Amazonka.EMR.Types.SimpleScalingPolicyConfiguration

Documentation

data SimpleScalingPolicyConfiguration

An automatic scaling configuration, which describes how the policy adds or removes instances, the cooldown period, and the number of EC2 instances that will be added each time the CloudWatch metric alarm condition is satisfied.

See: newSimpleScalingPolicyConfiguration smart constructor.

Constructors

SimpleScalingPolicyConfiguration'

Fields

• adjustmentType :: Maybe AdjustmentType

  The way in which EC2 instances are added (if ScalingAdjustment is a positive number) or terminated (if ScalingAdjustment is a negative number) each time the scaling activity is triggered. CHANGE_IN_CAPACITY is the default. CHANGE_IN_CAPACITY indicates that the EC2 instance count increments or decrements by ScalingAdjustment, which should be expressed as an integer. PERCENT_CHANGE_IN_CAPACITY indicates the instance count increments or decrements by the percentage specified by ScalingAdjustment, which should be expressed as an integer. For example, 20 indicates an increase in 20% increments of cluster capacity. EXACT_CAPACITY indicates the scaling activity results in an instance group with the number of EC2 instances specified by ScalingAdjustment, which should be expressed as a positive integer.

• coolDown :: Maybe Int

  The amount of time, in seconds, after a scaling activity completes before any further trigger-related scaling activities can start. The default value is 0.

• scalingAdjustment :: Int

  The amount by which to scale in or scale out, based on the specified AdjustmentType. A positive value adds to the instance group's EC2 instance count while a negative number removes instances. If AdjustmentType is set to EXACT_CAPACITY, the number should only be a positive integer. If AdjustmentType is set to PERCENT_CHANGE_IN_CAPACITY, the value should express the percentage as an integer. For example, -20 indicates a decrease in 20% increments of cluster capacity.

Instances

FromJSON SimpleScalingPolicyConfiguration

Defined in Amazonka.EMR.Types.SimpleScalingPolicyConfiguration

Methods

parseJSON :: Value -> Parser SimpleScalingPolicyConfiguration

parseJSONList :: Value -> Parser [SimpleScalingPolicyConfiguration]

ToJSON SimpleScalingPolicyConfiguration

Defined in Amazonka.EMR.Types.SimpleScalingPolicyConfiguration

Methods

toJSON :: SimpleScalingPolicyConfiguration -> Value

toEncoding :: SimpleScalingPolicyConfiguration -> Encoding

toJSONList :: [SimpleScalingPolicyConfiguration] -> Value

toEncodingList :: [SimpleScalingPolicyConfiguration] -> Encoding

Generic SimpleScalingPolicyConfiguration

Defined in Amazonka.EMR.Types.SimpleScalingPolicyConfiguration

Associated Types

type Rep SimpleScalingPolicyConfiguration :: Type -> Type

Methods

from :: SimpleScalingPolicyConfiguration -> Rep SimpleScalingPolicyConfiguration x

to :: Rep SimpleScalingPolicyConfiguration x -> SimpleScalingPolicyConfiguration

Read SimpleScalingPolicyConfiguration

Defined in Amazonka.EMR.Types.SimpleScalingPolicyConfiguration

Methods

readsPrec :: Int -> ReadS SimpleScalingPolicyConfiguration

readList :: ReadS [SimpleScalingPolicyConfiguration]

readPrec :: ReadPrec SimpleScalingPolicyConfiguration

readListPrec :: ReadPrec [SimpleScalingPolicyConfiguration]

Show SimpleScalingPolicyConfiguration

Defined in Amazonka.EMR.Types.SimpleScalingPolicyConfiguration

Methods

showsPrec :: Int -> SimpleScalingPolicyConfiguration -> ShowS

show :: SimpleScalingPolicyConfiguration -> String

showList :: [SimpleScalingPolicyConfiguration] -> ShowS

NFData SimpleScalingPolicyConfiguration

Defined in Amazonka.EMR.Types.SimpleScalingPolicyConfiguration

Methods

rnf :: SimpleScalingPolicyConfiguration -> ()

Eq SimpleScalingPolicyConfiguration

Defined in Amazonka.EMR.Types.SimpleScalingPolicyConfiguration

Methods

(==) :: SimpleScalingPolicyConfiguration -> SimpleScalingPolicyConfiguration -> Bool

(/=) :: SimpleScalingPolicyConfiguration -> SimpleScalingPolicyConfiguration -> Bool

