Interface CfnScalingPolicy.MetricDataQueryProperty
- All Superinterfaces:
software.amazon.jsii.JsiiSerializable
- All Known Implementing Classes:
CfnScalingPolicy.MetricDataQueryProperty.Jsii$Proxy
- Enclosing class:
CfnScalingPolicy
Also defines whether this call is returning data for one metric only, or whether it is performing a math expression on the values of returned metric statistics to create a new time series. A time series is a series of data points, each of which is associated with a timestamp.
MetricDataQuery
is a property of the following property types:
- AWS::AutoScaling::ScalingPolicy PredictiveScalingCustomizedScalingMetric
- AWS::AutoScaling::ScalingPolicy PredictiveScalingCustomizedLoadMetric
- AWS::AutoScaling::ScalingPolicy PredictiveScalingCustomizedCapacityMetric
Predictive scaling uses the time series data received from CloudWatch to understand how to schedule capacity based on your historical workload patterns.
You can call for a single metric or perform math expressions on multiple metrics. Any expressions used in a metric specification must eventually return a single time series.
For more information and examples, see Advanced predictive scaling policy configurations using custom metrics in the Amazon EC2 Auto Scaling User Guide .
Example:
// The code below shows an example of how to instantiate this type. // The values are placeholders you should change. import software.amazon.awscdk.services.autoscaling.*; MetricDataQueryProperty metricDataQueryProperty = MetricDataQueryProperty.builder() .id("id") // the properties below are optional .expression("expression") .label("label") .metricStat(MetricStatProperty.builder() .metric(MetricProperty.builder() .metricName("metricName") .namespace("namespace") // the properties below are optional .dimensions(List.of(MetricDimensionProperty.builder() .name("name") .value("value") .build())) .build()) .stat("stat") // the properties below are optional .unit("unit") .build()) .returnData(false) .build();
- See Also:
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Nested Class Summary
Modifier and TypeInterfaceDescriptionstatic final class
A builder forCfnScalingPolicy.MetricDataQueryProperty
static final class
An implementation forCfnScalingPolicy.MetricDataQueryProperty
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Method Summary
Modifier and TypeMethodDescriptionbuilder()
default String
The math expression to perform on the returned data, if this object is performing a math expression.getId()
A short name that identifies the object's results in the response.default String
getLabel()
A human-readable label for this metric or expression.default Object
Information about the metric data to return.default Object
Indicates whether to return the timestamps and raw data values of this metric.Methods inherited from interface software.amazon.jsii.JsiiSerializable
$jsii$toJson
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Method Details
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getId
A short name that identifies the object's results in the response.This name must be unique among all
MetricDataQuery
objects specified for a single scaling policy. If you are performing math expressions on this set of data, this name represents that data and can serve as a variable in the mathematical expression. The valid characters are letters, numbers, and underscores. The first character must be a lowercase letter.- See Also:
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getExpression
The math expression to perform on the returned data, if this object is performing a math expression.This expression can use the
Id
of the other metrics to refer to those metrics, and can also use theId
of other expressions to use the result of those expressions.Conditional: Within each
MetricDataQuery
object, you must specify eitherExpression
orMetricStat
, but not both.- See Also:
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getLabel
A human-readable label for this metric or expression.This is especially useful if this is a math expression, so that you know what the value represents.
- See Also:
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getMetricStat
Information about the metric data to return.Conditional: Within each
MetricDataQuery
object, you must specify eitherExpression
orMetricStat
, but not both.- See Also:
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getReturnData
Indicates whether to return the timestamps and raw data values of this metric.If you use any math expressions, specify
true
for this value for only the final math expression that the metric specification is based on. You must specifyfalse
forReturnData
for all the other metrics and expressions used in the metric specification.If you are only retrieving metrics and not performing any math expressions, do not specify anything for
ReturnData
. This sets it to its default (true
).- See Also:
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builder
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