ASEHAagent.sh.in
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ASEHAagent.sh.in
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	#!@BASH_SHELL@

	#
	# Sybase Availability Agent for Red Hat Cluster v15.0.2
	# Copyright (C) - 2007
	# Sybase, Inc. All rights reserved.
	#
	# Sybase Availability Agent for Red Hat Cluster v15.0.2 is licensed
	# under the GNU General Public License Version 2.
	#
	# Author(s):
	# Jian-ping Hui <jphui@sybase.com>
	#
	# Description: Service script for starting/stopping/monitoring \
	# Sybase Adaptive Server on: \
	# Red Hat Enterprise Linux 5 ES \
	# Red Hat Enterprise Linux 5 AS
	#
	# NOTES:
	#
	# (1) Before running this script, we assume that user has installed
	# Sybase ASE 15.0.2 or higher version on the machine. Please
	# customize your configuration in /etc/cluster/cluster.conf according
	# to your actual environment. We assume the following files exist before
	# you start the service:
	# /$sybase_home/SYBASE.sh
	# /$sybase_home/$sybase_ase/install/RUN_$server_name
	#
	# (2) You can customize the interval value in the meta-data section if needed:
	# <action name="start" timeout="300" />
	# <action name="stop" timeout="300" />
	#
	# <!-- Checks to see if it''s mounted in the right place -->
	# <action name="status" interval="30" timeout="100" />
	# <action name="monitor" interval="30" timeout="100" />
	#
	# <!--Checks to see if we can read from the mountpoint -->
	# <action name="status" depth="10" timeout="100" interval="120" />
	# <action name="monitor" depth="10" timeout="100" interval="120" />
	#
	# <action name="meta-data" timeout="5" />
	# <action name="validate-all" timeout="5" />
	# The timeout value is not supported by Redhat in RHCS5.0.
	#
	# (3) This script should be put under /usr/share/cluster. Its owner should be "root" with
	# execution permission.
	#

	. /etc/init.d/functions
	. $(dirname $0)/ocf-shellfuncs

	PROG=${0}

	export LD_POINTER_GUARD=0

	#######################################################################################
	# Declare some variables we will use in the script. Please don't change their values. #
	#######################################################################################
	declare login_string=""
	declare RUNSERVER_SCRIPT=$OCF_RESKEY_sybase_home/$OCF_RESKEY_sybase_ase/install/RUN_$OCF_RESKEY_server_name
	declare CONSOLE_LOG=$OCF_RESKEY_sybase_home/$OCF_RESKEY_sybase_ase/install/$OCF_RESKEY_server_name.log

	##################################################################################################
	# This function will be called by rgmanager to get the meta data of resource agent "ASEHAagent". #
	# NEVER CHANGE ANYTHING IN THIS FUNCTION.
	##################################################################################################
	meta_data()
	{
	cat <<EOT
	<?xml version="1.0" ?>
	<resource-agent name="ASEHAagent" version="rgmanager 2.0">
	<version>1.0</version>

	<longdesc lang="en">
	Sybase ASE Failover Instance
	</longdesc>
	<shortdesc lang="en">
	Sybase ASE Failover Instance
	</shortdesc>

	<parameters>
	<parameter name="name" unique="1" primary="1">
	<longdesc lang="en">
	Instance name of resource agent "ASEHAagent"
	</longdesc>
	<shortdesc lang="en">
	name
	</shortdesc>
	<content type="string" />
	</parameter>

	<parameter name="sybase_home" required="1">
	<longdesc lang="en">
	The home directory of sybase products
	</longdesc>
	<shortdesc lang="en">
	SYBASE home directory
	</shortdesc>
	<content type="string" />
	</parameter>

	<parameter name="sybase_ase" required="1">
	<longdesc lang="en">
	The directory name under sybase_home where ASE products are installed
	</longdesc>
	<shortdesc lang="en">
	SYBASE_ASE directory name
	</shortdesc>
	<content type="string" default="ASE-15_0" />
	</parameter>

