mariadb-manager-monitor

#!/bin/sh
#
# Part of MariaDB Manager package.
#
# This file is distributed as part of the MariaDB Manager package.
# It is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright 2013-2014 (c) SkySQL Corporation Ab
#
# Author      : Stefano Simonelli, Massimo Siani
# Version     : 2.22
# Date        : November 2013
# Description : LSB script for MariaDB Manager Monitor
# Note        : Script location must be: /etc/init.d  - with execute permission
# Returns     : 0 = OK - 1 = Warning
# 
# chkconfig: 2345 80 20
# description: Starts the MariaDB-Manager Monitor
#
### BEGIN INIT INFO
# Provides:          mariadb-manager-monitor
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start mariadb-manager-monitor at boot time
# Description:       Enable service provided by daemon.
### END INIT INFO

## variables
vMonitorDir=/usr/local/skysql/monitor
vMonitorJar=ClusterMonitor.jar
vShareDir=/usr/local/skysql/share
vShareFile1=skysql-java-shared.jar
vJavaClasspath="${vMonitorDir}/${vMonitorJar}:${vShareDir}/*"
vJavaSettings="-Duser.language=en -Duser.country=GB"

## set to -v for verbosity, empty or comment otherwise
#verbose="-v"


fGetMonitorPid() {
    vMonitorPid=`ps -efwwww | grep ClusterMonitor.jar | grep -v grep | awk '{print $2}'`                    
} 

case "$1" in

    ###################################################################################################################
    'start') 
        fGetMonitorPid           
                
        if [ "${vMonitorPid}" != "" ]; then
        
            echo "`date` - Warning: MariaDB Manager Monitor is already running on `hostname`, process $vMonitorPid"
            vRetVal=1

        else
            ### Starting the Monitor ##################################################################################
            echo "`date` - Start: MariaDB Manager Monitor is starting "
    
            PATH=${PATH}:/usr/sbin
    
            java -cp ${vJavaClasspath} ${vJavaSettings} com.skysql.monitor.ClusterMonitor $verbose all &

            ### Check if the process is started ###############################################################
            sleep 1
            fGetMonitorPid
                    
            if [ "${vMonitorPid}" != "" ]; then
            
                vRetVal=0
            else
                echo "`date` - Warning: MariaDB Manager Monitor is NOT running on `hostname`"
                vRetVal=1            
            fi
            
            ###########################################################################################################           
        fi
                
        ;;

    ###################################################################################################################
    'stop')       
        fGetMonitorPid
                
        if [ "${vMonitorPid}" != "" ]; then

            echo "`date` - Stop: MariaDB Manager Monitor is stopping "
                        
            ### Stop the Monitor ######################################################################################
			kill -9 $vMonitorPid
            ###########################################################################################################

            ### Check if the process is already running ###############################################################
			sleep 1
            fGetMonitorPid
            if [ "${vMonitorPid}" != "" ]; then
            
                kill -9 $vMonitorPid        
            fi                     
            ###########################################################################################################
            
            vRetVal=0
        else
            echo "`date` - Status: MariaDB Manager Monitor is NOT running on `hostname`"
            vRetVal=0
        fi                     
        ;;

    ###################################################################################################################
    'reload'|'restart')
        $0 stop
        $0 start

        vRetVal=$?
        ;;

    ###################################################################################################################
    'status')
        fGetMonitorPid
                
        if [ "${vMonitorPid}" != "" ]; then
            echo "`date` - Status: MariaDB Manager Monitor is running on `hostname`, process $vMonitorPid"
            vRetVal=0
        else
            echo "`date` - Status: MariaDB Manager Monitor is NOT running on `hostname`"
            vRetVal=0
        fi
        ;;
    
    ###################################################################################################################   
    *)
        echo "Usage: MariaDB Manager Monitor - $0 {start|stop|restart|reload|status}"

        vRetVal=1
        ;;
esac

exit $vRetVal