Copyright	(c) 2013-2021 Brendan Hay
License	Mozilla Public License, v. 2.0.
Maintainer	Brendan Hay <brendan.g.hay+amazonka@gmail.com>
Stability	auto-generated
Portability	non-portable (GHC extensions)
Safe Haskell	None

Amazonka.EMR.Types.CloudWatchAlarmDefinition

Description

Synopsis

data CloudWatchAlarmDefinition = CloudWatchAlarmDefinition' {
- evaluationPeriods :: Maybe Int
- namespace :: Maybe Text
- dimensions :: Maybe [MetricDimension]
- unit :: Maybe Unit
- statistic :: Maybe Statistic
- comparisonOperator :: ComparisonOperator
- metricName :: Text
- period :: Int
- threshold :: Double
}
newCloudWatchAlarmDefinition :: ComparisonOperator -> Text -> Int -> Double -> CloudWatchAlarmDefinition
cloudWatchAlarmDefinition_evaluationPeriods :: Lens' CloudWatchAlarmDefinition (Maybe Int)
cloudWatchAlarmDefinition_namespace :: Lens' CloudWatchAlarmDefinition (Maybe Text)
cloudWatchAlarmDefinition_dimensions :: Lens' CloudWatchAlarmDefinition (Maybe [MetricDimension])
cloudWatchAlarmDefinition_unit :: Lens' CloudWatchAlarmDefinition (Maybe Unit)
cloudWatchAlarmDefinition_statistic :: Lens' CloudWatchAlarmDefinition (Maybe Statistic)
cloudWatchAlarmDefinition_comparisonOperator :: Lens' CloudWatchAlarmDefinition ComparisonOperator
cloudWatchAlarmDefinition_metricName :: Lens' CloudWatchAlarmDefinition Text
cloudWatchAlarmDefinition_period :: Lens' CloudWatchAlarmDefinition Int
cloudWatchAlarmDefinition_threshold :: Lens' CloudWatchAlarmDefinition Double

Documentation

data CloudWatchAlarmDefinition Source #

The definition of a CloudWatch metric alarm, which determines when an automatic scaling activity is triggered. When the defined alarm conditions are satisfied, scaling activity begins.

See: newCloudWatchAlarmDefinition smart constructor.

Constructors

CloudWatchAlarmDefinition'

Fields

evaluationPeriods :: Maybe Int
The number of periods, in five-minute increments, during which the alarm condition must exist before the alarm triggers automatic scaling activity. The default value is 1.
namespace :: Maybe Text
The namespace for the CloudWatch metric. The default is AWS/ElasticMapReduce.
dimensions :: Maybe [MetricDimension]
A CloudWatch metric dimension.
unit :: Maybe Unit
The unit of measure associated with the CloudWatch metric being watched. The value specified for Unit must correspond to the units specified in the CloudWatch metric.
statistic :: Maybe Statistic
The statistic to apply to the metric associated with the alarm. The default is AVERAGE.
comparisonOperator :: ComparisonOperator
Determines how the metric specified by MetricName is compared to the value specified by Threshold.
metricName :: Text
The name of the CloudWatch metric that is watched to determine an alarm condition.
period :: Int
The period, in seconds, over which the statistic is applied. EMR CloudWatch metrics are emitted every five minutes (300 seconds), so if an EMR CloudWatch metric is specified, specify 300.
threshold :: Double
The value against which the specified statistic is compared.

