I noticed this new plugin which looks like it could be handy – especially if you are tearing your hair out trying to debug issues with WPMU.
Included debug information:
* Show template file viewing
* Display page/query load times
* Display all queries executed w/ load times
* Enable WP_Debug
* Show all phpinfo
* WP_Query and WP array values
* included files
* included functions
* declared classes
* HTTP Headers
* defined constants
* current cookies
* values in $_SERVER
* values in $_ENV
* values in $_SESSION
* values in $_POST
* values in $_GET
* values in $_REQUEST
Excellent plugin. Great for trouble shooting.
I am not able to use this plugin on any blogs but the main blog. I can see header information at http://mydomain but nothing shows up at http://mydomain/blog1 . Looks like I am missing something here.