Adding UploadWizard as this seems to be about UploadWizard.

I don't think this necessarily works like you think it will.

I was advised Special:UploadWzard undetook different approaches to support upload of larger files by means of 'chunked uploads' which can also be done using a manually installed script.

Chunked upload is for doing uploads in "chunks" (parts) from the local machine, using javascript to the MW API.

This doesn't work for the upload by url, which is a direct request from Wikimedia servers to download the file, done server side, not from the client side.

If that is not working, it's probably hitting a timeout, because the source is too slow or the file is just too big (though, 100MB it shouldn't be too big).

So making UploadWizard fire off the same API request isn't going to make it work any better, and unless it downloads it locally first , chunked upload isn't going to work either.

Have tasks been filed for the upload by url failing? Because the proper fix is either to make upload by url multi streamed, or do it as some sort of background job that won't suffer from timeout (or increasing the timeout).

I have not filed a specific phabricator ticket for the Special:Upload upload by URL failing (in respect of large uploads), as I was told this was a known issue already.

Can you clarify further what you mean by 'multi-streamed' , Do you mean something like the approach some FTP clients use, by having multiple connections?

In T255361#6222232, @ShakespeareFan00 wrote:

Can you clarify further what you mean by 'multi-streamed' , Do you mean something like the approach some FTP clients use, by having multiple connections?

Yes, basically. HTTP downloads can do it too; download managers have been doing it for decades. I don't know what exactly ends up being done in the MW abstractions when it hits the underlying curl/guzzle library, and as such, how the file is grabbed etc

In T255361#6222232, @ShakespeareFan00 wrote:

I have not filed a specific phabricator ticket for the Special:Upload upload by URL failing (in respect of large uploads), as I was told this was a known issue already.

As always, cross linking tickets helps

I wasn't sure what tickets had been filed regarding the large file upload issues from Special:Upload..

T254459, T255238 may also need to be solved .