Metaculus / Metaculus/metaculus
Gunicorn workers auto-restart 502 nginx
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@hlbmtc is already working on this.
Since Sep 1, 2025.
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Description
All these 502 errors are related to this PR, which introduced auto-restarting of Gunicorn workers every 1.5k requests. I had expected this to be good practice — to periodically free up allocated resources and guard against potential memory leaks — but it’s not working as I hoped.
I assumed Gunicorn would re-route traffic to other active workers during a restart so users wouldn’t notice, but it seems like it's actually throwing 502s during the restart window instead.
Investigate how to avoid 502 errors
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