[Zope-dev] Attempt to store an object from a foreign database connection?

[Chris McDonough]

See  "Mounted Transient Object Container Caveats" in
http://www.zope.org/Documentation/Books/ZopeBook/2_6Edition/Sessions.stx
for an explanation.  The error you're getting means that somehow the
code is trying to store an object that has references to objects in one
ZODB database into another ZODB database (probably a mounted database). 
On Mon, 2002-12-09 at 12:50, Stefan H. Holek wrote:
> Hi All!
> 
> My situation is this: When creating CPS sites I sometimes see one of the 
> tracebacks appended below.
> 
> In its factory method (manage_addCPSSite) CPS creates two External Methods 
> (cpsinstall & cpsupdate) inside a fresh CMF portal, and then executes 
> these. During execution cpsupdate imports some components from .zexp files 
> into portal tools.
> 
> What does it mean when "the connection" is "closed"? Where does the 
> "foreign database connection" come from in the first place? Is it probably 
> not a good idea to run External Methods from inside a factory method?
> 
> I can not all too reliably reproduce this but what I do is constantly 
> create and delete CPS sites as I am customizing the mentioned External 
> Methods. I also noticed that after a restart it works for a while, and then 
> suddenly starts bombing out (after approx. 2 minutes). Once it is broken 
> the error persists and I have to restart to be able to add a CPS site again.
> 
> Happens with Zope 2.5.1 and 2.6.0 on Mac OS X and GNU/Linux
> 
> Any hints appreciated,
> Stefan
> 
> --
> 
> 2002-12-09T17:02:13 ERROR(200) SiteError 
> http://127.0.0.1:8084/manage_addProduct/NuxCPS/manage_addCPSSite
> Traceback (innermost last):
>   Module ZPublisher.Publish, line 98, in publish
>   Module ZPublisher.mapply, line 88, in mapply
>   Module ZPublisher.Publish, line 39, in call_object
>   Module Products.NuxCPS.CPSSite, line 79, in manage_addCPSSite
>   Module Products.ExternalMethod.ExternalMethod, line 231, in __call__
>    - __traceback_info__: ((), {}, None)
>   Module /Users/zope/w4/Products/NuxCPS/Extensions/cpsinstall.py, line 101, 
> in cpsinstall
>   Module ZODB.Connection, line 504, in setstate
> RuntimeError: Shouldn't load state for '\x00\x00\x00\x00\x00\x00\x1fa' when 
> the connection is closed
> 
> 
> 2002-12-08T23:30:12 ERROR(200) SiteError 
> http://127.0.0.1:8084/manage_addProduct/NuxCPS/manage_addCPSSite
> Traceback (innermost last):
>   Module ZPublisher.Publish, line 98, in publish
>   Module ZPublisher.mapply, line 88, in mapply
>   Module ZPublisher.Publish, line 39, in call_object
>   Module Products.NuxCPS.CPSSite, line 81, in manage_addCPSSite
>   Module Products.ExternalMethod.ExternalMethod, line 231, in __call__
>    - __traceback_info__: ((), {'langs_list': None}, (None,))
>   Module /Users/zope/w4/Products/NuxCPS/Extensions/cpsinstall.py, line 665, 
> in cpsupdate
>   Module /Users/zope/w4/Products/NuxCPS/Extensions/cpsinstall.py, line 53, 
> in tryimport
>   Module OFS.ObjectManager, line 546, in _importObjectFromFile
>   Module ZODB.ExportImport, line 79, in importFile
>   Module ZODB.Transaction, line 222, in commit
>   Module ZODB.Transaction, line 195, in commit
>   Module ZODB.Transaction, line 256, in _commit_objects
>   Module ZODB.Connection, line 387, in commit
>    - __traceback_info__: (('Products.CMFCore.ActionsTool', 'ActionsTool'), 
> '\x00\x00\x00\x00\x00\x00h\x11', '')
> InvalidObjectReference: Attempt to store an object from a foreign database 
> connection
> 
> 
> 2002-12-09T00:24:58 ERROR(200) SiteError 
> http://127.0.0.1:8084/manage_addProduct/NuxCPS/manage_addCPSSite
> Traceback (innermost last):
>   Module ZPublisher.Publish, line 98, in publish
>   Module ZPublisher.mapply, line 88, in mapply
>   Module ZPublisher.Publish, line 39, in call_object
>   Module Products.NuxCPS.CPSSite, line 81, in manage_addCPSSite
>   Module Products.ExternalMethod.ExternalMethod, line 231, in __call__
>    - __traceback_info__: ((), {'langs_list': None}, (None,))
>   Module /Users/zope/w4/Products/NuxCPS/Extensions/cpsinstall.py, line 665, 
> in cpsupdate
>   Module /Users/zope/w4/Products/NuxCPS/Extensions/cpsinstall.py, line 53, 
> in tryimport
>   Module OFS.ObjectManager, line 546, in _importObjectFromFile
>   Module ZODB.ExportImport, line 79, in importFile
>   Module ZODB.Transaction, line 222, in commit
>   Module ZODB.Transaction, line 195, in commit
>   Module ZODB.Transaction, line 256, in _commit_objects
>   Module ZODB.Connection, line 382, in commit
>    - __traceback_info__: (('Products.CMFCore.ActionInformation', 
> 'ActionInformation'), '\x00\x00\x00\x00\x00\x00\x97\xf3', '')
>   Module ZODB.Connection, line 507, in setstate
>   Module ZODB.TmpStore, line 49, in load
>   Module ZODB.FileStorage, line 619, in load
>   Module ZODB.FileStorage, line 593, in _load
> POSKeyError: 00000000000097f3
> 
> --
> Those who write software only for pay should go hurt some other field.
> /Erik Naggum/
> 
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