Onedrive reports 400/404 errors, killing the backup

[patrickxia]

My backups keep failing because of things like:

Failed to upload the chunk x: 400 Bad Request
Failed to upload the chunk y: 404 Item not found

It seems like the OneDrive API returns random 4xxs that aren't fully correct.

Fixing this is just removing the added check here:

duplicacy/src/duplicacy_oneclient.go

Line 184 in b392302

} else if response.StatusCode > 401 && response.StatusCode != 404 {

[hulbs9nw]

I'm getting this also which is making Duplicacy pretty much unusable on OneDrive. To complete my backup I ended up wrapping duplicacy in a loop so it keeps retrying. That seems to have helped with the initial back up but a second revision has left lots of tmp files lying around on OneDrive and when running a duplicacy check it's complaining about missing chunks.

[gilbertchen]

This issue has been mentioned on Duplicacy Forum. There might be relevant details there:

https://forum.duplicacy.com/t/onedrive-odb-issue-with-jobs-dying/5019/1

[simonengel]

I have the same problem. I try to do an initial backup of about 400 GB to ODB and the backup always fails after a few hours. I always get the slightly different but possibly related error:

Failed to upload the chunk x: 400 Unexpected response

[gilbertchen]

This issue has been mentioned on Duplicacy Forum. There might be relevant details there:

https://forum.duplicacy.com/t/retry-on-400-errors/6594/1