Durable Functions and Consumption plan pricing

Question

The timeout limit is 10 minutes, does this apply to Durable functions as well? e.g. Timer for 5 hours wake up

Answer 1

Ron Pitts Thanks for reaching out. Yes, the timeout limit of 5 applies to Durable Functions as well. By default, the maximum duration of a single function execution in Azure Functions is 10 minutes. This includes Durable Functions. The same is documented here.

By default, functions running in the Consumption plan have a timeout of five minutes. If this limit is exceeded, the Azure Functions host is recycled to stop all execution and prevent a runaway billing situation. The function timeout is configurable.

If you need to run a long-running operation in a Durable Function, you can use the DurableOrchestrationContext.CreateTimer method to create a timer that wakes up the function after a specified amount of time. However, the maximum duration of the timer is also limited to 6 days.

Here's an example of how you can use the DurableOrchestrationContext.CreateTimer method to create a timer that wakes up the function after 5 hours:

[FunctionName("MyOrchestratorFunction")]
public static async Task RunOrchestrator(
    [OrchestrationTrigger] DurableOrchestrationContext context)
{
    // Create a timer that wakes up the function after 5 hours
    DateTime wakeUpTime = context.CurrentUtcDateTime.AddHours(5);
    await context.CreateTimer(wakeUpTime, CancellationToken.None);

    // Perform the long-running operation here
    // ...
}

In this example, the DurableOrchestrationContext.CreateTimer method is used to create a timer that wakes up the function after 5 hours. The AddHours method of the DateTime object is used to calculate the wake-up time.

The same is documented here. Please review the timer limitation here.

Feel free to get back to me if you have any queries or concerns.

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