[Zope-dev] strange overflowerror "long int too large to convert"

[Tobias Herp]

Hi,

we have a Zope-based (v2.5.0) editorial system running on a server of o=
ur
customer's; it uses a ZUserFolder to store eMail addresses of the top-l=
evel
users. Last week, an error turned up whenever the system tried to
automatically send a notification eMail, which said:

Error Type: OverflowError
Error Value: long int too large to convert

Poking around, I found that the error occurred as well when I tried to =
view
the ZUserFolder instance in the root directory. Here is the traceback:

>>
Traceback (innermost last):
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/ZPublisher/Publish.py=
,
line 150, in publish_module
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/ZPublisher/Publish.py=
,
line 114, in publish
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/Zope/__init__.py, lin=
e
158, in zpublisher_exception_hook
    (Object: acl_users_contact)
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/ZPublisher/Publish.py=
,
line 98, in publish
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/ZPublisher/mapply.py,=

line 88, in mapply
    (Object: manage_main)
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/ZPublisher/Publish.py=
,
line 39, in call_object
    (Object: manage_main)
  File
/data/opt/Zope-2.5.0-linux2-x86/lib/python/Shared/DC/Scripts/Bindings.p=
y,
line 252, in __call__
    (Object: manage_main)
  File
/data/opt/Zope-2.5.0-linux2-x86/lib/python/Shared/DC/Scripts/Bindings.p=
y,
line 283, in _bindAndExec
    (Object: manage_main)
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/App/special_dtml.py, =
line
172, in _exec
    (Object: manage_main)
  File
/data/opt/Zope-2.5.0-linux2-x86/lib/python/DocumentTemplate/DT_In.py, l=
ine
637, in renderwob
    (Object: objectItems)
  File
/data/opt/Zope-2.5.0-linux2-x86/lib/python/DocumentTemplate/DT_In.py, l=
ine
763, in sort_sequence
    (Object: objectItems)
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/ZODB/Connection.py, l=
ine
446, in setstate
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/ZODB/FileStorage.py, =
line
559, in load
    (Object: /opt/zope/var/Data.fs)
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/ZODB/FileStorage.py, =
line
547, in _load
    (Object: /opt/zope/var/Data.fs)
  File /data/opt/Zope-2.5.0-linux2-x86/lib/python/ZODB/FileStorage.py, =
line
1902, in _loadBack
OverflowError: (see above)
<<

(Zope 2.5.0 (binary release, python 2.1, linux2-x86), python 2.1.2, lin=
ux2)

Since I can't find any relation to something we did:
1. Is this error known to anyone, possibly related to a known bug of Zo=
pe
2.5.0?
2. Is it possible that the usage of ZClasses is the reason for the prob=
lem,
and that ZClasses tend to go berserk after a while? (our product contai=
ns
nested ZClasses, which is not how we'd do it today, but how we did it..=
.
the user class used by ZUserFolder is not a nested one, though)
3. Can anyone give me a hint where to search for the bug?

I'd happily provide additional info, if requested. As a workaround, we
disabled the automagic email feature, but this is not the ultimate
solution.

TIA,

Tobias Herp
--
(sorry for any unfriendly footer added automatically against my wishes.=
..
please ignore it!)



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