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Re: [Zope] Zope Eating Memory for Breakfast
by Hung Jung Lu 13 Apr '00

13 Apr '00

Hi Bill, Here is the report from my camp. I use "top", which is not the same "top" that you use. In fact, our "top" here DOES calculate memory usage and the first few lines are IDENTICAL to the results given by "free". Could you post a feedback on your interpretation of this information? Hung Jung ============================================================== result from "free": total used free shared buffers cached Mem: 257624 254304 3320 47632 161828 10868 -/+ buffers/cache: 81608 176016 Swap: 265032 1288 263744 ============================================================== result from "top" 9:29am up 7 days, 20:01, 1 user, load average: 0.00, 0.00, 0.00 59 processes: 58 sleeping, 1 running, 0 zombie, 0 stopped CPU states: 0.0% user, 0.7% system, 0.0% nice, 99.2% idle Mem: 257624K av, 254444K used, 3180K free, 48116K shrd, 161924K buff Swap: 265032K av, 1288K used, 263744K free 10804K cached PID USER PRI NI SIZE RSS SHARE STAT LIB %CPU %MEM TIME COMMAND 25678 nobody 0 0 32320 31M 2224 S 0 0.0 12.5 0:32 python 25679 nobody 0 0 32320 31M 2224 S 0 0.0 12.5 0:00 python 25680 nobody 0 0 32320 31M 2224 S 0 0.0 12.5 10:09 python 25681 nobody 0 0 32320 31M 2224 S 0 0.0 12.5 11:43 python ..... ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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Re: [Zope] Zope Eating Memory for Breakfast
by Hung Jung Lu 13 Apr '00

13 Apr '00

By the way, Bill Anderson, please use a valid e-mail address when posting to zope(a)zope.org. It's kind of impolite to use an invalid e-mail address: bill(a)libc.org Hung Jung ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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Image Submit Buttons
by Weston Bustraan 13 Apr '00

13 Apr '00

I have a form where, instead of "Add" and "Delete" buttons, I want to use images of a plus and a minus sign. If I use images, Zope seems to ignore the names and values of buttons. For example: I have something that looks like this: Form Html: <form action="edit" method="post"> <input type="submit" name="mode" value="Add"> <input type="submit" name="mode" value="Delet"> </form> DTML Method "edit": <dtml-if "mode == 'Add'"> .... <dtml-elseif "mode == 'Delete'"> .... </dtml-if> Works great, but if I change the form to: <form action="edit" method="post"> <input type="image" src="..." name="mode" value="Add"> <input type="image" src="..." name="mode" value="Delet"> </form> Zope responds: "Zope Error Zope has encountered an error while publishing this resource. Error Type: NameError Error Value: mode" Anybody have any suggestions? ,------------------------------------------------------------, | Weston J. Bustraan | E-Mail: weston(a)itdonline.net | | Development Manager | Phone: (616)249-3630 | | Infinity Tel-Data Inc. | Fax: (616)249-3067 | | 4723 S. Division Ave. | WWW: www.itdonline.net | | Wyoming, MI 49548 | PGP: finger weston(a)itdonline.net | `------------------------------------------------------------` A)bort, R)etry, I)nfluence with large hammer.

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RE: [Zope] Slow Startup, error message: PROBLEM(100) ZServer Com puting defa ult hostname ult hostname
by Mike Fletcher 13 Apr '00

13 Apr '00

Hmm, that does the trick (thought I'd already tried specifying hostname). Brings startup down to 15 seconds. Apparently my dns server is incorrectly configured (specifying it didn't help, I had to specify the hostname explicitly). :) Thanks. Mike -----Original Message----- From: Petru Paler [mailto:ppetru@coltronix.com] Sent: Thursday, April 13, 2000 3:33 PM To: Mike Fletcher Cc: zope Subject: Re: [Zope] Slow Startup, error message: PROBLEM(100) ZServer Computing defa ult hostname ult hostname ZServer tries to do a reverse lookup and you have a problem with your nameserver config. This should go away if you specify the hostname and/or fix the nameserver settings (or make sure it's reachable). ...

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Slow Startup, error message: PROBLEM(100) ZServer Computing defa ult hostname ult hostname
by Mike Fletcher 13 Apr '00

13 Apr '00

PROBLEM(100) ZServer Computing default hostname Hi all, Zope has always taken a long time (20-30 seconds) to start on my PIII 500 NT 4.0sp5 machine, and I was suddenly struck by the thought "hey, maybe this error message that keeps getting printed when I start Zope means something". No luck finding error reports/documentation on it, and poking through the medusa source didn't help me find where the time is going (the actual computation of the default hostname seems fairly fast). So, any thoughts? It's not a huge problem, but what with restarting the server every time I edit a file taking at least 1/2 minute, development gets somewhat tedious ;oP . Thoughts welcome, Mike

