Creating a Function App (Flex Consumption) 429 Error

Question

I have been having trouble creating a function app where it always gives a 429 error when deploying, I understand that there was a problem with function app recently but GitHub status shows all operational so I am not really sure. The error title was Update Hosting Plan with message "App Service Plan Create operation is throttled for subscription <>. Please contact support if issue persists."

I was able to create Function Apps before, and tried the next day, also there was no limit hit according to my azure portal. I am using the Azure for Students subscription, any advice?

Answer 1

Hello JEROME MATEO,

It looks like you're running into a 429 error when trying to create a Function App in Azure. This typically indicates that the creation operation is being throttled, which can happen for a few reasons, especially with your Azure for Students subscription. Here are some steps and considerations that might help you resolve the issue:

Check Subscription Quotas: Even if you believe you haven't hit any limits, it's worth double-checking your Azure subscription quotas. You might be running into some limits specific to the Azure for Students plan. You can review your subscription limits here.

1. Throttling Information: The 429 error suggests that the operation may be temporarily throttled by Azure Resource Manager or the resource provider (Microsoft.Web). Throttling can happen based on the type of subscription and the hosting plan. You can find more information on Azure's throttling policies here.
2. Try a Different Region: If your subscription frequently reaches its limits in one region, consider creating the Function App in a different geographical paired region, if that’s feasible for your setup. For example, if you’re in West US, try West US 2.

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Answer 2

The 429 error you are encountering when trying to create a function app indicates that the operation is being throttled for your subscription. This can happen due to various reasons, particularly when the subscription type has limitations on the number of resources that can be created or modified within a certain timeframe.

Since you are using an Azure for Students subscription, it may have specific quotas and limits that are contributing to this issue. Here are a few suggestions to resolve the problem:

1. Wait and Retry: If the issue is infrequent, waiting for a while and then trying again may help as throttling is often temporary.
2. Check Subscription Limits: Review the limits associated with your Azure for Students subscription. You can find information about Azure subscription limits and quotas in the Azure documentation.
3. Space Out Operations: If you are trying to create multiple resources in a short period, consider spacing out these operations to avoid hitting the throttling limits.
4. Contact Support: If the issue persists after trying the above steps, it may be beneficial to contact Azure support for assistance, especially since the error message suggests doing so.

For more detailed information on throttling and how to manage it, you can refer to the Azure documentation on throttling issues.

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References:

• Resolve issues when creating, deleting, or restoring Azure Function App