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.

Task runners call PollForTask to receive a task to perform from AWS Data Pipeline. The task runner specifies which tasks it can perform by setting a value for the workerGroup parameter. The task returned can come from any of the pipelines that match the workerGroup value passed in by the task runner and that was launched using the IAM user credentials specified by the task runner.

If tasks are ready in the work queue, PollForTask returns a response immediately. If no tasks are available in the queue, PollForTask uses long-polling and holds on to a poll connection for up to a 90 seconds, during which time the first newly scheduled task is handed to the task runner. To accomodate this, set the socket timeout in your task runner to 90 seconds. The task runner should not call PollForTask again on the same workerGroup until it receives a response, and this can take up to 90 seconds.

Note:

For PCL this operation is only available in asynchronous form. Please refer to PollForTaskAsync.

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

Syntax

C#
public virtual PollForTaskResponse PollForTask(
         PollForTaskRequest request
)
Parameters
request
Type: Amazon.DataPipeline.Model.PollForTaskRequest

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

Return Value
The response from the PollForTask service method, as returned by DataPipeline.

Exceptions

ExceptionCondition
InternalServiceErrorException An internal service error occurred.
InvalidRequestException The request was not valid. Verify that your request was properly formatted, that the signature was generated with the correct credentials, and that you haven't exceeded any of the service limits for your account.
TaskNotFoundException The specified task was not found.

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