Amazon CloudWatch
User Guide

Amazon CloudWatch Events Metrics and Dimensions

CloudWatch Events sends metrics to Amazon CloudWatch every minute.

CloudWatch Events Metrics

The AWS/Events namespace includes the following metrics.

All of these metrics use Count as the unit, so Sum and SampleCount are the most useful statistics.

Metric Description

DeadLetterInvocations

Measures the number of times a rule’s target is not invoked in response to an event. This includes invocations that would result in triggering the same rule again, causing an infinite loop.

Valid Dimensions: RuleName

Units: Count

Invocations

Measures the number of times a target is invoked for a rule in response to an event. This includes successful and failed invocations, but does not include throttled or retried attempts until they fail permanently. It does not include DeadLetterInvocations.

Note

CloudWatch Events only sends this metric to CloudWatch if it has a non-zero value.

Valid Dimensions: RuleName

Units: Count

FailedInvocations

Measures the number of invocations that failed permanently. This does not include invocations that are retried, or that succeeded after a retry attempt. It also does not count failed invocations that are counted in DeadLetterInvocations.

Valid Dimensions: RuleName

Units: Count

TriggeredRules

Measures the number of triggered rules that matched with any event.

Valid Dimensions: RuleName

Units: Count

MatchedEvents

Measures the number of events that matched with any rule.

Valid Dimensions: None

Units: Count

ThrottledRules

Measures the number of triggered rules that are being throttled.

Valid Dimensions: RuleName

Units: Count

Dimensions for CloudWatch Events Metrics

CloudWatch Events metrics have one dimension, which is listed below.

Dimension Description
RuleName

Filters the available metrics by rule name.