	<parameter name="sybase_ocs" required="1">
	<longdesc lang="en">
	The directory name under sybase_home where OCS products are installed, i.e. ASE-15_0
	</longdesc>
	<shortdesc lang="en">
	SYBASE_OCS directory name
	</shortdesc>
	<content type="string" default="OCS-15_0" />
	</parameter>

	<parameter name="server_name" required="1">
	<longdesc lang="en">
	The ASE server name which is configured for the HA service
	</longdesc>
	<shortdesc lang="en">
	ASE server name
	</shortdesc>
	<content type="string" />
	</parameter>

	<parameter name="login_file" required="1">
	<longdesc lang="en">
	The full path of login file which contains the login/password pair
	</longdesc>
	<shortdesc lang="en">
	Login file
	</shortdesc>
	<content type="string" />
	</parameter>

	<parameter name="interfaces_file" required="1">
	<longdesc lang="en">
	The full path of interfaces file which is used to start/access the ASE server
	</longdesc>
	<shortdesc lang="en">
	Interfaces file
	</shortdesc>
	<content type="string" />
	</parameter>

	<parameter name="sybase_user" required="1">
	<longdesc lang="en">
	The user who can run ASE server
	</longdesc>
	<shortdesc lang="en">
	Sybase user
	</shortdesc>
	<content type="string" default="sybase" />
	</parameter>

	<parameter name="shutdown_timeout" required="1">
	<longdesc lang="en">
	The maximum seconds to wait for the ASE server to shutdown before killing the process directly
	</longdesc>
	<shortdesc>
	Shutdown timeout value
	</shortdesc>
	<content type="integer" default="0" />
	</parameter>

	<parameter name="start_timeout" required="1">
	<longdesc lang="en">
	The maximum seconds to wait for an ASE server to complete before determining that the server had failed to start
	</longdesc>
	<shortdesc lang="en">
	Start timeout value
	</shortdesc>
	<content type="integer" default="0" />
	</parameter>

	<parameter name="deep_probe_timeout" required="1">
	<longdesc lang="en">
	The maximum seconds to wait for the response of ASE server before determining that the server had no response while running deep probe
	</longdesc>
	<shortdesc lang="en">
	Deep probe timeout value
	</shortdesc>
	<content type="integer" default="0" />
	</parameter>
	</parameters>
	<actions>
	<action name="start" timeout="300" />
	<action name="stop" timeout="300" />

	<!-- Checks to see if it''s mounted in the right place -->
	<action name="status" interval="30" timeout="100" />
	<action name="monitor" interval="30" timeout="100" />

	<!--Checks to see if we can read from the mountpoint -->
	<action name="status" depth="10" timeout="100" interval="120" />
	<action name="monitor" depth="10" timeout="100" interval="120" />

	<action name="meta-data" timeout="5" />
	<action name="validate-all" timeout="5" />
	</actions>

	<special tag="rgmanager">
	</special>
	</resource-agent>
	EOT
	}

	##################################################################################################
	# Function Name: verify_all #
	# Parameter: None #
	# Return value: #
	# 0 SUCCESS #
	# OCF_ERR_ARGS Parameters are invalid #
	# Description: Do some validation on the user-configurable stuff at the beginning of the script. #
	##################################################################################################
	verify_all()
	{
	ocf_log debug "ASEHAagent: Start 'verify_all'"

	# Check if the parameter 'sybase_home' is set.
	if [[ -z "$OCF_RESKEY_sybase_home" ]]
	then
	ocf_log err "ASEHAagent: The parameter 'sybase_home' is not set."
	return $OCF_ERR_ARGS
	fi

	# Check if the parameter 'sybase_home' is a valid path.
	if [[ ! -d $OCF_RESKEY_sybase_home ]]
	then
	ocf_log err "ASEHAagent: The sybase_home '$OCF_RESKEY_sybase_home' doesn't exist."
	return $OCF_ERR_ARGS
	fi

