Not able to control the process in the example using mongroup

[sahilsk]

I used the default example to perform following action

cd example

Edited mongroup.conf file to provide pid and log directory

Started the mongroup inside example folder
mongroup start >> All 5 instances launched
mongroup stop >> All 5 instances stopped.

mongroup restart >> All 5 instances restarted.

Now i kill web2 instance using : ps -ef , kill PID_FOUND
Here mongroup try to restart the process but couldn't
Here is the web2.log file output

---====================
Error: listen EADDRINUSE
at errnoException (net.js:646:11)
at Array.0 (net.js:747:26)
at EventEmitter._tickCallback (node.js:192:41)
[ 'node',
'/home/vagrant/mongroup/example/alert.js',
'restart',
'web2',
'27120' ]
Server running at http://127.0.0.1:8002/

node.js:201
throw e; // process.nextTick error, or 'error' event on first tick
^
Error: listen EADDRINUSE
at errnoException (net.js:646:11)
at Array.0 (net.js:747:26)
at EventEmitter._tickCallback (node.js:192:41)
[ 'node',
'/home/vagrant/mongroup/example/alert.js',
'restart',
'web2',
'27154' ]
Server running at http://127.0.0.1:8002/

node.js:201
throw e; // process.nextTick error, or 'error' event on first tick
^
Error: listen EADDRINUSE
at errnoException (net.js:646:11)
at Array.0 (net.js:747:26)
at EventEmitter._tickCallback (node.js:192:41)
root@vagrant-ubuntu-precise-64:/home/vagrant/mongroup/example#

--=====================

After 4 tries mongroup failed to start this process. If mongroup not restarting process then how come web2 is still online and why mongroup looses track of this process? mongroup stop/start looses control over this process.
Kindly pardon my ignorance and help me debug this.

[jgallen23]

which pid did you kill? the web2.mon.pid or web2.pid?

There is a shortcut to restarting a specific process: mongroup restart web2 does that work for you?