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Running out of options
by Erik Stephens 31 Jan '02

31 Jan '02

Hello, This is regarding the Zope restarting problem that's been talked about recently. We've tried TONS of different configurations: Python 2.1.x (with threads and with & without pymalloc) Zope 2.4.x (built wo_pcgi & binary installs) ZMySQLDA (with & without the Kromer patch) MySQLdb (built against the different flavors of Python) Here's our latest attempt at a stable Zope: - Python 2.1.2 (with threads and with pymalloc) - Zope 2.4.4b1 (wo_pcgi build) - ZMySQLDA (latest CVS checkout with and without the Kromer patch applied to db.py) - MySQLdb (latest CVS checkout build against Python 2.1.2) - TinyTable product (one of our patches applied) - A customizations product for removing specific restrictions on through-the-web components. Does anyone know for sure if this is a problem with ZMySQLDA or with Zope? We've been hearing talk that once 2.4.4 is released, all will be good in the hood. Are we missing the boat somewhere? Can anyone confirm that a similar setup fixed their Zope restart problems? Are there any magic option values (num threads, disable watchdog) we can be passing to z2.py that might help stop the bleeding? If it is confirmed that 2.4.4 is still hosed, then what is the recommended course of action? Down-grade to Zope 2.3.3? Cross our fingers and wait? Which is more stable right now, Zope 2.5.0 or Zope 2.4.4? Thank you, Erik

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CMF 1.2 - Can I convert Files to PortalFiles
by John_Knutson＠candle.com 31 Jan '02

31 Jan '02

I have a number (100plus - not too many but enough) of objects of type File in my zope that aren't visible under CMF 1.2. Is there any easy way to convert these into objects of type PortalFile without having to upload all of the content again. I have tried importing them, but the CMF site catalog is not updated automatically. I understand that I might have to add in the new metadata. I just want a way to avoid the uploads. I'm not a python programmer, so please don't tell me that I could write a script in a minute, but you could send me the script. John Knutson Candle Corp England

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logging crash
by Terry Kerr 30 Jan '02

30 Jan '02

Hi, I have modified ZServer/medusa/http_server.py::http_request.log() so that the host is tacked onto the end of the log file. This is so that I can track my virtual hosts. The modification is very simple...only two lines added as shown by the *: * host=self.get_header('host') self.channel.server.logger.log ( self.channel.addr[0], ' - %s [%s] "%s" %d %d "%s" "%s" "%s"\n' % ( name, self.log_date_string (time.time()), self.request, # blah...change this self.reply_code, bytes, referer, user_agent, * host ) ) However, my server is continually crashing and restarting about 4 or 5 times per day, and my log file shows up one particulary error quite regularly followed by the server crash: 2002-01-30T02:02:02 ERROR(200) ZServer uncaptured python exception, closing channel <zhttp_channel connected 24.237.103.242:4496 at 8a2b88c channel#: 5927 requests:> (exceptions.AttributeError:'None' object has no attribute 'split' [/usr/local/lib/python2.1/asyncore.py|poll|104] [/usr/local/lib/python2.1/asyncore.py|handle_write_event|393] [/usr/local/zope/Zope-2.4.3-src/ZServer/medusa/asynchat.py|handle_write|147] [/usr/local/zope/Zope-2.4.3-src/ZServer/medusa/asynchat.py|initiate_send|209] [/usr/local/zope/Zope-2.4.3-src/ZServer/medusa/asynchat.py|refill_buffer|196] [/usr/local/zope/Zope-2.4.3-src/ZServer/Producers.py|more|108] [/usr/local/zope/Zope-2.4.3-src/ZServer/medusa/http_server.py|log|287]) ------ 2002-01-30T02:02:03 ERROR(200) zdaemon zdaemon: Wed Jan 30 13:02:03 2002: Aiieee! 21875 exited with error code: 256 This hints that the server is crashing when trying to log, although I cannot figure out why. I cannot see where the 'split' comes into it. The server is getting about 50,000 hits per day. I am running 2.4.3, with python 2.1.2 on freebsd. I originally found the logging hack on the zope site somewhere and cannot find it again. Can any one explain why it would crash so often. terry -- Terry Kerr (terry(a)bizarsoftware.com.au) Chief Technical Officer Bizar Software Pty Ltd (www.bizarsoftware.com.au) +61 3 9530 9182