	# Check if the script file SYBASE.sh exists
	if [[ ! -f $OCF_RESKEY_sybase_home/SYBASE.sh ]]
	then
	ocf_log err "ASEHAagent: The file $OCF_RESKEY_sybase_home/SYBASE.sh is required to run this script. Failed to run the script."
	return $OCF_ERR_ARGS
	fi

	# Check if the parameter 'sybase_ase' is set.
	if [[ -z "$OCF_RESKEY_sybase_ase" ]]
	then
	ocf_log err "ASEHAagent: The parameter 'sybase_ase' is not set."
	return $OCF_ERR_ARGS
	fi

	# Check if the directory /$OCF_RESKEY_sybase_home/$OCF_RESKEY_sybase_ase exists.
	if [[ ! -d $OCF_RESKEY_sybase_home/$OCF_RESKEY_sybase_ase ]]
	then
	ocf_log err "ASEHAagent: The directory '$OCF_RESKEY_sybase_home/$OCF_RESKEY_sybase_ase' doesn't exist."
	return $OCF_ERR_ARGS
	fi

	# Check if the parameter 'sybase_ocs' is set.
	if [[ -z "$OCF_RESKEY_sybase_ocs" ]]
	then
	ocf_log err "ASEHAagent: The parameter 'sybase_ocs' is not set."
	return $OCF_ERR_ARGS
	fi

	# Check if the directory /$OCF_RESKEY_sybase_home/$OCF_RESKEY_sybase_ocs exists.
	if [[ ! -d $OCF_RESKEY_sybase_home/$OCF_RESKEY_sybase_ocs ]]
	then
	ocf_log err "ASEHAagent: The directory '$OCF_RESKEY_sybase_home/$OCF_RESKEY_sybase_ocs' doesn't exist."
	return $OCF_ERR_ARGS
	fi

	# Check if the parameter 'server_name' is set.
	if [[ -z "$OCF_RESKEY_server_name" ]]
	then
	ocf_log err "ASEHAagent: The parameter 'server_name' is not set."
	return $OCF_ERR_ARGS
	fi

	# Check if the Run_server file exists.
	if [[ ! -f $RUNSERVER_SCRIPT ]]
	then
	ocf_log err "ASEHAagent: The file $RUNSERVER_SCRIPT doesn't exist. The sybase directory may be incorrect."
	return $OCF_ERR_ARGS
	fi

	# Check if the parameter 'login_file' is set.
	if [[ -z "$OCF_RESKEY_login_file" ]]
	then
	ocf_log err "ASEHAagent: The parameter 'login_file' is not set."
	return $OCF_ERR_ARGS
	fi

	# Check if the login file exist.
	if [[ ! -f $OCF_RESKEY_login_file ]]
	then
	ocf_log err "ASEHAagent: The login file '$OCF_RESKEY_login_file' doesn't exist."
	return $OCF_ERR_ARGS
	fi

	# Check if the parameter 'sybase_user' is set
	if [[ -z "$OCF_RESKEY_sybase_user" ]]
	then
	ocf_log err "ASEHAagent: The parameter 'sybase_user' is not set."
	return $OCF_ERR_ARGS
	fi

	# Check if the user 'sybase_user' exist
	id -u $OCF_RESKEY_sybase_user
	if [[ $? != 0 ]]
	then
	ocf_log err "ASEHAagent: The user '$OCF_RESKEY_sybase_user' doesn't exist in the system."
	return $OCF_ERR_ARGS
	fi

	# Check if the parameter 'interfaces_file' is set
	if [[ -z "$OCF_RESKEY_interfaces_file" ]]
	then
	ocf_log err "ASEHAagent: The parameter 'interfaces_file' is not set."
	return $OCF_ERR_ARGS
	fi

