Ifstated monitoring demon with threads help.

[keith]

Hi,
            I am trying to get ifstated to monitor nginx & relayd 
demons but can't quite figure out how to do it.  As both nginx & relayd 
have a master process and child threads, I am trying to figure out how 
to check that all the processes are running and if there's a problem 
(maby one thread dies)  kill the service and restart it. As I think this 
is the correct to thing to do.

This is my ifstated.conf for nginx, It checks for a predefined number of 
processes and if there's a problem It trys to kill the process and start 
it again. But it doesn't work. Can anyone help ?

init-state auto

# ps -aux and check that there are 6 processes running
nginx_check = '( "ps -aux | grep \"nginx\" | grep -v grep | wc -l | grep 
6" every 5)'

state auto {
        if $nginx_check {
              set-state nginx_online
        }
        if ! $nginx_check {
              set-state nginx_offline
        }
}

# When nginx comed up log it.
state nginx_online {
        init {
        run "echo Nginx Up : $(date) >> /var/log/ifstated.log"
        }
        if ! $nginx_check {
              set-state nginx_offline
        }
}

# When nginx is down or there's not 6 process running, kill the remain 
processes and restart,
# This is the part that's not working.
state nginx_offline {
        init {

        run "echo Nginx Down : $(date) >> /var/log/ifstated.log"
        run "pkill nginx | sleep 5"
        run "nginx -c /etc/nginx/nginx.conf"

         }
        if $nginx_check {
             set-state nginx_online
        }
}


Thanks
Keith