- Zope - Zope lists

RE: [Zope] strange zope behavoir: zope not responding
by Jean-Francois.Doyon＠CCRS.NRCan.gc.ca 31 Oct '03

31 Oct '03

To case #2, I have experienced this. Zope just stops responding. It's not using any more resources than usual or anything, just stops responding. The issue with the processes, I think, is that possibly the master process or thread restarts itself, but the PID file doesn't get overwritten. So you now have a Zope running with a different PID than what is in the file. As such, running the "stop" script doesn't help. You have to issue a SIGKILL in order to shut it down (When I experience these symptoms, I've tried other signals without success). I am running 2.6.1 with Python 2.1.3. So far as I can tell server load is perfectly normal when this occurs, and it doesn't seem related to uptime.this week it happened twice in one day, but hadn't happened for a couple of weeks before that. In my case though I'm using Apache as a proxy, and Apache seems to lock up as well: it no longer spawns children for new requests. I've also seen it happen where apache's slots all fill up and then everything stops responding. In my case, I'm suspecting a nasty Coldfusion MX setup on the same box that I think has a race condition that takes up 100% CPU every once in a while. Had to track down though. But a race condition on a process would definitely show the types of symptoms describe here. Either way, I'd still like to hear comments/ides/solutions on this issue, just in case I'm following the wrong lead! J.F. -----Original Message----- From: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org]On Behalf Of Matthew Thorley Sent: Friday, October 31, 2003 9:34 AM To: zope(a)zope.org Subject: [Zope] strange zope behavoir: zope not responding I have observed some strange behavior from two of my zope servers (ver 2.6.2) that I am unable to find a cause for. FYI both servers are running on intel boxes under redhat 9.0. Case one; When I start the server in debug mode everything appears to be fine. When I went to the servers url on port 8080 I see the default indexpage. When I click the link for the management section I get a dialog to log in. After entering the correct user and pass my browser attempts to load the management section and hangs. Generall it builds the frames for the page and loads the data for the header frame and the text for the left (navigational frame) but only empty (image-not-loaded-yet-icon) boxes where the images should be and I can see nothing in the main page frame. If I restart the server the same thing happens. I also tried starting the server with these options -a ipaddress -Z1 -t 10 -f - -w - . After the page hangs it won't load(server?) the index page any more or any other page. My browser just sits there doing nothing until it times out with 'document contained not data' Case two After I start my server (different server then case 1) everything is fine and dandy for some time. I can create object, test objects and do normal zope stuff. At some point thought the server hangs, meaning any page I visit refuses to load and eventualy times out. At this point I can't even reload the page for objects that I am currently working on. The only thing that I remedies this is to restart zope. Another thing that I have observed is that generaly speaking when the server gets to this stage, if I press ctrl+c to kill the server (in the window where it shows that it is running) It doesn't actualy kill the server. I don't get the messages: 2003-10-31T00:50:45 INFO(0) Z2 Closing all open ZODB databases ------ 2003-10-31T00:50:45 INFO(0) Z2 Shutting down It just dies silently. But if I run ps aux | grep Zope it shows a Zope process running. Does any one have any idea why this is happening ? or have you ever experienced this yourself? thanks very much -matthew _______________________________________________ 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 )

1 0

Mixing keys
by Harm_Kirchhoff＠mail.digital.co.jp 31 Oct '03

31 Oct '03

I am new to ZOPE, so maybe this question is too simple: I would like to use a BTRee (OOBTree) to store information. For one type of sub-branch, I would like to use a continuous series of integers as keys: dbroot['SE_HMI']={ '2003' : { 'jrl' : { 0 : <a tuple of data>}} dbroot['SE_HMI']={ '2003' : { 'jrl' : { 1 : <a tuple of data>}} dbroot['SE_HMI']={ '2003' : { 'jrl' : { 2 : <a tuple of data>}} ... and so on ... all other branches besides 'jrl' will have string keys. I read in the ZODB,ZEO programming guide (www.zope.org/Wikis/ZODB/guide/) that you should only use objects of a SINGLE type as keys. I could write a generator, that would create strings, by counting from 0 to 255, however, that would destroy the sort order, because 'ABX' would sort before 'X', allthough it would represent a much larger number. Since the frequency of expected accesses will increase with the count (because the later records will be accessed more frequently), I expect that performance would be lower as the keys would end up in an unsorted manner. The same problem occurs with strings representing numbers, due to the sort order: cmp('123','2') , cmp(123,2) , "/" , cmp('ABX','X') (-1, 1, '/', -1) Does anybody have any experience with this problem ?

