Re: [EMAIL PROTECTED]: Re: [Zope-Checkins] CVS: Zope/lib/python/nt_svcutils - service.py:1.1.2.2]
[Mark Hammond] [For some reason Tim's original still hasn't arrived!] You know, from my POV that statement is pretty mysterious, since you seem to be replying to my email here wink. [Tim Peters] ... I'm trying to build a new ZRS release. Trying to stop the ZRS service now suddenly and for no reason at all wink logs an error, because I believe its onStop() method is getting called twice now, but used to be called only once. That's no good for ZRS, because its onStop method makes a connection to a special shutdown port, and ZRS proper responds by shutting ZRS down. The socket goes away along with it, so trying to connect to the shutdown port a second time raises an exception. I'm not entirely sure why this didn't used to happen. I'm guessing that a stop request with the current code: 1. Triggers SvcStop, which calls onStop() and sets hWaitStop. 2. Setting hWaitStop in turn triggers the WaitForMultipleObjects in run(), and then that calls SvcStop again (which calls onStop() again). Anyway, is this bug or feature? If it's a feature, I can make the ZRS subclass onStop() methods safe to call multiple times. It doesn't _feel_ like a feature, though wink. From the sounds of things it is a bug wink. FYI, SvcStop is called by the (Python win32serviceutil) framework when an external request comes in to stop the service. I think that's my #1 above, and I think that part works fine here. The tracebacks I see have run() in the call stack, which is why I guess #2 is doing SvcStop it a second time. However, a service can stop also stop by its own accord. I don't think ZRS ever does that, and am not sure how I could write code to do it. Does a Zope service ever decide to stop by its own accord? The question, then, is under what cases should the onStop() calls be made? It sounds to me like you want it called only when that external request comes in. Maybe. In the end, by whatever means a service gets shut down (external, internal, whatever), I want to see the subclass onStop() method called exactly once. But that's mostly because that's what used to happen for the two ZRS-related services, not because it's a Holy Principle I'd fight to death to defend wink. Assuming that is the case, I believe both explicit calls to SvcStop() are bogus and can be removed completely. The report of SERVICE_STOP_PENDING will happen as soon as these functions return False. In both cases, it is not necessary to set hWaitStop as nothing is going to wait on it once these lines get hit. It seems we also don't want onStop() called at these times, so nothing the function does is necessary at those points. Also FYI, service.py is identical in both 2.7 and 2.8, so can be copied between them. I believe the diff you want is simply: RCS file: /cvs-repository/Zope/lib/python/nt_svcutils/Attic/service.py,v retrieving revision 1.1.2.3 diff -u -r1.1.2.3 service.py --- service.py 14 Apr 2005 01:47:48 - 1.1.2.3 +++ service.py 19 Apr 2005 04:48:18 - @@ -234,7 +234,6 @@ win32event.INFINITE) if rc == win32event.WAIT_OBJECT_0: # user sent a stop service request -self.SvcStop() keep_running = False elif rc == win32event.WAIT_OBJECT_0 + 1: # user did not send a service stop request, but @@ -261,7 +260,6 @@ # this was an abormal shutdown. if self.backoff_cumulative BACKOFF_MAX: self.error(restarting too frequently; quit) -self.SvcStop() return False self.warning(sleep %s to avoid rapid restarts % self.backoff_interval) That seems to work fine here. Seems to work fine for the ZRS-related services too, although I didn't get into the restarting too frequently branch. Thank you. If nobody objects in the next 10 minutes, then, I'll check this in (and port to Zope trunk (2.8) too). ___ Zope-Checkins maillist - Zope-Checkins@zope.org http://mail.zope.org/mailman/listinfo/zope-checkins
[Zope-Coders] Zope Bugs, Features, and Patches Collector: Open Issues
The following supporters have open issues assigned to them in this collector
(http://www.zope.org/Collectors/Zope).
Assigned and Open
Brian
- ZPT not being processed with text/vnd.wap.wml mime type,
[Accepted] http://www.zope.org/Collectors/Zope/968
Caseman
- ZCTextUndex should not hold a reference to a lexicon,
[Accepted] http://www.zope.org/Collectors/Zope/505
- locale based sorting in ZCatalog,
[Accepted] http://www.zope.org/Collectors/Zope/738
LRA
- FileUpload not iterable,
[Accepted] http://www.zope.org/Collectors/Zope/1199
Tiran
- Zope 2.7 doesnot serve pages to some accept-charset request headers,
[Accepted] http://www.zope.org/Collectors/Zope/1492
ajung
- manage_catalogIndexes: '# objects' is misleading,
[Accepted] http://www.zope.org/Collectors/Zope/1587
- Multilingual search gives a wrong results.,
[Accepted] http://www.zope.org/Collectors/Zope/1343
- WebDAV broken in 2.7.0-b3,
[Accepted] http://www.zope.org/Collectors/Zope/1145
