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viii CICS Transaction Affinities Utility Guide

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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 Transaction Server for OS/390 BibliographyCics books for Cics Transaction Server for OS/390 CICSPlex SM books for Cics Transaction Server for OS/390 Other Cics booksSummary of changes Xiv Cics Transaction Affinities Utility Guide Introducing transaction affinities Affinities, see the Cics Application Programming GuideRouting region Requesting regionTarget region What does dynamic routing cost? Benets of dynamic routingTransaction affinities Affinity relations Inter-transaction affinityTransaction-system affinity GlobalAffinity lifetimes Cics programming techniques for transaction affinitySuspect programming techniques Safe programming techniquesUnsafe programming techniques Avoiding the effects of transaction affinityProtecting applications from one another What next? Introducing the Transaction Affinities Utility Important noteAffinity utility program components Commands detected by the Transaction Affinities Utility Scanner component Detector componentWhat is detected Detector componentsWhat is not detected Worsening of transaction affinities relationsControlling the Detector How the affinity data is collectedSaving affinity data Affinity data Vsam les Control record Vsam leBuilder component Detector performanceReporter component Report presenting the affinity data in a readable formIntroducing the Transaction Affinities Utility Cics Transaction Affinities Utility Guide Creating the Vsam les Preparing to use the affinity utility programEstimating the size of the MVS data space and Vsam les Dening the Vsam les to Cics #termidsPreparing to use the affinity utility program Cics Transaction Affinities Utility Guide Running the Scanner Creating a summary reportAffmod DD statement Creating a detailed report Cics Transaction Affinities UtilityContents of a detailed report Is an example of a detailed report produced by the Scanner Cics Transaction Affinities Utility Guide Changing the state Running the DetectorChanging the options Displaying the Detector control screen CAFF01When you can start collecting affinity data Starting the collection of affinity dataWhen you can resume collecting affinity data Pausing the collection of affinity dataWhen you can pause affinity data collection Resuming the collection of affinity dataWhen you can stop collecting affinity data Stopping the collection of affinity dataChanging the Detector options CAFF02Restore data on start „1… The control options Perform periodic savesTransid prex „4… Last update by useridSize of dataspace „2… Detect affinity typesDetector errors Cics Transaction Affinities Utility Guide CAUAFF1, CAUAFF2, and CAUAFF3 DD statements Running the ReporterRequesting a report from the Reporter Caucntl DD statementsCmdgrps DD statement Output from the ReporterTrangrps DD statement Affinity report System„3… Affinities reports „1… Incorrect affinity types„2… Affinity types reported TrangroupAffinity RecoverableCommand LifetimeBTS Task Producing affinity transaction group denitionsTerminal Total TransactionsUsing the affinity report Afflifesystem Descaddress CWARemove false affinities Understanding the affinitiesModifying affinity transaction groups Remove affinity relation worseningCompressing affinity data ENQUEUEs/DEQUEUEs Using the IBM Cross System ProductSPI commands Shared storageDetailed affinity analysis ENQUEUE/DEQUEUEGetmain Shared SPI commands Cics Transaction Affinities Utility Guide DSPSIZE=16number Running the BuilderCONTEXT=plexname Repgrps DD statement Syntax for input to the BuilderAffgrps DD statement Builder input syntax Output from the Builder Header statementsCombined affinity transaction group denitions Combining basic affinity transaction groups Relation a Relation B Resultant relation C Empty transaction groups report Data sets processed reportGroup merge report Error report Sample group merge reportSample error report Cics Transaction Affinities Utility Guide Appendix A. Details of what is detected ENQ/DEQTS commands Load HOLD/RELEASEAddress CWA CANCEL/DELAY/POST/START SPI commands Wait commandsCics Transaction Affinities Utility Guide Scanner output Reporter outputExamples Example 2±VS Cobol Which occurs for the rst Move Move Cobol affinities Logon or System when Pconv expectedUnrecognized Transids Cics Transaction Affinities Utility Guide Detector table manager diagnostics Appendix D. DiagnosticsFunction code values Table identier values Reason code values Reason code values Detector Cafb request queue manager diagnosticsDate formatter diagnostics This sectionIndex Bappl Vsam Cics Transaction Affinities Utility Guide Sending your comments to IBM Ibmr IBM