082D in TPX after an appl(Natural) condition, and CICS hangs.

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Article ID: 222609

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Updated On:

Products

CA TPX - Session Management

Issue/Introduction

 

When having a CICS session that uses a Natural database, everything would work smoothly except when the user tries to do a search for entries.

Application then tries to show the search results in real time, trying to update the search progress on the screen - almost like a progress bar.

This causes a Natural abend within CICS.

Cause

Natural sends tons of screens without any break causing TPX to run into overrun condition and issuing the 082D and the following Natural abend within CICS:

DFHZC3413 E 03/08/2021 12:12:59 CICSTEST 5001 N827 Logical Unit busy.  SENSE CODE 082D 0000 ((1) Module name: DFHZNAC)

DFHZC3408 E 03/08/2021 12:12:59 CICSTEST 5001 N827 Presentation space integrity lost.  SENSE CODE 082B 0000 ((1) Module name:

And user gets this error on the screen:   

“NT08 - Terminal write error: FC=0404,  RSP=81, RSP2=  0,  TERMERR”

Environment

Release : 5.4

Component : CA-TPX for Z/OS

Resolution

This is not a TPX issue.

The recommendation is to contact Natural vendor (SAG), and explain the issue. They are aware of the problem and have created a test fix in the past.