[Zope] BUG: subtransaction not handled correctly in manage_addFile
Dear all, Does anyone fancy earning a bit of pocket money? I've got a Zope problem that I can't solve because my Python isn't good enough and my understanding of the ZODB is pretty much still zero. We've got a simple Zope application that allows users to upload files without going near the Zope management screens. For more information on this and what the problem is, see: http://www.egroups.com/message/zope/48084 The basic thrust is that when a large file is uploaded and subtransactions are needed, something goes wrong. Dieter Maurer sent a reply helpful reply (thanks Dieter) that's archived at: http://www.egroups.com/message/zope/48116 In it, he said: On the other hand, the bug is triggered by something. I would expect, it is an exception in "ZODB.Transaction:261", AttributeError "commit_sub". You can verify this, if you put an "import traceback; traceback.print_exc()" below line 270. Problably some non-subtransaction object managed to enter in "subjars". Sure enough, Dieter was right. I get: Traceback (innermost last): File "/usr/local/zope/lib/python/ZODB/Transaction.py", line 261, in commit j.commit_sub(self) AttributeError: commit_sub Dieter told me to file a bug report (and he's told a couple of other people the same thing since) but I haven't yet because I'm having trouble replicating the problem. I can't replicate it by just copying the two salient methods to a fresh Zope installation of Zope 2.2.5. Other messages (e.g. http://www.egroups.com/message/zope/48492 ) made me suspect that it was a problem with a Product, but installing the Products I'm using (SiteAccess, ZOracleDA, ZPyGreSQLDA and smbUserFolder) to this fresh installation didn't replicate the bug. I only see it if I copy over the Data.fs from the original installation. Other people seem to have come across the same problem in different contexts. Have a look at: http://groups.yahoo.com/group/zope/messagesearch?query=commit_sub We need to get this fixed ASAP so my boss has told me to send this message to the list and offer 400 pounds (sterling) to anyone who can fix this bug. Any takers? Cheers, Ian ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] BUG: subtransaction not handled correctly in manage_addFile
Ian Sealy wrote: We need to get this fixed ASAP so my boss has told me to send this message to the list and offer 400 pounds (sterling) to anyone who can fix this bug. Any takers? What version of Zope are you using? cheers, Chris ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] BUG: subtransaction not handled correctly in manage_addFile
Dear Chris, We need to get this fixed ASAP so my boss has told me to send this message to the list and offer 400 pounds (sterling) to anyone who can fix this bug. Any takers? What version of Zope are you using? 2.2.5 on Red Hat 6.2. Zope version: Zope 2.2.5 (source release, python 1.5.2, linux2) Python version: 1.5.2 (#1, Nov 18 2000, 20:03:24) [GCC egcs-2.91.66 19990314/Linux (egcs- System Platform: linux2 Cheers, Ian ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
[Zope] BUG: subtransaction not handled correctly in manage_addFile(was: [Zope] Re: manage_addFile problem) (was: [Zope] Re: manage_addFile problem)
Ian Sealy writes: I sent the following message to the list just before Christmas, but didn't get any replies. You probably did not get an answer because it is extremely difficult to see the problem cause. Apparently, the upload was successful and resulted in some subtransaction (because your file was large). Later an exception occured during the commit. Zope tries to abort the associated transaction. During this abort, Zope hits the subtransactions and wants to abort them calling "abort_sub" on them. However, at least one of the subtransaction objects does not have this method. This results in your backtrace. Apparently, there is a Zope bug in the subtransaction handling or their abort. Please file a bug report into the Collector. On the other hand, the bug is triggered by something. I would expect, it is an exception in "ZODB.Transaction:261", AttributeError "commit_sub". You can verify this, if you put an "import traceback; traceback.print_exc()" below line 270. Problably some non-subtransaction object managed to enter in "subjars". I can't tell you why. Dieter ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
