IBM OS manual Introducing the Transaction Affinities Utility

Page 35

The basic groups are combined because of a CICSPlex SM rule stating that a given tranid may appear only in a single transaction group. It is quite possible that a tranid may appear in more than one basic group, and so these must be combined to form larger groups that satisfy CICSPlex SM.

Chapter 2. Introducing the Transaction Affinities Utility 19

Image 35

Contents IBM Page IBM Third edition March Contents Appendix A. Details of what is detected Reporter output Scanner output Examples Vi Cics Transaction Affinities Utility Guide Vii Trademarks Preface Argument zero Cics books for Cics Transaction Server for OS/390 BibliographyCics Transaction Server for OS/390 Other Cics books CICSPlex SM books for Cics Transaction Server for OS/390Summary of changes Xiv Cics Transaction Affinities Utility Guide Affinities, see the Cics Application Programming Guide Introducing transaction affinitiesTarget region Requesting regionRouting region Transaction affinities Benets of dynamic routingWhat does dynamic routing cost? Global Inter-transaction affinityTransaction-system affinity Affinity relationsCics programming techniques for transaction affinity Affinity lifetimesAvoiding the effects of transaction affinity Safe programming techniquesUnsafe programming techniques Suspect programming techniquesProtecting applications from one another What next? Important note Introducing the Transaction Affinities UtilityAffinity utility program components Commands detected by the Transaction Affinities Utility Detector component Scanner componentDetector components What is detectedWorsening of transaction affinities relations What is not detectedHow the affinity data is collected Controlling the Detector Saving affinity data Control record Vsam le Affinity data Vsam lesReport presenting the affinity data in a readable form Detector performanceReporter component Builder componentIntroducing the Transaction Affinities Utility Cics Transaction Affinities Utility Guide Estimating the size of the MVS data space and Vsam les Preparing to use the affinity utility programCreating the Vsam les #termids Dening the Vsam les to CicsPreparing to use the affinity utility program Cics Transaction Affinities Utility Guide Creating a summary report Running the ScannerAffmod DD statement Cics Transaction Affinities Utility Creating a detailed reportContents of a detailed report Is an example of a detailed report produced by the Scanner Cics Transaction Affinities Utility Guide Changing the options Running the DetectorChanging the state CAFF01 Displaying the Detector control screenStarting the collection of affinity data When you can start collecting affinity dataResuming the collection of affinity data Pausing the collection of affinity dataWhen you can pause affinity data collection When you can resume collecting affinity dataStopping the collection of affinity data When you can stop collecting affinity dataCAFF02 Changing the Detector options„1… The control options Perform periodic saves Restore data on start„2… Detect affinity types „4… Last update by useridSize of dataspace Transid prexDetector errors Cics Transaction Affinities Utility Guide Caucntl DD statements Running the ReporterRequesting a report from the Reporter CAUAFF1, CAUAFF2, and CAUAFF3 DD statementsTrangrps DD statement Output from the ReporterCmdgrps DD statement System Affinity reportTrangroup „1… Incorrect affinity types„2… Affinity types reported „3… Affinities reportsLifetime RecoverableCommand AffinityTotal Transactions Producing affinity transaction group denitionsTerminal BTS TaskAfflifesystem Descaddress CWA Using the affinity reportRemove affinity relation worsening Understanding the affinitiesModifying affinity transaction groups Remove false affinitiesCompressing affinity data Shared storage Using the IBM Cross System ProductSPI commands ENQUEUEs/DEQUEUEsENQUEUE/DEQUEUE Detailed affinity analysisGetmain Shared SPI commands Cics Transaction Affinities Utility Guide CONTEXT=plexname Running the BuilderDSPSIZE=16number Affgrps DD statement Syntax for input to the BuilderRepgrps DD statement Builder input syntax Combined affinity transaction group denitions Header statementsOutput from the Builder Combining basic affinity transaction groups Relation a Relation B Resultant relation C Group merge report Data sets processed reportEmpty transaction groups report Sample group merge report Error reportSample error report Cics Transaction Affinities Utility Guide ENQ/DEQ Appendix A. Details of what is detectedLoad HOLD/RELEASE TS commandsAddress CWA CANCEL/DELAY/POST/START Wait commands SPI commandsCics Transaction Affinities Utility Guide Examples Reporter outputScanner output Example 2±VS Cobol Which occurs for the rst Move Move Unrecognized Transids Logon or System when Pconv expectedCobol affinities Cics Transaction Affinities Utility Guide Function code values Appendix D. DiagnosticsDetector table manager diagnostics Table identier values Reason code values This section Detector Cafb request queue manager diagnosticsDate formatter diagnostics Reason code valuesIndex Bappl Vsam Cics Transaction Affinities Utility Guide Sending your comments to IBM Ibmr IBM