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Zope hangs
by Nico Grubert 11 Oct '08

11 Oct '08

Hi there in the last days my Zope server seems to hang and the CPU is almost every time at 100 %. I installed DeadlockDebugger and see a lot of these entries: ----------------------------------------------------------------------------- File "/usr/local/Zope-2.10.5/lib/python/OFS/Traversable.py", line 288, in unrestrictedTraverse return obj File "/usr/local/Zope-2.10.5/lib/python/ZODB/Connection.py", line 767, in setstate raise File "/usr/local/Zope-2.10.5/lib/python/ZODB/Connection.py", line 820, in _setstate obj._p_serial = serial File "/usr/local/Zope-2.10.5/lib/python/ZODB/serialize.py", line 605, in setGhostState obj.__setstate__(state) File "/usr/local/Zope-2.10.5/lib/python/ZODB/serialize.py", line 597, in getState return unpickler.load() File "/usr/local/Zope-2.10.5/lib/python/ZODB/serialize.py", line 471, in _persistent_load return self.load_oid(reference) File "/usr/local/Zope-2.10.5/lib/python/ZODB/serialize.py", line 537, in load_oid return self._conn.get(oid) File "/usr/local/Zope-2.10.5/lib/python/ZODB/Connection.py", line 225, in get return obj File "/usr/local/Zope-2.10.5/lib/python/ZODB/FileStorage/FileStorage.py", line 562, in load self._lock_release() File "/usr/local/lib/python2.4/threading.py", line 109, in acquire return rc ----------------------------------------------------------------------------- I am wondering what the last line File "/usr/local/lib/python2.4/threading.py", line 109, in acquire return rc does exactly mean. Are the threads blocked? My configuration: -Zope 2.10.5 running with 8 threads on a 2-CPU machine with 8 GB of RAM -Python 2.4.4 -LDAPUserfolder -Silva CMS 2.0.8 -ZODB size: ~6 Gbyte -Only 6-10 people work in the CMS and no public access (spy bots, crawlers) access the Zope server Regards Nico

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VHM / traverse subpath interaction bug?
by Chris Withers 11 Oct '08

11 Oct '08

Hi All, I've tried this on Zope 2.8-2.11.1 and it behaves the same on all but feels like a bug. I wonder if anyone else agrees or, better yet, knows what's going on here... So, add a Script (Python) called test in the root on a Zope instance running on port 8080 and in it put: return repr(traverse_subpath) Now go to: http://localhost:8080/test/x/y/z ..you'll get: ['x', 'y', 'z'] ...which makes sense. Now, if you have a VHM called virtual_hosting (as it normally is) if you go to: http://localhost:8080/VirtualHostBase/https/example.com:443/test/VirtualHos… ...you'll now get: ['virtual_hosting', '/', 'x', 'y', 'z'] ...which doesn't seem right to me. Worse yet, if you go to: http://localhost:8080/VirtualHostBase/https/example.com:443/test/VirtualHos… ...you get: ['virtual_hosting', '/something', 'x', 'y', 'z'] Anyone got any ideas as to what's going on here? cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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change password through script messes up session
by Thibaud Morel l'Horset 06 Oct '08

06 Oct '08

Hello all, I'm trying to write a piece of code that just changes the password of a user as they are logged in. This is in a Script(Python). I'm using PAS and CookieCrumbler and the code is as follows: container.acl_users.users.manage_updateUserPassword(user['id'],password,password) This does work and change the password, however what happens then is anytime I try to access a resource that I could view prior to changing the password, I get a basic pop-up auth login prompt (even though I'm using CookieCrumbler), and entering the new creds doesn't work. If I logout through the login/logout link and log back in with the web form, everything is fine (and the new creds do work then). Here is the error that's thrown in the logs: Traceback (innermost last): Module ZPublisher.Publish, line 106, in publish Module ZPublisher.BaseRequest, line 468, in traverse Module ZPublisher.HTTPResponse, line 687, in unauthorized Unauthorized: <strong>You are not authorized to access this resource.</strong> So basically, I can't access any protected object until I log out and log back in. Anyone have any insight here? I've been trying to read the Plone source code to figure out how they do it but I can't get their code to work... I've been searching around for an answer to this all weekend but can't find anything :( Thanks for the help, - Teebes

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concerns with nfs
by David Bear 04 Oct '08

04 Oct '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Since I have started using vmware ESX as a hosting platform for zope, I've been mostly happy. However, I am wondering if I should have any concerns with storing the zodb on nfs. All our file systems on ESX are nfs mounted and lately we have had some interesting issues with the LAN that nfs runs on. So I'm am wondering if I should be concerned about storing the zodb on nfs mounted filesystems. - -- -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4-svn0 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFI4lSfcjLlygO2EbARAne3AJ9qQg6SZQ9yMQOKnPu38Yg6B/NbggCggnVi 5P0tQ/wxNg7wBZBhAyiuVKQ= =SD8c -----END PGP SIGNATURE-----

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FieldIndex: unindex_object tried to retrieve set x from index y but couldn't
by Chris Withers 03 Oct '08

03 Oct '08

Hi All, I'm having another problem with the Zope instance I upgraded to 2.11. I see the following every so often: FieldIndex: unindex_object tried to retrieve set DateTime('2000/03/09 13:25:10 GMT') from index date but couldn't. This should not happen. What does this mean? Which index in which catalog is emitting this and what are the consequences here? cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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anyone seen these errors with Zope 2.11.1?
by Chris Withers 03 Oct '08

