Cloudwatch alarm math expression. If you are using a monitoring account in CloudWatch cross-account observability, your search expressions can find metrics in the source accounts linked to that monitoring account. Metric math enables you to query multiple CloudWatch metrics and use math expressions to create new time series based on these metrics. Any actions associated with the new state are then executed. A math expression built with metric (s) emitted by a service. This means that acc The AWS::CloudWatch::Alarm type specifies an alarm and associates it with the specified metric or metric math expression. Jan 10, 2024 ยท I want to use the following MathExpression to create a CloudWatch alarm based on (expression is somewhat simplified): IF(6 >= HOUR(TIME_SERIES(1)) && HOUR(TIME_SERIES(1)) <= 23, 1, 0) In the AWS console, I can add this expression and see how the metric emits 1 during the night and 0 during the day (06:00 - 23:00), so this part seems to work. This enables you to create alarms based on the results of calculations rather than individual metrics alone. You can visualize the resulting time series on the CloudWatch console and add them to dashboards. Also checkout this: Creating a CloudWatch alarm based on a search expression This is because search expressions return multiple time series, and an alarm based on a math expression can watch only one time series. The alarm performs one or more actions based on the value of the metric or expression relative to a threshold over a number of time periods. i7msej 1ftlk pan gq2qn dihzqs oijeq zo ws7 f4e0 ujgiv