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.AutoScalingPolicyDescription

Description

Documentation

data AutoScalingPolicyDescription Source #

An automatic scaling policy for a core instance group or task instance group in an Amazon EMR cluster. The 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: newAutoScalingPolicyDescription smart constructor.

Constructors

AutoScalingPolicyDescription'

Fields

status :: Maybe AutoScalingPolicyStatus
The status of an automatic scaling policy.
rules :: Maybe [ScalingRule]
The scale-in and scale-out rules that comprise the automatic scaling policy.
constraints :: Maybe 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.

Instances

Instances details

Eq AutoScalingPolicyDescription Source #
Instance details Defined in Amazonka.EMR.Types.AutoScalingPolicyDescription Methods (==) :: AutoScalingPolicyDescription -> AutoScalingPolicyDescription -> Bool # (/=) :: AutoScalingPolicyDescription -> AutoScalingPolicyDescription -> Bool #
Read AutoScalingPolicyDescription Source #
Instance details Defined in Amazonka.EMR.Types.AutoScalingPolicyDescription Methods readsPrec :: Int -> ReadS AutoScalingPolicyDescription # readList :: ReadS [AutoScalingPolicyDescription] # readPrec :: ReadPrec AutoScalingPolicyDescription # readListPrec :: ReadPrec [AutoScalingPolicyDescription] #
Show AutoScalingPolicyDescription Source #
Instance details Defined in Amazonka.EMR.Types.AutoScalingPolicyDescription Methods showsPrec :: Int -> AutoScalingPolicyDescription -> ShowS # show :: AutoScalingPolicyDescription -> String # showList :: [AutoScalingPolicyDescription] -> ShowS #
Generic AutoScalingPolicyDescription Source #
Instance details Defined in Amazonka.EMR.Types.AutoScalingPolicyDescription Associated Types type Rep AutoScalingPolicyDescription :: Type -> Type # Methods from :: AutoScalingPolicyDescription -> Rep AutoScalingPolicyDescription x # to :: Rep AutoScalingPolicyDescription x -> AutoScalingPolicyDescription #
NFData AutoScalingPolicyDescription Source #
Instance details Defined in Amazonka.EMR.Types.AutoScalingPolicyDescription Methods rnf :: AutoScalingPolicyDescription -> () #
Hashable AutoScalingPolicyDescription Source #
Instance details Defined in Amazonka.EMR.Types.AutoScalingPolicyDescription Methods hashWithSalt :: Int -> AutoScalingPolicyDescription -> Int # hash :: AutoScalingPolicyDescription -> Int #
FromJSON AutoScalingPolicyDescription Source #
Instance details Defined in Amazonka.EMR.Types.AutoScalingPolicyDescription Methods parseJSON :: Value -> Parser AutoScalingPolicyDescription # parseJSONList :: Value -> Parser [AutoScalingPolicyDescription] #
type Rep AutoScalingPolicyDescription Source #
Instance details Defined in Amazonka.EMR.Types.AutoScalingPolicyDescription type Rep AutoScalingPolicyDescription = D1 ('MetaData "AutoScalingPolicyDescription" "Amazonka.EMR.Types.AutoScalingPolicyDescription" "libZSservicesZSamazonka-emrZSamazonka-emr" 'False) (C1 ('MetaCons "AutoScalingPolicyDescription'" 'PrefixI 'True) (S1 ('MetaSel ('Just "status") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe AutoScalingPolicyStatus)) :: (S1 ('MetaSel ('Just "rules") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe [ScalingRule])) :: S1 ('MetaSel ('Just "constraints") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe ScalingConstraints)))))

newAutoScalingPolicyDescription :: AutoScalingPolicyDescription Source #

Create a value of AutoScalingPolicyDescription 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:status:AutoScalingPolicyDescription', autoScalingPolicyDescription_status - The status of an automatic scaling policy.

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

$sel:constraints:AutoScalingPolicyDescription', autoScalingPolicyDescription_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.

autoScalingPolicyDescription_status :: Lens' AutoScalingPolicyDescription (Maybe AutoScalingPolicyStatus) Source #

The status of an automatic scaling policy.

autoScalingPolicyDescription_rules :: Lens' AutoScalingPolicyDescription (Maybe [ScalingRule]) Source #

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

autoScalingPolicyDescription_constraints :: Lens' AutoScalingPolicyDescription (Maybe ScalingConstraints) Source #

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.