This should not be a problem because cron jobs are executed in their
own processes (not threads) and they should just die.
Anyway, I cannot completely exclude it either.

On Jul 6, 6:32 pm, ron_m <ron.mco...@gmail.com> wrote:
> Maybe one possibility is if your code has classes with a __del__ method in
> them, Massimo would have better perspective on if this is a possibility. If
> a class with this method is involved in a circular reference the garbage
> collector cannot clean it up because of uncertainty of execution of the
> __del__ method. This was discussed a lot on the group a few months back. I
> believe exec also has to be involved. Do a search for __del__ in the group
> to see what was said. There were also some tools mentioned in those threads
> that help with tracking down this sort of problem.
>
> I find in Python as soon as a file variable binding produced by open goes
> out of scope it is closed, you don't have to specifically call close on it.
> Normally objects are dropped as soon as the reference count reaches 0. The
> garbage collector was added to clean up the circular referenced objects that
> will never get a count down to 0 without some outside help. It searches the
> heap looking for objects that have no references except other objects also
> in the garbage and marks those as candidates to clean out. The fact that
> these file objects are piling up means something is holding the file
> reference which also cannot be cleaned up.
>
> Are you running on Linux? If so the /proc/pid_of_web2py/fd directory using
> ls -l will show you what files by name are open to the process which might
> provide some clues to which part of your code.

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