Memory exhaustion on large openapi schema

[ways]

https://labs.metoffice.gov.uk/edr/ serves this 1.3 MB schema: https://labs.metoffice.gov.uk/edr/api

This seems to cause schemathesis to blow up, eating all system memory. If I pause it, I end up in https://github.com/schemathesis/schemathesis/blob/4dbb4da614add94daff6e78fd213d86b453486aa/src/schemathesis/specs/openapi/references.py#L83

[ways]

This seems to be the bug: schemathesis/schemathesis#1697

[ways]

Unable to downgrade to 3.15.6 as mentioned in that issue, as it's too old and creates dependency problems.

[Stranger6667]

Hi! Have you tried v4.0.0-alpha.8? It has different internal structures so the memory consumption is much lower than with v3. I’ll investigate the details - such cases should definitely be fixed

[ways]

Hi! Have you tried v4.0.0-alpha.8? It has different internal structures so the memory consumption is much lower than with v3. I’ll investigate the details - such cases should definitely be fixed

Thanks for the heads-up!

Seems there are some changes in v4, so I couldn't do a quick test to verify. Will create an issue for upgrading.

[Stranger6667]

If anything is missing from v4, please let me know. I haven't worked much on the public Python API yet, but some older things were removed as part of planned cleanups.