maxDequeueCount config setting not working for Azure Function

Question

I have an an Azure Function which I want to fail and sent to the poison queue if it errors once or twice. I've set the maxDequeueCount property in my host.json file to 1, but it still retries 5 times. Based on all the doco I've read this seems to be correct. Does anyone have any suggestions? Below is a sample of my hosts.json.

{
  "version": "2.0",
  "logging": {
    "fileLoggingMode": "debugOnly",
    "logLevel": {
      // For all functions
      "Function": "Trace",
      // Default settings, e.g. for host
      "default": "Trace"
    },
    "extensions": {
      "queues": {
        "visibilityTimeout": "00:01:00",
        "maxDequeueCount": 1
      }
    }
  }
}

Were you using storage queue trigger or service bus queue trigger? — caiyi Ju
– caiyi Ju, Commented May 16, 2020 at 14:45

Matthew Robb · Accepted Answer · 2024-01-12 05:44:37Z

3

Old question, but your problem was that your "extensions" property was inside your "logging" object rather than at the top level.

answered Jan 12, 2024 at 5:44

Matthew Robb

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Comments

caiyi Ju · Accepted Answer · 2020-06-01 03:29:06Z

1

For storage queue trigger, to change frequency of the retry, we just need to change the value of maxDequeueCount. Please go to azure portal to check the host.json file.

{
  "version": "2.0",
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[1.*, 2.0.0)"
  },
  "extensions": {
    "queues": {
      "maxDequeueCount": 1
    }
  }
}

If the feature still doesn't work after restarting the function, I afraid that you need to raise a support ticket on azure portal, they will check the backend logs for you.

answered Jun 1, 2020 at 3:29

caiyi Ju

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1 Comment

Henrik Over a year ago

For BlobTrigger you need to use this in host.json. "extensions": { "blobs": { "maxDegreeOfParallelism": 4, "poisonBlobThreshold": 1 } } learn.microsoft.com/en-us/azure/azure-functions/…

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