[ZODB-Dev] How to fix "CorruptedDataError: Error reading unknown oid. Found '' at 81036527"?

[Andreas Jung]

I have a customer site (Plone 3.0.6) causing an error during packing:

   Module ZPublisher.Publish, line 119, in publish
   Module ZPublisher.mapply, line 88, in mapply
   Module ZPublisher.Publish, line 42, in call_object
   Module <string>, line 3, in _facade
   Module AccessControl.requestmethod, line 64, in _curried
   Module App.ApplicationManager, line 431, in manage_pack
   Module ZODB.DB, line 624, in pack
   Module ZEO.ClientStorage, line 846, in pack
   Module ZEO.ServerStub, line 165, in pack
   Module ZEO.zrpc.connection, line 650, in call
CorruptedDataError: Error reading unknown oid.  Found '' at 81036527
^C2011-07-14 13:36:22 INFO SignalHandler Caught signal SIGINT
2011-07-14 13:36:22 INFO Z2 Shutting down

Using multi-zodb-gc reveals an error:

plone at web1:~/poskeyerror-check$ bin/multi-zodb-gc storage.cfg
<zc.zodbdgc.Bad instance at 0x20578c0>

plone at web1:~/poskeyerror-check$ bin/multi-zodb-check-refs storage.cfg


Using fscover.py does not help here..

plone at web1:~/poskeyerror-check$ bin/python 
./lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/fsrecover.py 
Data.fs Data2.fs
Recovering Data.fs into Data2.fs
No handlers could be found for logger "ZODB.FileStorage"
. 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8 . 9 . 0
0 bytes removed during recovery

Any more options?

Andreas
-------------- next part --------------
A non-text attachment was scrubbed...
Name: lists.vcf
Type: text/x-vcard
Size: 310 bytes
Desc: not available
Url : http://mail.zope.org/pipermail/zodb-dev/attachments/20110714/d2447c19/attachment.vcf