mongod service script

mongod.sh

#!/bin/bash
# mongod
# 
# chkconfig: 2345 
# description:  Scalable, high-performance, open source, document-oriented 
#               database. Written in C++.
#
# processname: mongod
# pidfile: /var/run/mongod.pid
# config: /etc/mongod.conf

. /etc/init.d/functions # Source function library.

EXE=/opt/mongodb/bin/mongod
CONF=/etc/mongod.conf
PIDFILE=/var/run/mongod.pid

prog="mongod"

start()
{
    if [ -f $PIDFILE ]; then
        ret=0
        echo "$PIDFILE exists, process already running."
    else
        $EXE --config $CONF --pidfilepath $PIDFILE > /dev/null
        ret=$?
    fi
    
    if [ $ret -eq 0 ]; then
       action $"Starting $prog: " /bin/true
    else
        action $"Starting $prog: " /bin/false
    fi
    
    return $ret
}

stop()
{
    if [ ! -f $PIDFILE ]; then
        ret=1
        echo "$PIDFILE does not exist."
    else
        PID=$(cat $PIDFILE)
        if [ -n $PID ]; then 
            `kill -2 $PID`
            ret=$?
            echo -n "Waiting for $prog to stop "
            while [ -x /proc/${PID} ]; do
                echo -n  "."
                sleep 1
            done
            echo 
            rm $PIDFILE
        else
            ret=1
            echo "$PID does not exist."
        fi
    fi
    
    if [ $ret -eq 0 ]; then
       action $"Stopping $prog: " /bin/true
    else
        action $"Stopping $prog: " /bin/false
    fi
    
    return $ret
}

case $1 in
    start)
        start
        ;;
    stop)
        stop
        ;;
      restart)
        stop
        start
        ;;
     status)
        status $prog
        ;;
      *)
        echo "Usage: $0 (start|stop|restart|status)"
        exit 1
esac

exit $?