[Zope-dev] SESSION loosing data when system has multiple users

[Chris McDonough]

What OS?  That test was written obviously to make sure the system
works... others have complained about similar issues.  I'd like to be
able to track this down, but I can't make the test fail under Red Hat
7.3.

On Fri, 2003-10-17 at 15:56, Steve Jibson wrote:
> We have been using Zope 2.7.0-beta2 and we have been having a bit of 
> trouble with SESSION loosing data when we have more than one user on the 
> system.  These problems usually show up as KeyErrors when a particular 
> data element in SESSION cannot be found.  If I set the zserver threads 
> to 1 in zope.conf, the problem seems to go away (but the system isn't 
> really usable either).  So I assumed it was a thread-safety problem in 
> the SESSION code.
> 
> I decided to be brave and take a look at the code.  To my surprize, I 
> found a test file called stresstestMultiThread.py in the 
> lib/python/Products/Sessions/stresstests directory that seemed to be the 
> exact thing I wanted to test.  It wouldn't run without a couple of minor 
> modifications, but once I got it running, with more than three or four 
> threads, the tests fail (never complete).
> 
> Is this test file still valid?  It looks like it hasn't been modified 
> for almost a year now.  If it is valid, has anyone looked into getting 
> the tests to pass.  I will probably look into it more myself, but before 
> I do, I just want to make sure I'm not headed down a dead-end street.
> 
> 
> Thanks,
> 
> Steve
> 
> P.S. - The tests failed in both the 2.7.0b2-src and the what is 
> currently in cvs.
> 
> 
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