Do you get this kind of error “Hudson detected that you appear to be running more than one instance of Hudson that share the same home directory”

then its possibly because there are 2 instances of Hudson running.

I got this error when I deployed Hudson war in Tomcat server and set the ROOT context to point to the Hudson web application. Google search gave me this Hudson discussion link, which lead me to the solution.

I checked the running applications using Tomcat Manager web application, and found that 2 Hudson apps were installed one running at context /hudson and another at ROOT context. Solution to this problem was to remove the>

entry from server.xml and then rename hudson directory under webapps to ROOT directory

If you want to quickly find out the environmental variables available in your Hudson instance go to the following URL **http:///env-vars.html** or [this page](http://wiki.hudson-ci.org/display/HUDSON/Building+a+software+project#Buildingasoftwareproject-HudsonSetEnvironmentVariables) also gives the list

Found this neat graphic through this Ajaxian blog post

It shows the features of HTML5 and also the different browsers support for the same.

Cooliris gives a interface which seems more natural for viewing photos or videos instead of clicking next and previous buttons. This interface seems to be similar to the one shown in this TED talk presentation [ted id=872]

I wanted to install Git in CentOS release 5.3, but running command

yum install Git

did not work. Then I found this blog which gave instruction on how to do it.