AmazonAutoScalingClient.TerminateInstanceInAutoScalingGroup Method (TerminateInstanceInAutoScalingGroupRequest)

Terminates the specified instance and optionally adjusts the desired group size. This operation cannot be called on instances in a warm pool.

This call simply makes a termination request. The instance is not terminated immediately. When an instance is terminated, the instance status changes to terminated. You can't connect to or start an instance after you've terminated it.

If you do not specify the option to decrement the desired capacity, Amazon EC2 Auto Scaling launches instances to replace the ones that are terminated.

By default, Amazon EC2 Auto Scaling balances instances across all Availability Zones. If you decrement the desired capacity, your Auto Scaling group can become unbalanced between Availability Zones. Amazon EC2 Auto Scaling tries to rebalance the group, and rebalancing might terminate instances in other zones. For more information, see Rebalancing activities in the Amazon EC2 Auto Scaling User Guide.

Note:

For .NET Core this operation is only available in asynchronous form. Please refer to TerminateInstanceInAutoScalingGroupAsync.

Namespace: Amazon.AutoScaling
Assembly: AWSSDK.AutoScaling.dll
Version: 3.x.y.z

Syntax

public virtual TerminateInstanceInAutoScalingGroupResponse TerminateInstanceInAutoScalingGroup(
         TerminateInstanceInAutoScalingGroupRequest request
)

Parameters

request: Type: Amazon.AutoScaling.Model.TerminateInstanceInAutoScalingGroupRequest

Container for the necessary parameters to execute the TerminateInstanceInAutoScalingGroup service method.

Return Value

Type: TerminateInstanceInAutoScalingGroupResponse

The response from the TerminateInstanceInAutoScalingGroup service method, as returned by AutoScaling.

Exceptions

Exception	Condition
ResourceContentionException	You already have a pending update to an Amazon EC2 Auto Scaling resource (for example, an Auto Scaling group, instance, or load balancer).
ScalingActivityInProgressException	The operation can't be performed because there are scaling activities in progress.

Examples

This example terminates the specified instance from the specified Auto Scaling group without updating the size of the group. Auto Scaling launches a replacement instance after the specified instance terminates.

To terminate an instance in an Auto Scaling group


var client = new AmazonAutoScalingClient();
var response = client.TerminateInstanceInAutoScalingGroup(new TerminateInstanceInAutoScalingGroupRequest 
{
    InstanceId = "i-93633f9b",
    ShouldDecrementDesiredCapacity = false
});

Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

AmazonAutoScalingClient.TerminateInstanceInAutoScalingGroup (TerminateInstanceInAutoScalingGroupRequest)

Method