Mainframe 2018 August Release Notes

Monthly PTF's have been made available for Dynatrace AppMon 7.1 2018 August mainframe components thru the cumulative monthly maintenance. Recommended for all users!

To download the cumulative PTF’s, JCL exists in the sample library created during the initial install (hilevel.LZDT71.SZDTSAMP). FTPMAINT and RFNMAINT facilitate downloads from a Dynatrace FTP server with RFNMAINT taking advantage of Receive from Network technology. Additional information can also be found at Download and SMP/E install of the z/OS Agent Components. If using RFNMAINT, please update your JCL with the hash contained in the RFNINSTL job in the aforementioned link.

Resolved and known issues

Date PTF What's Impacted Description
2018 March DTQ001A zDC JLT-211733 ZDC ECSA storage leak, restarts allocation another AgtAst
  • Impact: Low, only occurs when ZDC is started.
  • Cause: An internal workarea should have been re-used. A new one was allocated.
  • Solution: Added code to handle condition.
2018 April DTQ002A IMS Agent ONE-13460 DISABLED IMS AGENTS ARE NOT REMOVED FROM THE AGENT OVERVIEW
  • Impact: Low, Makes things hard to find which agent is disabled.
  • Cause: Multiple DPL requests being processed by a persistent mirror task.
  • Solution: Updated code to remove Agent like as documented.
2018 April DTQ003A IMS Agent ONE-13463 IMS AGENT REPORTING GARBAGE FOR THE TERMINAL NAME
  • Impact: Low, Makes things hard to read.
  • Cause: IMS agent was not obtaining the correct terminal name for non-OTMA APPC messages.
  • Solution: Updated code to check for non-OTMA APPC.
2018 April DTQ004A IMS Agent JLT-214179 MPR ABEND U4036 DUE TO S0C1 ON DB2 CALL AFTER MPR RESTART
  • Impact: Med, Can cause a recycle of the CNTL region if not applied correctly.
  • Cause: IMS agent was not obtaining the correct terminal name for non-OTMA APPC messages.
  • Solution: Updated code and Hold Doc to be implemented
2018 April DTQ005A ZDC JLT-215832 MESSAGE ZDCI025E AFTER S0C4-38 IN ZDCPCRT4 TXB FLUSH
  • Impact: Med, Can cause abend and messages.
  • Cause: Race condition resulted in 2 processes using the same Transaction Buffer.
  • Solution: Updated code to avoid this situation.
2018 April DTQ006A ZDC JLT-14337 IMS AGENT CAPTURES INVALID TERMINAL NAME
  • Impact: Low, Can be confusing to read.
  • Cause: Invalid Terminal name for Trigger Monitor started Transactions that issue a program switch.
  • Solution: Updated code to make name blanks.
2018 June DTQ007A ZDC JLT-217622 ZDC ABEND S0C4-3B ZDCINIT AT STARTUP FORMATTING TXBS
  • Impact: Medium, occurs infrequently and requires zDC restart.
  • Cause: If the ZDC shared memory object(SMO) is in the high half of a 4GB area, a S0C4-#B can result when transaction buffers are formatted.
  • Solution: Code changed to use correct address.
2018 August ZDQ009A CICS JLT-219851 CICS – Incorrect ZDTC006I Messages after DPL to more than 10 regions
  • Impact: Med, ZDTC006I excessive console messages
  • Cause: Storage area too small
  • Solution: Added code to handle condition.

Other known issues

Date Description
July 2018 Compuware Xpediter abends when using Dynatrace. Apply the following corrective service available from Compuware.

Corrective Service PA01920
Abstract:
Abend 0C4 may occur when debugging PL/I program.

Problem Description:
LA01050 - The 0C4 may occur when debugging an Enterprise PL/I program which runs under a user-defined mirror transaction. The 0C4 is at offset x164 of program BLDCALL(mod DBUGDPEX), the failing instruction is "9102 4000" and R4 contains an invalid DSA back chain address.

This PTF corrects the problem.