Instances

Instances details

Eq CloudWatchAlarmDefinition Source #
Instance details Defined in Amazonka.EMR.Types.CloudWatchAlarmDefinition Methods (==) :: CloudWatchAlarmDefinition -> CloudWatchAlarmDefinition -> Bool # (/=) :: CloudWatchAlarmDefinition -> CloudWatchAlarmDefinition -> Bool #
Read CloudWatchAlarmDefinition Source #
Instance details Defined in Amazonka.EMR.Types.CloudWatchAlarmDefinition Methods readsPrec :: Int -> ReadS CloudWatchAlarmDefinition # readList :: ReadS [CloudWatchAlarmDefinition] # readPrec :: ReadPrec CloudWatchAlarmDefinition # readListPrec :: ReadPrec [CloudWatchAlarmDefinition] #
Show CloudWatchAlarmDefinition Source #
Instance details Defined in Amazonka.EMR.Types.CloudWatchAlarmDefinition Methods showsPrec :: Int -> CloudWatchAlarmDefinition -> ShowS # show :: CloudWatchAlarmDefinition -> String # showList :: [CloudWatchAlarmDefinition] -> ShowS #
Generic CloudWatchAlarmDefinition Source #
Instance details Defined in Amazonka.EMR.Types.CloudWatchAlarmDefinition Associated Types type Rep CloudWatchAlarmDefinition :: Type -> Type # Methods from :: CloudWatchAlarmDefinition -> Rep CloudWatchAlarmDefinition x # to :: Rep CloudWatchAlarmDefinition x -> CloudWatchAlarmDefinition #
NFData CloudWatchAlarmDefinition Source #
Instance details Defined in Amazonka.EMR.Types.CloudWatchAlarmDefinition Methods rnf :: CloudWatchAlarmDefinition -> () #
Hashable CloudWatchAlarmDefinition Source #
Instance details Defined in Amazonka.EMR.Types.CloudWatchAlarmDefinition Methods hashWithSalt :: Int -> CloudWatchAlarmDefinition -> Int # hash :: CloudWatchAlarmDefinition -> Int #
ToJSON CloudWatchAlarmDefinition Source #
Instance details Defined in Amazonka.EMR.Types.CloudWatchAlarmDefinition Methods toJSON :: CloudWatchAlarmDefinition -> Value # toEncoding :: CloudWatchAlarmDefinition -> Encoding # toJSONList :: [CloudWatchAlarmDefinition] -> Value # toEncodingList :: [CloudWatchAlarmDefinition] -> Encoding #
FromJSON CloudWatchAlarmDefinition Source #
Instance details Defined in Amazonka.EMR.Types.CloudWatchAlarmDefinition Methods parseJSON :: Value -> Parser CloudWatchAlarmDefinition # parseJSONList :: Value -> Parser [CloudWatchAlarmDefinition] #
type Rep CloudWatchAlarmDefinition Source #
Instance details Defined in Amazonka.EMR.Types.CloudWatchAlarmDefinition type Rep CloudWatchAlarmDefinition = D1 ('MetaData "CloudWatchAlarmDefinition" "Amazonka.EMR.Types.CloudWatchAlarmDefinition" "libZSservicesZSamazonka-emrZSamazonka-emr" 'False) (C1 ('MetaCons "CloudWatchAlarmDefinition'" 'PrefixI 'True) (((S1 ('MetaSel ('Just "evaluationPeriods") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Int)) :: S1 ('MetaSel ('Just "namespace") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text))) :: (S1 ('MetaSel ('Just "dimensions") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe [MetricDimension])) :: S1 ('MetaSel ('Just "unit") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Unit)))) :: ((S1 ('MetaSel ('Just "statistic") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Statistic)) :: S1 ('MetaSel ('Just "comparisonOperator") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 ComparisonOperator)) :: (S1 ('MetaSel ('Just "metricName") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Text) :: (S1 ('MetaSel ('Just "period") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Int) :: S1 ('MetaSel ('Just "threshold") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Double))))))

newCloudWatchAlarmDefinition Source #

Arguments

:: ComparisonOperator	`$sel:comparisonOperator:CloudWatchAlarmDefinition'`
-> Text	`$sel:metricName:CloudWatchAlarmDefinition'`
-> Int	`$sel:period:CloudWatchAlarmDefinition'`
-> Double	`$sel:threshold:CloudWatchAlarmDefinition'`
-> CloudWatchAlarmDefinition

Create a value of CloudWatchAlarmDefinition with all optional fields omitted.