- Mount-Points: documentation incomplete, behaviour surprising,
[Accepted] http://www.zope.org/Collectors/Zope/1487
- Need a way to include non-xml valid structure in ZPT attributes,
[Accepted] http://www.zope.org/Collectors/Zope/1281
chrism
- ZODBMountPoint should not monkey-patch ZODB,
[Accepted] http://www.zope.org/Collectors/Zope/1525
- poor error reporting on product initialization failure under windows,
[Accepted] http://www.zope.org/Collectors/Zope/1020
- Potential bug in Python cgi.FieldStorage can lead to problematic memory
growth,
[Accepted] http://www.zope.org/Collectors/Zope/1685
- TemporaryStorage should be made MVCC-capable on HEAD,
[Accepted] http://www.zope.org/Collectors/Zope/1526
- Lurking CPU eater in Transience,
[Accepted] http://www.zope.org/Collectors/Zope/1633
chrisw
- security.declareObjectProtected('View') appears to be buggy,
[Accepted] http://www.zope.org/Collectors/Zope/1264
- Zope 2.7.3b1 DAV server doesn't provide DAV header,
[Accepted] http://www.zope.org/Collectors/Zope/1518
- VHM and ZCatalog absolute paths,
[Accepted] http://www.zope.org/Collectors/Zope/608
- default page encoding hardcoded to latin1,
[Accepted] http://www.zope.org/Collectors/Zope/1490
- Debug Information Illegible,
[Accepted] http://www.zope.org/Collectors/Zope/1736
- Windows Linefeeds in ZPT,
[Accepted] http://www.zope.org/Collectors/Zope/1464
ctheune
- hasattr_unacquired,
[Accepted] http://www.zope.org/Collectors/Zope/742
- Shutdown ZEO Server under Windows,
[Accepted] http://www.zope.org/Collectors/Zope/1508
dreamcatcher
- PropertySheets xml_escape method with hardcoded encoding,
[Accepted] http://www.zope.org/Collectors/Zope/1561
efge
- default page encoding hardcoded to latin1,
[Accepted] http://www.zope.org/Collectors/Zope/1490
- ZCatalog getObject broken,
[Accepted] http://www.zope.org/Collectors/Zope/1713
evan
- Cant declare classes in Scripts with 2.7 and Python 2.3,
[Accepted] http://www.zope.org/Collectors/Zope/1074
fdrake
- ZCTextUndex should not hold a reference to a lexicon,
[Accepted] http://www.zope.org/Collectors/Zope/505
- [Weakness] analysis of Zope startup problems (log hidden),
[Accepted] http://www.zope.org/Collectors/Zope/1285
- FTP server does not implement MLSD or MLST,
[Accepted] http://www.zope.org/Collectors/Zope/1161
- Make possible to configure non-default logger hierarchies via zope.conf,
[Accepted] http://www.zope.org/Collectors/Zope/1555
htrd
- startup ConflictError,
[Deferred] http://www.zope.org/Collectors/Zope/300
jeremy
- Transaction Manager Brokenness,
[Accepted] http://www.zope.org/Collectors/Zope/701
- ZODB load state error,
[Accepted] http://www.zope.org/Collectors/Zope/1204
jim
- aq_acquire on u'aq_parent',
[Accepted] http://www.zope.org/Collectors/Zope/1738
mcdonc
- filestream_iterator handling is not implemented for FastCGI protocol.,
[Accepted] http://www.zope.org/Collectors/Zope/1647
mj
- expectMultipleRanges test should use email package,
[Accepted] http://www.zope.org/Collectors/Zope/579
mjablonski
- Error in zmi when an object is named 'URL' or 'URL1',
[Accepted] http://www.zope.org/Collectors/Zope/1217
slinkp
- AcceleratedHTTPCacheManager doesn't PURGE correctly for virtual hosts,
[Accepted] http://www.zope.org/Collectors/Zope/1447
tim_one
- Zope 2.8/ZODB 3.3: Update all cPickle.Pickler instances to use protocal
2,
[Accepted] http://www.zope.org/Collectors/Zope/1519
- ZCTextUndex should not hold a reference to a lexicon,
[Accepted] http://www.zope.org/Collectors/Zope/505
- ZODB load state
Re: [Zope-Coders] Wrong username and password == Anonymous User?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Wed, 20 Apr 2005 12:09 pm, Sidnei da Silva wrote: - If you want to access a anonymous page, you will *not* be sending auth credentials. Why do you say that? Cooke auth doesn't distinguish between anonymous pages and pages that require a user, so the cookie will be sent for every request. IIRC, this is also how Basic Auth works, once your browser knows you've got valid credentials for a site. Richard -BEGIN PGP SIGNATURE- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFCZcCyrGisBEHG6TARAvRoAJ4sWIc5jy9gmMmOR5dgfg8EVj4msACeIM80 fpLGmzjaZ7aJ8wG7uD0pH8g= =aSFF -END PGP SIGNATURE- ___ Zope-Coders mailing list Zope-Coders@zope.org http://mail.zope.org/mailman/listinfo/zope-coders
Re: [Zope-dev] debug-mode on under Windows 2000.
[EMAIL PROTECTED] wrote: I'm trying to get Zope to reload my Python modules so I don't have to restart Zope after code changes. Even with debug-mode on (according to the zope config file, it defaults to on) my modules are not being reloaded unless I do a restart. Is there a fix for this? Debug mode has nothing to do with this. Your products need to support refresh. Do they? cheers, Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope-Dev maillist - Zope-Dev@zope.org 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] Firefox manage_changePermissions issue?
