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It was and is a life saver. Our django app suffered from runaway memory leaks (quite a story). We were not able to track down the root cause exactly. There are numerous, similar issues with uvicorn or other webservers. Granian contained these problems. Multi process management is also reliable.

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What did you try to debug this?

memray and later a custom request wrapper that output python gc statistics. Our main candidates for the leak are: grpc, asgi server itself, psycopg, django channels. All leaked to some degree. Alas, it did not became clear what caused the runaway leak at 30 MB/s. Capturing flamegraphs just before OOM kills would require some more engineering. Granian contained these situations until upgradings later that year made the system more stable to begin with.

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