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Problem found with zope

Seb
Hello,

I have a (french) web site under PLONE2. Every thing is ok (concerning Zope
/PLONE2) , but since few days I get a "very strange problem". I'm using Zope
2.7.0 with Apache under FreeBSD.

My problem : When you refresh several times my web site the pictures are
"mixted". I mean on some pictures positions, it is some other pictures that
are used instead the good ones. It happens at random.

I'm quite sure it is a python problem but I'lm not an expert.

If you want to see my "problem", my website is www.biendivorcer.com (it is
only a french site).

Thanks for your help.

Sébastien
Jul 18 '05 #1
3 1103
Seb schrieb:
My problem : When you refresh several times my web site the pictures are
"mixted". I mean on some pictures positions, it is some other pictures that
are used instead the good ones. It happens at random.

I'm quite sure it is a python problem but I'lm not an expert.


I've browsed your page with Mozila 1.7. There is a linkTransparent.gif
in the navigation area which is a transparent background image and
gets overlayed by other images when I switch to another tab. If I
hit Shift+Reload, the page is displayed correctly.

I have no idea how this can be tracked to python code. To me it appears
as a cache issue.

Mit freundlichen Gruessen,

Peter Maas

--
-------------------------------------------------------------------
Peter Maas, M+R Infosysteme, D-52070 Aachen, Tel +49-241-93878-0
E-mail 'cGV0ZXIubWFhc0BtcGx1c3IuZGU=\n'.decode('base64')
-------------------------------------------------------------------
Jul 18 '05 #2
Seb wrote:
Hello,

I have a (french) web site under PLONE2. Every thing is ok (concerning Zope
/PLONE2) , but since few days I get a "very strange problem". I'm using Zope
2.7.0 with Apache under FreeBSD.

My problem : When you refresh several times my web site the pictures are
"mixted". I mean on some pictures positions, it is some other pictures that
are used instead the good ones. It happens at random.
What I see is that the page changes on fast refreshes - with parts
beeing left out - font sizes changing dramtically, etc. This only in
Internet Explorer, though. In Firefox 0.9 it appears to be steady as a
rock. Since the xhtml source is identical everytime - no matter what the
representation is, my tentative guess would be that this is an Internet
Explorer problem. Especially since the problem can be reproduced when
you save the xhtml source to disk and load that into your browser.
--
Vincent Wehren

I'm quite sure it is a python problem but I'lm not an expert.

If you want to see my "problem", my website is www.biendivorcer.com (it is
only a french site).

Thanks for your help.

Sébastien

Jul 18 '05 #3

[Seb]
My problem : When you refresh several times my web site the pictures are
"mixted". I mean on some pictures positions, it is some other pictures that
are used instead the good ones. It happens at random.


This is a wild stab in the dark, but I have seen this before (not with Zope,
but with a different web server). The reason was that sometimes the server
would send an HTTP response twice, so over an HTTP/1.1 persistent connection
the requests and replies would get out of sync. Here's what I mean - say
the requests and responses should have looked like this:

"Get me spam.gif" "OK, here is spam.gif"
"Get me eggs.gif" "OK, here is eggs.gif"
"Get me viking.gif" "OK, here is viking.gif"

you would get this:

"Get me spam.gif" "OK, here is spam.gif"
"Get me eggs.gif" "OK, here is spam.gif"
"Get me viking.gif" "OK, here is eggs.gif"

because the bug meant that the response for spam.gif was sent twice. The
second response would sit in the socket buffer and be picked up the next
time a request came in over the persistent connection.

Ethereal (http://www.ethereal.com/) will easily show you whether this is
happening to you - it's not at all likely, but the symptoms were exactly the
same as you describe.

--
Richie Hindle
ri****@entrian.com

Jul 18 '05 #4

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