Nicolas Richeton

A few days ago, I had issues installing ElasticPath on my Windows VMs : the installer’s window never showed up. At first, I suspected that the installer was simply not compatible withVirtualBox.

But things started to become really strange when I tried to debug the Java process launched by the installer (which was eating all CPU time) with Visual VM or JConsole. Both tools were unable to start.

After a quick search on Virtualbox bug tracker, here is the answer :

Any Java Swing/AWT application will crash if 3d support was selected in Virtualbox guest additions. (Virtualbox 3.2.X and Only on JVM > 1.6u6)

See this bug report for details : http://www.virtualbox.org/ticket/6873

My current cheat sheet for OpenVZ on Debian. Will be updated continuously. Comments are welcome.

Installation
apt-get install linux-image-...-vz

Getting Debian Lenny template

in /var/lib/vz/templates/cache :
wget http://download.openvz.org/template/precreated/debian-5.0-x86.tar.gz

Create VM
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Thanks to Mantis But Tracker and with some time spent to recreate issues for the latest commits, both Web Assemble Tool and Stateless Filter now have a changelog available.

WAT :
https://sourceforge.net/apps/mantisbt/webassembletool/changelog_page.php

Stateless filter :
https://sourceforge.net/apps/mantisbt/statelessfilter/changelog_page.php

This gives a better visibility on the activity and the latest changes/releases of these projects.

Working with Spring, Log4j and Tomcat, you may have faced the following error, which prevents your web application to start :

Logs in french :
org.apache.catalina.core.StandardContext start GRAVE: Error listenerStart
org.apache.catalina.core.StandardContext start GRAVE: Erreur de démarrage du contexte [/mywebapp] suite aux erreurs précédentes

Logs in english :
org.apache.catalina.core.StandardContext start SEVERE: Error listenerStart
org.apache.catalina.core.StandardContext start SEVERE: Context [/mywebapp] startup failed due to previous errors

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Working with large cookies and jetty, you may have faced this error :

2010-03-11 18:18:31.275:WARN::HttpException(413,FULL head,null)

This is because jetty allows only 4ko for HTTP request and response headers. Using large cookies is enough to reach the limit.

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