Maximum recursion depth

1

I use a third party service (imageKit) for storing files sent by users, and upload is done programatically. This function has been fully functional since I hosted my app over a year ago, and it has remained functional over multiple changes. However I’ve been getting “maximum recursion depth exceeded” error lately. I don’t have any issue with this on my local machine. From my research online, manually setting the recursion limit with the line of code below solves the problem:

sys.setrecursionlimit

But i’m still getting the same issue, kindly note that my service is built on python ( with the Flask framework ), and I’m using the same version of python, flask and other dependencies on both local and remote machines.

N.B: Just discovered that the error is due to the socket server, I’m using gunicorn as my main server, flask-socktIo and gevent worker class, without the worker class the app is extremely slow , but with it I get maximum recursion depth for heavy operations, below is the line that runs the server

gunicorn -k gevent -w 1 wsgi:app

2

I found a solution here

I created a gevent_config.py file in the root , with the following code:

try:
    import gevent.monkey
    gevent.monkey.patch_all()
except ImportError:
    pass

then I used the code below as my start command:

gunicorn --config gevent_config.py -k gevent -w 1 wsgi:app

Hope this helps some one

3

Glad you found a solution. Thanks for sharing!

Regards,
Mike

Render Support Engineer, MT (UTC-6, UTC-7 in Winter)

4

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