Re: [Zope-dev] How to add sections to zope.conf?
Dieter Maurer wrote: You must extend the "zopeschema.xml" or let your process use a schema derived from "zopeschema.xml" (schema support some form of inheritance). Is there any way for a Product to do this or do I actually have to go and manually spank zopeschema.xml when I install my product? Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Making a ZSQL.DA fully multi-threaded?
Brad Clements wrote: On 9 Jul 2004 at 21:17, Dieter Maurer wrote: Check whether the connection is maintained in a "_v_" attribute (in this case, it is per thread). Otherwise, the connection would need to be maintained in a module global registry indexed with a DA id (e.g. its ZODB path). This is the deep magic of which my previous note speaks. Where are these details documented (in general terms, not just about DA's), so that I can figure this out without bugging the list too much? Just checking: you do know that each thread in ZODB gets what appears to it to be it's own copy of the ZODB right? So, even though there's only one connection stored in the class of the DA, that'll mean there's one DA connection opened up per Zope thread. This often means that many more database connections are opened than are actually necessary. And if you start timing out inactive database connectiosn on the database side, you're in for a world of pain and suffering. I branched ZOracleDA some time ago to move away from this model for that very reason... What's the actual problem you're experiencing? Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] manage_afterAdd +webdav + two times called
Hi all, zope2.7.2-RC1 cmf 1.4.4 i tried and tested a bit around with webdav and noticed that manage_afterAdd is called two times in putting a file into Plone . Yea i know this is not the list for Plone but i think this is more a problem from zope, webdav and cmf. File "/var/lib/zope271/lib/python/webdav/NullResource.py", line 110, in PUT ob = factory(name, typ, body) __ File "/var/lib/zope271/lib/python/webdav/NullResource.py", line 127, in PUT self.__parent__._setObject(name, ob) These two lines from the traceback are the mainproblem i think. First manage manage_afterAdd will be called after creating the Object and second it is called after writing the object into zodb. Is this intended that manage_afterAdd is called two times?? Shouldn't it only called after writing the data to zodb. Below i posted the whole traceback wich was produced. Greetings Kai File "/var/lib/zope271/lib/python/ZServer/PubCore/ZServerPublisher.py", line 23, in __init__ response=response) File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 389, in publish_module environ, debug, request, response) File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 180, in publish_module_standard response = publish(request, module_name, after_list, debug=debug) File "/var/lib/zope271/instance/default/Products/PlacelessTranslationService/PatchStringIO.py", line 51, in new_publish x = Publish.old_publish(request, module_name, after_list, debug) File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 101, in publish request, bind=1) File "/var/lib/zope271/lib/python/ZPublisher/mapply.py", line 88, in mapply if debug is not None: return debug(object,args,context) File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 39, in call_object result=apply(object,args) # Type s to step into published object. File "/var/lib/zope271/lib/python/webdav/NullResource.py", line 110, in PUT ob = factory(name, typ, body) File "/var/lib/zope271/instance/default/Products/CMFCore/PortalFolder.py", line 336, in PUT_factory self.invokeFactory( typeObjectName, name ) File "/var/lib/zope271/instance/default/Products/CMFCore/PortalFolder.py", line 363, in invokeFactory , kw File "/var/lib/zope271/instance/default/Products/CMFCore/TypesTool.py", line 709, in constructContent ob = apply(info.constructInstance, (container, id) + args, kw) File "/var/lib/zope271/instance/default/Products/CMFCore/TypesTool.py", line 398, in constructInstance id = apply( m, args, kw ) or id # allow factory to munge ID File "", line 4, in addVCard File "/var/lib/zope271/lib/python/OFS/ObjectManager.py", line 276, in _setObject object.manage_afterAdd(object, self) File "/var/lib/zope271/instance/default/Products/VCard/VCard.py", line 239, in manage_afterAdd print print_stack() None File "/var/lib/zope271/lib/python/ZServer/PubCore/ZServerPublisher.py", line 23, in __init__ response=response) File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 389, in publish_module environ, debug, request, response) File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 180, in publish_module_standard response = publish(request, module_name, after_list, debug=debug) File "/var/lib/zope271/instance/default/Products/PlacelessTranslationService/PatchStringIO.py", line 51, in new_publish x = Publish.old_publish(request, module_name, after_list, debug) File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 101, in publish request, bind=1) File "/var/lib/zope271/lib/python/ZPublisher/mapply.py", line 88, in mapply if debug is not None: return debug(object,args,context) File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 39, in call_object result=apply(object,args) # Type s to step into published object. File "/var/lib/zope271/lib/python/webdav/NullResource.py", line 127, in PUT self.