Corrupted dataset causes MONAILabel to fail

[mauigna06]

Describe the bug
There is corrupted data in test dataset Task09_Spleen.tar
(The issue is posted here because I believe this dataset is not used only by MONAILabel but along other MONAI projects)

To Reproduce
Steps to reproduce the behavior:

1. Download the dataset from: https://msd-for-monai.s3-us-west-2.amazonaws.com/Task09_Spleen.tar (which is used by default by MONAILabel)
2. Explore the file contents and check this location: /Task09_Spleen/imagesTr/
3. You'll find small (hidden) files with names starting with ._
4. Start the MONAILabel server
5. Use Slicer client and click "Next sample"
6. Repeatedly load a different sample as soon as the earlier one finishes
7. Eventually a load of a sample will throw an exception because of the corrupted data pointed out in 3.

Expected behavior
MONAILabel server should work well for all data samples

Screenshots

Environment

Latest MONAILabel docker image

Additional context
Solution: erase all corrupted data (e.g. files starting with ._)

[KumoLiu]

Hi @mauigna06, thanks for reporting.
The dataset is not maintained by MONAI and the files that start with ._ are usually special files generated by the Mac OS X (macOS) system, called "AppleDouble" files. The generation of these files is generally related to the storage and characteristics of the files in macOS, especially when transferring files to other systems that do not support macOS file attributes.
I didn't see support for macos in monailabel: https://github.com/Project-MONAI/MONAILabel?tab=readme-ov-file#current-stable-version

You may need to download the dataset on the supported system.

Hope it helps, thanks.