PH30556: CPSM AICA SEEN IN TOPOLOGY WARM RESTART PROCESSING

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You may see the following messages in your CMAS, accompanied by
  an SVC dump:
  
  EYUXL0905E applid AICA IN XCLA, OFFSET 00000678
  EYUXL0905E INTC=0079 ILC=2 TXCP=6E8C9800 SCODE=S???? TRAN=XLEV
    TASK=0012345
  EYUXL0905E METHODS=XCLA,TIW2,TIML,XLBI,XLEV
  
  EYUTI0003E applid TOPOLOGY INITIALIZATION FAILED.
  
  The dump title would look something like this:
  
  EYU9XLRV DUMP,applid,cmas,sysid,CMAS,XLEV,0012345,AICA,
    EYU0XCLA,mm/dd/yyyy,hh:mm:ss
  
  This APAR being raised to add points in the topology process
  that yields back to the QR TCB to avoid the possibility of an
  AICA.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICSPlex SM users.                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: While performing a CPSM CMAS WARM       *
  *                      restart, a CMAS issues message          *
  *                      EYUXL0905E reporting an AICA abend,     *
  *                      where method TIW2 is included in the    *
  *                      method call stack. Subsequently, the    *
  *                      CMAS issues:                            *
  *                      EYUTI0003E applid Topology              *
  *                                 Initialization Failed.       *
  ****************************************************************
  * RECOMMENDATION: PH30556 affects CMAS regions performing      *
  *                 a WARM CMAS restart, and will take effect    *
  *                 from the next restart. The restarts do not   *
  *                 need to occur at the same time.              *
  ****************************************************************
  A CMAS is performing a CPSM WARM CMAS restart. The CMAS is
  reconnecting to existing data spaces. During the Topology warm
  restart process, the topology data cache must be re-initialised.
  Data is temporarily held in a queue, then new cache list
  structures are created in the topology data cache. For a
  suitably large CICSplex, the time taken to read from the queue
  structure and write to the new cache list structure may exceed
  the CMAS region runaway ( ICVR ) value. If this happens, an
  AICA abend will occur, and topology initialisation will fail.
  The CMAS address space will terminate after message
  EYUXL0112E applid CMAS initialization failed
  
  Additional Keywords: TOPWCDTR_QTOKEN EXCPTOPI
  

Problem conclusion

• EYU0TIW2 has been updated to issue a suspend if needed to
  prevent the system ICVR time from being reached.
  Additionally, the process of adding records to the new cache
  list has been made more efficient to reduce the likelihood
  that the ICVR limit is reached.
  

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:

  UI73352 UI73353 UI73354 UI73355

Modules/Macros

• EYU0TIW2 EYU0TIWS
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R00M PSY UI73355

     UP21/01/09 P F101

• R10M PSY UI73354

     UP21/01/08 P F101

• R20M PSY UI73353

     UP21/01/08 P F101

• R30M PSY UI73352

     UP21/01/08 P F101

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.