Hashable SimpleScalingPolicyConfiguration

Defined in Amazonka.EMR.Types.SimpleScalingPolicyConfiguration

Methods

hashWithSalt :: Int -> SimpleScalingPolicyConfiguration -> Int

hash :: SimpleScalingPolicyConfiguration -> Int

type Rep SimpleScalingPolicyConfiguration

Defined in Amazonka.EMR.Types.SimpleScalingPolicyConfiguration

type Rep SimpleScalingPolicyConfiguration = D1 ('MetaData "SimpleScalingPolicyConfiguration" "Amazonka.EMR.Types.SimpleScalingPolicyConfiguration" "amazonka-emr-2.0-B3cWhP6sdymF3IBUMdPGcd" 'False) (C1 ('MetaCons "SimpleScalingPolicyConfiguration'" 'PrefixI 'True) (S1 ('MetaSel ('Just "adjustmentType") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe AdjustmentType)) :*: (S1 ('MetaSel ('Just "coolDown") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Int)) :*: S1 ('MetaSel ('Just "scalingAdjustment") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Int))))

newSimpleScalingPolicyConfiguration

Arguments

:: Int

$sel:scalingAdjustment:SimpleScalingPolicyConfiguration'

-> SimpleScalingPolicyConfiguration

Create a value of SimpleScalingPolicyConfiguration 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:adjustmentType:SimpleScalingPolicyConfiguration', simpleScalingPolicyConfiguration_adjustmentType - The way in which EC2 instances are added (if ScalingAdjustment is a positive number) or terminated (if ScalingAdjustment is a negative number) each time the scaling activity is triggered. CHANGE_IN_CAPACITY is the default. CHANGE_IN_CAPACITY indicates that the EC2 instance count increments or decrements by ScalingAdjustment, which should be expressed as an integer. PERCENT_CHANGE_IN_CAPACITY indicates the instance count increments or decrements by the percentage specified by ScalingAdjustment, which should be expressed as an integer. For example, 20 indicates an increase in 20% increments of cluster capacity. EXACT_CAPACITY indicates the scaling activity results in an instance group with the number of EC2 instances specified by ScalingAdjustment, which should be expressed as a positive integer.

$sel:coolDown:SimpleScalingPolicyConfiguration', simpleScalingPolicyConfiguration_coolDown - The amount of time, in seconds, after a scaling activity completes before any further trigger-related scaling activities can start. The default value is 0.

$sel:scalingAdjustment:SimpleScalingPolicyConfiguration', simpleScalingPolicyConfiguration_scalingAdjustment - The amount by which to scale in or scale out, based on the specified AdjustmentType. A positive value adds to the instance group's EC2 instance count while a negative number removes instances. If AdjustmentType is set to EXACT_CAPACITY, the number should only be a positive integer. If AdjustmentType is set to PERCENT_CHANGE_IN_CAPACITY, the value should express the percentage as an integer. For example, -20 indicates a decrease in 20% increments of cluster capacity.

simpleScalingPolicyConfiguration_adjustmentType :: Lens' SimpleScalingPolicyConfiguration (Maybe AdjustmentType)

The way in which EC2 instances are added (if ScalingAdjustment is a positive number) or terminated (if ScalingAdjustment is a negative number) each time the scaling activity is triggered. CHANGE_IN_CAPACITY is the default. CHANGE_IN_CAPACITY indicates that the EC2 instance count increments or decrements by ScalingAdjustment, which should be expressed as an integer. PERCENT_CHANGE_IN_CAPACITY indicates the instance count increments or decrements by the percentage specified by ScalingAdjustment, which should be expressed as an integer. For example, 20 indicates an increase in 20% increments of cluster capacity. EXACT_CAPACITY indicates the scaling activity results in an instance group with the number of EC2 instances specified by ScalingAdjustment, which should be expressed as a positive integer.

simpleScalingPolicyConfiguration_coolDown :: Lens' SimpleScalingPolicyConfiguration (Maybe Int)

The amount of time, in seconds, after a scaling activity completes before any further trigger-related scaling activities can start. The default value is 0.

simpleScalingPolicyConfiguration_scalingAdjustment :: Lens' SimpleScalingPolicyConfiguration Int

The amount by which to scale in or scale out, based on the specified AdjustmentType. A positive value adds to the instance group's EC2 instance count while a negative number removes instances. If AdjustmentType is set to EXACT_CAPACITY, the number should only be a positive integer. If AdjustmentType is set to PERCENT_CHANGE_IN_CAPACITY, the value should express the percentage as an integer. For example, -20 indicates a decrease in 20% increments of cluster capacity.