Do timeouts work at all with uvicorn ??

[mikehagerty]

Googling around, some people say to set the timeouts like this:

uvicorn myapp:app --timeout 120 ...
I've read confident proclamations that uvicorn's default timeout is 60 seconds.

However, the (incredibly sparse) documentation for uvicorn only mentions:
--timeout-keep-alive [Default 5]
--timeout-graceful-shutdown
Source: https://www.uvicorn.org/settings/#timeouts

I am starting FastAPI/uvicorn from my app:

def main():
    uvicorn.run("myapp:app", host=, .. reload=False, timeout_keep_alive=300, ...)

However, when trying to serve a large file (>40 Mb), the server is timing out after
exactly 60 seconds. The browser reports this as a Proxy Error.
I tried adding "timeout=300" in my uvicorn.run() call but get an error that this param
is not recognized.

My questions are:

1. Does uvicorn have a --timeout flag or is this deprecated ?
2. Is uvicorn performing this timeout and if so, is there anyway to change it ?!

Thanks for any info on this!

I've tested this for:
python=3.11
uvicorn=0.32.1 and 0.34.0
Chrome + Safari browser

[roy651]

@mikehagerty did you find the root cause? workaround to this problem?