Hi John,

Can you apply the attached diff to your Transience.py file and run with
it in place for a couple of days?  It will not fix the problem (the
symptoms will remain) but it should print some diagnostic information to
the Zope event log (the STUPID_LOG_FILE, hopefully you've got that
going) that will help us track down what this might be.

Once you notice it happen, send the relevant parts of your logfile to me
and I will see if I can analyze it.

- C




On Thu, 2003-03-13 at 15:19, John Eikenberry wrote:
> 
> Sorry, its Zope 2.6.1.
> 
> Chris McDonough wrote:
> 
> > John,
> > 
> > Which Zope 2.6?  Zope 2.6.1?  Here's what line 807 of the current
> > Transience.py looks like:
> > 
> >                 v = self._data[b].get(k, notfound)
> > 
> > Does yours look like that?
> 
> Yes.
> 
> > What is the value of the __version__ variable at the top of the
> > Transience.py file?
> 
> __version__='$Revision: 1.28.6.4 $'[11:-2]
> 
>  
> > On Thu, 2003-03-13 at 07:11, John Eikenberry wrote:
> > > Since upgrading to Zope-2.6 we've been getting KeyErrors when using
> > > Sessions. They seem to happen more now that we've started using
> > > hasSessionData(), but I'm pretty sure they happened prior to that.
> > > 
> > > Anyways, here are the 2 related tracebacks. Has anyone else seen these?
> > > 
> > > Traceback #1 occurs most frequently. The KeyError's value is an unprintable
> > > string of non-ascii characters.
> > > 
> > > * Module ZPublisher.Publish, line 150, in publish_module
> > > * Module ZPublisher.Publish, line 114, in publish
> > > * Module The application server.App.startup, line 182, in
> > >   zpublisher_exception_hook
> > > * Module ZPublisher.Publish, line 98, in publish
> > > * Module ZPublisher.mapply, line 88, in mapply
> > > * Module ZPublisher.Publish, line 39, in call_object
> > > * Module App.special_dtml, line 61, in __call__
> > > * Module DocumentTemplate.DT_String, line 474, in __call__
> > > * Module Products.Transience.Transience, line 342, in nudge
> > > * Module Products.Transience.Transience, line 467, in _getCurrentBucket
> > > * Module Products.TemporaryFolder.LowConflictConnection, line 34, in
> > >   setstate
> > > * Module Products.TemporaryFolder.TemporaryStorage, line 94, in load
> > > KeyError:
> > > 
> > > Traceback #2 happens less frequently, though today it seemed like it was
> > > trying to catch up (3 of these today).
> > > 
> > > * Module ZPublisher.Publish, line 98, in publish
> > > * Module ZPublisher.mapply, line 88, in mapply
> > > * Module ZPublisher.Publish, line 39, in call_object
> > > * Module OFS.DTMLMethod, line 126, in __call__
> > > * Module DocumentTemplate.DT_String, line 474, in __call__
> > > * Module Products.DotOrg.Pages.KContent, line 149, in __call__
> > > * Module Products.DotOrg.Pages.KContent, line 194, in getEditInfo
> > > * Module Products.DotOrg.Pages.KContent, line 506, in hasSessionData
> > > * Module Products.Sessions.SessionDataManager, line 101, in hasSessionData
> > > * Module Products.Sessions.SessionDataManager, line 175, in
> > >   _hasSessionDataObject
> > > * Module Products.Transience.Transience, line 838, in has_key
> > > * Module Products.Transience.Transience, line 807, in get
> > > 
> > > KeyError: 1047409860 
> > > 
> > > 
> > > -- 
> > > 
> > > John Eikenberry [EMAIL PROTECTED]
> > > ______________________________________________________________
> > > "A society that will trade a little liberty for a little order
> > >  will deserve neither and lose both."
> > >                                           --B. Franklin
> > > 
> > > _______________________________________________
> > > Zope-Dev maillist  -  [EMAIL PROTECTED]
> > > http://mail.zope.org/mailman/listinfo/zope-dev
> > > **  No cross posts or HTML encoding!  **
> > > (Related lists - 
> > >  http://mail.zope.org/mailman/listinfo/zope-announce
> > >  http://mail.zope.org/mailman/listinfo/zope )
> > 
> > 
> 
> -- 
> 
> John Eikenberry [EMAIL PROTECTED]
> ______________________________________________________________
> "A society that will trade a little liberty for a little order
>  will deserve neither and lose both."
>                                           --B. Franklin
> 
> _______________________________________________
> Zope-Dev maillist  -  [EMAIL PROTECTED]
> http://mail.zope.org/mailman/listinfo/zope-dev
> **  No cross posts or HTML encoding!  **
> (Related lists - 
>  http://mail.zope.org/mailman/listinfo/zope-announce
>  http://mail.zope.org/mailman/listinfo/zope )

? btreecheck.diff
? kedaipatch
Index: Transience.py
===================================================================
RCS file: /cvs-repository/Zope/lib/python/Products/Transience/Transience.py,v
retrieving revision 1.28.6.4
diff -r1.28.6.4 Transience.py
34a35
> from BTrees.check import check, display
45a47
> from cStringIO import StringIO
807c809,830
<                 v = self._data[b].get(k, notfound)
---
>                 try:
>                     v = self._data[b].get(k, notfound)
>                 except KeyError:
>                     LOG('Transience', WARNING,
>                         'KeyError raised in get, checking _data BTree')
>                     try:
>                         check(self._data)
>                         LOG('Transience', WARNING,'BTree check succeeded')
>                     except:
>                         # BTree check failed
>                         oldstdout = sys.stdout
>                         tmp = StringIO()
>                         try:
>                             sys.stdout = tmp
>                             display(self._data)
>                             tmp.seek(0)
>                             LOG('Transience', WARNING,'BTree check failed',
>                                 tmp.read(), error=sys.exc_info())
>                             tmp.close()
>                         finally:
>                             sys.stdout = oldstdout
>                     raise

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