__parent__._setObject(name, ob) File "/var/lib/zope271/lib/python/OFS/ObjectManager.py", line 276, in _setObject object.manage_afterAdd(object, self) File "/var/lib/zope271/instance/default/Products/VCard/VCard.py", line 239, in manage_afterAdd print print_stack() ___ tomcom Gesellschaft für Informationstechnologie mbH Heuriedweg 14 | D-88131 Lindau Fon +49 (0)8382 975844 | Fax +49 (0)8382 975855 [EMAIL PROTECTED] | http://www.tomcom.de This document should only be read by those persons to whom it is addressed and is not intended to be relied upon by any person without subsequent written confirmation of its contents. tomcom disclaims all responsibility and accepts no liability for the consequences of any person acting, or refraining from acting on the contents of this document. Any unauthorised form of dissemination, copying, disclosure, modification, distrib
Re: [Zope-dev] Granularity of Persistent Objects
Ian Beatty wrote: However, I don't know how to do this. Is it as simple as using a PersistentMapping where I'd normally use a standard Python dictionary? Well, yes. Or shall I wrap each one in a custom class that subclasses Persistent? That is usually an even better idea. And for big dictionaries, you may want to use the BTree objects for storage. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] mount a plonesite with zeo storage
hi, I'm just try to use Zope 2.7 and Plone with zeo storage support. and I would like to put a CMFPlone site into a zeo client storage to mount in a zope instance. I have added in my zeo.conf path $INSTANCE/var/plonesite.fs and in zope.conf mount-point /plonesite container-class Products.CMFPlone.Portal.PlonSite server localhost: storage plonesite name plonesite cache-size 2 client cache var $INSTANCE/var I start the zeo with runzeo and the zeo client storage plonesite.fs is created... I start zope, but when i try to add a ZODB Mount Point, I get a Zope Folder instead of a Plone Site, why the container-class rule doesn't work? Or there is another way to add a new plonesite as zeo client storage? Thanks, in advance... Martino <>___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Granularity of Persistent Objects
> > Or shall I wrap each one in a custom class that subclasses Persistent? > > That is usually an even better idea. And for big dictionaries, you may > want to use the BTree objects for storage. So in my containing class, I just have class MyContainer( Persistent ): subObject = None def __init__( self ): self.subObject = BTree() and etc.? That's all there is to it?? Thanks, ..Ian ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] manage_afterAdd +webdav + two times called
Could you add this as a bug in the collector please ? http://collector.zope.org/Zope Florent In article <[EMAIL PROTECTED]> you write: > Hi all, > > zope2.7.2-RC1 > cmf 1.4.4 > > i tried and tested a bit around with webdav and noticed that manage_afterAdd > is called two times in putting a file into Plone . Yea i know this is not the > list for Plone but i think this is more a problem from zope, webdav and cmf. > > File "/var/lib/zope271/lib/python/webdav/NullResource.py", line 110, in PUT > ob = factory(name, typ, body) > > __ > > File "/var/lib/zope271/lib/python/webdav/NullResource.py", line 127, in PUT > self.__parent__._setObject(name, ob) > > These two lines from the traceback are the mainproblem i think. First manage > manage_afterAdd will be called after creating the Object and second it is > called after writing the object into zodb. > > Is this intended that manage_afterAdd is called two times?? Shouldn't it only > called after writing the data to zodb. > > Below i posted the whole traceback wich was produced. > > Greetings Kai > > File "/var/lib/zope271/lib/python/ZServer/PubCore/ZServerPublisher.py", > line 23, in __init__ > response=response) > File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 389, in > publish_module > environ, debug, request, response) > File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 180, in > publish_module_standard > response = publish(request, module_name, after_list, debug=debug) > File > "/var/lib/zope271/instance/default/Products/PlacelessTranslationService/PatchStringIO.py", > line 51, in new_publish > x = Publish.old_publish(request, module_name, after_list, debug) > File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 101, in publish > request, bind=1) > File "/var/lib/zope271/lib/python/ZPublisher/mapply.py", line 88, in mapply > if debug is not None: return debug(object,args,context) > File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 39, in > call_object > result=apply(object,args) # Type s to step into published object. > File "/var/lib/zope271/lib/python/webdav/NullResource.py", line 110, in PUT > ob = factory(name, typ, body) > File "/var/lib/zope271/instance/default/Products/CMFCore/PortalFolder.py", > line 336, in PUT_factory > self.invokeFactory( typeObjectName, name ) > File "/var/lib/zope271/instance/default/Products/CMFCore/PortalFolder.py", > line 363, in invokeFactory > , kw > File "/var/lib/zope271/instance/default/Products/CMFCore/TypesTool.py", > line 709, in constructContent > ob = apply(info.constructInstance, (container, id) + args, kw) > File "/var/lib/zope271/instance/default/Products/CMFCore/TypesTool.py", > line 398, in constructInstance > id = apply( m, args, kw ) or id # allow factory to munge ID > File "", line 4, in addVCard > File "/var/lib/zope271/lib/python/OFS/ObjectManager.py", line 276, in > _setObject > object.manage_afterAdd(object, self) > File "/var/lib/zope271/instance/default/Products/VCard/VCard.py", line 239, > in manage_afterAdd > print print_stack() > None > > File "/var/lib/zope271/lib/python/ZServer/PubCore/ZServerPublisher.py", > line 23, in __init__ > response=response) > File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 389, in > publish_module > environ, debug, request, response) > File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 180, in > publish_module_standard > response = publish(request, module_name, after_list, debug=debug) > File > "/var/lib/zope271/instance/default/Products/PlacelessTranslationService/PatchStringIO.py", > line 51, in new_publish > x = Publish.old_publish(request, module_name, after_list, debug) > File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 101, in publish > request, bind=1) > File "/var/lib/zope271/lib/python/ZPublisher/mapply.py", line 88, in mapply > if debug is not None: return debug(object,args,context) > File "/var/lib/zope271/lib/python/ZPublisher/Publish.py", line 39, in > call_object > result=apply(object,args) # Type s to step into published object. > File "/var/lib/zope271/lib/python/webdav/NullResource.py", line 127, in PUT > self.__parent__._setObject(name, ob) > File "/var/lib/zope271/lib/python/OFS/ObjectManager.py", line 276, in > _setObject > object.manage_afterAdd(object, self) > File "/var/lib/zope271/instance/default/Products/VCard/VCard.py", line 239, > in manage_afterAdd > print print_stack() > ___ > tomcom Gesellschaft für Informationstechnologie mbH > Heuriedweg 14 | D-88131 Lindau > Fon +49 (0)8382 975844 | Fax +49 (0)8382 975855 > [EMAIL PROTECTED] | http://www.tomcom.de > > This document should only be read by those persons to whom it is addressed > and is not intended to be re
[Zope-dev] Re: [ZODB-Dev] Getting rid of ZODB versions (was Re: [ZWeb] Are Versions evil?)
On Thu, Jul 15, 2004 at 06:09:29PM -0400, Jim Fulton wrote: > >Locks are important, however, in cases such as generating unique IDs > >based on integer attributes in a database. > > I don't know what this is. Well, let's say I wanted to have a unique ID for payments (people want to refer to them for number) -- each payment instance created should have its own ID. > > This is something we never > >managed to sort out in IndexedCatalog, and I wonder if anyone else > >ever has. > > In the regular catalog, we pick ids and let normal time-stamp-based > concurrency control tell us when there is a conflict. Yes, but then you need to change IDs at commit time. If I want to start a transaction by showing the user a certain unique ID that was allocated, I run the risk of having to tell him "oh, sorry, we conflicted on that ID, I need to give you another one". > The database itself uses a short-lived lock to generate oids. Functionality which would be interesting if it were publically available to solve the aforementioned problem. Take care, -- Christian Robottom Reis | http://async.com.br/~kiko/ | [+55 16] 3361 2331 ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Granularity of Persistent Objects
In article <[EMAIL PROTECTED]> you write: > > > Or shall I wrap each one in a custom class that subclasses Persistent? > > > > That is usually an even better idea. And for big dictionaries, you may > > want to use the BTree objects for storage. > > So in my containing class, I just have > > class MyContainer( Persistent ): > subObject = None > def __init__( self ): > self.subObject = BTree() > > and etc.? That's all there is to it?? Yes, that's it. You can even store BTree's in BTree's if you fancy :) Florent > -- Florent Guillaume, Nuxeo (Paris, France) +33 1 40 33 79 87 http://nuxeo.com mailto:[EMAIL PROTECTED] ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Making a ZSQL.DA fully multi-threaded?
