Interface IPlacementGroup
Determines where your instances are placed on the underlying hardware according to the specified PlacementGroupStrategy.
Namespace: Amazon.CDK.AWS.EC2
Assembly: Amazon.CDK.Lib.dll
Syntax (csharp)
public interface IPlacementGroup : IResource
Syntax (vb)
Public Interface IPlacementGroup
Inherits IResource, IConstruct, IDependable
Remarks
Synopsis
Properties
Partitions | The number of partitions. |
PlacementGroupName | The name of this placement group. |
SpreadLevel | Places instances on distinct hardware. |
Strategy | Which strategy to use when launching instances. |
Properties
Partitions
The number of partitions.
virtual Nullable<double> Partitions { get; }
Property Value
System.Nullable<System.Double>
Remarks
Valid only when Strategy is set to PARTITION.
Default: 0
PlacementGroupName
The name of this placement group.
string PlacementGroupName { get; }
Property Value
System.String
Remarks
Attribute: true
SpreadLevel
Places instances on distinct hardware.
virtual Nullable<PlacementGroupSpreadLevel> SpreadLevel { get; }
Property Value
System.Nullable<PlacementGroupSpreadLevel>
Remarks
Spread placement groups are recommended for applications that have a small number of critical instances that should be kept separate from each other. Launching instances in a spread level placement group reduces the risk of simultaneous failures that might occur when instances share the same equipment. Spread level placement groups provide access to distinct hardware, and are therefore suitable for mixing instance types or launching instances over time. If you start or launch an instance in a spread placement group and there is insufficient unique hardware to fulfill the request, the request fails. Amazon EC2 makes more distinct hardware available over time, so you can try your request again later. Placement groups can spread instances across racks or hosts. You can use host level spread placement groups only with AWS Outposts.
Default: - no spread level
Strategy
Which strategy to use when launching instances.
virtual Nullable<PlacementGroupStrategy> Strategy { get; }
Property Value
System.Nullable<PlacementGroupStrategy>
Remarks
Default: - PlacementGroupStrategy.PARTITION
if partitions
is defined, CLUSTER
otherwise