PH39579: EYUWM0403E OCCURRED AFTER APPLYING MAINTENANCE 21/08/26 PTF PECHANGE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Maintenance was applied to the CICSplex environment. It upgraded
  CPSM to v5.5 L2106.  After applying the maintenance the
  following message is occurring:
  
  EYUWM0403E Workload Manager Task has reported an error
  processing event (MAS STOP) for MAS (CICSMAS1)
  
  The exception tracing shows the following:
    00139 XCLZ XCLC WMGR CHE EXCP    178 CHGXELEF CPSM
    00139 XCLC WMAT WMGR CHE EXCP     19 UPDCLAIF CPSM
    00139 WMAT WMEV WMGR WLM EXCP     20 WMATXCLC CPSM
    00139 WMEV WMGR WMGR WLM EXCP     11 WMEVWMAT CPSM
  
  We are trying to make a change to an AIX element but it fails
  and results in the EYUWM0403E message.
  

Local fix

• A COLD start of the plex should resolve the issue
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS CPSM V5R4M0 and V5R5M0 users.       *
  ****************************************************************
  * PROBLEM DESCRIPTION: A MAS which is a target region in a     *
  *                      workload is stopped. The CMAS it is     *
  *                      connected to issues the following       *
  *                      message to the job log:                 *
  *                      EYUWM0403E cmasname Workload Manager    *
  *                      Task has reported an error processing   *
  *                      event (Mas Stop) for MAS (masname).     *
  ****************************************************************
  * RECOMMENDATION: All CMAS regions should be restarted to      *
  *                 activate the fix. The restarts can occur in  *
  *                 any order.                                   *
  ****************************************************************
  APAR PH19761 introduced the ability for a cache list to utilise
  storage across multiple data spaces. To achieve this, a new
  cache list implementation was introduced, and used for selected
  lists. The implementation for each list is selected when the
  list is created. Some lists, such as the WPLX_AOR_LID, used by
  WLM, are held in shared data spaces and can persist across a
  CPSM CMAS WARM restart.
  In the reported problem, a CMAS was started without the PH19761
  PTF applied. That CMAS installed a workload and built the
  WPLX_AOR_LID cache list in the WLM data space. Later, the PTF
  for PH19761 was applied and the CMAS performed a WARM restart.
  That is, one or more MAS regions, or batch CPSM API address
  spaces remained active and connected while the CMAS was down.
  After the CMAS had started against the updated code, a MAS
  terminated. That MAS was defined as a routing region within the
  workload. During termination, method WMAT attempted to update
  the WPLX_AOR_LID cache list. A logic error caused the CMAS to
  assume that this list used the new cache list implementation.
  Consequently, the attempt to update the alternate index of the
  cache list failed. The CMAS issued message
  EYUWM0403E cmasname Workload Manager Task has reported an error
  processing event (Mas Stop) for MAS (masname).
  The same issue could occur during MAS start up.
  

Problem conclusion

• UI74404 UI74405
  Method XCLZ (EYU0XCLZ) has been modified to make the correct
  assumption if index type is not set. This avoids having to cold
  start the CMAS.
  

Temporary fix

Comments

APAR Information

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

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

  UI76923 UI76924

Modules/Macros

• CJC9DBUG CJD9DBUG CJE9DBUG CJF9DBUG CJG9DBUG CJH9DBUG EYU0BADE
  EYU0BAIN EYU0BASE EYU0BIBD EYU0BINT EYU0BMBA EYU0BMIN EYU0BMRA
  EYU0BMRV EYU0BMZ3 EYU0BMZ6 EYU0DTXT EYU0DVAD EYU0DVAF EYU0DVAP
  EYU0DVBF EYU0DVCF EYU0DVCL EYU0DVDF EYU0DVEF EYU0DVHF EYU0DVJF
  EYU0DVKF EYU0DVKW EYU0DVLQ EYU0DVMF EYU0DVML EYU0DVMP EYU0DVNF
  EYU0DVNT EYU0DVOF EYU0DVQD EYU0DVQF EYU0DVQL EYU0DVRC EYU0DVRF
  EYU0DVRP EYU0DVSF EYU0DVSR EYU0DVST EYU0DVTF EYU0DVWF EYU0DVWI
  EYU0DVWJ EYU0DVWT EYU0UCDC EYU0UCL1 EYU0UCL2 EYU0UCLA EYU0UCLB
  EYU0UCLC EYU0UCLD EYU0UCLE EYU0UCLF EYU0UCLG EYU0UCLI EYU0UCLK
  EYU0UCLL EYU0UCLM EYU0UCLO EYU0UCLP EYU0UCLR EYU0UCLU EYU0UCLV
  EYU0UCLW EYU0UCLX EYU0UCLY EYU0UCLZ EYU0XCDC EYU0XCL1 EYU0XCL2
  EYU0XCLA EYU0XCLB EYU0XCLC EYU0XCLD EYU0XCLE EYU0XCLF EYU0XCLG
  EYU0XCLH EYU0XCLI EYU0XCLK EYU0XCLL EYU0XCLM EYU0XCLO EYU0XCLP
  EYU0XCLR EYU0XCLS EYU0XCLU EYU0XCLV EYU0XCLW EYU0XCLX EYU0XCLY
  EYU0XCLZ EYU0XCRB EYU0XCRS EYU0XCX3 EYU0XL10 EYU0XL40 EYU0XL50
  EYU0XL70 EYU0XL80 EYU0XLUT EYU9D540 EYU9D550 EYU9DBG0 EYU9DBG1
  EYU9DBG2 EYU9DBG3 EYU9DBUG EYU9XCP3 EYU9XCP4 EYU9XCP6 EYU9XCPU
  EYU9XCR3 EYU9XCR4 EYU9XCR6 EYU9XCRU EYU9XLOP EYU9XMAL EYULXCLT
  EYUTXLOD EYUTXLUK
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R10M PSY UI76924

     UP21/08/28 P F108 ­

• R20M PSY UI76923

     UP21/08/28 P F108 ­

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.