September 2001 - Zope-Dev

Zope Dying
by Andre Schubert 27 Sep '01

27 Sep '01

Hi, Yesterday our Zope(2.2.5) on redhat 6.2 immunix was dying 3-4 times in about 2 hours. There are nothing to report in all the logs zope can produce. But is there a way that zope makes a core dump when he is dying unexpectly? as

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[Bug&Patch] "range" searches for "FieldIndexes" fail
by Dieter Maurer 27 Sep '01

27 Sep '01

.... affected "Zope 2.4.1 and Zope CVS (from about 1 1/2 weeks ago). Patch attached. Dieter --- PluginIndexes/common/UnIndex.py~ Fri Jun 1 20:53:40 2001 +++ PluginIndexes/common/UnIndex.py Thu Sep 27 19:09:30 2001 @@ -399,6 +399,7 @@ if record.get('range',None): opr = "range" opr_args = [] + range= record.get('range') if range.find("min")>-1: opr_args.append("min") if range.find("max")>-1: opr_args.append("max")

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Re: [Zope-dev] zcatalog and versions
by Oliver Bleutgen 27 Sep '01

27 Sep '01

Thanks for the fast reply Casey. Casey Duncan wrote: > On Thursday 27 September 2001 12:48 pm, Oliver Bleutgen allegedly wrote: >> Hi, >> I'm resending this to zope-dev because on zope >> nobody answered, it would be very nice if someone >> could step up with a small hint. >> >> >> >> Can somenone briefly explain what exactly gets >> locked in zope 2.3.3's catalog when it tries to >> index an object which is hold in a version? >> The whole catalog? > Any Btree buckets (in the indexes) which get changed get locked, which can > effectively lock out other changes to the catalog. This is a limitation of > the way the indexes are implemented, for which, sadly, there is no easy > fix. >> >> I found some answers which indicate that it has >> to do with the catalog when we see version lock errors >> where there shouldn't be any (from a naive POV). >> I would like to know how far reaching these problems >> are, because I'm currently rewriting an application, >> and I might be able to work around that. > I would suggest that if any objects are reindexed in a version, that no > cataloged objects should be reindexed in any other version until that > version > is saved. I hope I understand you correctly, but I'd say that if there's already a locked bucket, I've lost. There's no guarantee how long this particular version will stay uncommitted. I would also have to check anyhow whether there is a lock somewhere in the catalog's index. > You could also get around that by deferring the indexing until the version > is > commited, but this will take some coding on your part. This seems easier - if I'm a little bit lax about when the indexing occurs. Like making the object only index/reindex/unindex itself if it's not in a version, and combining that with a nightly cronjob which reindexes all (non-versioned) documents. With "some coding on your part" you mean making Version.py more intelligent? Like instead of just doing commitVersion(s,'') doing the following: 1) search for objects which have been deleted in the version 2) search for objects which want to catalog themselves and are locked in version s 3) unindex the objects found in 1) 4) commit version 5) index/reindex objects found in 2) Where it's not clear to me how to prevent that 3) and 5) will not itself get versioned. > Ultimately I think > that ZCatalog should do this for you, or at least somehow let indexes have > concurrent versioning (any volunteers?) I should say that I really don't grasp this ZODB voodoo, but I suspect that this will also be not too easy. AFAIK, the decision to write "in" a version (and in which) is taken deep down in zope's innards. > I am thinking about writing a fishbowl proposal for ZCatalog upgrades > sometime next month, and this is one potential problem areas to address > there, especially as things like the CMF make it more ubiquitous If I don't misunderstand how versions work (not unlikely), it might be necessary in the end rather to improve versions than the zcatalog in order to remedy this specific problem. thanks again, oliver

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zcatalog and versions
by Oliver Bleutgen 27 Sep '01

27 Sep '01

Hi, I'm resending this to zope-dev because on zope nobody answered, it would be very nice if someone could step up with a small hint. Can somenone briefly explain what exactly gets locked in zope 2.3.3's catalog when it tries to index an object which is hold in a version? The whole catalog? I found some answers which indicate that it has to do with the catalog when we see version lock errors where there shouldn't be any (from a naive POV). I would like to know how far reaching these problems are, because I'm currently rewriting an application, and I might be able to work around that. Do these problems still persist in zope 2.4.x? cheers, oliver

