Azure Function Timeout When Processing Large Queue Messages with Durable Functions
Quick question that's been bugging me - I need some guidance on I'm having a hard time understanding I'm collaborating on a project where I'm stuck on something that should probably be simple..... I'm experiencing a timeout scenario with an Azure Function that processes messages from an Azure Storage Queue using Durable Functions. The function is set to handle large payloads (around 10MB), but it seems to timeout after 5 minutes, which is the default limit for Azure Functions. I've already adjusted the function timeout settings in the host.json file: ```json { "functionTimeout": "00:10:00" } ``` However, the function still times out before it finishes processing the message. I suspect the scenario may be related to how I'm using Durable Functions. I'm calling an activity function within an orchestrator function to process the queue message, but the orchestration seems to be getting exploring: ```csharp [FunctionName("OrchestratorFunction")] public static async Task RunOrchestrator([OrchestrationTrigger] IDurableOrchestrationContext context) { var queueMessage = await context.WaitForExternalEvent<string>("QueueMessageEvent"); await context.CallActivityAsync("ActivityFunction", queueMessage); } [FunctionName("ActivityFunction")] public static async Task ProcessMessage([ActivityTrigger] string queueMessage) { // Simulating processing delay await Task.Delay(600000); // 10 minutes } ``` When I check the logs, I see the following behavior message right before the timeout occurs: "Function 'OrchestratorFunction' failed: The function has exceeded its time limit." I've also verified that the Azure Function App is set to a Premium plan to allow for longer execution times. Additionally, the Azure Storage Queue trigger for the Function App is set up correctly, but the orchestration is not completing as expected. I've tried breaking down the payload into smaller chunks and processing them in parallel, but I still encounter the same timeout scenario. Any advice on how to properly configure my Durable Function to handle larger payloads without timing out would be greatly appreciated! This is part of a larger web app I'm building. Has anyone dealt with something similar? Am I approaching this the right way? Any ideas what could be causing this? I'm developing on macOS with C#. What's the best practice here?