3 2

(111)Connection refused: proxy: HTTP: attempt to connect to
by Alvaro Jesus Hernandez Arteaga 31 Oct '03

31 Oct '03

Hi after to update of apache 1.3.28 to apache 2.0.48, the apache cannot show ZMI neither the zope portal. In the file log errors of apache are registered the follow lines [Thu Oct 30 12:06:00 2003] [error] (111)Connection refused: proxy: HTTP: attempt to connect to 10.0.0.1:8080 (10.0.0.1) failed [Thu Oct 30 12:06:00 2003] [error] (111)Connection refused: proxy: HTTP: attempt to connect to 10.0.0.1:8080 (10.0.0.1) failed [Thu Oct 30 12:06:06 2003] [error] (111)Connection refused: proxy: HTTP: attempt to connect to 10.0.0.1:8080 (10.0.0.1) failed [Thu Oct 30 12:06:06 2003] [error] (111)Connection refused: proxy: HTTP: attempt to connect to 10.0.0.1:8080 (10.0.0.1) failed My apache virtual host config file <VirtualHost 10.0.0.1> ServerName w3.ing.uc.edu.ve ProxyPass / http://10.0.0.1:8080/VirtualHostBase/http/w3.ing.uc.edu.ve:80/ ingenieria/VirtualHostRoot/ ProxyPassReverse / http://10.0.0.1:8080/VirtualHostBase/http/ w3.ing.uc.edu.ve:80/ingenieria/VirtualHostRoot/ ErrorLog /var/log/httpd/w3-ing-error.log TransferLog /var/log/httpd/w3-ing-access.log ProxyVia on RewriteEngine on RewriteCond %{REQUEST_METHOD} ^(TRACE|TRACK) RewriteRule .* -[F] </VirtualHost> -- Alvaro Jesus Hernandez Arteaga alhernan(a)uc.edu.ve Linux Counter: 122569

2 1

ZSyncer error: "illegal data at start of file"
by Kamal Gill 31 Oct '03

31 Oct '03

Any ideas what might be causing the following error in ZSyncer? We're running Zope 2.5.1 with ZSyncer 0.5.0-pre10 on Win2K. * Error * Syntax error at line 1: illegal data at start of file * Traceback (most recent call last): File "D:\PROGRA~1\MEDZOP~1\lib\python\DocumentTemplate\DT_Try.py", line 149, in render_try_except result = render_blocks(self.section, md) File "D:\PROGRA~1\MEDZOP~1\lib\python\DocumentTemplate\DT_Util.py", line 159, in eval return eval(code, d) File "", line 0, in ? File "D:\PROGRA~1\MEDZOP~1\lib\python\Products\ZSyncer\ZSyncer.py", line 205, in manage_compare File "D:\PROGRA~1\MEDZOP~1\lib\python\Products\ZSyncer\ZSyncer.py", line 467, in _manage_compare_path File "D:\PROGRA~1\MEDZOP~1\lib\python\Products\ZSyncer\ZSyncer.py", line 393, in _get_list File "D:\PROGRA~1\MEDZOP~1\lib\python\xmlrpclib.py", line 547, in __call__ return self.__send(self.__name, args) File "D:\PROGRA~1\MEDZOP~1\lib\python\xmlrpclib.py", line 630, in __request request File "D: \PROGRA~1\MEDZOP~1\lib\python\Products\ZSyncer\xmlrpclibBasicAuth.py", line 65, in request return self.parse_response(file) File "D:\PROGRA~1\MEDZOP~1\lib\python\xmlrpclib.py", line 596, in parse_response p.feed(response) File "d:\Program Files\MedZopeDev/bin/lib\xmllib.py", line 168, in feed self.goahead(0) File "d:\Program Files\MedZopeDev/bin/lib\xmllib.py", line 259, in goahead self.syntax_error('illegal data at start of file') File "d:\Program Files\MedZopeDev/bin/lib\xmllib.py", line 794, in syntax_error raise Error('Syntax error at line %d: %s' % (self.lineno, message)) Error: Syntax error at line 1: illegal data at start of file - Kamal

