Hi, Configuration of Zope is a pain. Take a first look there: http://blip.tv/file/315714 Apache in your case is not the problem. I think this is your zope configuration (only one thread per instance is a good thing).
Try a different configuration for session. you can expect to see a ConflictError if your page take more than 20 seconds to be computed. zserver-threads 1 maximum-number-of-session-objects 10000 session-timeout-minutes 60 session-resolution-seconds 600 For the portal_transform, lynx is used to make html2text and index the content of type like document. Its better to get it but it this kind of log doesn't matter. I have never seen instance stop by themselve without logs i can't help you on that point. JeanMichel FRANCOIS Service TICE a écrit : > Hello > > After many searches I’m stuck on several problems, I hope you guys can > help me :) > > I’m using Plone as institutional webportal (Zope 2.9.8-final, python > 2.4.4) with python 2.4.4. The portal runs a zeocluster with 4 > production instances, 3 threads each, and 1 admin instance (in debug > mode). All instances share the same ZODB and data.fs on local drive. > We use Apache 2 and a "STICKY_ROUTE" cookie to redirect user to the > instance he's logged to. > We use SSO authentification (CAS) with PloneCASLogin 2.5.0. > > Apache configuration: > > ## Default Virtual Host Configuration > Listen xxx.xxx.xxx:80 > NameVirtualHost xxx.xxx.xxx:80 > <VirtualHost xxx.xxx.xxx:80> > ServerName xxx.xxx.xxx > ServerAdmin [EMAIL PROTECTED] > <Proxy balancer://lb> > BalancerMember http://xxx.xxx.xxx:8080 > route=8080" > BalancerMember http://xxx.xxx.xxx:8081 > route=8081" > BalancerMember http://xxx.xxx.xxx:8082 > route=8082" > BalancerMember http://xxx.xxx.xxx:8083 > route=8083" > </Proxy> > # conditional proxy pass > ProxyPass / balancer://lb/VirtualHostBase/http/xxx.xxx.xxx: > 80/plone/VirtualHostRoot/ stickysession=STICKY_ROUTE > #LOGS > #LogLevel debug > ServerAlias * > CustomLog /opt/apache2/xxx.xxx.xxx.log combined > </VirtualHost> > > > We noticed that, sometimes, users are not redirected to right > instance, so we decided to use the same temporary_folder for all > instances and users are connected to the 4 instances at same time. > > But this modification causes errors like this one from my event.log > file: > > 2008-11-26T10:45:23 INFO ZPublisher.Conflict ConflictError at / > VirtualHostBase/http/XXXXX.fr:80/XXXX/VirtualHostRoot/Cours/ > Cours.XXXXX.4424/fichiersan_XXXXX.2530/cours_supports_affichage: > database conflict error (oid 0x2571, class BTrees._OOBTree.OOBTree, > serial this txn started with 0x037a24a416ae79bb 2008-11-26 > 09:40:05.315987, serial currently committed 0x037a24a95ee0d788 > 2008-11-26 09:45:22.237099) (1 conflicts (0 unresolved) since startup > at Wed Nov 26 10:43:19 2008) > > and this one from plone's error_log: > > Request URL > > > http://XXXXXX.fr/Members/XXXXX/Cours/Cours.XXXXX.4648/cours_attacher_template > > Exception Type > > database conflict error (oid 0x1247, class > BTrees._OOBTree.OOBTree, serial this txn started with > 0x037a1ffe66682b66 2008-11-25 13:50:24.001620, serial currently > committed 0x037a1ffeae62ca44 2008-11-25 13:50:40.871695) > > Exception Value > > database conflict error (oid 0x1247, class > BTrees._OOBTree.OOBTree, serial this txn started with > 0x037a1ffe66682b66 2008-11-25 13:50:24.001620, serial currently > committed 0x037a1ffeae62ca44 2008-11-25 13:50:40.871695) > > Traceback (innermost last): > > * Module Zope2.App.startup, line 173, in zpublisher_exception_hook > * Module ZPublisher.Publish, line 121, in publish > * Module Zope2.App.startup, line 240, in commit > * Module transaction._manager, line 96, in commit > * Module transaction._transaction, line 380, in commit > * Module transaction._transaction, line 378, in commit > * Module transaction._transaction, line 436, in _commitResources > * Module ZODB.Connection, line 665, in tpc_vote > * Module ZEO.ClientStorage, line 893, in tpc_vote > * Module ZEO.ClientStorage, line 877, in _check_serials > > ConflictError: database conflict error (oid 0x1247, class > BTrees._OOBTree.OOBTree, serial this txn started with > 0x037a1ffe66682b66 2008-11-25 13:50:24.001620, serial currently > committed 0x037a1ffeae62ca44 2008-11-25 13:50:40.871695) > > From what I understand, there's a conflict in my database when user > wants to access an object. I assume it's related to the > temporary_folder sharing modification because errors appeared after it. > Is there a way to resolve this error? Is there inconvenient to share > temporary_folder? Should I stop it? > > My second problem, found in the event.log: > > 2008-11-26T10:45:28 ERROR PortalTransforms Cannot register transform > lynx_dump, using BrokenTransform: Error > Unable to find binary "lynx" in /opt/local/bin:/usr/bin:/bin:/usr/ > sbin:/sbin:/usr/local/bin:/usr/X11/bin > > I don't understand when and why Plone tries to access to Lynx. We > don't receive any traceback error in Plone's error_log. > > Last but not least. Sometimes instances stops all alone. We were not > able to find why because we don't receive any error, message or > signal. When stops occur, we restart Zeo by ssh, then instances works > fine for some times but the problem comes back later. > The server has 8 processors with very low usage but the 12gb RAM are > always saturated à 98%. Python process takes 1 to 2gb RAM but there's > a lot of "httpd" processes, up to 2.5gb each, their origin remains > unknown to us. > > Thanks > _______________________________________________ > Zope-Dev maillist - Zope-Dev@zope.org > http://mail.zope.org/mailman/listinfo/zope-dev > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope ) > _______________________________________________ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )