Missing ImageNet Sample Dataset - ERROR 404: The specified blob does not exist

[mattmazzola]

Issue

On step: https://learn.microsoft.com/en-us/azure/machine-learning/how-to-image-processing-batch?view=azureml-api-2&tabs=cli#registering-the-model

It asks to download a sample dataset to test image classifier

wget https://azuremlexampledata.blob.core.windows.net/data/imagenet-1000.zip

Error

mattmazzola@<removed>:/mnt/d/repos/azureml-examples/cli/endpoints/batch/deploy-models/imagenet-classifier$ wget https://azuremlexampledata.blob.core.windows.net/data/imagenet-1000.zip
 imagenet-1000.zip--2023-06-29 10:40:43--  https://azuremlexampledata.blob.core.windows.net/data/imagenet-1000.zip
 -d dataResolving azuremlexampledata.blob.core.windows.net (azuremlexampledata.blob.core.windows.net)... 20.209.0.229
Connecting to azuremlexampledata.blob.core.windows.net (azuremlexampledata.blob.core.windows.net)|20.209.0.229|:443... connected.
HTTP request sent, awaiting response... 404 The specified blob does not exist.
2023-06-29 10:40:44 ERROR 404: The specified blob does not exist..

It seems directory listing isn't enabled for the storage container so it's not clear what the correct file path should be.

However, this model blob downloaded previously in tutorial DID exist so the container must be there.

https://azuremlexampledata.blob.core.windows.net/data/imagenet/model.zip

Solution

I was able to manually add the missing imagenet segment to url and it worked!

Label	URL
Incorrect	wget https://azuremlexampledata.blob.core.windows.net/data/imagenet-1000.zip
Correct	wget https://azuremlexampledata.blob.core.windows.net/data/imagenet/imagenet-1000.zip

This could be a more significant issue since it there isn't an obvious fix and not having data would block people from completing the tutorial.

Suggestion

Perhaps there could be a PR validation action that detects all blob urls in the markdown then makes a request to verify that url destination exists or it would reject the PR. I suppose the issue could still occur if someone manually deleted the blob after the fact, but it could be caught on next PR validation run.

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Document Details

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• ID: 864bc73f-8532-79c4-a0ec-4d58f30665ff
• Version Independent ID: 2d242379-660c-e76a-9b87-867fe828708e
• Content: Image processing with batch model deployments - Azure Machine Learning
• Content Source: articles/machine-learning/how-to-image-processing-batch.md
• Service: machine-learning
• Sub-service: core
• GitHub Login: @santiagxf
• Microsoft Alias: fasantia

[santiagxf]

Thanks for reporting this issue @mattmazzola. Indeed, you were right. The path is wrong in the CLI example, while it was correct in the SDK one. It has been addressed in the following PR: Azure/azureml-examples#2413. Thanks!

[Naveenommi-MSFT]

@mattmazzola
Thank you for bringing this to our attention. We have created a PR for this issue and the changes should go live soon.

@santiagxf
Thank you for your response.

[Naveenommi-MSFT]

@mattmazzola
We are going to close this thread as resolved but if there are any further questions regarding the documentation, please tag me in your reply and we will be happy to continue the conversation.
#Please-close