I have experienced the following problem on two separate Zope/Plone sites. It is reasonably repeatable, but sometimes works without problem. I have a ZODB saved for testing purposes. I have tried fsrecovery.py on the database. It is not corrupted. Firefox fails on this database every time. The scenario: I change a permission setting using the ZMI of a Plone Site. I press the Save Changes button. Firefox sends a POST .../manage_changePermissions message to make the required change. A 200 response is returned. Firefox then immediately sends a GET .../manage_changePermissions without any interaction from the user. This totally destroys the permission settings for the object. Naturally, two transactions are logged, and undoing the second one fixes the error. However, it took over a day of digging to work this out, and the error is quite heart-stopping when it hits, because you are locked out of the object - in my case the entire Plone site. I can make this behaviour occur with Firefox repeatedly, but not quite always. If I continue to work on a site making changes and undoing them, sometimes the manage_changePermissions is only sent once. If I return to the saved ZODB and restart Zope, the duplicate sending happens in Firefox without fail. I have tried both Firefox-1.0.1 and Firefox-1.0.3. I have not managed to make it happen with Mozilla-1.7.2 or Konqueror-3.3.0, but I have been using Firefox most of the time because of the Live HTTP Headers extension. I have the logs, HTTP messages between browser and server, etc. I can't see anything in the Zope Access Control source which would cause a GET to be used after the POST. The GET is logged in the Firefox Live HTTP Headers, so it is not being generated further down the line by a proxy. I have a solution to apply next time this happens (use undo), but I would really like to track this one down. Any suggestions as to what to try next? I don't really want to study the Firefox source. I would rather learn about Zope and Plone :-) Thanks Tony Addyman -- Eur Ing A.M.Addyman, School of Computing, Science and Engineering University of Salford, Salford, M5 4WT ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Restart button in Control Panel
I don't think that debug mode has anything to do with it. Rather, if Correct. i have debug mode off, no Restart button. you're using runzope it's not running in daemon mode, and so cannot restart. Run it as a service with 'zopectl start' and you'll have a Restart button. Correct again. Thank you JCC. -- Milos Prudek ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] tal:attributes and extra newline
Andreas Jung wrote: --On Montag, 18. April 2005 17:55 Uhr +0200 Pascal Peregrina [EMAIL PROTECTED] wrote: Ok, it was TALInterpreter after all, but you need a long list of attributes (on a single line / single tal:attributes statement I mean)... It's because of the TAL.TALInterpreter.TALInterpreter.wrap value defaulting to 60 (see __init__) I managed, in my object that relies on PageTemplate, to set warp to 0 and I got no more extra newlines. So, just to know, why is the default value 60 ? It could be 42 or 120 or 800 :-) And it *really* should be 42. -- Bruno Desthuilliers Développeur [EMAIL PROTECTED] ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] How to break up an external method over multiply source files
I have an external method a.py (in $INSTANCE_HOME/Extensions) that becomes to big to be in one python file. I have put some functions in b.py (also in $INSTANCE_HOME/Extensions) and want to use them from a.py. However 'import b' in a.py does not work. How to get this to work? Lucas ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to break up an external method over multiply source files
--On Dienstag, 19. April 2005 11:25 Uhr +0200 Lucas Hofman [EMAIL PROTECTED] wrote: I have an external method a.py (in $INSTANCE_HOME/Extensions) that becomes to big to be in one python file. I have put some functions in b.py (also in $INSTANCE_HOME/Extensions) and want to use them from a.py. However 'import b' in a.py does not work. *Why* isn't it working? Errors? Tracebacks? -aj pgp1BnwMM4bLQ.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Re: How to break up an external method over multiply source files
Andreas Jung wrote:
--On Dienstag, 19. April 2005 11:25 Uhr +0200 Lucas Hofman
[EMAIL PROTECTED] wrote:
I have an external method a.py (in $INSTANCE_HOME/Extensions) that
becomes to big to be in one python file.
I have put some functions in b.py (also in $INSTANCE_HOME/Extensions) and
want to use them from a.py. However 'import b' in a.py does not work.
*Why* isn't it working? Errors? Tracebacks?
Sorry, I finished typing a little to early. I get an importerror:
Traceback (innermost last):
Module ZPublisher.Publish, line 101, in publish
Module ZPublisher.mapply, line 88, in mapply
Module ZPublisher.Publish, line 39, in call_object
Module Products.ExternalMethod.ExternalMethod, line 216, in __call__
Module Products.ExternalMethod.ExternalMethod, line 157, in
reloadIfChanged
Module Products.ExternalMethod.ExternalMethod, line 141, in getFunction
Module App.Extensions, line 148, in getObject
- __traceback_info__: ('/data/technology/Extensions/Import.py',
'Import')
Module /data/technology/Extensions/Import.py, line 6, in ?
ImportError: No module named Translate
(Translate.py is in the same folder as Import.py)
Lucas
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[Zope] Re: How to break up an external method over multiply source files
Lucas Hofman wrote:
Andreas Jung wrote:
--On Dienstag, 19. April 2005 11:25 Uhr +0200 Lucas Hofman
[EMAIL PROTECTED] wrote:
I have an external method a.py (in $INSTANCE_HOME/Extensions) that
becomes to big to be in one python file.
I have put some functions in b.py (also in $INSTANCE_HOME/Extensions)
and
want to use them from a.py. However 'import b' in a.py does not work.
*Why* isn't it working? Errors? Tracebacks?
Sorry, I finished typing a little to early. I get an importerror:
Traceback (innermost last):
Module ZPublisher.Publish, line 101, in publish
Module ZPublisher.mapply, line 88, in mapply
Module ZPublisher.Publish, line 39, in call_object
Module Products.ExternalMethod.ExternalMethod, line 216, in __call__
Module Products.ExternalMethod.ExternalMethod, line 157, in
reloadIfChanged
Module Products.ExternalMethod.ExternalMethod, line 141, in getFunction
Module App.Extensions, line 148, in getObject
- __traceback_info__: ('/data/technology/Extensions/Import.py',
'Import')
Module /data/technology/Extensions/Import.py, line 6, in ?
ImportError: No module named Translate
(Translate.py is in the same folder as Import.py)
In Import.py sys.path has the following value:
['/data/technology/Products/validation/validators/..',
'/data/technology/lib/python',
'/usr/local/zope272/lib/python/Zope/Startup',
'/usr/local/zope272/lib/python', '/usr/local/lib/python23.zip',
'/usr/local/lib/python2.3', '/usr/local/lib/python2.3/plat-linux2',
'/usr/local/lib/python2.3/lib-tk',
'/usr/local/lib/python2.3/lib-dynload',
'/usr/local/lib/python2.3/site-packages']
(/data/technology in $INSTANCE_HOME). I would have expected
/data/technology in sys.path.
