<div class="gmail_quote">
<font size="2">Hello everyone,<br></font><div><p>
<font size="2"><br></font>
<font size="2">I have a couple questions related to "conflict errors". <br><br></font>
<font size="2">During our home page stress testing (20 concurrent
users), we detected several conflict errors (see trace below), We
thought these could ONLY appear when writing objects in the ZODB.<br></font></p><div>
<font size="2">2008-05-27T18:57:53 INFO ZODB conflict error at /portal/ (26 conflicts since startup at 2008-05-27T13:37:19) <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><br></font>
</div><font size="2">I would like to know:<br></font>
<font size="2">- Can conflict errors appear when reading objects from the ZODB?<br></font>
<font size="2">- Could conflict errors be the cause of a "spinning ZOPE" scenario?<br></font>
<font size="2">- Is there any situation where ZOPE could try to write objects when rendering an "only read" page?<br>- How can they be solved?<br>
- Can I realize partial commits? How to?<br><br></font>
<font size="2">Our configuration is as follows: Apache + Pound + ZEO architecture (5 ZEO clients, 1 ZEO storage server - 650.000 ZODB objects)<br><br></font>
<font size="2">Thanks in advance.</font></div></div>