Start mongrel in ssh session and then exit in Ubuntu 10.04

Hi all,

I'm deploying a Rails application in a Ubuntu 10.04 server with
mongrel web server. I connect to server and do stuffs in a ssh client
(PuTTY). And I'm getting stuck with a strange issue:
1. After I connected to server, I start mongrel with : $ start-stop-
daemon -S -d . -x script/server -b -- -p 8080
2. I left the ssh console and launch firefox from my Win7 box and open
the website, it runs well. I can see the homepage
3. I go back to the ssh console. Close the terminal (and window too)
it by : $ exit
4. Then in firefox, I press F5 to refresh and nothing shows up. It's
just an empty space in whole webpage. I tried to use addon to capture
the HTTP data and see that the server returns nothing , even HTTP
headers

I thought that using start-stop-daemon command could help me run
mongrel as daemon and then I can exit my session just as apache does.
But it doesn't work.

Do I miss something ?

Duy

Updated the message with two more steps

5. I connect to server again, run "ps -Af" to check and see that the
process's still running. And again, leave the console, switch to
firefox and refresh -> the homepage shows everything.
6. But if I exit the ssh session and refresh browser, the web server
returns nothing again

Quoting Duy Lam <duylamphuong@gmail.com>:

Hi all,

I'm deploying a Rails application in a Ubuntu 10.04 server with
mongrel web server. I connect to server and do stuffs in a ssh client
(PuTTY). And I'm getting stuck with a strange issue:
1. After I connected to server, I start mongrel with : $ start-stop-
daemon -S -d . -x script/server -b -- -p 8080
2. I left the ssh console and launch firefox from my Win7 box and open
the website, it runs well. I can see the homepage
3. I go back to the ssh console. Close the terminal (and window too)
it by : $ exit
4. Then in firefox, I press F5 to refresh and nothing shows up. It's
just an empty space in whole webpage. I tried to use addon to capture
the HTTP data and see that the server returns nothing , even HTTP
headers

I thought that using start-stop-daemon command could help me run
mongrel as daemon and then I can exit my session just as apache does.
But it doesn't work.

Possible workaround, ssh into server, at shell type "screen", hit space bar,
start server, type control-A control-D to detach from screen, logout of SSH
session. Later you can log in and type "screen -r" to resume the screen
session.

I also find this very useful for long operations on remote systems that might
lose the connection (e.g. dialup and wifi).

HTH,
  Jeffrey