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Re: [Zope] Problem with Zope Threads on Debain
by David 20 Apr '05

20 Apr '05

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 I do : ps -aux . There is one zope process (user : zope) running in every moment : zope 19004 0.3 11.0 171460 114380 ? S 09:58 0:16 /usr/bin/python2.3 /usr/lib/zope2.7/lib/python/Zope/Startup/run.py -C /var/lib/zope2.7/instance/ ... However, there are a lot of apache process (6) running. Do you know another way to obtain the number of zope threads running?

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Pass index in a TAL path expr
by Vangelis Mihalopoulos 20 Apr '05

20 Apr '05

Hello, if "data" is a tuple (or list), how can directly access it's contents using path expressions, like in: -- script "s": return context.t(data=("one", "two", "three")) -- template "t" <html><body> <span tal:replace="options/data/0"></span> </body></html> The above example give out a TypeError for the index... "options/data/0" is not correct. What should i set the path to?

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[ANN] Zope 2.7.6 beta 2 released
by Andreas Jung 20 Apr '05

20 Apr '05

Dear Zope Community, on behalf of Zope Corporation and all Zope 2 developers and contributors I am pleased to announce the release of Zope 2.7.6 beta 2 Zope 2.7.6 beta 2 can be downloaded from http://www.zope.org/Products/Zope/2.7.6b1 The release notes can be found at http://www.zope.org/Products/Zope/2.7.6b2/CHANGES.txt This release also includes the security hotfix from 2005-04-05. It is highly recommended to upgrade existing installations or to install at least the hotfix and wait until 2.7.6 final will be out (in about two weeks). This release also contains several fixes for running Zope on Windows. All Zope windows users are invited to test the improvements *now* and not to wait until the final release. TEST NOW and help that related bugs are fixed *FOR THE FINAL* release and *AFTER THE FINAL* release. For information on using Python 2.4 with Zope 2.8: see doc/INSTALL.txt Andreas Jung Zope 2 Release Manager

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ZPsycopgDA dropping connections?
by Richard Jones 20 Apr '05

20 Apr '05

-----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-----

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Multipart/alternative Emails
by Thomas Adams 20 Apr '05

20 Apr '05

Hello, I'm trying to perform a multipart/alternative email message with combination of sendmail-, mime- and boundary-tag. Here is the code: <dtml-sendmail mailhost="MailHost"> To: thomas.adams(a)info.de From: kontakt(a)info.de Subject: password <dtml-mime type="multipart/alternative" encode="quoted-printable"> <dtml-boundary type="text/plain" encode="quoted-printable"> ....plain text... <dtml-boundary type="text/html" encode="quoted-printable"> <html> ...... here the HTML-Code .... </html> </dtml-mime> </dtml-sendmail> But the resulting email is still of type multipart/mixed, what is wrong here? (I'm using Zope 2.7.3 with Python 2.3.4 on Win XP SP2) Thanks in advance Regards Thomas

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ZCatalog and custom Product
by Milos Prudek 20 Apr '05

20 Apr '05

Hi, I need to convert a ZClass cataloged in multiple ZCatalogs into a Product. I know how to create a Product. But I have trouble understanding how to create a proper ZCatalog and manage it in a Product. When I change my ZClass instance, it reindexes itself in multiple ZCatalogs. I have the following DTML method "edit" in my ZClass (stored in ZODB) that takes care of this: <dtml-call "manage_editCataloger('Catalog_A')"> <dtml-call reindex_object> <dtml-call "manage_editCataloger('Catalog_B')"> <dtml-call reindex_object> How should this be programmed in Products? - Should I first create a ZCatalog instance in ZODB, and then bind this instance to my Product? That would make my Product not self-contained. - or should the Product rather create ZCatalog instance during its initialization? That would mean that upon Zope restart, ZCatalog instance would be removed and re-created and all Product instances would have to be recataloged. In my new Product (that is to replace my ZClass), I put this line: from Products.ZCatalog.ZCatalog import ZCatalog and I added ZCatalog to the list of subclassed classes: class ArtBase(ZCatalog, ObjectManager, SimpleItem, PropertyManager, JMZPTMacros): but I have no idea what to do next. In this mailing list's archive, Chris Withers wrote that ZCatalog should be an attribute of a product's instance so that I can open the ZCatalog management interface by calling "my_prod_instance/catalog_name/manage". I understand that, but I have no idea how to achieve it. Should I add a line to my class __init__ ? Something like: def __init__(self,id,title=''): """Contructor method to initialize the properties of our class""" #Create and initilize the class attributes self.id=id self.title=title self.catalog=manage_addZCatalog(id="catalog", title="title") but the above looks fishy because I would have an isolated catalog for each new instance of my class... To support manage_editCataloger and reindex_object, do I need to import both ZCatalog from Products.ZCatalog and CatalogAware from Products.ZCatalog.CatalogAwareness ? -- Milos Prudek

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Memory management problems
by Peter Millar 20 Apr '05

20 Apr '05

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

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RE: [Zope] Memory management problems
by Pascal Peregrina 20 Apr '05

20 Apr '05

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 : zope-bounces(a)zope.org [mailto:zope-bounces@zope.org]De la part de Peter Millar Envoyé : mercredi 20 avril 2005 02:28 À : plone-users(a)lists.sourceforge.net; 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(a)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 **********************************************************************

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Re: Zope2.7.4 with Python2.4?
by Luis N 20 Apr '05

20 Apr '05

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.

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Convert Photos to ExtImage store
by David Chandek-Stark 19 Apr '05

19 Apr '05

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

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