[Zope-dev] Re: [ZODB-Dev] Re: BTrees strangeness (was Zope 2.X BIG Session problems - blocker - our site dies - need help of experience Zope developer, please)

[Chris McDonough]

On Mon, 2004-05-17 at 12:09, Steve Jibson wrote:
> :-(
> 
> I grabbed Transience.py and TemporaryStorage.py from the Zope-2_7-branch 
> of CVS this morning and dropped them onto one of our customer's systems. 
>   About 20 minutes later I found the following in the error_log:
> 
> ----------------------------------------
> Traceback (most recent call last):
>    File "c:\Zope-2.7\lib\python\ZPublisher\Publish.py", line 100, in 
> publish request, bind=1)
>    File "c:\Zope-2.7\lib\python\ZPublisher\mapply.py", line 88, in mapply
>      if debug is not None: return debug(object,args,context)
>    File "c:\Zope-2.7\lib\python\ZPublisher\Publish.py", line 40, in 
> call_object
>      result=apply(object,args) # Type s<cr> to step into published object.
>    File "c:\Zope-2.7\lib\python\OFS\DTMLDocument.py", line 128, in __call__
>      r=apply(HTML.__call__, (self, (client, bself), REQUEST), kw)
>    File "c:\Zope-2.7\lib\python\DocumentTemplate\DT_String.py", line 
> 474, in __call__
>      try: result = render_blocks(self._v_blocks, md)
>    File "c:\Zope-2.7\lib\python\OFS\DTMLDocument.py", line 121, in __call__
>      r=apply(HTML.__call__, (self, bself, REQUEST), kw)
>    File "c:\Zope-2.7\lib\python\DocumentTemplate\DT_String.py", line 
> 474, in __call__
>      try: result = render_blocks(self._v_blocks, md)
>    File "c:\Zope-2.7\lib\python\OFS\DTMLDocument.py", line 121, in __call__
>      r=apply(HTML.__call__, (self, bself, REQUEST), kw)
>    File "c:\Zope-2.7\lib\python\DocumentTemplate\DT_String.py", line 
> 474, in __call__
>      try: result = render_blocks(self._v_blocks, md)
>    File "c:\Zope-2.7\lib\python\DocumentTemplate\DT_Util.py", line 201, 
> in eval
>      return eval(code, d)
>    File "<string>", line 1, in <expression>
>    File "c:\Zope-2.7\lib\python\AccessControl\ZopeGuards.py", line 67, 
> in guarded_getitem
>      v = object[index]
>    File "c:\Zope-2.7\lib\python\Products\Transience\TransientObject.py", 
> line 170, in __getitem__
>      return self._container[k]
> KeyError: 'accountType'
> ----------------------------------------

This looks to me like an application error, not a Transience error.

> After getting the error, I changed them over to FileStorage.  I haven't 
> seen any errors since then.  I will be more than happy to spend some 
> time doing whatever I can to help track this down and/or test updates.

It looks like the code assumes 'accountType' is available in the
session; change it to not make that assumption (perhaps via
SESSION.get('accountType', 'default')).

- C