Lucas
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Re: [Zope] Zope on cdrom
Nicolas Perrier - Zindep wrote: File /mnt/cdrom/python/lib/python2.3/asyncore.py, line 543, in __init__ flags = fcntl.fcntl(fd, fcntl.F_GETFL, 0) AttributeError: 'module' object has no attribute 'fcntl' Somebody can it help me? Is there any other handbook? Thanks. This looks more like you are trying ot use zopectl on Windows than anything to do with being on a CDROM. Is that the case? cheers, Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Problem with Zope Threads on Debain
David wrote: I have installed the zope debian (sarge) package. The default number of threads is 4 but only one thread is running. I installed this package in several machines and I have this problem in everyone. How are you deducing that only one thread is running? Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Using USB smart token with Apache-enabled Zope web site
[EMAIL PROTECTED] wrote: I would like to create a collaborative environment where people would work on Blender files (among other file types) with yet unknown parties and enforce 2-way authenticated access to the Zope web site with smart tokens. I want also manage the Zope web site from behind my NAT router. How do I go about this? Sounds like looking at PluggableAuthenticationService or SimpleUserFolder would be a good start ;-) cheers, Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Meta Type change
David wrote: I was wondering if I could just alter the meta_type for the object from within Zope, maybe through a python script and see if that makes the object accessible again. I can't find anything on how to change the meta_type for an existing object though. This is likely ot be the wrong way to go about it. You need to put the code for the class of object with the problems back in a state it was when things were last working. Changing meta_type, or worse still, trying to change the class of a persistent object will lead to much pain and suffering... Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] problems with *.zip and IE6 behind Apache
Sounds like this is an Apache problem and should be directed to an Apache mailing list... Chris robert wrote: Hi there, Internet Explorer can not open *.zip files served by Zope. I use apache 2.49 and mod_deflate on Linux (Suse 9.1/2) I use the following rule to supress compression: # Don't compress images, java scripts and style sheets #_robert_ pdf, gz hinzugeuegt SetEnvIfNoCase Request_URI \ \.(?:gif|jpe?g|png|js|css|pdf|gz|zip)$ no-gzip dont-vary This helps for pdf but not for zip files. The zip files load fine if I get ther directly from zope (by using a port number in the url) thanks for any hints Robert ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Firefox manage_changePermissions issue?
Tony Addyman wrote: I have experienced the following problem on two separate Zope/Plone sites. It is reasonably repeatable, but sometimes works without problem. I have a ZODB saved for testing purposes. I have tried fsrecovery.py on the database. It is not corrupted. Firefox fails on this database every time. I think I may have hosed a ZODB in just this way. Anyone got any ideas on how to stop Firefox doing this? ;-) cheers, Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Re: How to break up an external method over multiply source files
Lucas Hofman wrote:
Sorry, I finished typing a little to early. I get an importerror:
Traceback (innermost last):
Module ZPublisher.Publish, line 101, in publish
Module ZPublisher.mapply, line 88, in mapply
Module ZPublisher.Publish, line 39, in call_object
Module Products.ExternalMethod.ExternalMethod, line 216, in __call__
Module Products.ExternalMethod.ExternalMethod, line 157, in
reloadIfChanged
Module Products.ExternalMethod.ExternalMethod, line 141, in getFunction
Module App.Extensions, line 148, in getObject
- __traceback_info__: ('/data/technology/Extensions/Import.py',
'Import')
Module /data/technology/Extensions/Import.py, line 6, in ?
ImportError: No module named Translate
(Translate.py is in the same folder as Import.py)
The solution was to set the path variable in zope.conf to
$Instance/Extensions.
Thanks, Lucas
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[Zope] Re: How to break up an external method over multiply source files
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Andreas Jung wrote: | --On Dienstag, 19. April 2005 11:25 Uhr +0200 Lucas Hofman | [EMAIL PROTECTED] wrote: | | I have an external method a.py (in $INSTANCE_HOME/Extensions) that | becomes to big to be in one python file. | | I have put some functions in b.py (also in | $INSTANCE_HOME/Extensions) and want to use them from a.py. However | 'import b' in a.py does not work. | | *Why* isn't it working? Errors? Tracebacks? The file from which an ExternalMethod is instantiated is neither a script nor a module, which means that Python's import rules don't work for it. In response to the original question: I would put the 'b.py' file somewhere on the PYTHONPATH ($INSTANCE_HOME/lib/python would be a good choice); 'import b' will then work as expected. Tres. - -- === Tres Seaver[EMAIL PROTECTED] Zope Corporation Zope Dealers http://www.zope.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFCZQ2aGqWXf00rNCgRAtD/AKCC8E0O0mMEEF2eW0AGXf1aofWopgCfZIHr xvjVCTq8SS2IxRntZv77BbM= =0f3g -END PGP SIGNATURE- ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Firefox manage_changePermissions issue?
On Mon, Apr 18, 2005 at 10:53:00PM +0100, Tony Addyman wrote: I have experienced the following problem on two separate Zope/Plone sites. It is reasonably repeatable, but sometimes works without problem. I have a ZODB saved for testing purposes. I have tried fsrecovery.py on the database. It is not corrupted. Firefox fails on this database every time. (snip) I have not been able to provoke anything similar with Firefox 1.03 and CMFDefault 1.4.2 which is what I had handy when I read your message. You might try Shane's tcpwatch.py to further analyze the problem: Start it like e.g. (if zope is running on http://fooserver:8080): tcpwatch.py -h -L :fooserver:8080 then point your browser at http://localhost: and tcpwatch will log *everything* that goes between server and browser - all request data, all response headers and data. -- Paul Winkler http://www.slinkp.com ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] (no subject)
Hi All, How do I install multiple instances of Zope that are valid Windows Services in W2K3 w/ SP1 installed? i.e. start like an automatic service on startup? Only the initial instance that gets created during the installation process gets associated with a Hardware Profile, Profile1 here. (cmd: services.msc - Zope Instance at D:\Core-Instance - Log On tab - Profile1 is listed in the properties. If I try to run the Zope installer again to create another Windows service instance, it does not get associated with a Hardware Profile like the first. (e.g. services.msc - Zope Instance at D:\Next-Instance - brings up a complaint dialog: Configuration Manager: The specified Device ID is not a valid Device ID. Indeed, the properties box has NO entry for a Hardware Profile of any kind. And all other services created with the Create Zope Instance tool require manual start. Thank you. Michael Maslak ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Organisational vs. Functional hierarchies
