Memory leak in pydantic model_validate from sqlalchemy model

[pmithrandir]

Memory leak in pydantic model_validate from sqlalchemy model

[pmithrandir]

Hi,

I'll wait for his feedback.
On a note side, when calling get_referrers on the pydantic_object, I get a link to the orm object.
Doesn't look OK.

[pmithrandir]

Hi,

We tested on windows with 3.11.5, 3.11.6 and 3.11.9 and it's failing each time.

On our linux server, it passes on 3.11.5.
It looks like python is not behaving the same way on windows and linux.

[sydney-runkle]

@pmithrandir,

Thanks for the report. I haven't taken an in-depth look yet, but maybe @davidhewitt has some insight.

[pmithrandir]

Hello @davidhewitt do you have any hint to share ?

[davidhewitt]

I have taken a brief look but I cannot reproduce this on any combination of sqlalchemy 1.4 or 2, Python 3.11 or 3.12 or pydantic 2.7 or main.

If you have another example of what you think is the problematic interaction I can take a further look.

[pmithrandir]

Hello,

Thank you for testing it.

You mean that the test passes on your configuration ?

We have sql alchemy 1.4, pydantic 2.7.1 and python 3.11.5 on windows. (servers on red hat)

My expected result would be that all memory is freed up after the pydantic object if removed.

If you could share your python version, it could be nice. Would help me to test if something changes depends on that.

Rergards,
Pierre

[davidhewitt]

To check, you're testing on Windows? I tried 3.11 and 3.12, both on Ubuntu.

[davidhewitt]

(Yes, the test passes for me)

[pmithrandir]

which version of 3.11 are you using please ?
I'll try with the same one to see if something pops up

[davidhewitt]

3.11.6

[davidhewitt]

I will try to reproduce on Windows some time soon, most likely next week.