Azure Front Door limiting octet-stream to 8mb

Question

Azure Front Door limiting octet-stream to 8mb

Sean Kenny 1

Hi Team.

We have an issue with our dotnet core asp application that is behind Azure Front Door when we try to deliver a zip file as a stream. The stream is > 8mb but is getting truncated to 8mb with a 200 Ok response. The same call to the internal app service *.azurewebsites.net url delivers the stream as expected. For files < 8mb, there does not appear to be an issue.

Pretty easy to replicate this. Is there any known issues perhaps with object chunking and streams with FD?

Out of ideas here.

Thanks

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Answer 1

suvasara-MSFT 10,076 Moderator

Greetings,

This is not expected behavior in AFD. In AFD we have object chunking where large data is sent in chunks of 8 MB but no truncation happens here. I would suggest you drop a mail at referencing the link to this QnA post as well as engineer you are working with (Subhash Vasarapu) in this case. We will provide you with a onetime free support to resolve this issue.

Regards,
Subhash

suvasara-MSFT 10,076 Reputation points Moderator

2020-09-29T11:19:35.647+00:00

@Sean Kenny , Just checking in to see if the above answer helped. If this answers your query, please don’t forget to "Accept the answer" and Up-Vote for the same, which might be beneficial to other community members reading this thread. And, if you have any further query do let us know.
suvasara-MSFT 10,076 Reputation points Moderator

2020-12-04T10:00:34.793+00:00

@Sean Kenny ,

If you think your question has been answered, click "Mark as Answer" if just helped click "Vote as helpful". This can be beneficial to other community members reading this forum thread.

Best regards
Subhash
Meisenbichler Christian 21 Reputation points

2022-12-16T10:36:43.907+00:00

I think it is a bit of a tall order to require all content larger than 8mb to support range requests. I effectively means an 8mb limit for dynamic content. I think it is quite normal that especially enterprise Apps have large reports or dynamic zipfiles. I find this quite frustrating!

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Azure Front Door limiting octet-stream to 8mb

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