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ds.map() blues

#9
by eminorhan - opened

I'm just curious if anybody has been able to download the dataset from S3. I'm basically using the code snippet provided on the README page of this repo for downloading the file contents from S3. I'm using num_proc>1 in ds.map() to speed up the download. It successfully downloads ~90% of the data, but then slows down and comes to a halt in the end at ~99%, never being able to download the full dataset (it's truly a remarkable real-life example of Zeno's paradox!). I've found that this very same issue with ds.map() has been mentioned in several other places before: e.g. here and here, so it seems like a long-standing issue in ds.map() that was never successfully addressed. Have the dataset providers ever tried and succeeded in downloading the dataset from S3 using the code snippet they show on the README page?

I've tried lots of things, but nothing seems to fix this issue and it's kind of frustrating. This issue affects all versions of this dataset in my experience.

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