Queue manager QM2 example for IBM i

The following object definitions allow applications connected to queue manager QM2 to retrieve request messages from a local queue called PAYROLL, and to put replies to these request messages to a queue called PAYROLL.REPLY on queue manager QM1.

You do not need to provide a remote queue definition to enable the replies to be returned to QM1. The message descriptor of the message retrieved from local queue PAYROLL contains both the reply-to queue and the reply-to queue manager names. Therefore, as long as QM2 can resolve the reply-to queue manager name to that of a transmission queue on queue manager QM2, the reply message can be sent. In this example, the reply-to queue manager name is QM1 and so queue manager QM2 requires a transmission queue of the same name.

All the object definitions have been provided with the TEXT attribute and are the minimum required to make the example work. The attributes that are not supplied take the default values for queue manager QM2.

Run the following commands on queue manager QM2:

Local queue definition

The CRTMQMQ command with the following attributes:

QNAME	PAYROLL
QTYPE	*LCL
TEXT	'Local queue for QM1 payroll details'
PUTENBL	*YES
GETENBL	*YES

This queue is defined as PUT(ENABLED) and GET(ENABLED) for the same reason as the reply-to queue definition on queue manager QM1.

Transmission queue definition

The CRTMQMQ command with the following attributes:

QNAME	QM1
QTYPE	*LCL
TEXT	'Transmission queue to QM1'
USAGE	*TMQ
PUTENBL	*YES
GETENBL	*YES
TRGENBL	*YES
TRGTYPE	*FIRST
INITQNAME	SYSTEM.CHANNEL.INITQ
TRIGDATA	QM2.TO.QM1

When the first message is put on this transmission queue, a trigger message is sent to the initiation queue, SYSTEM.CHANNEL.INITQ. The channel initiator gets the message from the initiation queue and starts the channel identified in the trigger data.

Sender channel definition

The CRTMQMCHL command with the following attributes:

CHLNAME	QM2.TO.QM1
CHLTYPE	*SDR
TRPTYPE	*TCP
TEXT	'Sender channel to QM1'
TMQNAME	QM1
CONNAME	'192.0.2.0(1411)'

Receiver channel definition

The CRTMQMCHL command with the following attributes:

CHLNAME	QM1.TO.QM2
CHLTYPE	*RCVR
TRPTYPE	*TCP
TEXT	'Receiver channel from QM1'

Parent topic: What the example for IBM i shows