Design of the trigger server

The design of the trigger server is similar to that of the trigger monitor, with a few exceptions.

The differences between the trigger server and the trigger monitor are that the trigger server:

Allows MQAT_CICS as well as MQAT_OS400 applications.
Calls IBM® i applications in its own job (or uses STRCICSUSR to start CICS® applications) rather than submitting an IBM i job.
For CICS applications, substitutes the EnvData, for example, to specify the CICS region, from the trigger message in the STRCICSUSR command.
Opens the initiation queue for shared input, so that many trigger servers can run at the same time.

Note: Programs started by AMQSERV4 must not use the MQDISC call because this stops the trigger server. If programs started by AMQSERV4 use the MQCONN call, they get the MQRC_ALREADY_CONNECTED reason code.