@Generated(value="software.amazon.awssdk:codegen") public final class InstanceGroup extends Object implements StructuredPojo, ToCopyableBuilder<InstanceGroup.Builder,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.
Modifier and Type | Class and Description |
---|---|
static interface |
InstanceGroup.Builder |
Modifier and Type | Method and Description |
---|---|
AutoScalingPolicyDescription |
autoScalingPolicy()
An automatic scaling policy for a core instance group or task instance group in an Amazon EMR cluster.
|
String |
bidPrice()
The bid price for each EC2 instance in the instance group when launching nodes as Spot Instances, expressed in
USD.
|
static InstanceGroup.Builder |
builder() |
List<Configuration> |
configurations()
|
List<EbsBlockDevice> |
ebsBlockDevices()
The EBS block devices that are mapped to this instance group.
|
Boolean |
ebsOptimized()
If the instance group is EBS-optimized.
|
boolean |
equals(Object obj) |
<T> Optional<T> |
getValueForField(String fieldName,
Class<T> clazz) |
int |
hashCode() |
String |
id()
The identifier of the instance group.
|
InstanceGroupType |
instanceGroupType()
The type of the instance group.
|
String |
instanceGroupTypeAsString()
The type of the instance group.
|
String |
instanceType()
The EC2 instance type for all instances in the instance group.
|
MarketType |
market()
The marketplace to provision instances for this group.
|
String |
marketAsString()
The marketplace to provision instances for this group.
|
void |
marshall(ProtocolMarshaller protocolMarshaller)
Marshalls this structured data using the given
ProtocolMarshaller . |
String |
name()
The name of the instance group.
|
Integer |
requestedInstanceCount()
The target number of instances for the instance group.
|
Integer |
runningInstanceCount()
The number of instances currently running in this instance group.
|
static Class<? extends InstanceGroup.Builder> |
serializableBuilderClass() |
ShrinkPolicy |
shrinkPolicy()
Policy for customizing shrink operations.
|
InstanceGroupStatus |
status()
The current status of the instance group.
|
InstanceGroup.Builder |
toBuilder()
Take this object and create a builder that contains all of the current property values of this object.
|
String |
toString() |
copy
public String id()
The identifier of the instance group.
public String name()
The name of the instance group.
public MarketType market()
The marketplace to provision instances for this group. Valid values are ON_DEMAND or SPOT.
If the service returns an enum value that is not available in the current SDK version, market
will
return MarketType.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available from
marketAsString()
.
MarketType
public String marketAsString()
The marketplace to provision instances for this group. Valid values are ON_DEMAND or SPOT.
If the service returns an enum value that is not available in the current SDK version, market
will
return MarketType.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available from
marketAsString()
.
MarketType
public InstanceGroupType instanceGroupType()
The type of the instance group. Valid values are MASTER, CORE or TASK.
If the service returns an enum value that is not available in the current SDK version, instanceGroupType
will return InstanceGroupType.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available
from instanceGroupTypeAsString()
.
InstanceGroupType
public String instanceGroupTypeAsString()
The type of the instance group. Valid values are MASTER, CORE or TASK.
If the service returns an enum value that is not available in the current SDK version, instanceGroupType
will return InstanceGroupType.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available
from instanceGroupTypeAsString()
.
InstanceGroupType
public String bidPrice()
The bid price for each EC2 instance in the instance group when launching nodes as Spot Instances, expressed in USD.
public String instanceType()
The EC2 instance type for all instances in the instance group.
public Integer requestedInstanceCount()
The target number of instances for the instance group.
public Integer runningInstanceCount()
The number of instances currently running in this instance group.
public InstanceGroupStatus status()
The current status of the instance group.
public List<Configuration> configurations()
Amazon EMR releases 4.x or later.
The list of configurations supplied for an EMR cluster instance group. You can specify a separate configuration for each instance group (master, core, and task).
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
Amazon EMR releases 4.x or later.
The list of configurations supplied for an EMR cluster instance group. You can specify a separate configuration for each instance group (master, core, and task).
public List<EbsBlockDevice> ebsBlockDevices()
The EBS block devices that are mapped to this instance group.
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
public Boolean 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.
public ShrinkPolicy shrinkPolicy()
Policy for customizing shrink operations.
public AutoScalingPolicyDescription 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.
public InstanceGroup.Builder toBuilder()
ToCopyableBuilder
toBuilder
in interface ToCopyableBuilder<InstanceGroup.Builder,InstanceGroup>
public static InstanceGroup.Builder builder()
public static Class<? extends InstanceGroup.Builder> serializableBuilderClass()
public void marshall(ProtocolMarshaller protocolMarshaller)
StructuredPojo
ProtocolMarshaller
.marshall
in interface StructuredPojo
protocolMarshaller
- Implementation of ProtocolMarshaller
used to marshall this object's data.Copyright © 2017 Amazon Web Services, Inc. All Rights Reserved.