For you particular case I don&#39;t see common thing that could cause this. In fact I never seen the error message &quot;Illegal attempt to associate a collection with two open sessions&quot;, which databases server do you use ?<br>
We had some problems with migration from older XWiki version because some XWikiUsers class fields has been modified but it was between 1.1 and 1.2.<br><br>Maybe someone else has any idea.<br><br><div class="gmail_quote">On Mon, Mar 10, 2008 at 6:06 PM, Benjamin Leung &lt;<a href="mailto:benjamin.k.leung@gmail.com">benjamin.k.leung@gmail.com</a>&gt; wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div>Thanks Thomas.</div>
<div>&nbsp;</div>
<div>I think you got it.&nbsp; I can login using bleung again after some messing around.</div>
<div>&nbsp;</div>
<div>However.&nbsp; It appears that I can save the wiki page (/xwiki/bin/view/XWiki/bleung) using Admin/admin.</div>
<div>I was sucessful adding text in the wiki content, text in tag object, and comments in the XWikiUsers object.</div>
<div>Then, I rolled back the profile to version 1.&nbsp; And I was able to logon using bleung again.</div>
<div>&nbsp;</div>
<div>Then it raises the question about how it got corrupted.&nbsp; I can be my fault because I am frequently restarting various services.&nbsp; </div>
<div>&nbsp;</div>
<div>But please let me know if this is something common and/or can be advoided.</div>
<div>&nbsp;</div>
<div>Thanks!</div>
<div>BL<font color="#888888"><br><br></font></div><div><div></div><div class="Wj3C7c">
<div class="gmail_quote">On Mon, Mar 10, 2008 at 12:27 PM, Thomas Mortagne &lt;<a href="mailto:thomas.mortagne@xwiki.com" target="_blank">thomas.mortagne@xwiki.com</a>&gt; wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">Hi,<br><br>Are you able to edit and save XWiki.bleung wiki page ? Maybe there is a data corrupted problem...<br>

<br>
<div class="gmail_quote">
<div>
<div></div>
<div>On Mon, Mar 10, 2008 at 5:12 PM, Benjamin Leung &lt;<a href="mailto:benjamin.k.leung@gmail.com" target="_blank">benjamin.k.leung@gmail.com</a>&gt; wrote:<br></div></div>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div></div>
<div>
<div>Hi list,</div>
<div>&nbsp;</div>
<div>My setup with LDAP authentication was kind-of working for the last several days (able to login with/without using work arounds).&nbsp; Today it stopped working for one account (bleung).</div>
<div>&nbsp;</div>
<div>From the log file, it seems it failed when xwiki tried to update/synchronize a user&#39;s profile resulting inability to logon.&nbsp; I actually see the login registered on the top right of a xwiki page, but actually you&#39;re not (navigating away from&nbsp;that page and the login is gone).</div>


<div>&nbsp;</div>
<div>The error message mentioned something about:</div>
<div>1. Exception while saving document XWiki.bleung (bleung is login name)</div>
<div>2. Exception while saving property tags of object XWiki.bleung</div>
<div>3. Illegal attempt to associate a collection with two open sessions</div>
<div>&nbsp;</div>
<div>Attached is the xwiki log file generated with the following steps:</div>
<div>1. reboot</div>
<div>2. clear firefox cookies</div>
<div>3. start tomcat</div>
<div>4. goto local xwiki homepage</div>
<div>5. logon using LDAP credential </div>
<div>6.&nbsp;goto&nbsp;local xwiki homepage again (and login status disappeared from UI)</div>
<div>7. shutdown tomcat</div>
<div>&nbsp;</div>
<div>Anyhelp would be appreciated.&nbsp; </div>
<div>&nbsp;</div>
<div>My setup:</div>
<div>xwiki 1.3 final</div>
<div>Windows XP Pro</div>
<div>Oracle 10g</div>
<div>Tomcat 6.0.16</div>
<div>LDAP authentication (AD)</div><br></div></div>_______________________________________________<br>users mailing list<br><a href="mailto:users@xwiki.org" target="_blank">users@xwiki.org</a><br><a href="http://lists.xwiki.org/mailman/listinfo/users" target="_blank">http://lists.xwiki.org/mailman/listinfo/users</a><br>

<br></blockquote></div><br><br clear="all"><br>-- <br><font color="#888888">Thomas Mortagne </font><br>_______________________________________________<br>users mailing list<br><a href="mailto:users@xwiki.org" target="_blank">users@xwiki.org</a><br>

<a href="http://lists.xwiki.org/mailman/listinfo/users" target="_blank">http://lists.xwiki.org/mailman/listinfo/users</a><br><br></blockquote></div><br>
</div></div><br>_______________________________________________<br>
users mailing list<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Thomas Mortagne