I apologise if this is a newbie question, but I can't seem to find anything in the documentation about this. The way Zope seems to want to organise things is so that folders roughly equate to classes. That is, if I have B inside A, then B inherits its behaviour from A. All of B's siblings are the same sort of object. However, this means that I have to seperate all my various types of object by kind, regardless of whether they're related. Let's say I have a site that talks about flowers. I have two main kinds of object: images of flowers, which support methods for scaling etc, and descriptions of flowers, which support methods for rendering in various interesting ways. I have to arrange things like this: / Text HistoryOfTheDaisy MoreInformationAboutDaisies HowToGeneticallyEngineerRoses MyFavouriteRoseStories Images WildDaisy DomesticatedDaisy MutatedDaisyFromBeyondTimeAndSpace FakePictureOfABlackRose This works, but is a bit icky. I have my daisies mixed in with my roses. It would be far more convenient for organisational purposes if I arranged things like this: / Daisy Text HistoryOfTheDaisy MoreInformationAboutDaisies Images WildDaisy DomesticatedDaisy MutatedDaisyFromBeyondTimeAndSpace Rose Text HowToGeneticallyEngineerRoses MyFavouriteRoseStories Images MutatedDaisyFromBeyondTimeAndSpace FakePictureOfABlackRose But to make this work, I need to duplicate all the code in each 'Text' and 'Images' folder... Is it possible to tell Zope that methods for a particular kind of object should be found at a particular location, regardless of the containment hierarchy? That way I could have /lib/text and /lib/image that contain the reference code to make my text and images work; the Text and Images folders would then point at these. Or even better, I'd like to do without the Text and Images folders completely and just mix .pt and .jpg files in the Daisy and Rose folders. But I can't seem to find out whether I can do this. Is this in fact possible, or do I need to start tinkering with custom products? -- +- David Given --McQ-+ Every planet is weird. I spent six weeks on a | [EMAIL PROTECTED]| moon where the principal form of recreation was | ([EMAIL PROTECTED]) | juggling geese. Baby geese. Goslings. They were +- www.cowlark.com --+ juggled. --- Firefly, _Our Mrs. Reynolds_ ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Using USB smart token with Apache-enabled Zope web site
Chris Withers wrote: Sounds like looking at PluggableAuthenticationService or Easier to find by searching for Pluggable*Auth*Service (without the asterisks for emphasis). Tom ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Organisational vs. Functional hierarchies
On Tue, Apr 19, 2005 at 04:31:15PM +0100, David Given wrote: Is this in fact possible, or do I need to start tinkering with custom products? That's what I would do. -- Paul Winkler http://www.slinkp.com ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Organisational vs. Functional hierarchies
David Given wrote: I apologise if this is a newbie question, but I can't seem to find anything in the documentation about this. The way Zope seems to want to organise things is so that folders roughly equate to classes. Nope. That is, if I have B inside A, then B inherits its behaviour from A. B acquire part of its behavior from A. But acquisition is not only by containment, it's also by context. All of B's siblings are the same sort of object. Why do you have this strange idea ? However, this means that I have to seperate all my various types of object by kind, regardless of whether they're related. Not at all. The most obvious think to do is to put your objects where they belongs - that is, use the ZODB hierarchie like you'd use a plain filesystem for a static site. Let's say I have a site that talks about flowers. I have two main kinds of object: images of flowers, which support methods for scaling etc, and descriptions of flowers, which support methods for rendering in various interesting ways. I have to arrange things like this: / Text HistoryOfTheDaisy MoreInformationAboutDaisies HowToGeneticallyEngineerRoses MyFavouriteRoseStories Images WildDaisy DomesticatedDaisy MutatedDaisyFromBeyondTimeAndSpace FakePictureOfABlackRose This works, but is a bit icky. I have my daisies mixed in with my roses. It would be far more convenient for organisational purposes if I arranged things like this: / Daisy Text HistoryOfTheDaisy MoreInformationAboutDaisies Images WildDaisy DomesticatedDaisy MutatedDaisyFromBeyondTimeAndSpace Rose Text HowToGeneticallyEngineerRoses MyFavouriteRoseStories Images MutatedDaisyFromBeyondTimeAndSpace FakePictureOfABlackRose But to make this work, I need to duplicate all the code in each 'Text' and 'Images' folder... Nope. The most obvious thing to do is : put that code in your root folder. Now everyone will acquire it, and you'll be a happy webmaster. (unless of course there are name clashes somewhere !-) Is it possible to tell Zope that methods for a particular kind of object should be found at a particular location, regardless of the containment hierarchy? 0/ Put all your code in the root folder and use acquisition by containment. QD, but proven to work. 1/ add (in the root folder, or anywhere on top of your Flowers) a folder for each 'type of object', put the 'methods' in, and use acquisition by context: text_methods dothis dothat image_methods: dosomething dosomethingelse Then calls like: Rose/Text/MyFavouriteRoseStories/text_methods/do_this Should work. But I would not do it (at least for your exemple). 2/ Write a product for your object types. Here it could be a Flower object, extending Folder so you can put texts and images in, and having all the code needed for your texts and images. Is this in fact possible, or do I need to start tinkering with custom products? Anyway, you *should* write your own Products - and for this kind of things, it's pretty easy. -- Bruno Desthuilliers Développeur [EMAIL PROTECTED] ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Organisational vs. Functional hierarchies
On 4/19/05, David Given [EMAIL PROTECTED] wrote: I apologise if this is a newbie question, but I can't seem to find anything in the documentation about this. The way Zope seems to want to organise things is so that folders roughly equate to classes. That is, if I have B inside A, then B inherits its behaviour from A. All of B's siblings are the same sort of object. You can do it like that, yes. You only HAVE to, if you develop everything with pythin scripts. Disk-based products overcome this completely. But to make this work, I need to duplicate all the code in each 'Text' and 'Images' folder... Well, no. You can just put all of it in the top folder. ugh :) Or, as mentioned above, make a python product. Is this in fact possible, or do I need to start tinkering with custom products? Well, you *should* in any case. ;) -- Lennart Regebro, Nuxeo http://www.nuxeo.com/ CPS Content Management http://www.cps-project.org/ ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Convert Photos to ExtImage store
