[Zope] packing with zeo error

[Dieter Maurer]

george donnelly wrote at 2004-5-10 23:14 -0500:
>i am trying to pack a zeo-served filestorage, i brought it up as
>read-only, both the zeo server and a client and packed. after about 20
>mins it failed with this error below. can anyone make sense of this
>error for me? and perhaps suggest what i might do to get past it and
>pack my zeo-served zodb?
> ...
>  File "/usr/local/zope/270/lib/python/ZODB/referencesf.py", line 38, in
>referencesf
>    raise ValueError, 'Error unpickling, %s' % p
>ValueError: Error unpickling,
>((U^NBTrees.OIBTreeq^AU^GOIBTreeq^Btq^CNt.(((U^H^@^@^@^@^@#\x86\xe1q^D
> ...

I fear this is a difficult one.

Apparently, your "BTrees.OIBTree.OIBTree" contains something
which is not unpicklable.

To find out what is the real problem, you should log the
traceback in "ZODB/referencesf.py" near line 33 (at the start of the
"except:").

Python 2.3 also comes with a pickle utility. It is useful
to analyse pickles (and find out what might be wrong with them).

-- 
Dieter