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Oracle Solaris Cluster Data Services Developer's Guide Oracle Solaris Cluster 4.0 |
1. Overview of Resource Management
3. Resource Management API Reference
6. Data Service Development Library
8. Sample DSDL Resource Type Implementation
9. Oracle Solaris Cluster Agent Builder
12. Cluster Reconfiguration Notification Protocol
A. Sample Data Service Code Listings
Resource Type Registration File Listing
Monitor_stop Method Code Listing
Monitor_check Method Code Listing
B. DSDL Sample Resource Type Code Listings
C. Requirements for Non-Cluster-Aware Applications
D. Document Type Definitions for the CRNP
This method starts the PROBE program for the data service.
Example A-6 dns_monitor_start Method
#!/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 $RESOURCE_NAME.monitor. #pragma ident “@(#)dns_monitor_start 1.1 12/01/24” ############################################################################### # Parse program arguments. # function parse_args # [args ...] { typeset opt while getopts `R:G:T:' opt do case “$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