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sessions lock

See original GitHub issue

Originally reported by: deecodameeko (Bitbucket: deecodameeko, GitHub: @deecodameeko)

I found an issue last night with sessions where it tries to release a lock on a session that isn’t locked.

Here’s a dump of the logs:

#!python
File "/root/.virtualenvs/web_api/lib/python2.7/site-packages/cherrypy/_cprequest.py", line 102, in run
    hook()
  File "/root/.virtualenvs/web_api/lib/python2.7/site-packages/cherrypy/_cprequest.py", line 62, in __call__
    return self.callback(**self.kwargs)
  File "/root/.virtualenvs/web_api/lib/python2.7/site-packages/cherrypy/lib/sessions.py", line 706, in close
    sess.release_lock()
  File "/root/.virtualenvs/web_api/lib/python2.7/site-packages/cherrypy/lib/sessions.py", line 479, in release_lock
    os.unlink(path + self.LOCK_SUFFIX)
OSError: [Errno 2] No such file or directory: '/san/in/api-sessions/session-b93639d62bec1e4a766e244d1a22d0bf7ebdc32c.lock'

It seems it doesn’t check if the file exists before unlinking it. Perhaps it should? I’m not sure what could cause this issue in the first place.

Bitbucket: https://bitbucket.org/cherrypy/cherrypy/issue/1193

Issue Analytics

State:
Created 11 years ago
Comments:6 (3 by maintainers)

Top GitHub Comments

1reaction

webknjazcommented, Mar 19, 2021

It seems like zc.lockfile still has this problem. While researching another issue I’ve noticed a mention of another lib at https://stackoverflow.com/a/9993103/595220: https://pypi.org/project/portalocker/ (https://github.com/WoLpH/portalocker). I’d like to try using it instead.

0reactions

webknjazcommented, Mar 21, 2021

Agreed. For now, I just wanted to document the possibility.

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