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OracleStorage Used in a Production Environment
by Eric Roby 30 Jan '02

30 Jan '02

Is anyone successfully using OracleStorage in a production system or (better yet) as a storage server in a ZEO configuration ? It doesn't appear that any work has been done on it for nearly 18 months. Will OracleStorage work with the DCOracle2 product in support of 9i ? Thanks in advance Eric

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Why is discussion only available in certain modes with CMF 1.2
by John_Knutson＠candle.com 30 Jan '02

30 Jan '02

Using CMF 1.2, I get different behaviour for the same object depending on how I come by it: Following the route from the Home button, when I navigate to a document, the document is opened automatically, e.g. with Word or Powerpoint Coming from Folder Contents or Search, I am first of all placed into View mode (the URL has /view appended automatically) and I get the chance to 'Reply'. I have tried this with a Manager, a Member and an Anonymous user and the behaviour doesn't change. News on the other hand, works the same regardless of how I find it. How do I impose common behaviour for files, regardless of the route? John Knutson Candle Corp England

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Defining Interfaces
by Steve Alexander 30 Jan '02

30 Jan '02

Hi folks, When I define an Interface, are the methods of the interface supposed to have "self" as the first argument? It certainly seems that way from ./lib/python/AccessControl/IUserFolder.py in Zope2. It also seems that way from the Interface Interface. However, many of the interfaces in Zope3 omit the "self" argument. -- Steve Alexander

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Exception in XML-RPC handling doesn't rollback?
by Brad Clements 30 Jan '02

30 Jan '02

I'm using a thunked_tm da (interbase, gvibDA) on Zope 2.5beta3 RH Linux 7.1 I'm handling an xml-rpc request in a PythonScript. If an exception is raised in the script after some operations have been performed on the DB, it seems that the xml-rpc exception handler does not rollback() pending transactions. In non-xmlrpc processing this works correctly, that is zodb and database transactions are rolled back by the exception handling code. I've looked at the xmlrpc code in ZPublisher, but can't quite figure out where the rollback handling should be in comparison to the regular http publisher. Can anyone suggest where I start looking so I can verify the behaviour I'm seeing and submit a patch? Brad Clements, bkc(a)murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax netmeeting: ils://ils.murkworks.com AOL-IM: BKClements

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Zope on Linux and Database as MS-SQL Server on WinNT
by Peeyush Garg 30 Jan '02

30 Jan '02

Hi, What's the current best solution to utilize the combination of Zope on Linux and Database as MS-SQL Server running on WinNT. I don't find much information searching the Zope web site. Can somebody point me to some link? Thanks, Peeyush.

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Re: [Zope-dev] Error 11
by Ahsan Imam 29 Jan '02

29 Jan '02

Did this restarting problem start with Zope 2.4.x? Was is there in 2.3.x because were are thinking of downgrading to 2.3.x? Thanks for your help >>> Chris McDonough <chrism(a)zope.com> 01/28/02 21:26 PM >>> Hmm. This doesn't look any better. ;-) I'm not sure how to tell you to get more relevant information from gdb. Ahsan Imam wrote: > Our site is so heavily dependent on the mysql connection that it would > lose majority of the functionality. > > I added the -Z"''" option and here is the command > ps axww | grep z2 looks like: > > /usr/bin/python /usr/local/zope/z2.py -z /usr/local/zope -a > zslave2.newtimes.com -Z '' -t 7 -w 8080 -p - -f - -m - -F 8889 -l > /usr/local/zslave2/var/zope.log > > gdb #0 0x4008c8a5 in __sigsuspend (set=0x415cefbc) at > ../sysdeps/unix/sysv/linux/sigsuspend.c:45 > 45 ../sysdeps/unix/sysv/linux/sigsuspend.c: No such file or > directory. > in ../sysdeps/unix/sysv/linux/sigsuspend.c > > > > > > > > > > >>>>Chris McDonough <chrism(a)zope.com> 01/28/02 16:45 PM >>> >>>> > You have a core file from the "zdaemon" process.. it's sorta useless as > a result. If you want to get a meaningful core file, run Zope without > ZDaemon (pass "-Z ''" to the start script). > > That said, we've confirmed "crashbug" problems in an installation with > mysqlda in at least one customer site. Can you make this problem happen > > without mysqlda? > > Ahsan Imam wrote: > > >>Applied the db.py patch and no success. >>Currently dowloaded and >>installed the Zope 2.4.4 beta 1 >> >>Python Version >>python 2.1.2 >> >>ZMySQLDA >> >>Here is a little excerpt from gdb >>Would the following output have any special meaning? >> >>gdb python core >> >>#0 0x4008c8a5 in __sigsuspend (set=0x415cf19c) at >>../sysdeps/unix/sysv/linux/sigsuspend.c:45 >>45 ../sysdeps/unix/sysv/linux/sigsuspend.c: No such file or >>directory. >> in ../sysdeps/unix/sysv/linux/sigsuspend.c >> >> >> >> >

