AWS SDK Version 3 for .NET
API Reference

AWS services or capabilities described in AWS Documentation may vary by region/location. Click Getting Started with Amazon AWS to see specific differences applicable to the China (Beijing) Region.

Provides information for all active EC2 instances and EC2 instances terminated in the last 30 days, up to a maximum of 2,000. EC2 instances in any of the following states are considered active: AWAITING_FULFILLMENT, PROVISIONING, BOOTSTRAPPING, RUNNING.


For .NET Core and PCL this operation is only available in asynchronous form. Please refer to ListInstancesAsync.

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


public virtual ListInstancesResponse ListInstances(
         ListInstancesRequest request
Type: Amazon.ElasticMapReduce.Model.ListInstancesRequest

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

Return Value
The response from the ListInstances service method, as returned by ElasticMapReduce.


InternalServerException This exception occurs when there is an internal failure in the EMR service.
InvalidRequestException This exception occurs when there is something wrong with user input.

Version Information

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

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms

See Also