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cherrypy.lib.static.serve_file + sessions == apparent memory leak

See original GitHub issue

Originally reported by: Eric Atkin (Bitbucket: ericatkin, GitHub: ericatkin)

Hi, I’m running into a problem with serving large files with cherrypy.lib.static.serve_file and sessions turned on that causes cherrypy’s process to quickly use all system memory. I’ve included a sample program that demonstrates the issue below. In my case, test.ogg is a ~200MB file. If I turn off sessions, the problem goes away, but I need sessions in my webapp 😦 I’ve dug in to the cherrypy sources for a while, but got lost. Please help. I’m happy to provide more detail or testing if needed.

Many thanks, Eric Atkin

#!/usr/bin/python

import cherrypy

class Root:
    @cherrypy.expose
    def default(self, *args, **kwargs):
        return '''
<html>
    <body>
        <audio controls="controls">
            <source src="/get" type="audio/ogg" /> 
            Sorry, your browser doesn"t support HTML5 audio tags.
        </audio>
    </body>
</html>
'''

    @cherrypy.expose
    def get(self):
        return(cherrypy.lib.static.serve_file('/tmp/test.ogg', content_type='audio/ogg', disposition='attachment', name='test.ogg'))

if __name__ == '__main__':
    cherrypy.quickstart(Root(), config={
        'global': {
            'server.socket_host': '0.0.0.0',
        },
        '/': {
            'tools.sessions.on': True,
        },
    })

Bitbucket: https://bitbucket.org/cherrypy/cherrypy/issue/1147

Issue Analytics

State:
Created 11 years ago
Comments:6

Top GitHub Comments

1reaction

ghostcommented, Apr 30, 2016

Original comment by Sylvain Hellegouarch (Bitbucket: Lawouach, GitHub: Lawouach):

Though there is still a bug probably, I think this can be workaround by disabling the sessions on the static section:

#!

[/get]
tools.session.on: False

0reactions

bsimjoocommented, Mar 8, 2021

Hi, I have a similar problem.

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