	# Check if the file 'interfaces_file' exists
	if [[ ! -f $OCF_RESKEY_interfaces_file ]]
	then
	ocf_log err "ASEHAagent: The interfaces file '$OCF_RESKEY_interfaces_file' doesn't exist."
	return $OCF_ERR_ARGS
	fi

	# Check if the parameter 'shutdown_timeout' is a valid value
	if [[ $OCF_RESKEY_shutdown_timeout -eq 0 ]]
	then
	ocf_log err "ASEHAagent: The parameter 'shutdown_timeout' is not set. Its value cannot be zero."
	return $OCF_ERR_ARGS
	fi

	# Check if the parameter 'start_timeout' is a valid value
	if [[ $OCF_RESKEY_start_timeout -eq 0 ]]
	then
	ocf_log err "ASEHAagent: The parameter 'start_timeout' is not set. Its value cannot be zero."
	return $OCF_ERR_ARGS
	fi

	# Check if the parameter 'deep_probe_timeout' is a valid value
	if [[ $OCF_RESKEY_deep_probe_timeout -eq 0 ]]
	then
	ocf_log err "ASEHAagent: The parameter 'deep_probe_timeout' is not set. Its value cannot be zero."
	return $OCF_ERR_ARGS
	fi

	ocf_log debug "ASEHAagent: End 'verify_all' successfully."

	return 0
	}

	################################################################################################################
	# Function name: get_login_string #
	# Parameter: None #
	# Return value: #
	# 0 SUCCESS #
	# 1 FAIL #
	# Description: Analyze the login_file to format the login string. This function will set the global variable #
	# "login_string". If the login/password is clear text, the "login_string" will become to "-Ulogin #
	# -Ppassword" if there is no error. If there are any errors in this function, the string #
	# "login_string" will be still empty. In current stage, the encrypted string is not supported #
	# because "haisql" is not available on this platform. #
	################################################################################################################
	get_login_string()
	{
	tmpstring=""
	login_sting=""

	# Read the first column. The valid value will be "normal" or "encrypted". Any other values are invalid.
	login_type=`head -1 $OCF_RESKEY_login_file \| awk '{print $1}'`
	if [[ $login_type = "normal" ]]
	then
	# The login/password pair is saved in clear text.
	# Abstract the login/password from the line.
	tmpstring=`head -1 $OCF_RESKEY_login_file \| awk '{print $2}'`

	# Abstract "user" from the string.
	user=`echo $tmpstring \| awk -F'/' '{print $1}'`
	# Check if the "user" string is NULL. If it is NULL, it means this is not a valid user.
	if [[ -z $user ]]
	then
	ocf_log err "ASEHAagent: Login username is not specified in the file '$OCF_RESKEY_login_file'"
	return 1
	fi

	# Abstract "password" from the string.
	passwd=`echo $tmpstring \| awk -F'/' '{print $2}'`

	# Format the "login_string".
	login_string="-U$user -P$passwd"
	else
	# The login_type is invalid value.
	ocf_log err "ASEHAagent: Login type specified in the file $OCF_RESKEY_login_file is not 'normal' or 'encrypted' which are only supported values."
	return 1
	fi

	# The "login_file" has been analyzed successfully. Now, the value of "login_string" contains the login/password information.
	return 0
	}

	##############################################################################################
	# Function name: ase_start #
	# Parameter: None #
	# Return value: #
	# 0 SUCCESS #
	# 1 FAIL #
	# Description: This function is used to start the ASE server in primary or secondary server. #
	##############################################################################################
	ase_start()
	{
	ocf_log debug "ASEHAagent: Start 'ase_start'"

	# Check if the server is running. If yes, return SUCCESS directly. Otherwise, continue the start work.
	ase_is_running
	if [[ $? = 0 ]]
	then
	# The server is running.
	ocf_log info "ASEHAagent: Server is running. Start is success."
	return 0
	fi

	# The server is not running. We need to start it.
	# If the log file existed, delete it.
	if [[ -f $CONSOLE_LOG ]]
	then
	rm -f $CONSOLE_LOG
	fi

	ocf_log debug "ASEHAagent: Starting '$OCF_RESKEY_server_name'..."

