DSpace 8.0: large file upload performance, realibility and theoretical limit

[Zoltán Kanász-Nagy]

For DSpace 8.0, is there a per-file upload limit? We would like to upload larger video files (10-20GB / file) in one of our 8.0 instances, but I've observed that files larger than 6-7GB quite often are marked as failed by the dspace-angular frontend.

I’ve already adjusted the file upload limit-related (Spring) properties on the backend to higher values and increased the upload limit on the proxy server in front of the instance. However, I still encounter the following issue: the upload progress bar in the dspace-angular frontend gradually reaches 100%, but then remains at 100% for several minutes before displaying a file upload failure message.

There is another oddity I've noticed. The previously mentioned issue tends to occur quite frequently even when I run the DSpace stack on my local machine via Docker, and I don’t feel that the dspace-angular progress bar upload is faster when dealing with larger files.  

We are running the 8.0 stack via Docker, and the frontend is also running in a Docker container (using pm2).

If DSpace is supposed to handle file uploads of 7-8GB or larger reliably, could you suggest where else I should investigate this issue?

Thank you for all the info and help!