Amazonka.EMR.Types.InstanceGroup

Documentation

data InstanceGroup

This entity represents an instance group, which is a group of instances that have common purpose. For example, CORE instance group is used for HDFS.

See: newInstanceGroup smart constructor.

Constructors

InstanceGroup'

Fields

• autoScalingPolicy :: Maybe AutoScalingPolicyDescription

  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.

• bidPrice :: Maybe Text

  If specified, indicates that the instance group uses Spot Instances. This is the maximum price you are willing to pay for Spot Instances. Specify OnDemandPrice to set the amount equal to the On-Demand price, or specify an amount in USD.

• configurations :: Maybe [Configuration]

  Amazon EMR releases 4.x or later.

  The list of configurations supplied for an Amazon EMR cluster instance group. You can specify a separate configuration for each instance group (master, core, and task).

• configurationsVersion :: Maybe Integer

  The version number of the requested configuration specification for this instance group.

• customAmiId :: Maybe Text

  The custom AMI ID to use for the provisioned instance group.

• ebsBlockDevices :: Maybe [EbsBlockDevice]

  The EBS block devices that are mapped to this instance group.

• ebsOptimized :: Maybe Bool

  If the instance group is EBS-optimized. An Amazon EBS-optimized instance uses an optimized configuration stack and provides additional, dedicated capacity for Amazon EBS I/O.

• id :: Maybe Text

  The identifier of the instance group.

• instanceGroupType :: Maybe InstanceGroupType

  The type of the instance group. Valid values are MASTER, CORE or TASK.

• instanceType :: Maybe Text

  The EC2 instance type for all instances in the instance group.

• lastSuccessfullyAppliedConfigurations :: Maybe [Configuration]

  A list of configurations that were successfully applied for an instance group last time.

• lastSuccessfullyAppliedConfigurationsVersion :: Maybe Integer

  The version number of a configuration specification that was successfully applied for an instance group last time.

• market :: Maybe MarketType

  The marketplace to provision instances for this group. Valid values are ON_DEMAND or SPOT.

• name :: Maybe Text

  The name of the instance group.

• requestedInstanceCount :: Maybe Int

  The target number of instances for the instance group.

• runningInstanceCount :: Maybe Int

  The number of instances currently running in this instance group.

• shrinkPolicy :: Maybe ShrinkPolicy

  Policy for customizing shrink operations.

• status :: Maybe InstanceGroupStatus

  The current status of the instance group.

Instances

FromJSON InstanceGroup

Defined in Amazonka.EMR.Types.InstanceGroup

Methods

parseJSON :: Value -> Parser InstanceGroup

parseJSONList :: Value -> Parser [InstanceGroup]

Generic InstanceGroup

Defined in Amazonka.EMR.Types.InstanceGroup

Associated Types

type Rep InstanceGroup :: Type -> Type

Methods

from :: InstanceGroup -> Rep InstanceGroup x

to :: Rep InstanceGroup x -> InstanceGroup

Read InstanceGroup

Defined in Amazonka.EMR.Types.InstanceGroup

Methods

readsPrec :: Int -> ReadS InstanceGroup

readList :: ReadS [InstanceGroup]

readPrec :: ReadPrec InstanceGroup

readListPrec :: ReadPrec [InstanceGroup]

Show InstanceGroup

Defined in Amazonka.EMR.Types.InstanceGroup

Methods

showsPrec :: Int -> InstanceGroup -> ShowS

show :: InstanceGroup -> String

showList :: [InstanceGroup] -> ShowS

NFData InstanceGroup

Defined in Amazonka.EMR.Types.InstanceGroup

Methods

rnf :: InstanceGroup -> ()

