PM52374: SETTING TRACE LEVEL 19 IN WLM CAUSES DYNAMIC ROUTING FAILURES

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Switching on Trace level 19 in WLM cause dynamic routing
  failures.  There's a level 19 trace issued in WNAL immediately
  prior to method termination.  It looks like it is causing
  WNAL_RESPONSE to be changed from OK, causing the program to
  think there has been an error so it quits with a method_failed
  response.  This gets percolated all the way back up the chain to
  CICS who (in the case of DPLs) raises a PGMIDERR response to my
  DPL.
  

Local fix

• Do not set WLMTRACE(19).
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICSPlex SM V4R2M0 Users                 *
  ****************************************************************
  * PROBLEM DESCRIPTION:    You activate WLM trace level 19 in   *
  *                      a routing region which is part of a     *
  *                      workload managed by CPSM.  You submit   *
  *                      a transaction or dynamic DPL which is   *
  *                      mapped to an active TRANGRP.  Your      *
  *                      routing fails and message:              *
  *                      .                                       *
  *                         EYUWR0104E - CPSM Reports an         *
  *                                 unexpected Error on          *
  *                                 FUNCTION SM_SCOPE            *
  *                      .                                       *
  *                      is returned for a transaction route.  A *
  *                      dynamic DPL receives RESP(PGMIDERR).    *
  ****************************************************************
  * RECOMMENDATION: After applying the PTF that resolves this    *
  *                 APAR, all MASes which function as routing    *
  *                 regions in a workload managed by CPSM must   *
  *                 be recycled to pick up the updated code.     *
  *                 This includes any target regions which take  *
  *                 part in a distributed workload, or which     *
  *                 might request dynamic DPLs.  Note that all   *
  *                 MASes do not have to be restarted at the     *
  *                 same time.                                   *
  ****************************************************************
     A logic error in module EYU0WNAL (WNAL - WLM Process Algo-
  rithm) caused a RESPONSE=EXCEPTION and REASON=METHOD_FAILED to
  be returned after writing the trace entry for WLM Trace Level
  19.
  

Problem conclusion

• Module EYU0WNAL was updated to correct the logic error.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UK74336

Modules/Macros

• CJA0WNAL CJB0WNAL CJC0WNAL EYU0WNAL
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R70M PSY UK74336

     UP11/12/02 P F112

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.