	# Run runserver script to start the server. Since this script will be run by root and ASE server
	# needs to be run by another user, we need to change the user to sybase_user first. Then, run
	# the script to start the server.
	su $OCF_RESKEY_sybase_user -c ksh << EOF
	# set required SYBASE environment by running SYBASE.sh.
	. $OCF_RESKEY_sybase_home/SYBASE.sh
	# Run the RUNSERVER_SCRIPT to start the server.
	. $RUNSERVER_SCRIPT > $CONSOLE_LOG 2>&1 &
	EOF

	# Monitor every 1 seconds if the server has
	# recovered, until RECOVERY_TIMEOUT.
	t=0
	while [[ $t -le $OCF_RESKEY_start_timeout ]]
	do
	grep -s "Recovery complete." $CONSOLE_LOG > /dev/null 2>&1
	if [[ $? != 0 ]]
	then
	# The server has not completed the recovery. We need to continue to monitor the recovery
	# process.
	t=`expr $t + 1`
	else
	# The server has completed the recovery.
	ocf_log info "ASEHAagent: ASE server '$OCF_RESKEY_server_name' started successfully."
	break
	fi
	sleep 1
	done

	# If $t is larger than start_timeout, it means the ASE server cannot start in given time. Otherwise, it
	# means the ASE server has started successfully.
	if [[ $t -gt $OCF_RESKEY_start_timeout ]]
	then
	# The server cannot start in specified time. We think the start is failed.
	ocf_log err "ASEHAagent: Failed to start ASE server '$OCF_RESKEY_server_name'. Please check the server error log $CONSOLE_LOG for possible problems."
	return 1
	fi

	ocf_log debug "ASEHAagent: End 'ase_start' successfully."

	return 0
	}

	#############################################################################################
	# Function name: ase_stop #
	# Parameter: None #
	# Return value: #
	# 0 SUCCESS #
	# 1 FAIL #
	# Description: This function is used to stop the ASE server in primary or secondary server. #
	#############################################################################################
	ase_stop()
	{
	ocf_log debug "ASEHAagent: Start 'ase_stop'"

	# Check if the ASE server is still running.
	ase_is_running
	if [[ $? != 0 ]]
	then
	# The ASE server is not running. We need not to shutdown it.
	ocf_log info "ASEHAagent: The dataserver $OCF_RESKEY_server_name is not running."
	return 0
	fi

	# Call get_login_string() to parse the login/password string
	get_login_string
	if [[ $? = 1 ]]
	then
	# The login account cannot be used. So we will kill the process directly.
	ocf_log info "ASEHAagent: Cannot parse the login file $OCF_RESKEY_login_file. Kill the processes of ASE directly."
	# Kill the OS processes immediately.
	kill_ase 0
	return $?
	fi

	# Just in case things are hung, start a process that will wait for the
	# timeout period, then kill any remaining porcesses. We'll need to
	# monitor this process (set -m), so we can terminate it later if it is
	# not needed.
	set -m
	$PROG kill &
	KILL_PID=$! # If successful, we will also terminate watchdog process

	# Run "shutdown with nowait" from isql command line to shutdown the server
	su $OCF_RESKEY_sybase_user -c ksh << EOF
	# set required SYBASE environment by running SYBASE.sh.
	. $OCF_RESKEY_sybase_home/SYBASE.sh
	# Run "shutdown with nowait" to shutdown the server immediately.
	(echo "use master" ; echo go ; echo "shutdown with nowait"; echo go) \| \
	\$SYBASE/\$SYBASE_OCS/bin/isql $login_string -S$OCF_RESKEY_server_name -I$OCF_RESKEY_interfaces_file &
	EOF

