How can I increase the timeout on my durable function app?

Question

Hello,

I am currently using a consumption plan for my function app, but I need to process files that may take longer than 1 hour. Will using a durable function app solve this issue? Additionally, if I add the following code to my local settings, will it change anything?

"extensions": {
  "durableTask": {
    "maxTimeout": "03:00:00"
  }
}

Answer 1

Yes, using durable functions can help solve this issue. Durable Functions can handle much longer time frames

To apply this setting in the Azure environment, you need to configure it in the host.json file of your function app.

You can mark it 'Accept Answer' and 'Upvote' if this helped you

Regards,

Abiola

Answer 2

Hi @Shah, Maitree,

I get the sense you're asking this question after reviewing function app timeout duration. Please be aware that simply changing your function to a durable function won't address your immediate issue. The purpose of durable functions is to create a function that maintains state throughout an asynchronous execution. This framework is suggested if your HTTP trigger takes longer than the 230 second max for sending a response back to the client. If your trigger is something else, you encounter this specific restriction.

Furthermore, if you continue to leverage a durable function on a consumption plan, you will still be limited to a 10-minute execution timeout. Since you're estimating processing time to take an hour, you should consider moving towards a flex consumption plan SKU or higher. In addition, you'll need to apply retry policies in order to account for any scheduled patching that may occur during function execution.