>> What version of ZODB are you using? > > Whatever ships with Zope 2.9.8
I think that is ZODB 3.6 which is on the older side. I was simply noting that there are several invalidation fixes in ZODB 3.8; whether they fix your problem I do not know. >> If you have zeo on in debugging > > What does this mean? Turn up logging in zeo.conf to DEBUG _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev