplicationELBAWS/AthenaAWS/AutoScalingAWS/CloudFrontAWS/DynamoDBAWS/EBSAWS/EC2AWS/ECSAWS/EFSAWS/ELBAWS/ESAWS/FirehoseAWS/FSxAWS/GlueAWS/KafkaAWS/KinesisAWS/LambdaAWS/NATGatewayAWS/NetworkELBAWS/RDSAWS/RedshiftAWS/Route53AWS/S3AWS/SNSAWS/SQSECS/ContainerInsights
- Extending the Defaults
AWS CloudWatch delivers each metric as a bundle of statistics in a single record: sum, count, minimum, and maximum, with average derived as sum / count.
Rather than keep every statistic for every metric, Kloudfuse takes an opinionated view of which one statistic best represents each metric.
This page lists those selections.
CloudWatch sends these metrics already aggregated — Kloudfuse never receives a raw metric stream to accumulate. Every metric on this page is therefore ingested as a gauge. The one exception is the _samplecount series, which is a counter.
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Overview
For every metric that Kloudfuse special-cases:
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One statistic is chosen as the main metric and is stored under the plain, suffix-less name.
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Any other statistics worth keeping are stored as separate series, with the aggregation appended as a suffix (for example,
_maximum). -
A metric that Kloudfuse does not special-case keeps only its CloudWatch
sum, stored under the plain name.
This means the plain metric name and a suffixed variant are not two views of the same number.
The plain name is whichever statistic is marked main.
For example, aws.ec2.cpuutilization is the average CPU utilization: because average is the main statistic, there is no separate _average series, and the maximum is published separately as aws.ec2.cpuutilization_maximum.
CloudWatch metrics reach Kloudfuse through the Metrics Stream and Kinesis Firehose path described in AWS CloudWatch Metrics Integration.
A metric that does not appear on this page keeps only its CloudWatch sum, stored under the plain name.
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How the Plain Metric Name Is Chosen
Kloudfuse stores the main statistic under the plain metric name and appends a suffix to every additional statistic it keeps. The suffix names are:
| CloudWatch statistic | Suffix on the series | Notes |
|---|---|---|
main (the chosen statistic) |
(none) |
Stored under the plain, suffix-less metric name. |
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Renamed for consistency. |
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Renamed for consistency. |
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Renamed for consistency. |
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Percentiles pass through; |
The raw CloudWatch metric name is normalized into the Kloudfuse metric name shown in the tables below:
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If Kloudfuse defines an explicit override for the metric, that name is used as-is. For example,
AllocatedStorageunderAWS/RDSbecomestotal_storage_space. -
Otherwise the name is converted to snake case as follows: a trailing
Countis dropped;-,.,, and%are removed; and an underscore is inserted between a lowercase letter and a following uppercase letter or digit. Consecutive capitals (acronyms) stay together, soCPUUtilizationbecomescpuutilizationwhileDatabaseConnectionsbecomesdatabase_connections.
The full metric name also carries the normalized namespace as a prefix, following the aws.<namespace>.<name> convention. For example, CPUUtilization under AWS/EC2 becomes aws.ec2.cpuutilization. See AWS CloudWatch Metrics Integration.
Metrics by Namespace
In the Metric column, the CloudWatch metric name is shown on top, with the Kloudfuse metric name in parentheses beneath it. The parenthesized name is what appears in the Metrics Explorer in the Kloudfuse UI, prefixed with the namespace — for example, CPUUtilization appears as aws.ec2.cpuutilization.
The remaining columns show the statistic stored under the plain (suffix-less) name and any additional suffixed series that are also emitted.
Jump to a service from the table of contents, or use your browser’s find (Ctrl+F / Cmd+F) to locate a metric.
sum (default) means Kloudfuse does not mark a main statistic, so the plain metric is the CloudWatch default sum.
The same metric name can map to a different statistic in a different namespace. For example, ReadLatency is the average under AWS/RDS but the sum under AWS/ES. Always match on the namespace as well as the metric name.
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AWS/AmazonMQ
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/ApiGateway
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/ApplicationELB
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/Athena
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/AutoScaling
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/CloudFront
| Metric (explorer name) | Main | Also emitted (suffixed) |
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AWS/DynamoDB
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/EBS
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/EC2
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/ECS
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/EFS
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/ELB
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/ES
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/Firehose
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/FSx
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/Glue
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/Kafka
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/Kinesis
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/Lambda
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/NATGateway
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/NetworkELB
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/RDS
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/Redshift
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/Route53
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/S3
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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AWS/SQS
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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ECS/ContainerInsights
| Metric (explorer name) | Main | Also emitted (suffixed) |
|---|---|---|
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Extending the Defaults
The selections on this page are Kloudfuse defaults. A deployment can extend them, either to keep additional statistics for a metric or to change which statistic is the main metric, through the additional CloudWatch aggregation settings in the Helm configuration. See AWS CloudWatch Metrics Integration for CloudWatch ingestion setup.