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Re: Python Base Classes, ZObjectManager, and Subobjects
by Ross Patterson 29 Jan '02

29 Jan '02

Nobody's really answering and I keep getting both closer and further looking at the ZClasses code. As I understand it now, ZClasses.ZClass.createZClassForBase is supposed to address the ZClass "meta class" issues such as creating the _zclass_ in addition to the actual class and handling propertysheets. So I would assume that my error lies somewhere in there, but I can't figure it out. A few more notes, when I create a ZClass that subclasses my python base class which in turn subclasses ZClasses.ObjectManager.ZObjectManager, it creates a ZClass with a default "View" for "Subobjects". This seems to indicate that somewhere the subobjects propertysheet is being treated as an instance propertysheet rather than a propertysheet of the ZClass meta class. Also, when I create an instance from such a ZClass, trying to access the instance in the ZMI yields an authorization error. Following is the traceback: Traceback (innermost last): File /usr/Zope/lib/python/ZPublisher/Publish.py, line 150, in publish_module File /usr/Zope/lib/python/ZPublisher/Publish.py, line 114, in publish File /usr/Zope/lib/python/Zope/__init__.py, line 158, in zpublisher_exception_hook (Object: blah1) File /usr/Zope/lib/python/ZPublisher/Publish.py, line 98, in publish File /usr/Zope/lib/python/ZPublisher/mapply.py, line 88, in mapply (Object: manage_workspace) File /usr/Zope/lib/python/ZPublisher/Publish.py, line 39, in call_object (Object: manage_workspace) File /usr/Zope/lib/python/App/Management.py, line 76, in manage_workspace (Object: blah1) Unauthorized: (see above) I would assume this happens because the propertysheets/subobjects/manage method listed in the view tab is not valid for the instance, but trying to call that method on the ZClass directly returns: Traceback (innermost last): File /usr/Zope/lib/python/ZPublisher/Publish.py, line 150, in publish_module File /usr/Zope/lib/python/ZPublisher/Publish.py, line 114, in publish File /usr/Zope/lib/python/Zope/__init__.py, line 158, in zpublisher_exception_hook File /usr/Zope/lib/python/ZPublisher/Publish.py, line 89, in publish File /usr/Zope/lib/python/ZPublisher/BaseRequest.py, line 278, in traverse File /usr/Zope/lib/python/OFS/PropertySheets.py, line 601, in __bobo_traverse__ AttributeError: subobjects I have also tried the two variations in the quoted message below. Then I tried the two variations below except substituting ZClasses.ObjectManager.ZObjectManager for ZClasses.ObjectManager.ObjectManager. All with the same results Again, my goal is to be able create a ZClass that subclasses a python base class that in turn subclasses ZClasses.ObjectManager.ZObjectManager in such a way that the final ZClass and any other ZClasses that subclass it have a subobjects tab in the management view of the ZClass. Thanks. On Sun, 27 Jan 2002, Ross Patterson wrote: > I'm transitioning a product from pure ZClasses to a hybrid product python base > classes and ZClasses. So this is my first time working with python > products. > > I'm trying to setup a python base class to provide a central place to > subclass ZObjectManager and CatalogAware that I can rebase later > without the ZClass hassle. But when I try to create a ZClass in the > product and subclass to one of my python base classes, I don't get the > subobjects tab in my ZClass. > > Clearly I'm missing somthing basic here, but I have scoured the docs > and mailing lists for a clue before coming here. BTW, I did find this > post earlier that no one seemed to reply to, and below that are my > actual python files. > > ---quoted message--- > > I want to create a Python base class that inherits from the > ObjectManager and has the "Subobjects" tab in the ZClass management > screen. Inheriting from OFS.ObjectManager.ObjectManager