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Open Message Interface Policies

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Message interface policies get messages either from opcmsg command of API. Because messages are generally intercepted at managed nodes, network traffic to the management server is reduced. By distributing message source information from the management server to specific managed nodes, you have only the necessary configuration on each node.

Scripts that implement this type of policies can be augmented with additional files via HPOM Instrumentation Categories

With the HPOM message interface command opcmsg and application programming interface (API) opcmsg you can enable existing applications to send messages directly to HPOM.

Structure of the open message interface policy

Essentially this type of policy is a complex multilevel pattern matching rule with some subject area specific twists. The resulting policy is an XML file that can be copied and studies separately.

Policy is usually specified via GUI that has screen with four menu items at the top:

  1. Properties,
  2. Message Defaults,
  3. Conditions,
  4. Options.

The most important part is in Conditions submenu (See Conditions) Here you need to specify one or more conditions that select appropriate messages from the message stream for processing. Each condition consists of three major parts

  1. First each message is processed against message matching template. Each incoming message will be tried to match against this template.
  2. If matching is successful then parts of the Condition are triggered.

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Last modified: March 12, 2019