Chapter 5. DQM implementation

This chapter describes the implementation of the concepts introduced in Chapter 2, Making your applications communicate.

Distributed queue management (DQM):

• Enables you to define and control communication channels between queue managers
• Provides you with a message channel service to move messages from a type of local queue, known as a transmission queue, to communication links on a local system, and from communication links to local queues at a destination queue manager
• Provides you with facilities for monitoring the operation of channels and diagnosing problems, using panels, commands, and programs

This chapter discusses:

• Functions of DQM
• Message sending and receiving
• Channel control function
• What happens when a message cannot be delivered?
• Initialization and configuration files
• Data conversion
• Writing your own message channel agents