Eq InstanceGroup

Defined in Amazonka.EMR.Types.InstanceGroup

Methods

(==) :: InstanceGroup -> InstanceGroup -> Bool

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

Hashable InstanceGroup

Defined in Amazonka.EMR.Types.InstanceGroup

Methods

hashWithSalt :: Int -> InstanceGroup -> Int

hash :: InstanceGroup -> Int

type Rep InstanceGroup

Defined in Amazonka.EMR.Types.InstanceGroup

type Rep InstanceGroup = D1 ('MetaData "InstanceGroup" "Amazonka.EMR.Types.InstanceGroup" "amazonka-emr-2.0-B3cWhP6sdymF3IBUMdPGcd" 'False) (C1 ('MetaCons "InstanceGroup'" 'PrefixI 'True) ((((S1 ('MetaSel ('Just "autoScalingPolicy") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe AutoScalingPolicyDescription)) :*: S1 ('MetaSel ('Just "bidPrice") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text))) :*: (S1 ('MetaSel ('Just "configurations") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe [Configuration])) :*: S1 ('MetaSel ('Just "configurationsVersion") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Integer)))) :*: ((S1 ('MetaSel ('Just "customAmiId") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :*: S1 ('MetaSel ('Just "ebsBlockDevices") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe [EbsBlockDevice]))) :*: (S1 ('MetaSel ('Just "ebsOptimized") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Bool)) :*: (S1 ('MetaSel ('Just "id") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :*: S1 ('MetaSel ('Just "instanceGroupType") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe InstanceGroupType)))))) :*: (((S1 ('MetaSel ('Just "instanceType") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :*: S1 ('MetaSel ('Just "lastSuccessfullyAppliedConfigurations") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe [Configuration]))) :*: (S1 ('MetaSel ('Just "lastSuccessfullyAppliedConfigurationsVersion") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Integer)) :*: S1 ('MetaSel ('Just "market") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe MarketType)))) :*: ((S1 ('MetaSel ('Just "name") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :*: S1 ('MetaSel ('Just "requestedInstanceCount") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Int))) :*: (S1 ('MetaSel ('Just "runningInstanceCount") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Int)) :*: (S1 ('MetaSel ('Just "shrinkPolicy") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe ShrinkPolicy)) :*: S1 ('MetaSel ('Just "status") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe InstanceGroupStatus))))))))

newInstanceGroup :: InstanceGroup

Create a value of InstanceGroup 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:autoScalingPolicy:InstanceGroup', instanceGroup_autoScalingPolicy - 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.

$sel:bidPrice:InstanceGroup', instanceGroup_bidPrice - If specified, indicates that the instance group uses Spot Instances. This is the maximum price you are willing to pay for Spot Instances. Specify OnDemandPrice to set the amount equal to the On-Demand price, or specify an amount in USD.

InstanceGroup, instanceGroup_configurations - Amazon EMR releases 4.x or later.

The list of configurations supplied for an Amazon EMR cluster instance group. You can specify a separate configuration for each instance group (master, core, and task).

$sel:configurationsVersion:InstanceGroup', instanceGroup_configurationsVersion - The version number of the requested configuration specification for this instance group.

$sel:customAmiId:InstanceGroup', instanceGroup_customAmiId - The custom AMI ID to use for the provisioned instance group.

$sel:ebsBlockDevices:InstanceGroup', instanceGroup_ebsBlockDevices - The EBS block devices that are mapped to this instance group.

$sel:ebsOptimized:InstanceGroup', instanceGroup_ebsOptimized - If the instance group is EBS-optimized. An Amazon EBS-optimized instance uses an optimized configuration stack and provides additional, dedicated capacity for Amazon EBS I/O.

$sel:id:InstanceGroup', instanceGroup_id - The identifier of the instance group.

$sel:instanceGroupType:InstanceGroup', instanceGroup_instanceGroupType - The type of the instance group. Valid values are MASTER, CORE or TASK.

$sel:instanceType:InstanceGroup', instanceGroup_instanceType - The EC2 instance type for all instances in the instance group.

$sel:lastSuccessfullyAppliedConfigurations:InstanceGroup', instanceGroup_lastSuccessfullyAppliedConfigurations - A list of configurations that were successfully applied for an instance group last time.

