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Draft Redbooks - IBM CICS Performance Series: CICS TS for z/OS V5 Performance Report

This IBM® Redbooks® publication gives a broad understanding of several important concepts used when discussing IBM CICS® Transaction Server for IBM z/OS® (CICS TS) performance. This publication also describes in detail many of the significant performance improvements that can be realized by upgrading your environment to the most recent release of CICS TS. The target audience for this IBM Redbooks publication is as follows: Systems Architects wanting to understand the performance characteristics ...

PI56041: DFHKE0002 A SEVERE ERROR (CODE X'0504') HAS OCCURRED IN MODULE DFHKEDS.

A CICS region processing JAVA/DB2 workload was suffering severe problems which lead to message DFHKE0002 A severe error (code

PI55942: JAVA.LANG.CLASSNOTFOUNDEXCEPTION: ORG.XML.SAX.INPUTSOURCE

After applying PTF UI34224 error java.lang.ClassNotFoundException: org.xml.sax.InputSource

PI55971: S0C4 ASRA IN CPSM LONG RUNNING TASK CONL CONA, METHOD EYU0BCGQ BCGQ

Your CICS Managed Address Space (MAS) experiences an abend and produces an SVC dump. In the job output, you see messages

PI55993: CPSM MESSAGE TO EXTERNALIZE XDATLOST "NO BUCKETS" CONDITION

CPSM uses message buckets to communicate certain information between regions (CMAS-to-CMAS or CMAS-to-MAS.) If CPSM goes to

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