> Hi all, I've been working day and night to convert an asp.net app to
> python using web.py. Things have been going great, but as the
> application grows, I'm starting to see this error a lot:
>
> File "/Library/Python/2.7/site-packages/web.py-0.36-py2.7.egg/web/
> session.py", line 206, in decode
> return pickle.loads(pickled)
> BadPickleGet: 321660
>
> It seems *something* is getting corrupted in the session? Once this
> starts happening, the app is completely down until I manually delete
> the files from the sessions directory.
>
> I am keeping several large objects in the session, including one huge
> xml configuration file. I need the session because reading it from
> the disk for each request takes too long.
>
> Here's my session setup line from my main class:
> session = web.session.Session(app, web.session.DiskStore('sessions'))
>
> I should also note that killing and restarting my process doesn't help
> - once the session *file* is munged, nothing works until I delete it.
>
> Anyone ever seen this behavior?
> Thanks!
Do not use file based sessions for large objects or anything where two or more
accesses to a session file could happen at the same time. File based sessions
are slow and race conditions seem to cause trouble all the time. Use a database
storage for your session data.
Bests,
Dragan
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