Obtaining Property Values

This program needs the values of the following properties:

• Thorough_probe_interval – To set the period during which the probe sleeps

• Probe_timeout – to enforce the time-out value of the probe on the nslookup command that does the probing

• Network_resources_used – To obtain the IP address on which DNS is running

• Retry_count and Retry_interval – To determine the number of restart attempts and the period over which to count them

• Rt_basedir – To obtain the directory containing the PROBE program and the gettime utility

The scha_resource_get command obtains the values of these properties and stores them in shell variables, as follows.

PROBE_INTERVAL=`scha_resource_get -O THOROUGH_PROBE_INTERVAL \
-R $RESOURCE_NAME -G $RESOURCEGROUP_NAME`

probe_timeout_info=`scha_resource_get -O Extension -R $RESOURCE_NAME
\
-G $RESOURCEGROUP_NAME Probe_timeout` 
PROBE_TIMEOUT=`echo $probe_timeout_info | awk '{print $2}'`

DNS_HOST=`scha_resource_get -O NETWORK_RESOURCES_USED -R $RESOURCE_NAME
\
-G $RESOURCEGROUP_NAME`

RETRY_COUNT=`scha_resource_get -O RETRY_COUNT -R $RESOURCE_NAME
-G\
 $RESOURCEGROUP_NAME`

RETRY_INTERVAL=`scha_resource_get -O RETRY_INTERVAL -R $RESOURCE_NAME
-G\
 $RESOURCEGROUP_NAME`

RT_BASEDIR=`scha_resource_get -O RT_BASEDIR -R $RESOURCE_NAME -G\
 $RESOURCEGROUP_NAME`

For system-defined properties, such as Thorough_probe_interval, scha_resource_get returns the value only. For extension properties, such as Probe_timeout, scha_resource_get returns the type and value. Use the awk(1) command to obtain the value only.