I have a few PhotoFolders containing Photos that are stored in the ZODB which I would like to convert to ExtImage storage. Since the number is large enough to make a manual process painful, I'd like to write a conversion script. Seems simple enough in principle, but I'm having trouble getting started. First, how do you use manage_addPhoto()? I assumed that photo_folder.manage_addPhoto() would work, but I get AttributeError: manage_addPhoto Ideally, the script would operate on a PhotoFolder object, say, making a new PhotoFolder, then creating all the new Photos based on the old ones. I can manually delete the old folder and rename the new one. Thanks, David Zope 2.7.0/Python 2.3.2 Photo 1.2.3 ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Convert Photos to ExtImage store
David Chandek-Stark wrote: I have a few PhotoFolders containing Photos that are stored in the ZODB which I would like to convert to ExtImage storage. Since the number is large enough to make a manual process painful, I'd like to write a conversion script. Seems simple enough in principle, but I'm having trouble getting started. First, how do you use manage_addPhoto()? I assumed that photo_folder.manage_addPhoto() would work, but I get AttributeError: manage_addPhoto Ideally, the script would operate on a PhotoFolder object, say, making a new PhotoFolder, then creating all the new Photos based on the old ones. I can manually delete the old folder and rename the new one. The factory method is not available in context: you must get it with manage_addProduct. See, for example, http://zopelabs.com/cookbook/1012279676 You may also be interested in http://vsbabu.org/webdev/zopedev/zodb2ext.html --jcc ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Organisational vs. Functional hierarchies
On Tue, 2005-04-19 at 18:43 +0200, bruno modulix wrote: [...] All of B's siblings are the same sort of object. Why do you have this strange idea ? From, uh, the documentation... because all of B's siblings will inherit the same methods from A. [...] Then calls like: Rose/Text/MyFavouriteRoseStories/text_methods/do_this Ah, so *that's* how acquisition by context works! (I couldn't find any documentation on this. All the documentation about acquisition by context just says 'this is really complicated and I'm not going to describe it here'.) 2/ Write a product for your object types. Here it could be a Flower object, extending Folder so you can put texts and images in, and having all the code needed for your texts and images. Unfortunately, this requires having the code dealing with text and images to be in the same place, which breaks encapsulation. It actually looks like acquisition by context is most likely my best bet so far... Incidentally, is it possible to override the default behaviour of an object? Is there any way of allowing Rose/MyFavouriteRoseStories do something *other* than just executing the named page template, other than making MyFavouriteRoseStories a folder and overriding index_html? [...] Anyway, you *should* write your own Products - and for this kind of things, it's pretty easy. Meh. Can you point me at any good tutorial documentations? -- +- David Given --McQ-+ The cup of Ireland's misfortunes has been | [EMAIL PROTECTED]| overflowing for centuries, and it is not full yet. | ([EMAIL PROTECTED]) | --- Sir Boyle Roche +- www.cowlark.com --+ ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Organisational vs. Functional hierarchies
On Tue, Apr 19, 2005 at 06:17:30PM +0100, David Given wrote: On Tue, 2005-04-19 at 18:43 +0200, bruno modulix wrote: [...] All of B's siblings are the same sort of object. Why do you have this strange idea ? From, uh, the documentation... because all of B's siblings will inherit the same methods from A. Sure, but that doesn't constrain the types you can add to a folder. If you want to constrain availability of a method to instances of a particular class, then it should be written as a method of that class. Acquisition is meta_type-agnostic. [...] Then calls like: Rose/Text/MyFavouriteRoseStories/text_methods/do_this Ah, so *that's* how acquisition by context works! (I couldn't find any documentation on this. All the documentation about acquisition by context just says 'this is really complicated and I'm not going to describe it here'.) It's in the Advanced Scripting chapter of the online Zope Book, and there are some warnings about ways it can make your system harder to maintain. Incidentally, is it possible to override the default behaviour of an object? Is there any way of allowing Rose/MyFavouriteRoseStories do something *other* than just executing the named page template, other than making MyFavouriteRoseStories a folder and overriding index_html? [...] Anyway, you *should* write your own Products - and for this kind of things, it's pretty easy. Meh. Can you point me at any good tutorial documentations? http://zopewiki.org/DiskBasedProduct - Paul Winkler http://www.slinkp.com ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Re: Convert Photos to ExtImage store
OK, my problem now is how to feed the image data from the ZODB photos to the factory method. If 'photo' is the original image object, I've tried photo.file (attribute error: file), photo.data (attribute error: read - line 658 of Photo.py), and other things. There must be a simple way to get the file object that manage_addPhoto() wants. Thanks, David ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Organisational vs. Functional hierarchies
On 4/19/05, David Given [EMAIL PROTECTED] wrote: Unfortunately, this requires having the code dealing with text and images to be in the same place, which breaks encapsulation. Zope is not a programming language. :-) Yes, Acquisition has similarieties to class inheritance, but it isn't, and trying to use is as if it was will just get strange. Acquisition can be handy for inheriting data (or rather, configuration), but not methods. -- Lennart Regebro, Nuxeo http://www.nuxeo.com/ CPS Content Management http://www.cps-project.org/ ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Writing products (was: Organisational vs. Functional hierarchies)
Meh. Can you point me at any good tutorial documentations? I just learned how to write products in about four hours by reading the following tutorials: Start with the minimal Product http://www.zope.org/Members/maxm/HowTo/minimal_01/ Then read about Boring product http://www.zope.org/Members/gtk/Boring and finish with JMBoring http://www.zope.org/Members/jmeile/JMBoring You then do not need to write your product from scratch. You can easily modify JMBoring. Thanks to Paul Winkler and Cliff Ford who pointed these excellent docs to me. -- Milos Prudek http://www.spoxdesign.com - your web usability testing ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Re: Organisational vs. Functional hierarchies
Acquisition can be handy for inheriting data (or rather, configuration), but not methods. Hmmm CMF skins (templates, Python Scripts, etc.) all work via acquisition; placeful scripting in general relies on it heavily. There is admittedly a lot of extra machinery in place to make sure that CMF objects select the right templates, based on their 'portal_type', but CMF / Plone / CPS wouldn't work at all without the ability to acquire software. Ah, and you create nice contained classes with CMF skins? Or, do all object have all methods? CMF skins is not an object oriented programming language either. -- Lennart Regebro, Nuxeo http://www.nuxeo.com/ CPS Content Management http://www.cps-project.org/ ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Zope2.7.4 with Python2.4?
