Hello Marco,<br><br>I have this problems too in a not estress testing. In a simple access (2 concurrents users) I have this response:<br><br>2008-05-27T13:23:48 INFO ZODB conflict error at /portal/ (22 conflicts since startup at 2008-05-27T10:37:28) <br>
2008-05-27T13:23:48 INFO ZODB conflict error at /portal/ (23 conflicts since startup at 2008-05-27T10:37:28) <br>
2008-05-27T13:29:21 INFO ZODB conflict error at
/portal/login_form_usuario_pwd/ (29 conflicts since startup at
2008-05-27T10:37:28) <br>2008-05-27T13:29:22
INFO ZODB conflict error at /portal/login_form_usuario_pwd/ (30
conflicts since startup at 2008-05-27T10:37:28)<br>
2008-05-27T19:48:40 INFO ZODB conflict error at
/portal/portal_css/Plone Default/ploneStyles5658.css (68 conflicts
since startup at 2008-05-27T13:37:19)<br><br>How can they be solved?<br>Can I realize partial commits? How to?<br><br>Thanks in advance.<br>David<br><br><br><br><div class="gmail_quote">2008/6/5 Marco Bizzarri <<a href="mailto:marco.bizzarri@gmail.com" target="_blank">marco.bizzarri@gmail.com</a>>:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Even though I'm not a ZODB guru, I would suggest investigating if your<br>
page is really a read-only one.<br>
<br>
I had a case with ab tool which I used as a stress tool. It openend a<br>
new session for each client and each request, thus potentially causing<br>
conflicts.<br>
<br>
Regards<br>
Marco<br>
<div><div></div><div><br>
On Thu, Jun 5, 2008 at 12:10 PM, David Otero Figueroa <<a href="mailto:doterof@gmail.com" target="_blank">doterof@gmail.com</a>> wrote:<br>
><br>
><br>
> Hello everyone,<br>
><br>
> I have a couple questions related to "conflict errors".<br>
><br>
> During our home page stress testing (20 concurrent users), we detected<br>
> several conflict errors (see trace below), We thought these could ONLY<br>
> appear when writing objects in the ZODB.<br>
><br>
> 2008-05-27T18:57:53 INFO ZODB conflict error at /portal/ (26 conflicts since<br>
> startup at 2008-05-27T13:37:19)<br>
><br>
><br>
> I would like to know:<br>
> - Can conflict errors appear when reading objects from the ZODB?<br>
> - Could conflict errors be the cause of a "spinning ZOPE" scenario?<br>
> - Is there any situation where ZOPE could try to write objects when<br>
> rendering an "only read" page?<br>
><br>
> Our configuration is as follows: Apache + Pound + ZEO architecture (5 ZEO<br>
> clients, 1 ZEO storage server - 650.000 ZODB objects)<br>
><br>
> Thanks in advance.<br>
><br>
><br>
</div></div>> _______________________________________________<br>
> For more information about ZODB, see the ZODB Wiki:<br>
> <a href="http://www.zope.org/Wikis/ZODB/" target="_blank">http://www.zope.org/Wikis/ZODB/</a><br>
><br>
> ZODB-Dev mailing list - <a href="mailto:ZODB-Dev@zope.org" target="_blank">ZODB-Dev@zope.org</a><br>
> <a href="http://mail.zope.org/mailman/listinfo/zodb-dev" target="_blank">http://mail.zope.org/mailman/listinfo/zodb-dev</a><br>
><br>
><br>
<font color="#888888"><br>
<br>
<br>
--<br>
Marco Bizzarri<br>
<a href="http://iliveinpisa.blogspot.com/" target="_blank">http://iliveinpisa.blogspot.com/</a><br>
</font></blockquote></div><br>