On 16 Jul 2004 at 8:57, Chris Withers wrote: > This often means that many more database connections are opened than are > actually necessary. And if you start timing out inactive database > connectiosn on the database side, you're in for a world of pain and > suffering. > > I branched ZOracleDA some time ago to move away from this model for that > very reason... > > What's the actual problem you're experiencing? I have set the SAPDB timeout to 32400 seconds. However when running with more than 1 thread I still get "mysterious segfaults" in the sapdbapi component. The SAP folks say their adapter is "multi-thread capable", but I've come to believe that only means that it's ok to open a connection in one thread and use it in another, but NOT to have 2 threads make requests on the same connection at the same time. Also, two threads can' t open a connection "at the same time" because their connection table management isn't "thread safe". What I need, I suppose, is a DB connection pool mechanism of some kind. I also have Python extensions that need a connection as well. Getting the actual database connection from a DA stinks (ie, it's not really possible). I'd like to see an API extension to ZopeDA's to allow Pythonscripts, Products and external methods get an actual db connection. But that I suppose is a problem to solve later. I think I will take a look at ZOracleDA to see what you did. -- Brad Clements,[EMAIL PROTECTED] (315)268-1000 http://www.murkworks.com (315)268-9812 Fax http://www.wecanstopspam.org/ AOL-IM: BKClements ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] zope 2.7.1 on xp profesional
<> I get this error on running runzope installed on xp profesional ibm thinkpad. Any idea what is happening ? cj C:\Zope-Instance\bin>runzope.bat>c:\zopeError.txt C:\Program Files\Zope-2.7.1\bin\lib\fcntl.py:7: DeprecationWarning: the FCNTL mo dule is deprecated; please use fcntl DeprecationWarning) -- 2004-07-16T21:50:47 INFO(0) ZServer HTTP server started at Fri Jul 16 21:50:47 2 004 Hostname: IBM-CD24ABFA02F Port: 8080 -- 2004-07-16T21:50:47 INFO(0) ZServer FTP server started at Fri Jul 16 21:50:47 20 04 Hostname: IBM-CD24ABFA02F Port: 8021 Traceback (most recent call last): File "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\run.py", line 50, in ? run() File "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\run.py", line 19, in run start_zope(opts.configroot) File "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\__init__.py", line 4 9, in start_zope starter.makeLockFile() File "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\__init__.py", line 2 51, in makeLockFile lock_file(self.lockfile) File "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\misc\lock_file.py", line 40, in lock_file fcntl.flock(file, fcntl.LOCK_EX | fcntl.LOCK_NB) AttributeError: 'module' object has no attribute 'flock' C:\Zope-Instance\bin> C:\Zope-Instance\bin>"C:\Program Files\Zope-2.7.1\bin\python.exe" "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\run.py" -C "C:\Zope-Instance\etc\zope.conf" ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Making a ZSQL.DA fully multi-threaded?
