App Service - Response status code does not indicate success: 429 (Too Many Requests)

Question

Hi,

I have deploy a app service in azure but when it fails with the exception:
2020-06-20T18:00:24 PID[22560] Error Unhandled exception. System.AggregateException: One or more errors occurred. (Response status code does not indicate success: 429 (Too Many Requests).)
2020-06-20T18:00:24 PID[22560] Error ---> System.Net.Http.HttpRequestException: Response status code does not indicate success: 429 (Too Many Requests).
2020-06-20T18:00:24 PID[22560] Error at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode()
2020-06-20T18:00:24 PID[22560] Error at System.Net.Http.HttpClient.GetStringAsyncCore(Task`1 getTask)
2020-06-20T18:00:24 PID[22560] Error --- End of inner exception stack trace ---

After invoking a http service.

Any tip?

Thanks and Regards

Answer 1

Thanks for asking question! To elaborate on this Azure Resource Manager does the authentication and first-order validation and throttling of all incoming API requests.
If you are getting a HTTP status 429 Too Many Requests you need to understand if the request throttling is done by Azure Resource Manager or an underlying resource provider like CRP, inspect the x-ms-ratelimit-remaining-subscription-reads for GET requests and x-ms-ratelimit-remaining-subscription-writes response headers for non-GET requests. If the remaining call count is approaching 0, the subscription’s general call limit defined by Azure Resource Manager has been reached. Activities by all subscription clients are counted together. Otherwise, the throttling is coming from the target resource provider.

You may refer to Throttling Resource Manager requests for Azure Resource Manager call rate limits and related diagnostic response HTTP headers.

Reference: https://learn.microsoft.com/en-us/azure/virtual-machines/troubleshooting/troubleshooting-throttling-errors

Also, The following page describes all Azure subscription limits: https://azure.microsoft.com/en-us/documentation/articles/azure-subscription-service-limits