$sel:lastSuccessfullyAppliedConfigurationsVersion:InstanceGroup', instanceGroup_lastSuccessfullyAppliedConfigurationsVersion - The version number of a configuration specification that was successfully applied for an instance group last time.

$sel:market:InstanceGroup', instanceGroup_market - The marketplace to provision instances for this group. Valid values are ON_DEMAND or SPOT.

$sel:name:InstanceGroup', instanceGroup_name - The name of the instance group.

$sel:requestedInstanceCount:InstanceGroup', instanceGroup_requestedInstanceCount - The target number of instances for the instance group.

$sel:runningInstanceCount:InstanceGroup', instanceGroup_runningInstanceCount - The number of instances currently running in this instance group.

$sel:shrinkPolicy:InstanceGroup', instanceGroup_shrinkPolicy - Policy for customizing shrink operations.

InstanceGroup, instanceGroup_status - The current status of the instance group.

instanceGroup_autoScalingPolicy :: Lens' InstanceGroup (Maybe AutoScalingPolicyDescription)

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.

instanceGroup_bidPrice :: Lens' InstanceGroup (Maybe Text)

If specified, indicates that the instance group uses Spot Instances. This is the maximum price you are willing to pay for Spot Instances. Specify OnDemandPrice to set the amount equal to the On-Demand price, or specify an amount in USD.

instanceGroup_configurations :: Lens' InstanceGroup (Maybe [Configuration])

Amazon EMR releases 4.x or later.

The list of configurations supplied for an Amazon EMR cluster instance group. You can specify a separate configuration for each instance group (master, core, and task).

instanceGroup_configurationsVersion :: Lens' InstanceGroup (Maybe Integer)

The version number of the requested configuration specification for this instance group.

instanceGroup_customAmiId :: Lens' InstanceGroup (Maybe Text)

The custom AMI ID to use for the provisioned instance group.

instanceGroup_ebsBlockDevices :: Lens' InstanceGroup (Maybe [EbsBlockDevice])

The EBS block devices that are mapped to this instance group.

instanceGroup_ebsOptimized :: Lens' InstanceGroup (Maybe Bool)

If the instance group is EBS-optimized. An Amazon EBS-optimized instance uses an optimized configuration stack and provides additional, dedicated capacity for Amazon EBS I/O.

instanceGroup_id :: Lens' InstanceGroup (Maybe Text)

The identifier of the instance group.

instanceGroup_instanceGroupType :: Lens' InstanceGroup (Maybe InstanceGroupType)

The type of the instance group. Valid values are MASTER, CORE or TASK.

instanceGroup_instanceType :: Lens' InstanceGroup (Maybe Text)

The EC2 instance type for all instances in the instance group.

instanceGroup_lastSuccessfullyAppliedConfigurations :: Lens' InstanceGroup (Maybe [Configuration])

A list of configurations that were successfully applied for an instance group last time.

instanceGroup_lastSuccessfullyAppliedConfigurationsVersion :: Lens' InstanceGroup (Maybe Integer)

The version number of a configuration specification that was successfully applied for an instance group last time.

instanceGroup_market :: Lens' InstanceGroup (Maybe MarketType)

The marketplace to provision instances for this group. Valid values are ON_DEMAND or SPOT.

instanceGroup_name :: Lens' InstanceGroup (Maybe Text)

The name of the instance group.

instanceGroup_requestedInstanceCount :: Lens' InstanceGroup (Maybe Int)

The target number of instances for the instance group.

instanceGroup_runningInstanceCount :: Lens' InstanceGroup (Maybe Int)

The number of instances currently running in this instance group.

instanceGroup_shrinkPolicy :: Lens' InstanceGroup (Maybe ShrinkPolicy)

Policy for customizing shrink operations.

instanceGroup_status :: Lens' InstanceGroup (Maybe InstanceGroupStatus)

The current status of the instance group.