Facing issue while uploading a blob to azue blob storage, detailed steps described below Using azure-iot-sdk-c on top of it consuming CURL api's in application to upload a blob. CURL-easy-perform is returning a success code after uploading the blob to the Azure blob storage. But when we are trying to access the file from the portal/front end application, it is throwing error saying as below Error. An error occurred while processing your request. Value cannot be null. Parameter name: fileContents Kindly support/assist on this issue

Blob upload to azure blob storage is failed as unable to locate the blob.

Subhendu Rout 11

Facing issue while uploading a blob to azue blob storage, detailed steps described below

Using azure-iot-sdk-c on top of it consuming CURL api's in application to upload a blob.
CURL-easy-perform is returning a success code after uploading the blob to the Azure blob storage.
But when we are trying to access the file from the portal/front end application, it is throwing error saying as below Error.
An error occurred while processing your request.
Value cannot be null. Parameter name: fileContents

Kindly support/assist on this issue

António Sérgio Azevedo 7,661 Reputation points Microsoft Employee

2021-10-21T09:06:23.997+00:00

Hello @Subhendu Rout welcome to Microsoft Q&A and thank you for reporting the issue here.

Could you please confirm that you have followed the steps as described here to Upload files with IoT Hub ?

Thank you!
Subhendu Rout 11 Reputation points

2021-10-21T10:00:16.74+00:00
Hi asergaz,

Uploading zipped log files(text) of size > 80 MB.

Note-
The upload operation is working properly for other setups(file size < 50 MB), except once setup which is operating on cellular modem(file size > 80 MB).

Thank you!
António Sérgio Azevedo 7,661 Reputation points Microsoft Employee

2021-10-21T15:31:09.527+00:00

Hi @Subhendu Rout ,
If you grab the same file and upload it using azcopy or storage explorer what is the result?

Thanks!
António Sérgio Azevedo 7,661 Reputation points Microsoft Employee

2021-10-27T11:03:25.013+00:00

Hello @Subhendu Rout were you able to followup on the suggestion above?

Thanks!
Subhendu Rout 11 Reputation points

2021-10-27T11:55:12.52+00:00

Hi @António Sérgio Azevedo ,

Yes we have tried to upload a file > 100 MB using storage explorer and from application invoking CURL API's and found it is uploading the blob to the blob storage.

But one thing is not clear, why only a particular device is not able to upload a file/blob sized > 100 MB? Is this because of the cellular network on which it is running not allowing this operation?

Sorry for the delayed response, was little bit busy...

Regards,
António Sérgio Azevedo 7,661 Reputation points Microsoft Employee

2021-10-28T16:03:07.88+00:00

Thank you @Subhendu Rout for trying it.
I will recommend that you open a support ticket with Azure Storage Team as we need to look at server side logs.
Will send you a private message with more details.
Thanks!