Hi, I fired up zope ona new server yesterday. It's very very slow! I didn't think about it much at first (because I didn't think it possible), but, sh bin/runzope/usr/local/lib/python2.4/whrandom.py:38: DeprecationWarning: the whrandom module is deprecated; please use the random moduleDeprecationWarning)trimmed line 99, in ?import psycopgImportError: No module named psycopg/trimmed /usr/local/bin/python2.3Python 2.3.4 (#2, Jan 1 2005, 23:02:40)[GCC 2.95.4 20020320 [FreeBSD]] on freebsd4Type help, copyright, credits or license for more information. import psycopg Zope appears to be defaulting, and running with Python2.4 Forgive my newbieness, but might this be because I did something silly like: python mkzopeinstance.py rather than, /usr/local/bin/python2.3 mkzopeinstance.py when the instance was first created?___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Re: Zope2.7.4 with Python2.4?
Hi, Zope appears to be defaulting, and running with Python2.4 Forgive my newbieness, but might this be because I did something silly like: python mkzopeinstance.py rather than, /usr/local/bin/python2.3 mkzopeinstance.py when the instance was first created? nm, I fixed 'runzope', and 'zopectl' to reflect the appropriate python.___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Zope2.7.4 with Python2.4?
On Tue, Apr 19, 2005 at 05:45:08PM -0500, Luis N wrote: Forgive my newbieness, but might this be because I did something silly like: python mkzopeinstance.py rather than, /usr/local/bin/python2.3 mkzopeinstance.py when the instance was first created? Yep, that'd be my guess. -- Paul Winkler http://www.slinkp.com ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Re: Zope2.7.4 with Python2.4?
On Tue, Apr 19, 2005 at 06:45:04PM -0500, Luis N wrote: Hi, Zope appears to be defaulting, and running with Python2.4 Forgive my newbieness, but might this be because I did something silly like: python mkzopeinstance.py rather than, /usr/local/bin/python2.3 mkzopeinstance.py when the instance was first created? nm, I fixed 'runzope', and 'zopectl' to reflect the appropriate python. Note that python2.4 is not officially blessed by the core zope developers for zope 2.7. Everybody still runs python 2.3 except maybe a few who live on the bleeding edge. Just so you're properly warned :-) -- Paul Winkler http://www.slinkp.com ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Memory management problems
I have a serious memory problem. And would like to hear from anyone who has large image files being served up to a large number of simultaneous user base. I am running plone 2.0, zope 2.7.3, python 2.3.3, on windows 2003 server with 1.5 GB RAM. I have a 1MB image. I have created a little script to copy and paste this image. To do it 50 times takes 6 minutes and uses up 300 MB of RAM. If I then view the folder that contains all the images and start viewing the zpt that serves a single image it takes 40 seconds to a minute 20 and chews up approx 2-5MB. If I then get a few other machines to request the same image at the same time, it takes 20seconds for the first machine, 40 seconds for the next machine and 1 min for the next machine and another 20 MB of ram has been chewed up. Each time I go to serve a page my CPU usage jumps to 50% for the minute or so. After doing this over and over for a few minutes sees my machine has no RAM left. The only way to recover is to restart zope. My question after all of this is how in the world can anyone seriously use plone/zope in a real world scenario with potentially millions of users accessing a site viewing content if you have to restart your zope service every minute. I have spent the past two days looking at all sorts of cacheing ideas, session ideas etc. Is there some magic that I need to apply for this to work like any number of web image viewers. Or is it a case of throwing 100GB of Ram at the machine. Peter Millar ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
RE: [Zope] Memory management problems
My useless comment: In such a real world scenario, anyone would put squid between Zope and the millions of users. :) Pascal -Message d'origine- De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] la part de Peter Millar Envoyé : mercredi 20 avril 2005 02:28 À : [EMAIL PROTECTED]; Zope Objet : [Zope] Memory management problems I have a serious memory problem. And would like to hear from anyone who has large image files being served up to a large number of simultaneous user base. I am running plone 2.0, zope 2.7.3, python 2.3.3, on windows 2003 server with 1.5 GB RAM. I have a 1MB image. I have created a little script to copy and paste this image. To do it 50 times takes 6 minutes and uses up 300 MB of RAM. If I then view the folder that contains all the images and start viewing the zpt that serves a single image it takes 40 seconds to a minute 20 and chews up approx 2-5MB. If I then get a few other machines to request the same image at the same time, it takes 20seconds for the first machine, 40 seconds for the next machine and 1 min for the next machine and another 20 MB of ram has been chewed up. Each time I go to serve a page my CPU usage jumps to 50% for the minute or so. After doing this over and over for a few minutes sees my machine has no RAM left. The only way to recover is to restart zope. My question after all of this is how in the world can anyone seriously use plone/zope in a real world scenario with potentially millions of users accessing a site viewing content if you have to restart your zope service every minute. I have spent the past two days looking at all sorts of cacheing ideas, session ideas etc. Is there some magic that I need to apply for this to work like any number of web image viewers. Or is it a case of throwing 100GB of Ram at the machine. Peter Millar ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ** ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Memory management problems
