Recovery of partially-completed inquiries

 

The CAM copies onto queue CSQ4SAMP.B2.WAITING.n all the messages that it receives. It sets the fields of the message descriptor like this:

• Priority is determined by the type of message:

  • For request messages, priority = 3

  • For datagrams, priority = 2

  • For reply messages, priority = 1

• CorrelId is set to the MsgId of the loan request message

• Other MQMD fields are copied from those of the received message

When an inquiry has been completed, the messages for a specific inquiry are removed from the waiting queue during answer processing. Therefore, at any time, the waiting queue contains all messages relevant to in-progress inquiries. These messages are used to recover details of in-progress inquiries if the program has to restart. The different priorities are set so that inquiry messages are recovered before propagations or reply messages.

 

Parent topic:

Credit application manager (CSQ4CVB2)

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