[Bug]: Files larger than 100MB not uploading / better handling of chunk limits

[N-Hertstein]

[Bug]: Files larger than 100MB not uploading / better handling of chunk limits

[solracsf]

You can adjust max_chunk_size server side.
See docs or reach help at https://help.nextcloud.com

[joshtrichards]

You can adjust max_chunk_size server side.

AFAIK this only changes it for the Web client.

And businesses cannot be expected to change this for every pc in a large scale deployment.

Businesses often have other preferred ways of mass deploying internal software such as the Desktop client, including config customizations. In addition, as noted, it's not an issue for the Web client.

It's possible the Desktop client is being more aggressive than our Web client at determining maximum chunk size.

I think the uploader in Web most of the time effectively uses the default of 10 MiB (unless the file is particularly large or the admin has changed it from the default).

I haven't fully been through the Desktop client's approach in this area, but I going from memory I got the sense Desktop may start out trying to use as few chunks as possible (and therefore much larger ones), whereas Web kind of does the opposite.

I may be wrong though because I only glanced at the code a bit back and so take with a grain of salt.

https://github.com/search?q=repo%3Anextcloud%2Fdesktop%20maxchunksize&type=code

The Desktop client also has a dynamic mode that adapts based on target duration parameters, which further complicates things (and I'm not aware of the Web client having any such thing).

[joshtrichards]

P.S. I apologize for leaning a bit more on speculation than I usually prefer in my response a short bit ago.

My aim was to add a bit to the discussion, but upon reflection I probably should have just left it as a draft for now. :-)

This topic just happens to connect with one I've had on my "to investigate" list for a bit: the behavior of chunking, particularly in a default configuration, in the Desktop versus Web clients.

(Lacking time today to get deeply into this, I'm drawing heavily on memory and an incomplete prior review of the Desktop chunking code).

This is mostly a disclaimer to take my speculation about differences in behavior with a grain of salt for now. :-)