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Acquisition problem
by jiva＠devware.com 13 Apr '00

13 Apr '00

I am confused about acquisition. What I want to do is I have a home page, and I have a standard_html_header I am including in it. standard_html_header changes the background color to say, black. These are both in a folder. I want to create a subfolder of this folder and only replace standard_html_header to change the background color to white. Kinda like theming, I want to keep all the content and keep the root black site, but then have a second identical copy that is all white. What I find when I try to do this, is I copy standard_html_header into my subfolder, and I make my change there. I have no index_html in my subfolder. I am assuming it will work like inheritance in OOP and inherit anything that's not there, and have it then refer to the current folder for it's standard html header. What actually happens though, is when I reference this folder, it goes to the parent, gets the index_html AND the standard_html_header from the parent and uses it to override my standard_html_header in my child folder! What am I doing wrong? -- The sooner you make your first 5000 mistakes, the sooner you will be able to correct them. -- Nicolaides

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ZClases or Zope Products?
by Bob Erb 13 Apr '00

13 Apr '00

My application design lists more than 100 classes. Is it better to construct the classes as ZClasses or as Zope Products wrapping Python classes? What should I consider when choosing between the two approaches? -- Bob Erb InstantAppointment.Com (603)930-8836

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URL???
by Pierre Rougier 13 Apr '00

13 Apr '00

I have a strange problem: when I write : <A HREF="www.altavista.fr">altavista</A> in my zope index_html method, the link is printed, but try to reference to : http://localhost:8080/www.altavista.com so, of course, the URL is not valid! isn't it possible to force zope to create a link to http://www.altavista.com instead of http://localhost:8080/www.altavista.com??? I suppose it is easy to do, but I don't find how! Thanks!!

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RE: [Zope] www.zope.org down
by Marcus Collins 13 Apr '00

13 Apr '00

> -----Original Message----- > From: Chris Withers [mailto:chrisw@nipltd.com] > Sent: 13 April 2000 14:33 > To: Zope Mailing List > Subject: [Zope] www.zope.org down > > Yes, zope.org still down (14.15 CET) > > Anyone from DC know why this is or when it'll be back? It is www.zope.org seems to have been down since before 10:00 GMT. I'd also like to know *why*, but is it possible it had anything to do with the Ask Slashdot of yesterday? Just wondering... FWIW, only www.zope.org is down (and it's the whole machine, not just Zope -- no reply from ping). lists.zope.org (as evident ;-) and classic.zope.org are still there. IIRC, www.zope.org is served by a single machine, and its not really a brute of a machine, either. > kindof frustrating when most of your documentation suddenly > vanishes.... The mail archives at eGroups are still there, and there is the mailing list and the source code... ;-) -- Marcus

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Re: [Zope] Zope Eating Memory for Breakfast
by Hung Jung Lu 13 Apr '00

13 Apr '00

>From: Monty Taylor <mtaylor(a)goldridge.net> Thanks for the feedback. It's very helpful. > > (4) ZODB: I don't have anything that dynamically changes Zope's > > ZODB, that is, I don't upload files into ZODB (Do you?), I >... > My site changes a bit more than that, but it's still fairly >static. My web-content manager may post a new org-chart or internal news >story, but we don't even have that many people connecting to read yet. > > > (5) Size of ZODB: my Data.fs is about 9 MB. > > That would be 525Meg. My god, that's large. But I think that's >mainly pictures. Aha! There is the first clue. The memory increase has to do with Zope ZODB operations. Why does it have to do with ZODB operations? (1) There are Zope sites out there running for a long time and people aren't complaining about memory leak problems. These include some heavily-visited sites. (2) Everytime you restart Zope the memory usage starts out OK. (3) The size of the problem is proportional to the size of Data.fs (4) I played around a bit with my site, and when I am viewing and accessing my site as an external user, the memory usage did not go up. (5) But when I use Zope management interface to do some operations, like clicking on the Find tab (and then the Find button in that page), the memory usage jumped. I managed to raise the memory usage by 5 MB just by clicking the Find tab/button all over places and search for files containing a diverse text pattern. Could you try with "Finding" some items in your website by using Zope's "Find" feature, and let us know whether it also raises the memory usage? So at the moment the memory leak problem does not seem to be coming from usage of products (like database adapter), but from some of the management function calls in Zope. ----------------------------------------------------------- In your case, I would recommend you using external storage for images/files. And use a product like LocalFS (see http://www.zope.org/Members/sabaini/externalfiles-howto ) to handle large files. You can also write your own external methods to save/delete/update/upload/download the external files. That should bring your memory usage drastically down to megabytes instead of gigabytes. So, in a sense, your problem can be solved (since you have a few GB of RAM memory to play around... ha ha... I am not that lucky.) It's a harder question how we are going to pinpoint the exact source of the memory leak. regards, Hung Jung ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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