#!/bin/ksh
#
# Monitor start Method for HA-DNS.
#
# This method starts the monitor (probe) for the data service under
the 
# control of PMF. The monitor is a process that probes the data
service
# at periodic intervals and if there is a problem restarts it on
the same node
# or fails it over to another node in the cluster. The PMF tag for
the
# monitor is $RESOURCE_NAME.monitor.


#pragma ident   "@(#)dns_monitor_start   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=$RESOURCE_NAME.monitor
SYSLOG_TAG=$RESOURCETYPE_NAME,$RESOURCEGROUP_NAME,$RESOURCE_NAME

# Find where the probe method resides by obtaining the value of
the 
# RT_BASEDIR property of the data service.
RT_BASEDIR=`scha_resource_get -O RT_BASEDIR -R $RESOURCE_NAME
-G \$RESOURCEGROUP_NAMÈ

# Start the probe for the data service under PMF. Use the infinite
retries 
# option to start the probe. Pass the resource name, group, and
type to the 
# probe method. 
pmfadm -c $PMF_TAG.monitor -n -1 -t -1 \
    $RT_BASEDIR/dns_probe -R $RESOURCE_NAME -G $RESOURCEGROUP_NAME
\
    -T $RESOURCETYPE_NAME

# Log a message indicating that the monitor for HA-DNS has been
started.
if [ $? -eq 0 ]; then
   logger -p ${SYSLOG_FACILITY}.info -t [$SYSLOG_TAG] \
           "${ARGV0} Monitor for HA-DNS successfully started"
fi
exit 0
 

#!/bin/ksh
#
# Monitor stop method for HA-DNS
#
# Stops the monitor that is running using PMF.


#pragma ident   "@(#)dns_monitor_stop   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=$RESOURCE_NAME.monitor
SYSLOG_TAG=$RESOURCETYPE_NAME,$RESOURCEGROUP_NAME,$RESOURCE_NAME

# See if the monitor is running, and if so, kill it. 
if pmfadm -q $PMF_TAG.monitor; then 
   pmfadm -s $PMF_TAG.monitor KILL
   if [ $? -ne 0 ]; then 
      logger -p ${SYSLOG_FACILITY}.err -t [$SYSLOG_TAG] \
          "${ARGV0} Could not stop monitor for resource " \
          $RESOURCE_NAME
           exit 1
   else
      # Could successfully stop the monitor. Log a message.
      logger -p ${SYSLOG_FACILITY}.info -t [$SYSLOG_TAG]\
          "${ARGV0} Monitor for resource " $RESOURCE_NAME
\
          " successfully stopped"
   fi
fi

exit 0