AWS SDK Version 3 for .NET
API Reference

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Container for the parameters to the UpdateShardCount operation. Updates the shard count of the specified stream to the specified number of shards.

Updating the shard count is an asynchronous operation. Upon receiving the request, Kinesis Data Streams returns immediately and sets the status of the stream to UPDATING. After the update is complete, Kinesis Data Streams sets the status of the stream back to ACTIVE. Depending on the size of the stream, the scaling action could take a few minutes to complete. You can continue to read and write data to your stream while its status is UPDATING.

To update the shard count, Kinesis Data Streams performs splits or merges on individual shards. This can cause short-lived shards to be created, in addition to the final shards. We recommend that you double or halve the shard count, as this results in the fewest number of splits or merges.

This operation has the following default limits. By default, you cannot do the following:

For the default limits for an AWS account, see Streams Limits in the Amazon Kinesis Data Streams Developer Guide. To request an increase in the call rate limit, the shard limit for this API, or your overall shard limit, use the limits form.

Inheritance Hierarchy


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


public class UpdateShardCountRequest : AmazonKinesisRequest

The UpdateShardCountRequest type exposes the following members


Public Method UpdateShardCountRequest()


Public Property ScalingType Amazon.Kinesis.ScalingType

Gets and sets the property ScalingType.

The scaling type. Uniform scaling creates shards of equal size.

Public Property StreamName System.String

Gets and sets the property StreamName.

The name of the stream.

Public Property TargetShardCount System.Int32

Gets and sets the property TargetShardCount.

The new number of shards.

Version Information

.NET Standard:
Supported in: 1.3

.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

Supported Versions: 4.6 and above
Supported Platforms: Android, iOS, Standalone