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PM94476: CPSM WORKLOAD OPTIMIZATION CONFLICT AFTER UPGRADING CMAS FROM PRE-4.1 RELEASE. EYUWM0508I

A fix is available

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APAR status

  • Closed as program error.

Error description

  • You upgrade your CPSM environment from a pre-4.1 release which
    did not have Sysplex Optimized Workload Management to one that
    does (4.1 or higher.) The MP CMAS is upgraded first, as
    required.
    .
    While you are still in a mixed-release environment (pre-4.1
    CMASes mixed with 4.1 or higher CMASes) you use a WUI connected
    to the higher release and set the CICS System Definition record
    (CSYSDEF) to set "WLM optimization enablement" field WLMOPTEN
    to ENABLED.
    .
    Optimized Workloads did not exist prior to CPSM 4.1, so CMASes
    running a pre-4.1 release do not get their version of the
    CSYSDEF record updated.
    .
    When those lower-level CMASes are then upgraded, the EYUDREP
    upgrade utility EYU9XDUT expands the CSYSDEF records in their
    CMAS repository to include the new fields, but it initializes
    them with the default values, which is to have WLMOPTEN set to
    DISABLED. When the upgraded CMAS now makes first contact with
    the MP CMAS and performs repository synchronization, the
    correct values for these new fields are not exchanged, and we
    now have two CMASes with different values for optimization for
    the same MAS.
    .
    When a MAS in this situation connects to the CMAS which
    believes optimization is disabled, it will not connect to the
    Region Status Server, and therefor not write a record to the
    coupling facility data table in the RS Server. But the
    connected CMAS believes it would have, and when it goes to read
    the record for the MAS in the RS Server, it fails. A trace
    record is written similar to the following:
    .
    TASK:12345
    METHOD:WMAA PRIOR:WMBA DEBUG:WMAARSSR POINTID: 22 TRANID:WMWC
    MAJOBJ:WLM  ENVRN:CMAS TYPE:EXCEPTION TOD:HH:MM:SS.TTTTT
    UOW(CPSM):  SYSTM:ABCD NAME:ABCDEFGH  CICS-TASK:54321
    .
    MethName  WMAA,WMBA,WMBP,WMBS,WMWB,WMWC,XLOP
    .
    RSSR rsp   LEN:000001     ALET:00000000 ADDR:28005AE2
           0 - 02
    .
    RSSR rsn   LEN:000001     ALET:00000000 ADDR:28005AE3
           0 - 0A
    .
    .
    The RSSR RESP/RSN of 02/0A mean:
      02 - RSSR_EXCEPTION
      0A - RSSR_TARGET_NOT_KNOWN
    .
    DFHRSSR sets this response and reason when it goes to read the
    coupling facility data table record for the MAS and doesn't
    find it there. A message is also written to the EYULOG:
    .
    EYUWM0508I Target region (masname) optimization termination
               reason: (RS server failure).
    .
    Trying to browse workload-related views in the WUI when a
    workload is in this situation may also result in the following
    message in the WUI
    .
    EYUVC1278E  Unable to obtain data for requested View. 'GET'
                (GET) request failed. (Failed, Exception)
    .
    Additional Keywords/Symptoms: KIXREVSVR
    

Local fix

  • Use the WUI to set optimization to DISABLED and then back to
    ENABLED to force the change to be sent over.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICSPlex SM V5R1M0 Users                 *
    ****************************************************************
    * PROBLEM DESCRIPTION: After a non-maintenance point (MP) CMAS *
    *                      is upgraded from a CPSM release prior   *
    *                      to 410, the CPSM WLM optimization       *
    *                      factors for routing and target regions  *
    *                      connected to the CMAS may be invalid.   *
    ****************************************************************
    * RECOMMENDATION: After applying the PTF that resolves this    *
    *                 APAR, all CMASes must be restarted.  Note    *
    *                 that the restarts do not need to occur at    *
    *                 the same time.                               *
    ****************************************************************
    The WLM optimization factors for routing and target regions are
    stored as attributes in the CPSM data repository CSYSDEF record
    for the region.  These attributes were added to the CSYSDEF
    record at CPSM 410.  When a CMAS is upgraded from a previous
    release, the CSYSDEF records are updated to include these new
    attributes, set to their default values.
    
    If after the MP CMAS was upgraded to 410 or greater, the
    attributes are changed to non-default values, all pre 410 non-MP
    CMASes that manage the CICSplex associated with the CSYSDEF will
    not be updated with the change, as their version of the CSYSDEF
    record does not contain the attributes.  When those CMASes are
    upgraded to 410 or higher, they will be updated to include the
    attributes at their default values, which will differ from what
    the MP CMAS specifies.
    

Problem conclusion

  • Changes have been made such that all CSYSDEF records for a
    CICSplex are passed to a non-MP CMAS that has been upgraded from
    a release prior to CPSM 410, the first time it connects to the
    MP CMAS after the upgrade is performed.  This will ensure that
    all CSYSDEF record attributes in the upgraded non-MP CMASes are
    consistent with the MP CMAS.
    

Temporary fix

  • *********
                * HIPER *
                *********
    FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PM94476

  • Reported component name

    CICS TS Z/OS V5

  • Reported component ID

    5655Y0400

  • Reported release

    80M

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-08-05

  • Closed date

    2013-09-10

  • Last modified date

    2015-03-04

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

    PM90362

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

    UK97405

Modules/Macros

  • EYU0XDAI EYU0XDXP EYU9BAP3 EYU9BAP4 EYU9BAP6 EYU9BAPU EYU9XDP3
    EYU9XDP4 EYU9XDP6 EYU9XDPU EYU9XDR3 EYU9XDR4 EYU9XDR6 EYU9XDRU
    EYUT2737 EYUY2737
    

Fix information

  • Fixed component name

    CICS TS Z/OS V5

  • Fixed component ID

    5655Y0400

Applicable component levels

  • R80M PSY UK97405

       UP13/09/13 P F309

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.

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Document Information

Modified date:
04 March 2015