Wrong remote URL for webdav backend

[FatemeKhodayari]

Hi. I'm a beginner to DVC. Yesterday, I set up DVC with a webdav backend as said in the official documentation. When I wanted to push to the remote, the URL had 00 added to it. It must have been https://mydomain/webdav/models but instead DVC was trying to push to https://mydomain/webdav/models/00 which is a nonexisting URL.

Any idea why this is happening and how I should solve it?

[jorgeorpinel]

From the conversation in https://discord.com/channels/485586884165107732/485596304961962003/914048099742253068 it seems it's a compatibility issue. Summary:

00 is probably from trying to estimate your remote size. There is nothing wrong with that. It looks like you might have some configuration problem.
What server are you using? owncloud?
- @efiop

It's a VPS with apache.
Based on apache error log, the problem seems to be with the authentication scheme. The authentication scheme of the webdav server is set to digest while it seems dvc is using basic.
- @FatemeKhodayari

We don't support digest auth in dvc for webdav. We'll be happy to add that if someone contributes
- @skshetry

[FatemeKhodayari]

Also asked in https://groups.google.com/a/iterative.ai/g/support/c/F4pPX7UVdvs/m/Yv1KGbWPCAAJ?utm_medium=email&utm_source=footer&pli=1

Thanks for the reply but it seems the content's not available. Anyway, after going through apache logs I realised the actual error is because of the auth scheme. DVC is using basic auth for webdav (and yes, you are not able to change it) while our webdav server had digest as auth scheme. So we had to change the auth scheme of the webdav server.

After that, the auth problem was solved but we were facing a new issue about redirection. The actual problem was with the trailing slash. DVC was sending a URL without the trailing slash, apache / webdav was redirecting it to the URL with the trailing slash but the URL was not being followed. So we were getting 301 as a response to our post (push) request. This one was fixed by export FSSPEC_DAV_FOLLOW_REDIRECTS=true which IMHO is not a good solution. It was way better if we could set it through something like dvc config or dvc modify.

And now we are facing timeout issues on some of the cached data :)) I disabled request timeout on apache but the problem is still there.

[jorgeorpinel]

Thanks @FatemeKhodayari . I actually transferred this issue last week to treeverse/dvc#7065 and added those details but it looks like Github failed to finish the transfer. Closing here.