MONITOR_CHECK Method Code Listing

#!/bin/ksh
#
# Monitor check  Method for DNS.
#
# The RGM calls this method whenever the fault monitor fails the
data service
# over to a new node. Monitor_check calls the VALIDATE method to
verifiy
# that the configuration directory and files are available on the
new node.


#pragma ident	"@(#)dns_monitor_check 1.1	00/05/24 SMI"

###############################################################################
# Parse program arguments.
#
function parse_args # [args ...]
{
	typeset opt

	while getopts `R:G:T:' opt
	do
		case "$opt" in

		R)
		# Name of the DNS resource.
		RESOURCE_NAME=$OPTARG
		;;

		G)
		# Name of the resource group in which the resource is
		# configured.
		RESOURCEGROUP_NAME=$OPTARG
		;;

		T)
		# Name of the resource type.
		RESOURCETYPE_NAME=$OPTARG
		;;

		*)
		logger -p ${SYSLOG_FACILITY}.err \
		-t [$RESOURCETYPE_NAME,$RESOURCEGROUP_NAME,$RESOURCE_NAME]
\
		"ERROR: Option $OPTARG unknown"
		exit 1
		;;

		esac
	done

}

###############################################################################
# MAIN
##############################################################################

export PATH=/bin:/usr/bin:/usr/cluster/bin:/usr/sbin:/usr/proc/bin:$PATH

# Obtain the syslog facility to use to log messages.
SYSLOG_FACILITY=`scha_cluster_get -O SYSLOG_FACILITY`

# Parse the arguments that have been passed to this method.
parse_args "$@"

PMF_TAG=$RESOURCE_NAME.named
SYSLOG_TAG=$RESOURCETYPE_NAME,$RESOURCEGROUP_NAME,$RESOURCE_NAME

# Obtain the full path for the VALIDATE method from
# the RT_BASEDIR property of the resource type.
RT_BASEDIR=`scha_resource_get -O RT_BASEDIR -R $RESOURCE_NAME
\
	-G $RESOURCEGROUP_NAME`

# Obtain the name of the VALIDATE method for this resource.
VALIDATE_METHOD=`scha_resource_get -O VALIDATE \
	-R $RESOURCE_NAME -G $RESOURCEGROUP_NAME`

# Obtain the value of the Confdir property in order to start the
# data service. Use the resource name and the resource group entered
to
# obtain the Confdir value set at the time of adding the resource.
config_info=`scha_resource_get -O Extension -R $RESOURCE_NAME
-G $RESOURCEGROUP_NAME Confdir`

# scha_resource_get returns the type as well as the value for extension
# properties. Use awk to get only the value of the extension property.
CONFIG_DIR=`echo $config_info | awk `{print $2}'`

# Call the validate method so that the dataservice can be failed
over 
# successfully to the new node.
$RT_BASEDIR/$VALIDATE_METHOD -R $RESOURCE_NAME -G $RESOURCEGROUP_NAME
\
	-T $RESOURCETYPE_NAME -x Confdir=$CONFIG_DIR

# Log a message indicating that monitor check was successful.
if [ $? -eq 0 ]; then
	logger -p ${SYSLOG_FACILITY}.info -t [$SYSLOG_TAG] \
		"${ARGV0} Monitor check for DNS successful."
	exit 0
else
	logger -p ${SYSLOG_FACILITY}.err -t [$SYSLOG_TAG] \
		"${ARGV0} Monitor check for DNS not successful."
	exit 1
fi