[Zope] Transience read conflicts

[Dennis Allison]

setSessionVariable is a python script that hides the session
persistence mechanism but does very little else.  It may interecept 
and re-raise exceptions --

I guess what you are saying is that it interferes with the normal
processing that generates the warning message.   OPK, easily fixed.

On Fri, 18 Feb 2005, Chris McDonough wrote:

> No, from the traceback it looks like it comes out of
> setSessionVariable.py which appears to be a Python Script in another
> product or within your application directly.
> 
> - C
> 
> 
> On Fri, 2005-02-18 at 14:52 -0800, Dennis Allison wrote:
> > Thanks Chris -- looks like the raise was left in the released 2.7.3!
> > I've not yet checked the code, but that certainly is the behavior.
> > 
> > On Fri, 18 Feb 2005, Chris McDonough wrote:
> > 
> > > Nope, it's expected behavior for any application that writes to ZODB.
> > > Reraising it as an assertion error is the bug (Zope retries requests
> > > that encounter conflict errors unless you catch them).
> > > 
> > > On Fri, 2005-02-18 at 13:56 -0800, Dennis Allison wrote:
> > > > We are seeing occasional read conflicts in Transcience.
> > > > 
> > > > Traceback (innermost last):
> > > >    [...]]
> > > >   Module Products.PythonScripts.PythonScript, line 323, in _exec
> > > >   Module None, line 6, in setSessionVariable
> > > >    - <PythonScript at /setSessionVariable used for
> > > > /questionbanks/questionbank_edit/queries>
> > > >    - Line 6
> > > > AssertionError: Assignment to "currentQuestionBank" failed
> > > > database read conflict error (oid 0x1205, class
> > > > Products.Transience.TransientObject.TransientObject)
> > > > 
> > > > Zope 2.7.3
> > > > Pythn 2.3
> > > > 
> > > > Transcience apparently throws an exception rather than serialize.
> > > > Is that a bug?
> > > > 
> > > > Is this a bug?
> > > > 
> > > > 
> > > > 
> > > > _______________________________________________
> > > > Zope maillist  -  Zope at zope.org
> > > > http://mail.zope.org/mailman/listinfo/zope
> > > > **   No cross posts or HTML encoding!  **
> > > > (Related lists - 
> > > >  http://mail.zope.org/mailman/listinfo/zope-announce
> > > >  http://mail.zope.org/mailman/listinfo/zope-dev )
> > > > 
> > > 
> > 
>