PH30724: EYUNL0090W APPLID LMAS IS SHUTTING DOWN BECAUSE IT FAILED TO BECOME AVAILABLE TO PROCESS REQUESTS.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• During MAS shutdown the following message was produced :
  EYUNL0090W applid LMAS is shutting down because it failed to
  become available to process requests
  .
  This message is not expected during MAS shutdown. It would be
  expected to occur during MAS startup if at all.
  .
  Once the MAS was restarted again, it connected fine and all was
  ok.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Very occasionally the EYUNL0090W        *
  *                      startup message is produced at          *
  *                      shutdown. This is due to race           *
  *                      conditions between CONL and COIE        *
  *                      transactions at both startup and        *
  *                      shutdown.                               *
  ****************************************************************
  * RECOMMENDATION: This fix affects MAS regions and will take   *
  *                 effect from the next MAS restart.            *
  ****************************************************************
  During MAS startup the CONL transaction checks to see if the
  COIE heartbeat transaction has started. This test is repeated
  each time CONL wakes, until the MASINITTIME is reached.
  If the COIE heartbeat task has not started in this time then
  message EYUNL0090W is issued.
  There is a timing window for COIE to go active while the
  CONL task is busy. In this situation CONL can then perform
  the wait code at shutdown and issue EYUNL0090W.
  Additional Keywords: msgEYUNL0090W
  

Problem conclusion

• The CONL wait for work loop was altered to disable the wait for
  COIE code if the COIE heartbeat was detected.
  

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:

  UI73255 UI73256 UI73257

Modules/Macros

• CJC0NLRT CJD0NLRT CJE0NLRT CJF0NLRT CJG0NLRT CJH0NLRT CJI0NLRT
  EYU0NLRT
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R10M PSY UI73257

     UP20/12/24 P F012

• R20M PSY UI73256

     UP20/12/24 P F012

• R30M PSY UI73255

     UP20/12/24 P F012

Fix is available

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