On Fri, 16 Jul 2004 10:36:27 -0400, Brad Clements <[EMAIL PROTECTED]> wrote: > The SAP folks say their adapter is "multi-thread capable", but I've come to believe > that only > means that it's ok to open a connection in one thread and use it in another, but NOT > to have > 2 threads make requests on the same connection at the same time. I would be surprised to find any database API that allowed that. Generally "thread-safe" means that there are no global state variables, i.e. all connection state is encapsulated in the connection object/struct. Generally I would not try to share connections between threads at all. To do it, you'd need to ensure that a thread performs a commit or rollback on the connection before another thread can use it, i.e. performs a complete transaction or none at all. Otherwise you will have all sorts of interesting problems. > Also, two threads can' t open a connection "at the same time" because their > connection table > management isn't "thread safe". That does suck, but it doesn't seem like an insurmountable problem for a DA. You just need a per-DA instance mutex which you acquire before opening a connection release afterwards. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] zope 2.7.1 on xp profesional
I get this error on running runzope installed on xp profesional ibm thinkpad. Any idea what is happening ? cj C:\Zope-Instance\bin>runzope.bat>c:\zopeError.txt C:\Program Files\Zope-2.7.1\bin\lib\fcntl.py:7: DeprecationWarning: the FCNTL mo dule is deprecated; please use fcntl DeprecationWarning) -- 2004-07-16T21:50:47 INFO(0) ZServer HTTP server started at Fri Jul 16 21:50:47 2 004 Hostname: IBM-CD24ABFA02F Port: 8080 -- 2004-07-16T21:50:47 INFO(0) ZServer FTP server started at Fri Jul 16 21:50:47 20 04 Hostname: IBM-CD24ABFA02F Port: 8021 Traceback (most recent call last): File "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\run.py", line 50, in ? run() File "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\run.py", line 19, in run start_zope(opts.configroot) File "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\__init__.py", line 4 9, in start_zope starter.makeLockFile() File "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\__init__.py", line 2 51, in makeLockFile lock_file(self.lockfile) File "C:\Program Files\Zope-2.7.1\lib\python\Zope\Startup\misc\lock_file.py", line 40, in lock_file fcntl.flock(file, fcntl.LOCK_EX | fcntl.LOCK_NB) AttributeError: 'module' object has no attribute 'flock' C:\Zope-Instance\bin> ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Making a ZSQL.DA fully multi-threaded?
sqlrelay seems to hold some promise for connection pooling although I am not sure if theres support for sapdb Brad Clements wrote: On 16 Jul 2004 at 8:57, Chris Withers wrote: This often means that many more database connections are opened than are actually necessary. And if you start timing out inactive database connectiosn on the database side, you're in for a world of pain and suffering. I branched ZOracleDA some time ago to move away from this model for that very reason... What's the actual problem you're experiencing? I have set the SAPDB timeout to 32400 seconds. However when running with more than 1 thread I still get "mysterious segfaults" in the sapdbapi component. The SAP folks say their adapter is "multi-thread capable", but I've come to believe that only means that it's ok to open a connection in one thread and use it in another, but NOT to have 2 threads make requests on the same connection at the same time. Also, two threads can' t open a connection "at the same time" because their connection table management isn't "thread safe". What I need, I suppose, is a DB connection pool mechanism of some kind. I also have Python extensions that need a connection as well. Getting the actual database connection from a DA stinks (ie, it's not really possible). I'd like to see an API extension to ZopeDA's to allow Pythonscripts, Products and external methods get an actual db connection. But that I suppose is a problem to solve later. I think I will take a look at ZOracleDA to see what you did. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] zope 2.7.1 on xp profesional
[Chris Johnson] > I get this error on running runzope installed on xp profesional ibm > thinkpad. > > Any idea what is happening ? > > cj > > > C:\Zope-Instance\bin>runzope.bat>c:\zopeError.txt > C:\Program Files\Zope-2.7.1\bin\lib\fcntl.py:7: DeprecationWarning: the FCNTL module > is deprecated; please use fcntl You're in trouble there already. There shouldn't be a module named fcntl.py in your installation. There *should* be a module named FCNTL.py instead. The case is important. Here from a fresh 2.7.1 installation on Windows: C:\Program Files\Zope-2.7.1\bin\Lib>dir/b fc* FCNTL.py FCNTL.pyc C:\Program Files\Zope-2.7.1\bin\Lib> That's correct. Can't guess how you got into this trouble. Unlikely: if you have an environment variable named PYTHONCASEOK, get rid of it. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Making a ZSQL.DA fully multi-threaded?
On 16 Jul 2004 at 11:38, Andy Dustman wrote: > > Also, two threads can' t open a connection "at the same time" because > > their connection table management isn't "thread safe". > > That does suck, but it doesn't seem like an insurmountable problem for a > DA. You just need a per-DA instance mutex which you acquire before opening > a connection release afterwards. Someone else said that every thread has it's own copy of ZODB, hence their own copies of each DA. So putting the mutex on the DA won't help this, will it? -- Brad Clements,[EMAIL PROTECTED] (315)268-1000 http://www.murkworks.com (315)268-9812 Fax http://www.wecanstopspam.org/ AOL-IM: BKClements ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Where are all the good docs?
