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.
Inheritance Hierarchy
Namespace: Amazon.ElasticMapReduce.Model
Assembly: AWSSDK.ElasticMapReduce.dll
Version: 3.x.y.z
Syntax
public class InstanceGroup
The InstanceGroup type exposes the following members
Constructors
| Name | Description | |
|---|---|---|
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InstanceGroup() |
Properties
| Name | Type | Description | |
|---|---|---|---|
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AutoScalingPolicy | Amazon.ElasticMapReduce.Model.AutoScalingPolicyDescription |
Gets and sets the property 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 Amazon EC2 instances in response to the value of a CloudWatch metric. See PutAutoScalingPolicy. |
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BidPrice | System.String |
Gets and sets the property 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 |
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Configurations | System.Collections.Generic.List<Amazon.ElasticMapReduce.Model.Configuration> |
Gets and sets the property 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). |
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ConfigurationsVersion | System.Int64 |
Gets and sets the property ConfigurationsVersion. The version number of the requested configuration specification for this instance group. |
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CustomAmiId | System.String |
Gets and sets the property CustomAmiId. The custom AMI ID to use for the provisioned instance group. |
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EbsBlockDevices | System.Collections.Generic.List<Amazon.ElasticMapReduce.Model.EbsBlockDevice> |
Gets and sets the property EbsBlockDevices. The EBS block devices that are mapped to this instance group. |
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EbsOptimized | System.Boolean |
Gets and sets the property 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. |
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Id | System.String |
Gets and sets the property Id. The identifier of the instance group. |
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InstanceGroupType | Amazon.ElasticMapReduce.InstanceGroupType |
Gets and sets the property InstanceGroupType. The type of the instance group. Valid values are MASTER, CORE or TASK. |
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InstanceType | System.String |
Gets and sets the property InstanceType. The Amazon EC2 instance type for all instances in the instance group. |
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LastSuccessfullyAppliedConfigurations | System.Collections.Generic.List<Amazon.ElasticMapReduce.Model.Configuration> |
Gets and sets the property LastSuccessfullyAppliedConfigurations. A list of configurations that were successfully applied for an instance group last time. |
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LastSuccessfullyAppliedConfigurationsVersion | System.Int64 |
Gets and sets the property LastSuccessfullyAppliedConfigurationsVersion. The version number of a configuration specification that was successfully applied for an instance group last time. |
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Market | Amazon.ElasticMapReduce.MarketType |
Gets and sets the property Market. The marketplace to provision instances for this group. Valid values are ON_DEMAND or SPOT. |
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Name | System.String |
Gets and sets the property Name. The name of the instance group. |
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RequestedInstanceCount | System.Int32 |
Gets and sets the property RequestedInstanceCount. The target number of instances for the instance group. |
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RunningInstanceCount | System.Int32 |
Gets and sets the property RunningInstanceCount. The number of instances currently running in this instance group. |
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ShrinkPolicy | Amazon.ElasticMapReduce.Model.ShrinkPolicy |
Gets and sets the property ShrinkPolicy. Policy for customizing shrink operations. |
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Status | Amazon.ElasticMapReduce.Model.InstanceGroupStatus |
Gets and sets the property Status. The current status of the instance group. |
Version Information
.NET Core App:
Supported in: 3.1
.NET Standard:
Supported in: 2.0
.NET Framework:
Supported in: 4.5, 4.0, 3.5