	sleep 5

	# Check if the server has been shut down successfully
	t=0
	while [[ $t -lt $OCF_RESKEY_shutdown_timeout ]]
	do
	# Search "ueshutdown: exiting" in the server log. If found, it means the server has been shut down.
	# Otherwise, we need to wait.
	tail $CONSOLE_LOG \| grep "ueshutdown: exiting" > /dev/null 2>&1
	if [[ $? != 0 ]]
	then
	# The shutdown is still in processing. Wait...
	sleep 2
	t=`expr $t+2`
	else
	# The shutdown is success.
	ocf_log info "ASEHAagent: ASE server '$OCF_RESKEY_server_name' shutdown with isql successfully."
	break
	fi
	done

	# If $t is larger than shutdown_timeout, it means the ASE server cannot be shut down in given time. We need
	# to wait for the background kill process to kill the OS processes directly.
	if [[ $t -ge $OCF_RESKEY_shutdown_timeout ]]
	then
	ocf_log err "ASEHAagent: Shutdown of '$OCF_RESKEY_server_name' from isql failed. Server is either down or unreachable."
	fi

	# Here, the ASE server has been shut down by isql command or killed by background process. We need to do
	# further check to make sure all processes have gone away before saying shutdown is complete. This stops the
	# other node from starting up the package before it has been stopped and the file system has been unmounted.

	# Get all processes ids from log file
	declare -a ENGINE_ALL=(`sed -n -e '/engine /s/^.os pid $[0-9]$.*online$/\1/p' $CONSOLE_LOG`)
	typeset -i num_procs=${#ENGINE_ALL[@]}

	# We cannot find any process id from log file. It may be because the log file is corrupted or be deleted.
	# In this case, we determine the shutdown is failed.
	if [[ "${ENGINE_ALL[@]}" = "" ]]
	then
	ocf_log err "ASEHAagent: Unable to find the process id from $CONSOLE_LOG."
	ocf_log err "ASEHAagent: Stop ASE server failed."
	return 1
	fi

	# Monitor the system processes to make sure all ASE related processes have gone away.
	while true
	do
	# To every engine process, search it in system processes list. If it is not in the
	# list, it means this process has gone away. Otherwise, we need to wait for it is
	# killed by background process.
	for i in ${ENGINE_ALL[@]}
	do
	ps -fu $OCF_RESKEY_sybase_user \| awk '{print $2}' \| grep $i \| grep -v grep
	if [[ $? != 0 ]]
	then
	ocf_log debug "ASEHAagent: $i process has stopped."
	c=0
	while (( c < $num_procs ))
	do
	if [[ ${ENGINE_ALL[$c]} = $i ]]
	then
	unset ENGINE_ALL[$c]
	c=$num_procs
	fi
	(( c = c + 1 ))
	done
	fi
	done

	# To here, all processes should have gone away.
	if [[ ${ENGINE_ALL[@]} = "" ]]
	then
	#
	# Looks like shutdown was successful, so kill the
	# script to kill any hung processes, which we started earlier.
	# Check to see if the script is still running. If jobs
	# returns that the script is done, then we don't need to kill
	# it.
	#
	job=$(jobs \| grep -v Done)
	if [[ ${job} != "" ]]
	then
	ocf_log debug "ASEHAagent: Killing the kill_ase script."

	kill -15 $KILL_PID > /dev/null 2>&1
	fi
	break
	fi
	sleep 5
	done

	ocf_log debug "ASEHAagent: End 'ase_stop'."

	return 0
	}

	####################################################################################
	# Function name: ase_is_running #
	# Parameter: None #
	# Return value: #
	# 0 ASE server is running #
	# 1 ASE server is not running or there are errors #
	# Description: This function is used to check if the ASE server is still running . #
	####################################################################################
	ase_is_running()
	{
	# If the error log doesn't exist, we can say there is no ASE is running.
	if [[ ! -f $CONSOLE_LOG ]]
	then
	return 1
	fi

