Chapter 2. Introducing the Transaction Affinities Utility

 

This chapter gives an overview of the Transaction Affinities Utility, and describes the

 

basic components:

 

v ªCommands detected by the Transaction Affinities Utilityº on page 11

 

v ªThe Scanner componentº on page 12

 

v ªThe Detector componentº on page 12

 

v ªThe Reporter componentº on page 18

 

v ªThe Builder componentº on page 18

The Transaction Affinities Utility is designed to detect potential causes of

inter-transaction affinity and transaction-system affinity for those users planning to

use the CICS dynamic routing facility. It can be used to detect programs using

EXEC CICS commands that may cause transaction affinity. It can also be used to

create a ®le containing combined affinity transaction group de®nitions, suitable for

input to the CICS system management product, the CICSPlex SM element of CICS

Transaction Server for OS/390 Release 3.

 

The commands that can be detected are listed in ªCommands detected by the

 

Transaction Affinities Utilityº on page 11. The Transaction Affinities Utility is also of

 

value for those users planning to use either asynchronous processing by CICS

 

function shipping, or the transaction isolation facility.

 

The Transaction Affinities Utility determines the affinities that apply to a single CICS

region: that is, a single pure target region or single combined routing region/target

region. It can be run against production CICS regions, and is also useful in a test

 

environment, to detect possible affinities introduced by new or changed application

 

suites or packages.

 

 

 

Important note

 

 

 

 

 

 

 

 

The Transaction Affinities Utility is only an aid to help you ®nd any affinities in

 

 

 

your applications. Relate the output from the Transaction Affinities Utility to the

 

 

 

applications that contain affinities before deciding whether or not the

 

 

 

applications are suitable for CICS dynamic routing.

 

 

 

To ensure that you detect as many potential affinities as possible, use the

 

 

 

Transaction Affinities Utility against all parts of your workload, including

 

 

 

rarely-used transactions and abnormal situations.

 

 

 

 

 

© Copyright IBM Corp. 1994, 1999

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IBM OS manual Introducing the Transaction Affinities Utility, Important note
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OS specifications

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