I was wrong, as some people pointed out. There isn’t such a thing. Maybe I’m remembering something from the past or something we planned to do but haven’t yet.
You’re right, the uplink can handle that case, as long as there are enough other input streams. I didn’t think that through.
This is what I’d expect also, but I’ve heard we have people who end up with massive temp directories containing gigabytes of detritus. It’s not clear to me whether there is a bug in the node code that fails to delete temp files when an upload fails, or if those nodes are restarting a lot more frequently than I think they should. I also don’t know how widespread of a problem that is; maybe it’s nothing to worry about.
Overall, I am intrigued by your suggestion and I’ll be eager to read your storage architecture proposal, if you get a chance to put it together.