Search code examples
azureazure-data-factory

Additional empty blob created with folder names in Azure storage container-not able to delete

Whenever I create a folder or subfolder inside my azure container,it is creating additional empty blobs in it. It is a blob storage with hierrachial namespace disabled-is that the cause?

Also I am not able to delete them using the delete activity in ADF. The activity shows success but doesnt removes those files.

Solution
    • Azure blob storage does not support having empty folders. Thus, when you try to create folders (or empty folders), there will be a duplicate empty file. The following is a demonstration where I have tried to replicate this issue.

    enter image description here

    • However, I was able to delete that specific file by selecting it in dataset using delete activity.

    It is a blob storage with hierrachial namespace disabled-is that the cause?

    • Yes, enabling hierarchical workspace will enable azure data lake which supports file and directory semantics and therefore which wouldn't create that additional file.