Amazonka.EMR.Types.AutoScalingPolicy

Documentation

data AutoScalingPolicy

An automatic scaling policy for a core instance group or task instance group in an Amazon EMR cluster. An automatic scaling policy defines how an instance group dynamically adds and terminates EC2 instances in response to the value of a CloudWatch metric. See PutAutoScalingPolicy.

See: newAutoScalingPolicy smart constructor.

Constructors

AutoScalingPolicy'

Fields

• constraints :: ScalingConstraints

  The upper and lower EC2 instance limits for an automatic scaling policy. Automatic scaling activity will not cause an instance group to grow above or below these limits.

• rules :: [ScalingRule]

  The scale-in and scale-out rules that comprise the automatic scaling policy.

Instances

ToJSON AutoScalingPolicy

Defined in Amazonka.EMR.Types.AutoScalingPolicy

Methods

toJSON :: AutoScalingPolicy -> Value

toEncoding :: AutoScalingPolicy -> Encoding

toJSONList :: [AutoScalingPolicy] -> Value

toEncodingList :: [AutoScalingPolicy] -> Encoding

Generic AutoScalingPolicy

Defined in Amazonka.EMR.Types.AutoScalingPolicy

Associated Types

type Rep AutoScalingPolicy :: Type -> Type

Methods

from :: AutoScalingPolicy -> Rep AutoScalingPolicy x

to :: Rep AutoScalingPolicy x -> AutoScalingPolicy

Read AutoScalingPolicy

Defined in Amazonka.EMR.Types.AutoScalingPolicy

Methods

readsPrec :: Int -> ReadS AutoScalingPolicy

readList :: ReadS [AutoScalingPolicy]

readPrec :: ReadPrec AutoScalingPolicy

readListPrec :: ReadPrec [AutoScalingPolicy]

Show AutoScalingPolicy

Defined in Amazonka.EMR.Types.AutoScalingPolicy

Methods

showsPrec :: Int -> AutoScalingPolicy -> ShowS

show :: AutoScalingPolicy -> String

showList :: [AutoScalingPolicy] -> ShowS

NFData AutoScalingPolicy

Defined in Amazonka.EMR.Types.AutoScalingPolicy

Methods

rnf :: AutoScalingPolicy -> ()

Eq AutoScalingPolicy

Defined in Amazonka.EMR.Types.AutoScalingPolicy

Methods

(==) :: AutoScalingPolicy -> AutoScalingPolicy -> Bool

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

Hashable AutoScalingPolicy

Defined in Amazonka.EMR.Types.AutoScalingPolicy

Methods

hashWithSalt :: Int -> AutoScalingPolicy -> Int

hash :: AutoScalingPolicy -> Int

type Rep AutoScalingPolicy

Defined in Amazonka.EMR.Types.AutoScalingPolicy

type Rep AutoScalingPolicy = D1 ('MetaData "AutoScalingPolicy" "Amazonka.EMR.Types.AutoScalingPolicy" "amazonka-emr-2.0-B3cWhP6sdymF3IBUMdPGcd" 'False) (C1 ('MetaCons "AutoScalingPolicy'" 'PrefixI 'True) (S1 ('MetaSel ('Just "constraints") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 ScalingConstraints) :*: S1 ('MetaSel ('Just "rules") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 [ScalingRule])))

newAutoScalingPolicy

Arguments

:: ScalingConstraints

$sel:constraints:AutoScalingPolicy'

-> AutoScalingPolicy

Create a value of AutoScalingPolicy 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:constraints:AutoScalingPolicy', autoScalingPolicy_constraints - The upper and lower EC2 instance limits for an automatic scaling policy. Automatic scaling activity will not cause an instance group to grow above or below these limits.

$sel:rules:AutoScalingPolicy', autoScalingPolicy_rules - The scale-in and scale-out rules that comprise the automatic scaling policy.

autoScalingPolicy_constraints :: Lens' AutoScalingPolicy ScalingConstraints

The upper and lower EC2 instance limits for an automatic scaling policy. Automatic scaling activity will not cause an instance group to grow above or below these limits.

autoScalingPolicy_rules :: Lens' AutoScalingPolicy [ScalingRule]

The scale-in and scale-out rules that comprise the automatic scaling policy.