does not do > this - I need to inherit from ZClasses.ObjectManager.ObjectManager. > > I still don't know how to have the Subobjects propertysheet thing > work. I've tried the two ways I listed in my last email of doing > this, but I can't get it to work. > > One way was: > > class MyObjectManager(ZClasses.ObjectManager.ObjectManager): > " .... " > > class ZMyObjectManager: > """Mix-in for Object Management > """ > > _zclass_=myObjectManager > > propertysheets=ZClasses.ObjectManager.ZObjectManagerPropertySheets() > > manage_options=( > {'label': 'Subobjects', 'action' > :'propertysheets/subobjects/manage'}, > ) > > and then register ZMyObjectManager as a base class in __init__.py. > The other way was: > > class MyObjectManager(ZClasses.ObjectManager.ObjectManager): > propertysheets=ZClasses.ObjectManager.ZObjectManagerPropertySheets() > > manage_options=( > {'label': 'Subobjects', 'action' > :'propertysheets/subobjects/manage'}, > ) > > and register that as the base class. Neither of them work. > > -- > Itamar S.T. itamars(a)ibm.net > > ---end quoted message--- #!/usr/bin/python # Products/ZCapitalProjects/__init__.py from ZClasses import createZClassForBase from PartBases import PartBases from PartBase import PartBase from SitePartBase import SitePartBase from ProjectPartBase import ProjectPartBase from PartBases import ZZCPObjectManager, ZCPObjectManager2, ZZCPObjectManager3, ZCPObjectManager4 createZClassForBase( PartBases, globals(), 'ZCPPartBases' ) createZClassForBase( PartBase, globals(), 'ZCPPartBase' ) createZClassForBase( SitePartBase, globals(), 'ZCPSitePartBase' ) createZClassForBase( ProjectPartBase, globals(), 'ZCPProjectPartBase' ) createZClassForBase( ZZCPObjectManager, globals(), 'ZZCPObjectManager' ) createZClassForBase( ZCPObjectManager2, globals(), 'ZCPObjectManager2' ) createZClassForBase( ZZCPObjectManager3, globals(), 'ZZCPObjectManager3' ) createZClassForBase( ZCPObjectManager4, globals(), 'ZCPObjectManager4' ) #!/usr/bin/python # Products/ZCapitalProjects/PartBases.py import ZClasses from ZClasses.ObjectManager import ZObjectManager from Products.ZCatalog.CatalogAwareness import CatalogAware class PartBases ( ZObjectManager ) : # CatalogAware, """ Base Classes for all ZCP Parts """ pass class ZCPObjectManager(ZClasses.ObjectManager.ObjectManager): " .... " class ZZCPObjectManager: """Mix-in for Object Management """ _zclass_=ZCPObjectManager propertysheets=ZClasses.ObjectManager.ZObjectManagerPropertySheets() manage_options=( {'label': 'Subobjects', 'action':'propertysheets/subobjects/manage'},) class ZCPObjectManager2(ZClasses.ObjectManager.ObjectManager): propertysheets=ZClasses.ObjectManager.ZObjectManagerPropertySheets() manage_options=( {'label': 'Subobjects', 'action' :'propertysheets/subobjects/manage'},) class ZCPObjectManager3(ZClasses.ObjectManager.ZObjectManager): " .... " class ZZCPObjectManager3: """Mix-in for Object Management """ _zclass_=ZCPObjectManager3 propertysheets=ZClasses.ObjectManager.ZObjectManagerPropertySheets() manage_options=( {'label': 'Subobjects', 'action':'propertysheets/subobjects/manage'},) class ZCPObjectManager4(ZClasses.ObjectManager.ZObjectManager): propertysheets=ZClasses.ObjectManager.ZObjectManagerPropertySheets() manage_options=( {'label': 'Subobjects', 'action' :'propertysheets/subobjects/manage'},) #!/usr/bin/python # Products/ZCapitalProjects/PartBase.py from PartBases import PartBases class PartBase ( PartBases ) : """ Base Class for ZCP Parts """ pass #!/usr/bin/python # Products/ZCapitalProjects/SitePartBases.py from PartBases import PartBases class SitePartBase ( PartBases ) : """ Base Class for ZCP Site Parts """ pass #!/usr/bin/python # Products/ZCapitalProjects/ProjectPartBases.py from PartBases import PartBases class ProjectPartBase ( PartBases ) : """ Base Class for ZCP Project Parts """ pass

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