NET/MASTER RMS Management and Operations Guide

RMS Rules
Message Handlers, Timers, Rulesets, and Rules
115415 NonStop NET/MASTER RMS Management and Operations Guide 2–11
Define your own subject for a triggering message. If you define the subject, the
state (frozen or not frozen) of the new subject determines if the message triggers
the rule. If you do not define your own subject, the state of the original message
subject determines if the message triggers the rule.
Restrict the triggering message further by implementing your own message
validation exit NCL procedure.
Dynamic Rule. You can use a variable to hold the value of the primary trigger criterion
to enable the criterion to be dynamically changed. A rule that uses this feature is
known as a dynamic rule. The message handler uses the rule only when the variable
has a value. Use a dynamic rule to perform special processing on a message in
response to another message. The other message triggers a rule that sets the variable
to match the message on which you want special processing. Once the variable has a
value, the message handler starts matching messages against the rule.
Message Threshold Processing
When a message triggers a message action rule, the rule determines how to deliver the
processed message. You can deliver or suppress every message that triggers the rule,
or you can deliver or suppress only a number of the messages (message threshold
processing).
You can control the number of messages that you want to deliver or suppress within a
time interval. For example, you can deliver the first five messages that trigger the rule
within a 10-minute interval and suppress the rest.
With message threshold processing, you can decide which messages cause the rule
actions to be executed:
All messages
All messages before the threshold is reached
All messages after the threshold is reached and within the time interval
A message may have several variants; for example, the user ID in the message may
change. You can divide the messages into groups and have the message threshold
processing applied to each individual group.
Message Presentation Features in Message Action Rules
When a message triggers a message action rule, the rule determines how to present the
message if the message is to be delivered (for example, to a terminal or to the NonStop
NET/MASTER MS activity log). A message action rule provides the following
message presentation features:
Display a help panel, for example, to guide the operator on what to do when the
message arrives.
Change the message attributes (for example, color). The message (if delivered to a
terminal) appears in the OCS window with the new attributes.