This section describes the procedure for using the message-based monitoring capability to gather metrics information. The procedure includes both client development and administration tasks.
Write a metrics monitoring client.
See the Message Queue Developer’s Guide for Java Clients for instructions on programming clients that subscribe to metrics topic destinations, consume metrics messages, and extract the metrics data from these messages.
Configure the broker’s Metrics Message Producer by setting broker property values in the config.properties file:
Enable metrics message production.
The default value is true.
Set the interval (in seconds) at which metrics messages are generated.
Set imq.metrics.topic.interval=interval .
The default is 60 seconds.
Specify whether you want metrics messages to be persistent (that is, whether they will survive a broker failure).
Set imq.metrics.topic.persist .
The default is false.
Specify how long you want metrics messages to remain in their respective destinations before being deleted.
Set imq.metrics.topic.timetolive .
The default value is 300 seconds.
Set any access control you desire on metrics topic destinations.
See the discussion in Security and Access Considerations below.
Start up your metrics monitoring client.
When consumers subscribe to a metrics topic, the metrics topic destination will automatically be created. Once a metrics topic has been created, the broker’s metrics message producer will begin sending metrics messages to the metrics topic.