Azure Functions: optimization patterns on Queue Trigger with Large Messages in .NET 6
I'm working on a personal project and I'm getting frustrated with I'm experiencing a timeout scenario with my Azure Function that is triggered by a Queue storage message. The function processes large messages (up to 4MB) and occasionally encounters a timeout exception. The relevant exception message is: ``` TimeoutException: The operation has timed out. ``` I'm using Azure Functions version 4.0 and targeting .NET 6. My function definition looks like this: ```csharp public static class QueueFunction { [FunctionName("ProcessQueueMessage")] public static async Task Run([QueueTrigger("myqueue-items", Connection = "AzureWebJobsStorage")] string queueMessage, ILogger log) { log.LogInformation($"Processing message: {queueMessage}"); // Simulating a long-running process await Task.Delay(300000); // Simulates processing time } } ``` The `FunctionTimeout` is set to `00:10:00` in the `host.json` file, but it seems like the message processing still reaches a timeout occasionally, especially when the message size approaches the limit. I've tried increasing the timeout value to `00:20:00`, but the function still times out. I’ve verified that the function app plan is on the Premium tier to support longer execution times. I also checked the Application Insights logs for any additional details, but the logs don't provide much insight beyond the timeout behavior. My concern is whether there are best practices or settings I might be missing that could help with processing larger messages or if there's a more efficient way to handle these scenarios. Any suggestions would be greatly appreciated! This is happening in both development and production on macOS. Has anyone dealt with something similar? What's the best practice here?