2 6

Re: [Zope] rss compliant blog
by Martijn Pieters 31 Oct '03

31 Oct '03

First of all, please let's keep the list in the loop; they may be of help too. On Thu, Oct 30, 2003 at 04:19:50PM -0500, Katie Legere wrote: > I put my site through, thanks for the link. Unfortunately I get this error: > > ----- > > The XML page cannot be displayed > Cannot view XML input using XML style sheet. Please correct the error and > then click the Refresh button, or try again later. > > > ---------------------------------------------------------------------------- > ---- > > A name contained an invalid character. Line 19, Position 88 > > <dtml-in expr="objectValues('DTML Document')" > sort="bobobase_modification_time" reverse> > > ---------- This sounds like the template itself, not the processed result is being fed to the validator. Are you sure you are not pointing to the template source? > So I'm assuming that the dtml is what's giving me trouble. I *thought* I was > following the Zope instructions for this though - can I not make a xml / rss > compliant feed that includes the dtml?? You can make valid RSS output using DTML, if that is what you mean. Do remember that the DTML tags are instructions to Zope DTML objects to do something specific there; DTML tags have no meaning to RSS processors, only the *result* of the tags after DTML processing. Personally, I use ZPT for XML output; it flows more naturally. -- Martijn Pieters | Software Engineer mailto:mj@zope.com | Zope Corporation http://www.zope.com/ | Creators of Zope http://www.zope.org/ ---------------------------------------------

3 5

RE: [Zope] FTP upload of ExtImage
by Dieter Maurer 31 Oct '03

31 Oct '03

Please stay on the list... Klimovich Alexander wrote at 2003-10-31 09:42 +0200: > ... > I have discovered that PUT_factory works, but I was unable > to create ExtFile/ExtImage object (and I suppose it isn't so > simple as I think). It should be simple. What went wrong? Remember: just saying "did'nt work" is forbidden. You *MUST* provide detailed problem reports; otherwise, we cannot help you. Usually, when you do something wrong, there are exceptions. A detailed problem report for an exception includes: "Error type", "error value" and the traceback (--> "/error_log"). When there is no exception, we need a precise description what happened, maybe with code. > Did you have such situation before? Sometimes, applications I write do not work as expected. I look at the error indications, analyse them and usually find a solution. > Can you give sample of code for creating ExtFile or ExtImage in > PUT_factory method? def PUT_factory(self,name,typ,body): from Products.ExtFile import ExtFile obj= ExtFile(name) obj.manage_file_upload(body,typ) return obj -- Dieter

1 0

image database /kv
by Kai Vermehr 31 Oct '03

31 Oct '03

Hi! We are trying to find out how to use Zope for an image database. Are there any case studies, howto's, products, etc. that anyone can recommend? How should images be organized? Where should they be placed? How best view, sort, organize, catalog the content. How define access rights? What layout concepts have been developed to display images of different sizes? I guess there are different approaches to solve these questions. Just wanted to browse through some of them before beginning with to build ours ... so any advice would very welcome!!! thanks! -- 'K:)

2 3

Newbie: Zope installation and phpBB compatibility
by Heimo Laukkanen 31 Oct '03

31 Oct '03

> Dieter, would you mind elaborating a bit more about how you move > templates and logic out of ZODB and into the file system. I am just > getting started with Zope and while I like a lot of things about how > Zope works, the "through the web" development style is almost enough > to make me decide Zope is not worth the pain. Well the current best practices are shown for example in content management framework, where via filesystem directory views filesystem directories are accessible inside Zope. And zenmaster Kapil Thangavelu has packaged Filesystem directory views to work without CMF. http://www.zope.org/Members/k_vertigo/Products/FileSystemSite Other options would include using APE that can map ZODB to filesystem. -huima

1 0

Newbie: Zope installation and phpBB compatibility
by Heimo Laukkanen 31 Oct '03

31 Oct '03

> On Thu, 30 Oct 2003 15:41:05 +0000 > Paulo Jorge de Oliveira Cantante de Matos <pocm(a)netvisao.pt> wrote: > >>> Question 1: Is zope compatible with apache2 and phpBB? > > Certainly no problem with apache2, not sure about phpBB. Well compatibility with phpBB is what you want to make out of it. The most obvious question naturally is how to use same userdatabase and profiles with Zope and phpbb. For that you need to modify some userfolder - for example exUserFolder to use the phpBB database. Needles to say, that requires knowledge of both how phpBB works and Python programming on Zope. > It is OK to do initial development on the laptop. But once you have a > system working, you will want to move your laptops Data.fs to its > permanent location on the server. After that, you have to manually > export and re-import folders. I would just work from the server from the > beginning. As a tip to the development, do most of the development work on filesystem - so that code can be put into CVS or other versioning system and story only data ( ie. content ) inside zodb. This way it is also easy to manage different versions of the site ( development, staging, production ). -huima

1 0

Chinese plug-in
by lyx＠email.netchina.com.cn 31 Oct '03

31 Oct '03

Dear: engineer I am Zope that Chinese user . I want to create the Chinese name Folder, but Zope nonsupport Chinese. Please tell me whether to have Chinese plug-in or not. Thanks a lot ! Lover Zope: Link lyx(a)email.netchina.com.cn

3 2