Metrics Information Reference

This chapter describes the metrics information that a Message Queue broker can provide for monitoring, tuning, and diagnostic purposes. This information can be made available in a variety of ways:

• In a log file (see Sending Metrics Data to Log Files)

• Interactively with the Command utility’s imqcmd metrics subcommand (see Using the Command Utility)

• In metrics messages sent to a metrics topic destination (see Using the Message-Based Monitoring API )

• Through JMX MBeans that can be accessed programmatically by Java applications using the JMX Administration API.

The tables in this chapter list the kinds of metrics information available and the forms in which it can be provided. For metrics provided through the Command utility’s imqcmd metrics subcommand, the tables list the metric type with which they can be requested; for those provided in metrics messages, the tables list the metrics topic destination to which they are delivered. All the metrics information in this chapter can be accessed progamatically using the JMX Administration API as described in the Message Queue Developer’s Guide for JMX Clients

The chapter consists of the following sections:

• JVM Metrics

• Brokerwide Metrics

• Connection Service Metrics

• Physical Destination Metrics