Troubleshoot the TooManyRequestsReceived or SubscriptionRequestsThrottled error code

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This article discusses how to identify and resolve the TooManyRequestsReceived or SubscriptionRequestsThrottled error that occurs when you try to delete a Microsoft Azure Kubernetes Service (AKS) cluster.

Symptoms

When you try to delete an AKS cluster, you receive the following error message:

internalErrorCode: TooManyRequestsReceived

StatusCode: 429

{

message: "Number of read requests for subscription '.....''' exceeded the limit of '....' for time interval 'XX:XX:XX'. Please try again after '.....' seconds."

}

Cause

Every subscription-level and tenant-level operation is subject to throttling limits. These limits apply to each instance of Azure Resource Manager. When you reach the limit, you receive an HTTP response that indicates status code 429: "Too many requests."

Solution

The HTTP response includes a Retry-After value. This specifies the number of seconds that your application should wait (or sleep) before it sends the next request. If you send a request before the retry value has elapsed, your request isn't processed, and a new retry value is returned. For more information about throttling limits, see Throttling Resource Manager requests.

Contact us for help

If you have questions or need help, create a support request, or ask Azure community support. You can also submit product feedback to Azure feedback community.