[Zope] Restart bug *and* shutdown bug

Sam Gendler sgendler@impossible.com
Wed, 12 Jan 2000 14:48:11 -0800


I will do a comprehensive test of multiple configurations in just a
bit.  I don't have time immediately, but I will get it done today.

--sam

Michel Pelletier wrote:
> 
> > -----Original Message-----
> > From: Sam Gendler [mailto:sgendler@impossible.com]
> >
> > I suspect that this is a problem caused by a race condition that only
> > occurs when you have high speed access.  I have a very fast network
> > here, and I can use any combination of machines and OSes and still see
> > the problem.
> 
> Possibly.  I can now reproduce the bug but not very consistently.  This
> is what I see with a Zope running on my machine, aldous.
> 
> If I use a browser on aldous:
> 
>   then clicking shut-down usualy shuts it down but sometimes requires me
> hitting shutdown twice.
> 
>   clicking restart cause Zope NOT to restart and *sometimes* it crashes
> (no core file though...but the process exits), and I get one of two
> error messages, either:
> 
> TypeError
> 
>  Traceback (innermost last):
> 
> <snip>
> 
>    File
> /home/michel/src/test/Zope-2.1.2-linux2-x86/lib/python/ZPublisher/BaseRe
> quest.py, line 285, in traverse
>  TypeError: unbound Python method must be called with Acquirer 1st
> argument
> 
> ****OR****
> 
> ValueError
> 
>  Traceback (innermost last):
> 
> <snip>
> 
>    File
> /home/michel/src/test/Zope-2.1.2-linux2-x86/lib/python/ZODB/FileStorage.
> py, line 593, in modifiedInVersion
>      (Object: /home/michel/src/test/Zope-2.1.2-linux2-x86/var/Data.fs)
>  ValueError: I/O operation on closed file
> 
> in the case of getting *either* error message, I get this in the Zope
> log:
> 
> ------
> 2000-01-12T21:27:28 ERROR(200) ZODB Couldn't load state for
> '\000\000\000\000\000\000\000\005'
> 
> If I run a browser on another machine called korak:
> 
>   clicking shutdown causes the Zope process to exit
> 
>   clicking restart causes the Zope process to exit also
> 
> Can someone verify that this is also the case for them?  Or do other
> people have different symptoms?
> 
> -Michel
> 
> 
> 
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