I've recently persuaded my company and our clients that Zope is THE way to go for Portal software. Now I find myself having to hack away at sources more and more to meed their needs. With that in mind, how can I find out something like what functions can be called from the context object? I've noticed context.absolute_url() and a few others but I find myself sorely lacking the ability to look up member methods for Zope objects. Where do I go for info? -- Regards, Bryan Simmons -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- What is this "sleep" of which you speak? -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: "RewriteMap"s inefficient (was: [Zope-dev] Apache Mod_rewrite question)
Ganesha Shanmuganathan wrote at 2004-7-15 15:57 -0500: > ... RewriteMap files with the same name are identified ... >That is strange! It looks like a bug in mod_rewrite then. I checked the >source and found that it does compare by map name. Thanks for your >feedback But the cache is not taken from a global variable but resolved via a local resource. I am not sure what this local resource is (I am no Apache expert). But, I expect that it is virtual host specific. -- Dieter ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] How to add sections to zope.conf?
Chris Withers wrote at 2004-7-16 08:52 +0100: >Dieter Maurer wrote: >> You must extend the "zopeschema.xml" or let your process use >> a schema derived from "zopeschema.xml" (schema support some form >> of inheritance). > >Is there any way for a Product to do this or do I actually have to go and >manually spank zopeschema.xml when I install my product? Hm: was the sentence not clear? Yes, you either must change "zopeschema.xml" or use a different one (which may inherit from "zopeschema.xml"). There is also a way for the class interpreting the schema to add configuration options not present in the schema. See the "add" method in "zdaemon.zdoptions.ZDOptions". Zope currently does not provide a registration facility to use this way by products. Of course, you can change the code... -- Dieter ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] manage_afterAdd +webdav + two times called
Kai Hoppert wrote at 2004-7-16 10:54 +0200: >zope2.7.2-RC1 >cmf 1.4.4 > >i tried and tested a bit around with webdav and noticed that manage_afterAdd is >called two times in putting a file into Plone . Yea i know this is not the list for >Plone but i think this is more a problem from zope, webdav and cmf. > > File "/var/lib/zope271/lib/python/webdav/NullResource.py", line 110, in PUT >ob = factory(name, typ, body) > >__ > >File "/var/lib/zope271/lib/python/webdav/NullResource.py", line 127, in PUT >self.__parent__._setObject(name, ob) > >These two lines from the traceback are the mainproblem i think. First manage >manage_afterAdd will be called after creating the Object and second it is called >after writing the object into zodb. I am sure "manage_afterAdd" is only called in "_setObject" (which writes the object to ZODB -- in some sense; the actual write happens only during commit). "manage_afterAdd" is not called before "_setObject". -- Dieter ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: [ZODB-Dev] Getting rid of ZODB versions (was Re: [ZWeb] Are Versions evil?)
Jim Fulton wrote at 2004-7-15 17:18 -0400: >Dieter Maurer wrote: >I don't think anyone find versions useful in cases where >locks matter. With versions, if you get resource contention, >someone loses. Yes, but hopefully the short running (inexpensive) and not the long running (expensive) process... >Long-running subtransactions as I'm proposing would rely on mult-version >concurrency control, rather than locks. MVCC is nice (we already use it) but its help for write contention is limited. The locks used by the current "Version"s are better suited for long running transactions. > In either case, if you have >resource contention, you are probably out of luck. Luck is not a binary concept ;-) Our current most essential use case for "Version"s is reindexing large catalogs. Reindexing can take hours. It is bad when the reindexing fails due to a write conflict. It is much more acceptable when an intervening occational catalog update fails with a "VersionLockError". -- Dieter ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: [ZODB-Dev] Getting rid of ZODB versions (was Re: [ZWeb] Are Versions evil?)
Christian Robottom Reis wrote at 2004-7-16 10:27 -0300: > ... >> The database itself uses a short-lived lock to generate oids. > >Functionality which would be interesting if it were publically available >to solve the aforementioned problem. The functionality to get OIDs is there. It is the "new_oid" method of "Storages". You can abuse OIDs for "identifies". -- Dieter ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: [ZODB-Dev] Getting rid of ZODB versions (was Re: [ZWeb] Are Versions evil?)
