[Zope-dev] More Transience weirdness in 2.7.1b1

[Chris McDonough]

:-(

But but... I'm going to send a message to zodb-dev about this. 
Hopefully you will take pity on me Tim and answer. ;-)

- C


On Wed, 2004-06-02 at 16:01, Tim Peters wrote:
> [Steve Jibson]
> > It seems that there may still be some strangeness with Transience. We're
> > running Zope-2.7.1b1 (Python 2.3.3, Fedora Core 1)
> 
> ...
> > So, I hook-up to the ZMI and click on *temp_folder*, then click on    
> > *session_data (Session Data Container)* and I get the following error:
> >
> >    Traceback (innermost last):
> >      Module ZPublisher.Publish, line 101, in publish
> >      Module ZPublisher.mapply, line 88, in mapply
> >      Module ZPublisher.Publish, line 39, in call_object
> >      Module App.special_dtml, line 62, in __call__
> >      Module DocumentTemplate.DT_String, line 474, in __call__
> >      Module Products.Transience.Transience, line 709, in nudge
> >      Module Products.Transience.Transience, line 555, in _gc
> >    RuntimeError: the bucket being iterated changed size
> 
> FWIW, the RuntimeError is raised in the bowels of the BTree implementation,
> and can occur if someone performs a size-changing mutation on a BTree while
> iterating over the BTree.  A discussion, and concrete example, can be found
> in the "Iteration and Mutation" section (5.3.2) here:
> 
>     http://zope.org/Wikis/ZODB/FrontPage/guide/node6.html
> 
> ChrisM will be familiar with the cause <wink>.
> 
> 
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