03 Oct '08

Hi All, I recently ugpraded to Zope 2.11.1 and now get the following errors every so often: Module Products.PageTemplates.ZopePageTemplate, line 330, in _exec Module Products.PageTemplates.ZopePageTemplate, line 427, in pt_render Module Products.PageTemplates.PageTemplate, line 96, in pt_render Module zope.pagetemplate.pagetemplate, line 115, in pt_render - Warning: Macro expansion failed - Warning: zope.tal.taldefs.METALError: macro nesting limit (100) exceeded by u'template/macros/showbullet' Module zope.tal.talinterpreter, line 271, in __call__ Module zope.tal.talinterpreter, line 346, in interpret Module zope.tal.talinterpreter, line 534, in do_optTag_tal Module zope.tal.talinterpreter, line 516, in no_tag Module zope.tal.talinterpreter, line 346, in interpret Module zope.tal.talinterpreter, line 745, in do_insertStructure_tal Module Products.PageTemplates.Expressions, line 200, in evaluateStructure Module Products.PageTemplates.Expressions, line 232, in _handleText Module Products.PageTemplates.unicodeconflictresolver, line 69, in resolve Module zope.publisher.http, line 931, in getPreferredCharsets ValueError: too many values to unpack There appear to be two contradictory errors going on here: 1. - Warning: Macro expansion failed - Warning: zope.tal.taldefs.METALError: macro nesting limit (100) exceeded by u'template/macros/showbullet' 2. Module zope.publisher.http, line 931, in getPreferredCharsets ValueError: too many values to unpack Has anyone seen either? cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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Moving zope data.fs
by Jakob Carlsson 01 Oct '08

01 Oct '08

Hi everybody, I have two Data.fs files and the Products directory from a server that was running two Plone websites (don't know anything more about Zope or Plone versions than it was Plone 2.5.x) that I'm trying to get up and running on the new server with no access to the old installation (we re-installed the server) but I can't get it to work in any way I have tried. I can't get Zope to read the database or it will not start at all. When I tried with the universal installer for Plone 2.5.3 (I think it was this version I got the longest with) I got it to read the database files but then I get program errors on almost every page in the ZMI so I can't go on with the installation. Anybody got a clue on how to get the pages up and running again or do I have to start over and add all information manually in two new Plone pages? I'm posting it here because I see it as a Zope error because I don't get near Plone before it fails. //jakob

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Strange redirect problem -- can someone assist?
by Dennis Allison 30 Sep '08

30 Sep '08

We frequently use a design pattern which uses a multi-part form on a page. The form is populated from a RDBMS. Multiple submit buttons capture the function to be performed. The form action routine breaks into a case-like if-elif-else statement. Each action (e.g,, 'add', 'edit', 'delete') is implemented as a separate block of code. The form uses <POST> to transfer parameters (all strings or empty) to the action. The action grabs the parameters, performs its function, and then continues in the application flow as needed, transferring control using a redirect to the desired URL with appended CGI parameter. Frequently the redirect simply return to the original form for further modification. My problem: In one form for one submit button, the redirect appears to fail. The action is performed but the page to which the action redirects upon completion is never displayed. Other actions from the same form work fine. We have been trying to isolate the problem, but have not been successful--everything looks correct, but we still see the one failure. Nearly identical code in other parts of the system works fine. Any suggestions would be appreciated. Is there somthing subtle and unusual about the way Zope 2.11 manages redirects? Zope 2.11 Python 2.4.X x86_64 processor running Centos 5.1 Thanks. -d --

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A question about __setstate__ in Shared/DC/ZRDB/Connection.py
by Marco Bizzarri 30 Sep '08

30 Sep '08

Hi all. I'm working on an application which uses Zope (2.8, at the moment) and ZPsycopgDA (toghter with a number of other products). While writing an acceptance test, I encountered a strange problem: the test locks up. A further investigation shown that there were two connections at the database; one of them was not committed, the other one was blocked waiting for the other to commit. I therefore used the pdb in order to stop the execution of the test inside the connect method of the ZPsycopgDA.DA. Once I had that breakpoint, I was able to get the logs of the two transactions on the database, and I had the confirmation that indeed there were two different transactions. So, I wondered what could possibily happen, I mean why during a test there could be a second connect to the database. I issued a "bt" to see the stack of calls leading to the connect, and what I could see was that the coonect was called inside the __setstate__ method of Shared/DC/ZRDB/Connection.py. I assume therefore that the ZPsycopgDA object has been "ghostified", during the transaction. But this "assumption" is not supported by any evidence. In particular, it is not supported by my knowledge of the internal behaviour of ZODB on objects during a single transaction. Can anyone provide suggestion on this topic? Regards Marco -- Marco Bizzarri http://notenotturne.blogspot.com/ http://iliveinpisa.blogspot.com/

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delete a variable from REQUEST
by indrajit926 indra 30 Sep '08

30 Sep '08

Hi All, Iam relatively new to zope. I want to delete a variable and it value from REQUEST.I used python pop() and __delattr__() ,but getting attribute error. Hoping someboby helps me. thanks , Indrajit.

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