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Prod parallel execution on mainframe CICS


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mandrake_84

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Joined: 05 May 2021
Posts: 1
Location: United States

PostPosted: Wed May 05, 2021 11:45 pm
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Hello all,
I am new to CICS but here's what I want to know.

In the past, for a reengineering project, I have done something called production parallel monitoring on few servers before going live with the new flow/program. The application I worked with used to get XML requests from front end applications and so it was easy to route the XML to production API and also to the parallel API. The parallel API does the processing and updates a different database than the actual production API. So we were able to compare the results. The front end applications will receive the response only from the production API and not from the parallel API.

Now, I want to know how to achieve the same with 3270 screens. As I understand BMS creates what are known as symbolic maps (copybooks) that are used by COBOL program for processing. I want to know how this information can be sent simultaneously to a parallel system that's not running on mainframes.
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Robert Sample

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Joined: 06 Jun 2008
Posts: 8574
Location: Dubuque, Iowa, USA

PostPosted: Wed May 12, 2021 7:57 pm
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Modify the COBOL program(s) receiving the maps to send the map data to the remote system after the map is received. For what you want to do, the copy book is useless -- it is a static representation of what data is available on the map but does not provide the data on the CICS screen.
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