Hello,<br>I have a very old Zope instance (it was upgraded from Zope 2.4 to Zope 2.7 and later to Zope 2.13) that has a number of problems. There're instances of products that no longer exist, for example. They can't be removed by using any means. They can't be removed from Zope user interface (some of them aren't even visible). They can't be removed from python prompt as described in this document:<br>
<a href="http://zodb.org/documentation/articles/multi-zodb-gc.html">http://zodb.org/documentation/articles/multi-zodb-gc.html</a><br><br>The simplest script to replace broken object with some pristine object doesn't work:<br>
<div style="margin-left:40px">replace_obj = OrderedFolder('removeme')<br>replace_obj._p_oid = p64(BROKEN_OBJECT_ID)<br>replace_obj._p_jar = app._p_jar<br>app._p_jar._register(replace_obj)<br>app._p_jar._added[p64(BROKEN_OBJECT_ID)] = replace_obj<br>
</div><br>This code always fails because with the following exception:<br>ConflictError: database conflict error (oid 0x0db8, class OFS.OrderedFolder.OrderedFolder, serial this txn started with 0x00 1900-01-01 00:00:00.000000, serial currently committed 0x03384864da015019 2000-11-05 00:36:51.094952)<br>
<br>As far as I understand ConflictError is raised because transaction code always attempts to read broken object and compare it with the new object. I couldn't find any working way to remove such broken objects from the database and they often get in the way. :(<br>
<br>Is there some other way to remove them?<br>Eugene<br>