sudo mod_wsgi_express start-server example 2

See also

By default when have: 

mod_wsgi-express start-server

Server URL         : http://localhost:8000/
Server Root        : /tmp/mod_wsgi-localhost:8000:5099
Server Conf        : /tmp/mod_wsgi-localhost:8000:5099/httpd.conf
Error Log File     : /tmp/mod_wsgi-localhost:8000:5099/error_log
Locale Setting     : en_US.ISO8859-1
Daemon Processes   : 1
Daemon Threads     : 5

it is only listen for socket connections coming from localhost.

If you need to access it from another machine, you would need to use: 

mod_wsgi start-server --host=public.name.of.host

or on some systems you can say: 

mod_wsgi start-server --host=0.0.0.0

Anyway, you at least have it crashing when running as yourself now. We can therefore run gdb again and not have the root squash issue.

First, run: 

mod_wsgi-express start-server --debug-mode --setup-only

Look in the file:

/tmp/mod_wsgi-localhost:8000:5099/apachectl

At the top you run see a HTTPD variable, with a setting like: 

HTTPD="/usr/local/httpd-2.4.x/bin/httpd -f /tmp/mod_wsgi-localhost:8000:502/httpd.conf -DONE_PROCESS"

Yours may list other -D options.

Run gdb on the ‘httpd’ executable path which is first value in that: 

gdb /usr/local/httpd-2.4.x/bin/httpd

Then in gdb, use the rest of that value: 

run -f /tmp/mod_wsgi-localhost:8000:502/httpd.conf -DONE_PROCESS"

If crashes, enter: 

where

at gdb prompt.

Makes me think I should add an option to mod_wsgi-express specifically to run httpd under gdb to make that easier. :-)