	# The error log file exists. Check if the engine 0 is alive.
	ENGINE_0=(`sed -n -e '/engine 0/s/^.os pid $[0-9]$.*online$/\1/p' $CONSOLE_LOG`)
	if [[ "$ENGINE_0" = "" ]]
	then
	# The engine 0 is down.
	return 1
	else
	kill -s 0 $ENGINE_0 > /dev/null 2>&1
	if [[ $? != 0 ]]
	then
	# The engine 0 is not running.
	return 1
	else
	# The engine 0 is running.
	return 0
	fi
	fi

	return 1
	}

	####################################################################################
	# Function name: kill_ase #
	# Parameter: #
	# DELAY The seconds to wait before killing the ASE processes. 0 means #
	# kill the ASE processes immediately. #
	# Return value: None #
	# 1 ASE server is not running or there are errors #
	# Description: This function is used to check if the ASE server is still running . #
	####################################################################################
	kill_ase()
	{
	ocf_log debug "ASEHAagent: Start 'kill_ase'."

	DELAY=$1

	# Wait for sometime before sending a kill signal.
	t=0
	while [[ $t -lt $DELAY ]]
	do
	sleep 1
	t=`expr $t+1`
	done

	# Get the process ids from log file
	declare -a ENGINE_ALL=`sed -n -e '/engine /s/^.os pid $[0-9]$.*online$/\1/p' $CONSOLE_LOG`

	# If there is no process id found in the log file, we need not to continue.
	if [[ "${ENGINE_ALL[@]}" = "" ]]
	then
	ocf_log err "ASEHAagent: Unable to find the process id from $CONSOLE_LOG."
	return
	fi

	# Kill the datasever process(es)
	for pid in ${ENGINE_ALL[@]}
	do
	kill -9 $pid > /dev/null 2>&1
	if [[ $? != 0 ]]
	then
	ocf_log info "ASEHAagent: kill_ase function did NOT find process $pid running."
	else
	ocf_log info "ASEHAagent: kill_ase function did find process $pid running. Sent SIGTERM."
	fi
	done

	ocf_log debug "ASEHAagent: End 'kill_ase'."
	}


	#######################################################################################
	# Function name: terminate #
	# Parameter: None #
	# Return value: Always be 1 #
	# Description: This function is called automatically after this script is terminated. #
	#######################################################################################
	terminate()
	{
	ocf_log debug "ASEHAagent: This monitor script has been signaled to terminate."
	exit 1
	}

	#####################################################################################
	# Function name: ase_status #
	# Parameter: #
	# 0 Level 0 probe. In this level, we just check if engine 0 is alive #
	# 10 Level 10 probe. In this level, we need to probe if the ASE server #
	# still has response. #
	# Return value: #
	# 0 The server is still alive #
	# 1 The server is down #
	# Description: This function is used to check if the ASE server is still running. #
	#####################################################################################
	ase_status()
	{
	ocf_log debug "ASEHAagent: Start 'ase_status'."

	# Step 1: Check if the engine 0 is alive
	ase_is_running
	if [[ $? = 1 ]]
	then
	# ASE is down. Return fail to rgmanager to trigger the failover process.
	ocf_log err "ASEHAagent: ASE server is down."
	return 1
	fi

	# ASE process is still alive.
	# Step2: If this is level 10 probe, We need to check if the ASE server still has response.
	if [[ $1 -gt 0 ]]
	then
	ocf_log debug "ASEHAagent: Need to run deep probe."
	# Run deep probe
	deep_probe
	if [[ $? = 1 ]]
	then
	# Deep probe failed. This means the server has been down.
	ocf_log err "ASEHAagent: Deep probe found the ASE server is down."
	return 1
	fi
	fi

	ocf_log debug "ASEHAagent: End 'ase_status'."

	return 0
	}

	####################################################################################
	# Function name: deep_probe #
	# Parameter: None #
	# Return value: #
	# 0 ASE server is alive #
	# 1 ASE server is down #
	# Description: This function is used to run deep probe to make sure the ASE server #
	# still has response. #
	####################################################################################
	deep_probe()
	{
	declare -i rv

	ocf_log debug "ASEHAagent: Start 'deep_probe'."

