openml / openml/OpenML

Downloading a CSV file sometimes return an error message instead of it

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Dominant language
PHP
Stars
755
Forks
128
PR merge metrics
No merged PRs in 30d

Description

I see that sometimes downloading a CSV file returns a file with contents:

Database connection error. Usually due to high server load. Please wait N seconds and try again.

and a successful (2xx) status code. I think it is fine to return such message, but status code should be some error.

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Research direction

Start by locating the PHP entry point that serves CSV downloads and reproduce the intermittent response containing the database connection error. Inspect how that response's HTTP status is selected; done means the error response no longer reports a successful 2xx status while normal CSV downloads remain successful.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
api, backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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