Use generic-lens or optics to modify other optional fields.

The following record fields are available, with the corresponding lenses provided for backwards compatibility:

$sel:evaluationPeriods:CloudWatchAlarmDefinition', cloudWatchAlarmDefinition_evaluationPeriods - The number of periods, in five-minute increments, during which the alarm condition must exist before the alarm triggers automatic scaling activity. The default value is 1.

$sel:namespace:CloudWatchAlarmDefinition', cloudWatchAlarmDefinition_namespace - The namespace for the CloudWatch metric. The default is AWS/ElasticMapReduce.

$sel:dimensions:CloudWatchAlarmDefinition', cloudWatchAlarmDefinition_dimensions - A CloudWatch metric dimension.

$sel:unit:CloudWatchAlarmDefinition', cloudWatchAlarmDefinition_unit - The unit of measure associated with the CloudWatch metric being watched. The value specified for Unit must correspond to the units specified in the CloudWatch metric.

$sel:statistic:CloudWatchAlarmDefinition', cloudWatchAlarmDefinition_statistic - The statistic to apply to the metric associated with the alarm. The default is AVERAGE.

$sel:comparisonOperator:CloudWatchAlarmDefinition', cloudWatchAlarmDefinition_comparisonOperator - Determines how the metric specified by MetricName is compared to the value specified by Threshold.

$sel:metricName:CloudWatchAlarmDefinition', cloudWatchAlarmDefinition_metricName - The name of the CloudWatch metric that is watched to determine an alarm condition.

$sel:period:CloudWatchAlarmDefinition', cloudWatchAlarmDefinition_period - The period, in seconds, over which the statistic is applied. EMR CloudWatch metrics are emitted every five minutes (300 seconds), so if an EMR CloudWatch metric is specified, specify 300.

$sel:threshold:CloudWatchAlarmDefinition', cloudWatchAlarmDefinition_threshold - The value against which the specified statistic is compared.

cloudWatchAlarmDefinition_evaluationPeriods :: Lens' CloudWatchAlarmDefinition (Maybe Int) Source #

The number of periods, in five-minute increments, during which the alarm condition must exist before the alarm triggers automatic scaling activity. The default value is 1.

cloudWatchAlarmDefinition_namespace :: Lens' CloudWatchAlarmDefinition (Maybe Text) Source #

The namespace for the CloudWatch metric. The default is AWS/ElasticMapReduce.

cloudWatchAlarmDefinition_dimensions :: Lens' CloudWatchAlarmDefinition (Maybe [MetricDimension]) Source #

A CloudWatch metric dimension.

cloudWatchAlarmDefinition_unit :: Lens' CloudWatchAlarmDefinition (Maybe Unit) Source #

The unit of measure associated with the CloudWatch metric being watched. The value specified for Unit must correspond to the units specified in the CloudWatch metric.

cloudWatchAlarmDefinition_statistic :: Lens' CloudWatchAlarmDefinition (Maybe Statistic) Source #

The statistic to apply to the metric associated with the alarm. The default is AVERAGE.

cloudWatchAlarmDefinition_comparisonOperator :: Lens' CloudWatchAlarmDefinition ComparisonOperator Source #

Determines how the metric specified by MetricName is compared to the value specified by Threshold.

cloudWatchAlarmDefinition_metricName :: Lens' CloudWatchAlarmDefinition Text Source #

The name of the CloudWatch metric that is watched to determine an alarm condition.

cloudWatchAlarmDefinition_period :: Lens' CloudWatchAlarmDefinition Int Source #

The period, in seconds, over which the statistic is applied. EMR CloudWatch metrics are emitted every five minutes (300 seconds), so if an EMR CloudWatch metric is specified, specify 300.

cloudWatchAlarmDefinition_threshold :: Lens' CloudWatchAlarmDefinition Double Source #

The value against which the specified statistic is compared.