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by CC Computer Consulting Co. 27 Sep '01

27 Sep '01

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HTMLFile vs DTMLFile
by Dario Lopez-Kästen 27 Sep '01

27 Sep '01

Hello! Why would one want to use DTMLFile or HTMLFile, and what are the differences, benefits or drawbacks of each? Thanks in advance, /dario - wanting to understand... - -------------------------------------------------------------------- Dario Lopez-Kästen Systems Developer Chalmers Univ. of Technology dario(a)ita.chalmers.se ICQ will yield no hits IT Systems & Services

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Small bug in DTMLFile
by palomar＠sg.uji.es 27 Sep '01

27 Sep '01

Hello, (I think) there's a very small bug in 'App/special_dtml.py'. In Zope 2.4.1, the line 231 is: if bind_to in ('container', 'client'): I think it should be: if bind_to in ('container', 'context'): The problem shows when subclassing DTMLFile and trying to change the value of "_Bindings_client". The bug is also in the CVS. jdavid

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Z2.log file not showing user name correctly
by George Nguyen 27 Sep '01

27 Sep '01

I was looking in the entries in the Z2.log file and it lists the user as being "Anonymous" when I'm actually logged in as a validated user. I'm using the LDAPLoginAdapter for my top-level acl_users. I have no other acl_users folders. Any comments? George __________________________________________________ Do You Yahoo!? Get email alerts & NEW webcam video instant messaging with Yahoo! Messenger. http://im.yahoo.com

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ImportError
by Nils Wiegandt 27 Sep '01

27 Sep '01

Hello to all of you, I want to import a website written on a Windows NT machine with Zope 2.4.0 to a Solarisserver with Zope 2.4.1, but it doesn' t work!? following error ocurred: Zope Error Zope has encountered an error while publishing this resource. Error Type: ImportError Error Value: No module named Splitter Troubleshooting Suggestions The URL may be incorrect. The parameters passed to this resource may be incorrect. A resource that this resource relies on may be encountering an error. For more detailed information about the error, please refer to the HTML source for this page. If the error persists please contact the site maintainer. Thank you for your patience. Traceback (innermost last): File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 187, in publish File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/Zope/__init__.py, line 226, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 171, in publish File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_importObject) File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: manage_importObject) File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/OFS/ObjectManager.py, line 584, in manage_importObject (Object: ApplicationDefaultPermissions) File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/ZODB/ExportImport.py, line 150, in importFile File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/ZODB/Transaction.py, line 302, in commit File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/ZODB/Connection.py, line 307, in commit File /www/server/Zope-2.4.1-solaris-2.6-sparc/lib/python/ZODB/ExportImport.py, line 219, in _importDuringCommit ImportError: (see above) Thanks for help Nils

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update Zcatalog
by Johan Beauce 27 Sep '01

27 Sep '01

Hello, I use Zcatalog to index my file. This file change often. They are deleted, added or modified. I have two choices to update my ZCatalog : first when I add a file, I add the file to the catalog (but it doesn't work) <dtml-let docAdding="_.getattr(PARENTS[0], idName)"> <dtml-call "companyDoc.catalog.catalog_object(docAdding,_.string.join(docAdding.getPhys icalPath(),'/'))"> </dtml-let> when I delete a file, I delete the file from the catalog (but it doesn't work) <dtml-let docAdding="_.getattr(PARENTS[0], idName)"> <dtml-call "companyDoc.catalog.uncatalog_object(_.string.join(docAdding.getPhysicalPath (),'/'))"> </dtml-let> second clear the catalog, and create all indexes in catalog again. <dtml-tree> <dtml-if "objectValues(['File'])"> <dtml-call "companyDoc.catalog.catalog_object(id,_.string.join(docAdding.getPhysicalPat h(),'/'))" </dtml-if> </dtml-tree> Can you help me to this two solutions work please ?

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