PDT User abend code 120

Products

• Subsystem Analyzer for DB2 for z/OS
• Database Management for DB2 for z/OS - Performance Suite
• Database Management for DB2 for z/OS - SQL Performance Suite
• Detector for DB2 for z/OS
• Insight Performance Monitor for DB2 UDB for z/OS

Issue/Introduction

After upgrading from R19 to R20, verification went fine. Then after one of the 2 way datasharing DB2's was recycled, the Detector collector stops then issues an abend with user completion code 120. Recycling the xmanager and issuing a stop/start for collector but it still fails. 

Environment

Release : 20.0

Component : CA Detector for DB2 for z/OS

Resolution

Change COMPAT from NO to YES. Check your CDBAPARM(PDT) and you'll see the following explanation:

COMPAT (N) /* Start Detector collections using an */
/* alternate collection method that will allow */
/* Detector to run with other vendor's DB2 */
/* monitoring products. */
/* COMPAT (Y) should only be selected if */
/* Detector has attempted to start a */
/* collection and abended with a U120, or if */
/* known conflicts exist between Detector */
/* and other vendor's products. */
/* Y - Yes, start Detector collections in */
/* third-party compatibility mode. */
/* N - No, do not start Detector collections */
/* in third-party compatibility mode. */
/* display.