Hello! is there a way to change how many flow runs the UI request to the backend by default? I am getting huge payloads which cause the UI to not load any flow runs

256 mb!! that’s quite the payload. The default limit is 200, which can be configured via environment variable in Orion. However 200 isn’t that many items so I’m a little surprised to see such a massive response size

I have been playing with this variable but it does not make a big difference

- name: PREFECT_API_DEFAULT_LIMIT
              value: '5'

Are you able to inspect that payload? It’d be interesting to see what’s causing that

@nicholas no gzip on anything

yeah, there is a run that received a large dataframe as input

Got it @Paco Ibañez - that tracks. Even with compression, passing around dataframes that are that large is going to be pretty cumbersome for the API to handle

compression will help in general, lots of history calls at 50/60kbs

We should cap the size of tracked parameters for sure

@Paco Ibañez - we just merged this PR which adds compression middleware to the API; it’ll go out with the next release but you can pull in the

main

branch and use it in the meantime

@nicholas cool - this not be easier on the web server?

Hi @redsquare - I’m sorry I don’t quite understand your question

sorry - I meant as in nginx/haproxy/whatever you use or similar rather than placing the burden on app middleware/python

The open-source uses uvicorn as a webserver, which afaik doesn’t have an option to do that. If you’ve got something in mind you’d like to see, feel free to open a ticket or PR with that instead

@nicholas no its cool - was just interested:)

great, thanks for the info!