On Fri, Jul 16, 2004 at 07:50:48PM +0200, Dieter Maurer wrote: > Christian Robottom Reis wrote at 2004-7-16 10:27 -0300: > > ... > >> The database itself uses a short-lived lock to generate oids. > > > >Functionality which would be interesting if it were publically available > >to solve the aforementioned problem. > > The functionality to get OIDs is there. > It is the "new_oid" method of "Storages". > You can abuse OIDs for "identifies". Yes, this has been discussed a few times on the list before -- I even coded up a prototype once. But, say, wouldn't it be nice if we had a method which we could use without needing to refer to this as "abuse" ? Take care, -- Christian Robottom Reis | http://async.com.br/~kiko/ | [+55 16] 3361 2331 ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: [ZODB-Dev] Getting rid of ZODB versions (was Re: [ZWeb] Are Versions evil?)
On Fri, Jul 16, 2004 at 08:39:52PM +0200, Dieter Maurer wrote:
> > In either case, if you have
> >resource contention, you are probably out of luck.
>
> Luck is not a binary concept ;-)
>
> Our current most essential use case for "Version"s is reindexing
> large catalogs. Reindexing can take hours. It is bad when
> the reindexing fails due to a write conflict. It is much
> more acceptable when an intervening occational catalog update
> fails with a "VersionLockError".
I am so happy Dieter happens to come up with a perfect Zope-compatible
use-case to justify this.
This is *so* true for any application that isn't a Web application. When
you have long-running transactions with lots of objects being modified,
it is certainly better to deny access to someone else up-front ("This
resource is unavailable. Go get some coffee.") than to let this person
start and then have them either conflict at the end or have *you*
conflict at the end. Yes, it's not something to be used as a rule, but
for certain operations it is just *so* essential.
Take care,
--
Christian Robottom Reis | http://async.com.br/~kiko/ | [+55 16] 3361 2331
___
Zope-Dev maillist - [EMAIL PROTECTED]
http://mail.zope.org/mailman/listinfo/zope-dev
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Making a ZSQL.DA fully multi-threaded?
Hi, On Fri, 2004-07-16 at 09:36, Brad Clements wrote: > On 16 Jul 2004 at 8:57, Chris Withers wrote: > > > This often means that many more database connections are opened than are > > actually necessary. And if you start timing out inactive database > > connectiosn on the database side, you're in for a world of pain and > > suffering. > > > > I branched ZOracleDA some time ago to move away from this model for that > > very reason... > > > > What's the actual problem you're experiencing? > > I have set the SAPDB timeout to 32400 seconds. However when running with more than 1 > thread I still get "mysterious segfaults" in the sapdbapi component. > > The SAP folks say their adapter is "multi-thread capable", but I've come to believe > that only > means that it's ok to open a connection in one thread and use it in another, but NOT > to have > 2 threads make requests on the same connection at the same time. Yes. It is defined in DBAPI and breaking it is not a good idea as it will cause problems like when one thread writes data, and another thread on the same connection wants to read it before the first can commit. > > Also, two threads can' t open a connection "at the same time" because their > connection table > management isn't "thread safe". > > What I need, I suppose, is a DB connection pool mechanism of some kind. I also have > Python extensions that need a connection as well. Getting the actual database > connection > from a DA stinks (ie, it's not really possible). I'd like to see an API extension to > ZopeDA's to > allow Pythonscripts, Products and external methods get an actual db connection. But > that I > suppose is a problem to solve later. You have to change ZopeDA to do that. But I doubt if it will be beneficial. We were experimenting with Pscopg and its Zope adapter. Psycopg has an option of opening many physical connections (one physical connection per cursor) to the DB using a non-serialize mode(yes that part breaks compatibility from DBAPI and suffers from the problem mentioned above) When we bench marked using AB, it was found that non serialized mode is very slow even though the threads were accessing the database in parallel because of the overhead of setting up new connections. To implement connection pooling, I think it is best to do it using an externel product like SQLRelay than at the driver level. thanks, ganesh Zeomega LLC Open minds' Open Solutions Plano, Texas, USA Bangalore, India phone: 972-731-6750 http://www.zeomega.com > > I think I will take a look at ZOracleDA to see what you did. > ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Where are all the good docs?
