Queue manager QM1 example for IBM® i
The following object definitions allow applications connected to queue manager QM1 to send request messages to a queue called PAYROLL on QM2, and to receive replies on a queue called PAYROLL.REPLY on QM1.
All the object definitions have been provided with the TEXT attributes. The other attributes supplied are the minimum required to make the example work. The attributes that are not supplied take the default values for queue manager QM1.
Run the following commands on queue manager QM1:
- Remote queue definition
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The CRTMQMQ command with the following attributes:
Note: The remote queue definition is not a physical queue, but a means of directing messages to the transmission queue, QM2, so that they can be sent to queue manager QM2.QNAME 'PAYROLL.QUERY' QTYPE *RMT TEXT 'Remote queue for QM2' PUTENBL *YES TMQNAME 'QM2' (default = remote queue manager name) RMTQNAME 'PAYROLL' RMTMQMNAME 'QM2' - Transmission queue definition
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The CRTMQMQ command with the following attributes:
QNAME QM2 QTYPE *LCL TEXT 'Transmission queue to QM2' USAGE *TMQ PUTENBL *YES GETENBL *YES TRGENBL *YES TRGTYPE *FIRST INITQNAME SYSTEM.CHANNEL.INITQ TRIGDATA QM1.TO.QM2 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 named process.
- Sender channel definition
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The CRTMQMCHL command with the following attributes:
CHLNAME QM1.TO.QM2 CHLTYPE *SDR TRPTYPE *TCP TEXT 'Sender channel to QM2' TMQNAME QM2 CONNAME '192.0.2.1(1412)' - Receiver channel definition
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The CRTMQMCHL command with the following attributes:
CHLNAME QM2.TO.QM1 CHLTYPE *RCVR TRPTYPE *TCP TEXT 'Receiver channel from QM2' - Reply-to queue definition
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The CRTMQMQ command with the following attributes:
QNAME PAYROLL.REPLY QTYPE *LCL TEXT 'Reply queue for replies to query messages sent to QM2' PUTENBL *YES GETENBL *YES The reply-to queue is defined as PUT(ENABLED). This definition ensures that reply messages can be put to the queue. If the replies cannot be put to the reply-to queue, they are sent to the dead-letter queue on QM1 or, if this queue is not available, remain on transmission queue QM1 on queue manager QM2. The queue has been defined as GET(ENABLED) to allow the reply messages to be retrieved.