[Bug] [FEATURE REQUEST] Allowing option to specify the MaxDequeueCount to Queues underlying in Blobs

[amnguye]

Library name and version

Microsoft.Azure.WebJobs.Extensions.Storage.Blobs

Query/Question

Related to #33672

For poison blobs when blob trigger fails it retries 5 times by default.
https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-blob-trigger?tabs=in-process&pivots=programming-language-csharp#poison-blobs

However in v4 when the packages were shipped together, customers were able to specify the MaxDequeueCount in order to specify the retry amount before the message is added to the blob trigger poison.

Since starting v5, the host.json only applies to queue triggers, and not blob triggers the following properties (including MaxDequeueCount have not been carried forward.

https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-queue?tabs=in-process%2Cextensionv5%2Cextensionv3&pivots=programming-language-csharp#host-json

We need to figure out a way to expose this value without using the queues trigger settings.

Environment

No response

[liliankasem]

If this public doc is up to date, it looks like for v5.x there are host.json settings for blobs: https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-blob?tabs=in-process%2Cextensionv5%2Cextensionv3&pivots=programming-language-csharp#hostjson-settings

We could use that to add MaxDequeueCount and other properties?

Or is issue suggesting there is a bug with the host and/or extension where the existing blob config isn't being applied?

[amnguye]

@liliankasem I left the issue open ended for us to decide how we wanted to resolve the issue.

I think the best way is to add the MaxDequeueCount to the host.json settings for blobs

[liliankasem]

@liliankasem I left the issue open ended for us to decide how we wanted to resolve the issue.

I think the best way is to add the MaxDequeueCount to the host.json settings for blobs

Yup, I agree. I responded in the email thread about this

You’ll need to update BlobsOptions to add a property for ‘MaxDequeueCount’ and utilize that in the extension as necessary. Any property defined in your options would automatically be exposed in host.json under the extension name.

If this is not working, let us know and we can help investigate if the right configuration pattern is being used.

[amnguye]

@liliankasem Just made the PR. If someone from your team could review it that would be great.

#37836

I will also get someone from my team to review it as well.