	# Declare two temporary files which will be used in this probe.
	tmpfile1="$(mktemp /tmp/ASEHAagent.1.XXXXXX)"
	tmpfile2="$(mktemp /tmp/ASEHAagent.2.XXXXXX)"

	# Get the login_string by analyzing the login_file.
	get_login_string
	if [[ $? = 1 ]]
	then
	# Login string cannot be fetched. Cannot continue the deep probe.
	ocf_log err "ASEHAagent: Cannot run the deep probe because of incorrect login file $OCF_RESKEY_login_file. Deep probe failed."
	return 1
	fi

	rm -f $tmpfile1
	rm -f $tmpfile2

	# The login file is correct. We have gotten the login account and password from it.
	# Run isql command in background.
	su $OCF_RESKEY_sybase_user -c ksh << EOF
	# set required SYBASE environment by running SYBASE.sh.
	. $OCF_RESKEY_sybase_home/SYBASE.sh
	# Run a very simple SQL statement to make sure the server is still ok. The output will be put to
	# tmpfile1.
	(echo "select 1"; echo "go") \|
	\$SYBASE/\$SYBASE_OCS/bin/isql $login_string -S$OCF_RESKEY_server_name -I$OCF_RESKEY_interfaces_file -t $OCF_RESKEY_deep_probe_timeout -e -o$tmpfile1 &
	# Record the isql command process id to temporary file. If the isql is hung, we need this process id
	# to kill the hung process.
	echo \$! > $tmpfile2
	EOF

	declare -i t=0

	# Monitor the output file tmpfile1.
	while [[ $t -lt $OCF_RESKEY_deep_probe_timeout ]]
	do
	# If the SQL statement is executed successfully, we will get the following output:
	# 1> select 1
	#
	# -----------
	# 1
	#
	# (1 row affected)
	# So, we determine if the execution is success by searching the keyword "(1 row affected)".
	grep "(1 row affected)" $tmpfile1
	if [[ $? = 0 ]]
	then
	ocf_log debug "ASEHAagent: Deep probe sucess."
	break
	else
	sleep 1
	t=`expr $t+1`
	fi
	done

	# If $t is larger than deep_probe_timeout, it means the isql command line cannot finish in given time.
	# This means the deep probe failed. We need to kill the isql process manually.
	if [[ $t -ge $OCF_RESKEY_deep_probe_timeout ]]
	then
	ocf_log err "ASEHAagent: Deep probe fail. The dataserver has no response."

	# Read the process id of isql process from tmpfile2
	pid=`cat $tmpfile2 \| awk '{print $1}'`

	rm -f $tmpfile1
	rm -f $tmpfile2

	# Kill the isql process directly.
	kill -9 $pid
	return 1
	fi

	rm -f $tmpfile1
	rm -f $tmpfile2

	ocf_log debug "ASEHAagent: End 'deep_probe'."

	return 0
	}

	trap terminate SIGTERM

	#############################
	# Do some real work here... #
	#############################
	case $1 in
	start)
	verify_all \|\| exit 1
	ase_start
	exit $?
	;;
	stop)
	verify_all \|\| exit 1
	ase_stop
	exit $?
	;;
	status \| monitor)
	verify_all \|\| exit 1
	ase_status $OCF_CHECK_LEVEL
	exit $?
	;;
	kill)
	kill_ase $OCF_RESKEY_shutdown_timeout
	;;
	meta-data)
	meta_data
	exit $?
	;;
	validate-all)
	verify_all
	exit $?
	;;
	*)
	echo "Usage: $SCRIPT {start\|stop\|monitor\|status\|validate-all\|meta-data}"
	exit $OCF_ERR_UNIMPLEMENTED
	;;
	esac
	exit 0

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