PI17662: CPSM CMAS AND MAS AUX TRACE FLOODED WITH ENTRIES FROM WDIN CICSINIT 9 AND WDTR WDININIT 6

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You start your MASes and find the AUX trace datasets in MAS and
  the connected CMASes immediately fill up. Upon formatting them
  using the CPSM trace formatter EYU9XZUT, you find the following
  two entries repeated over and over for routed transactions:
  .
  TASK  MTD  PREV TRAN OBJ LEVL PT-ID   DEBUG   UOW  CMAS/USR ENVR
  12345 WDIN WDTR ABCD WLM EXCP      9 CICSINIT CPSM masname  LMAS
  12345 WDTR XLOP ABCD WLM EXCP      6 WDININIT CPSM masname  LMAS
  .
  In the WDIN CICSINIT trace entry, we see a return code traced
  as:
  .
  RETCODE    LEN:000004
         0 - 00000004
  .
  You also see the WTDA traced as part of the DYRCOMM. That shows
  the actual problem:
  .
  *....MAS001  .........0>eYUWMEYUR*
  *WTDA........0670........        *
  .
  Notice the lower case 'e' in the 'eYUWMEYURWTDA' string.
  .
  Additional Symptom(s) Search Keyword(s): KIXREVSVR
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICSPlex SM V4R2M0 Users                 *
  ****************************************************************
  * PROBLEM DESCRIPTION:    Your CICSplex manages a workload     *
  *                      routing incoming web services (Request  *
  *                      Streams).  You notice that the auxil-   *
  *                      liary trace data sets for target CICS   *
  *                      regions supporting this workload, and   *
  *                      CMASes to which the target regions      *
  *                      connect, fill rapidly when the workload *
  *                      is active.  When you format the trace   *
  *                      data using the CPSM trace formatter     *
  *                      EYU9XZUT, you find the following two    *
  *                      entries repeated for each routed trans- *
  *                      action:                                 *
  *                      .                                       *
  *                        TASK  MTD  PREV TRAN OBJ LEVL PT-ID   *
  *                            DEBUG   UOW  CMAS/USR ENVR        *
  *                        12345 WDIN WDTR ABCD WLM EXCP      9  *
  *                           CICSINIT CPSM masname  LMAS        *
  *                        12345 WDTR XLOP ABCD WLM EXCP      6  *
  *                           WDININIT CPSM masname  LMAS        *
  *                      .                                       *
  *                      Examining the CICSINIT trace generated  *
  *                      by method WDIN (EYU0WDIN - WLM Routine  *
  *                      Initialization and Termination) you     *
  *                      find the DYRCOMM area contains the fol- *
  *                      lowing string:  ">eYUWMEYURWTDA".       *
  ****************************************************************
  * RECOMMENDATION: After applying the PTF that resolves this    *
  *                 APAR, all MASes defined as routing regions   *
  *                 in a CPSM workload must be recycled to pick  *
  *                 up the new code.  Note that regions do not   *
  *                 need to be brought down and restarted at     *
  *                 the same time.                               *
  ****************************************************************
     CPSM imbeds the Transaction Data Area (TDA) in the DTR Comm-
  area DYRUSER field so that it flows to the target region during
  routing.  For routing requests initiated by the Request Streams
  (RZ) or Scheduler Services (SH) domains, CPSM's Distributed
  Routing Program (DSRTPGM) is called for Route Completion in the
  Routing Region to allow resources to be cleaned up when CICS has
  finished all processing.  CPSM marks the Transaction Data Area
  by setting the initial "E" of the eyecatcher to lower case to
  show that the TDA might no longer be valid.  When routing a Web
  Services request, a timing error in Request Streams domain might
  result in CPSM's DSRTPGM being called for Route Completion
  before CICS has sent the transaction to the target region.  If
  this happens, when CPSM's DSRTPGM is called for Route Initiate
  in the target region, module EYU0WDIN detects the invalidated
  TDA and returns an exception.  This does not prevent the trans-
  action from running, but might result in incorrect updating of
  transaction load factors by CPSM WLM.
  

Problem conclusion

•    Module EYU0WDIN was modified to refrain from marking the TDA
  invalid if called for Route Completion from the Request Streams
  domain.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

• ž**** PE15/02/24 FIX IN ERROR. SEE APAR PI35674  FOR DESCRIPTION
  

APAR Information

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

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

  PI17717 UI18752

Modules/Macros

• EYU0WDIN
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R70M PSY UI18752

     UP14/06/14 P F406

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.