On Fri, Jul 16, 2004 at 02:53:20PM -0400, Bryan Simmons wrote: > I've recently persuaded my company and our clients that Zope is THE > way to go for Portal software. Now I find myself having to hack away > at sources more and more to meed their needs. With that in mind, how > can I find out something like what functions can be called from the > context object? > I've noticed context.absolute_url() and a few others but I find myself > sorely lacking the ability to look up member methods for Zope objects. > > Where do I go for info? Install DocFinder, it's great. For more info than that, use the source. -- Paul Winkler http://www.slinkp.com ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Where are all the good docs?
On Fri, Jul 16, 2004 at 05:44:46PM -0400, Paul Winkler wrote: > On Fri, Jul 16, 2004 at 02:53:20PM -0400, Bryan Simmons wrote: > > I've recently persuaded my company and our clients that Zope is THE > > way to go for Portal software. Now I find myself having to hack away > > at sources more and more to meed their needs. With that in mind, how > > can I find out something like what functions can be called from the > > context object? > > I've noticed context.absolute_url() and a few others but I find myself > > sorely lacking the ability to look up member methods for Zope objects. > > > > Where do I go for info? > > Install DocFinder, it's great. err, i meant to say DocFinderEverywhere. -- Paul Winkler http://www.slinkp.com ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Where are all the good docs?
That product sure does open up a wealth of information but it really does me no good with understanding what context is and what functions apply to it On Fri, 16 Jul 2004 17:45:28 -0400, Paul Winkler <[EMAIL PROTECTED]> wrote: > On Fri, Jul 16, 2004 at 05:44:46PM -0400, Paul Winkler wrote: > > On Fri, Jul 16, 2004 at 02:53:20PM -0400, Bryan Simmons wrote: > > > I've recently persuaded my company and our clients that Zope is THE > > > way to go for Portal software. Now I find myself having to hack away > > > at sources more and more to meed their needs. With that in mind, how > > > can I find out something like what functions can be called from the > > > context object? > > > I've noticed context.absolute_url() and a few others but I find myself > > > sorely lacking the ability to look up member methods for Zope objects. > > > > > > Where do I go for info? > > > > Install DocFinder, it's great. > > err, i meant to say DocFinderEverywhere. > > > > -- > > Paul Winkler > http://www.slinkp.com > ___ > Zope-Dev maillist - [EMAIL PROTECTED] > http://mail.zope.org/mailman/listinfo/zope-dev > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope ) > -- Regards, Bryan Simmons -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- What is this "sleep" of which you speak? -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: "RewriteMap"s inefficient (was: [Zope-dev] Apache Mod_rewrite question)
Hi Dieter, On Fri, 2004-07-16 at 13:10, Dieter Maurer wrote: > Ganesha Shanmuganathan wrote at 2004-7-15 15:57 -0500: > > ... RewriteMap files with the same name are identified ... > >That is strange! It looks like a bug in mod_rewrite then. I checked the > >source and found that it does compare by map name. Thanks for your > >feedback > > But the cache is not taken from a global variable but resolved > via a local resource. > > I am not sure what this local resource is (I am no Apache expert). > But, I expect that it is virtual host specific. >From what I understand, it is stored as static global (as APR table with APR mutex control for accessing by threads). I changed it to use key,map_file_name and it works for me. I have a writeup at http://www.izpug.org/Members/zeomega/mod_rewrite, for more information in case you are interested. thanks, ganesh Zeomega LLC Open minds' Open Solutions Plano, Texas, USA Bangalore, India phone: 972-731-6750 http://www.zeomega.com ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Where are all the good docs?
On Fri, Jul 16, 2004 at 07:37:01PM -0400, Bryan Simmons wrote: > That product sure does open up a wealth of information but it really > does me no good with understanding what context is and what functions > apply to it "context" is a generic name for the current, er, context. e.g. if i visit http://www.some-zope-site.org/foo/bar/baz, you could say i am calling baz in the context of bar. so what methods bar has depends on what kind of object bar is. That's where docfinder comes in... you visit bar in the ZMI and see what it says. you should also read the zope book... currently in progress version here: http://www.plope.com/Books/2_7Edition -- Paul Winkler http://www.slinkp.com ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