Many things could be going on here. I don't know of any outstanding memory leaks in Zope itself. There may be one in Plone or another 3rd-party product you're using. Or you may have created one within your own code. Tracking down memory leaks is hard and it's not clear to even tell you where to start. Best advice is to use binary exclusion in the template that serves up the page (comment out half of it, serve it up, see if that leaks, if so, divide in half again, and so on). Once you've tracked it down, remediation is another thing altogether, however. On Tue, 2005-04-19 at 20:27, Peter Millar wrote: I have a serious memory problem. And would like to hear from anyone who has large image files being served up to a large number of simultaneous user base. I am running plone 2.0, zope 2.7.3, python 2.3.3, on windows 2003 server with 1.5 GB RAM. I have a 1MB image. I have created a little script to copy and paste this image. To do it 50 times takes 6 minutes and uses up 300 MB of RAM. If I then view the folder that contains all the images and start viewing the zpt that serves a single image it takes 40 seconds to a minute 20 and chews up approx 2-5MB. If I then get a few other machines to request the same image at the same time, it takes 20seconds for the first machine, 40 seconds for the next machine and 1 min for the next machine and another 20 MB of ram has been chewed up. Each time I go to serve a page my CPU usage jumps to 50% for the minute or so. After doing this over and over for a few minutes sees my machine has no RAM left. The only way to recover is to restart zope. My question after all of this is how in the world can anyone seriously use plone/zope in a real world scenario with potentially millions of users accessing a site viewing content if you have to restart your zope service every minute. I have spent the past two days looking at all sorts of cacheing ideas, session ideas etc. Is there some magic that I need to apply for this to work like any number of web image viewers. Or is it a case of throwing 100GB of Ram at the machine. Peter Millar ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] ZPsycopgDA dropping connections?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Has anyone else seen ZPsycopgDA just lose its connection? I've got two ZEO clients set up to use it, and every now and then one of them (the primary) just up and loses its connection. There doesn't appear to be any message in the log file *except* for the message saying that the connection's not active: 2005-04-20T14:35:46 INFO(0) ZEC:/var/cache/cgzope/zope-8000/cmain-main-1.zec flipping cache files. new current = 1 - -- 2005-04-20T14:53:25 INFO(0) ZEC:/var/cache/cgzope/zope-8000/cmain-main-0.zec flipping cache files. new current = 0 - -- 2005-04-20T14:58:11 ERROR(200) SiteError http://laurastein.cgpublisher.com/CGPublisher Traceback (most recent call last): File /home/cgzope/prod/Zope/lib/python/ZPublisher/Publish.py, line 92, in publish File /home/cgzope/prod/Zope/lib/python/ZPublisher/BaseRequest.py, line 259, in traverse File /home/cgzope/prod/Zope/lib/python/ZPublisher/BeforeTraverse.py, line 104, in __call__ File /home/cgzope/prod/Zope/lib/python/ZPublisher/BeforeTraverse.py, line 144, in __call__ File /home/cgzope/prod/Products/CookieCrumbler/CookieCrumbler.py, line 217, in __call__ attempt = self.modifyRequest(req, resp) File /home/cgzope/prod/Products/CGPublisher/SessionCookieCrumbler.py, line 55, in modifyRequest creds = req.SESSION.get(key,None) File /home/cgzope/prod/Zope/lib/python/ZPublisher/HTTPRequest.py, line 1218, in __getattr__ File /home/cgzope/prod/Zope/lib/python/ZPublisher/HTTPRequest.py, line 1178, in get File /home/cgzope/prod/Products/ZSQLSessionDataManager/ZSQLSessionDataManager .py, line 100, in getSessionData return self._getSessionDataObject(key) File /home/cgzope/prod/Products/ZSQLSessionDataManager/ZSQLSessionDataManager .py, line 233, in _getSessionDataObject c = self._getSessionDataConnection() File /home/cgzope/prod/Products/ZSQLSessionDataManager/ZSQLSessionDataManager .py, line 250, in _getSessionDataConnection return self.restrictedTraverse(self.obpath)() File /home/cgzope/prod/Zope/lib/python/Shared/DC/ZRDB/Connection.py, line 173, in __call__ BadRequest: The database connection is not connected - -- (apologies for the wrapping, of course) Any ideas? Richard -BEGIN PGP SIGNATURE- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFCZedirGisBEHG6TARAo6WAJ98cBlOZqoZ62Amg0zreDkTPFiyAQCeJGla gmhpp4lXn2wjFb6PnPkF3cI= =8g/U -END PGP SIGNATURE- ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] ZPsycopgDA dropping connections?
Hi, Am Mittwoch, den 20.04.2005, 15:23 +1000 schrieb Richard Jones: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Has anyone else seen ZPsycopgDA just lose its connection? I've got two ZEO clients set up to use it, and every now and then one of them (the primary) just up and loses its connection. There doesn't appear to be any message in the log file *except* for the message saying that the connection's not active: I remember there was a thread in the mailinglist about the new version of ZPsycopgDA not automatically reconnecting after loosing connection. So instead of the previous versions you now see the fact the connections are dropped. The reason for dropping the connection in the first place often lay in the inproper configuration of a intermediate firewall (see tcp session timeout there) Regards Tino ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope-DB] Returning values from Oracle function/procedure withZSQLMethod
Hi Cynthia, Cynthia Kiser wrote: When you do our own connection management, are you able to avoid DCOracle2 leaking connections? In our Zope 2.6.1/DCOracle2-1.3b server, we accumulate sessions where Oracle is waiting for a response from Zope, but Zope apparently thinks it closed that connection and opened a new one. If you google for my name, Oracle and Zope you'll find lots of information on the problem ;-) It's basically ZOracleDA's funny idea of connection pooling that causes the problem. Unless your ZSQL methods are hammered heavilly, you'll see plenty of unused oracle sessions. These aren't being leaked as you suggest, just not used very often. This results in Oracle Not Connected errors if your DBA sets a timeout on unused Oracle sessions... Manually closing and reopening the connection does not clean up the forgotten sessions, so I periodically (~monthly) restart the Zope server to clean up. Control Panel - Database - Main - Flush Cache will have the same effect... me with the impression that its connection closing function did not work. It doesn't ;-) cheers, Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope-DB mailing list Zope-DB@zope.org http://mail.zope.org/mailman/listinfo/zope-db
