There is a problem regarding plone, cmf and the quickinstaller tool. I'm getting an InvalidObjectReference error after reinstalling a product with the quickinstaller a second time or several times. It looks like the error happens only after I visited the plone ui at least once but that could be concurrence. Only restarting zope stops the error until the next occurance.

Version: Python 2.3.3 (Debian testing)
         Zope 2.7 (CVS branch)
         CMF 1.4 (CVS)
         Plone 2.0

Traceback (innermost last):
Module ZPublisher.Publish, line 104, in publish
Module Zope.App.startup, line 224, in commit
Module ZODB.Transaction, line 233, in commit
Module ZODB.Transaction, line 348, in _commit_objects
Module ZODB.Connection, line 419, in commit
- __traceback_info__: (('Products.CMFCore.ActionInformation', 'ActionInformation'), '\x00\x00\x00\x00\x00\x00\x9e\xe3', '')
InvalidObjectReference: Attempt to store an object from a foreign database connection


I tried to get the object by starting zope with zopectl debug and using app._p_jar['\x00\x00\x00\x00\x00\x00\x9e\xe3'] but the object wasn't available so it seems to be a new object that is saved the first time.

After changing the pickler from cPickle to pickle:

Traceback (innermost last):
Module ZPublisher.Publish, line 104, in publish
Module Zope.App.startup, line 224, in commit
Module ZODB.Transaction, line 233, in commit
Module ZODB.Transaction, line 348, in _commit_objects
Module ZODB.Connection, line 419, in commit
- __traceback_info__: (('Products.CMFCore.ActionInformation', 'ActionInformation'), '\x00\x00\x00\x00\x00\x00\xa2G', '')
Module pickle, line 231, in dump
Module pickle, line 293, in save
Module pickle, line 663, in save_dict
Module pickle, line 695, in _batch_setitems
Module pickle, line 278, in save
InvalidObjectReference: Attempt to store an object from a foreign database connection


pickle.save():278 is calling self.persistent_id(obj) which is patched to call coptimizations.new_persistent (pickler.persistent_id=new_persistent_id(self, stack)) in ZODB.Connection.commit(). The exception itself is raised by persistent_id_call() because of (jar != Py_None && jar != self->jar) is true.

Debugging so deep into the zodb is a bit over my knowledge so I would be glad if someone could dig in, too. :)

Christian

PS: CC to plone-devel and cmf


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