PK11722: CICS TRANSACTIONS ENTERED THROUGH THE VSE CONSOLE BY A MSG COMMAND ARE SOMETIMES LOST, AND NEVER START.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Transactions are entered to CICS through the VSE console using
  MSG F2,DATA=CEMT INQ TAS commands. However, some of the CEMT
  transactions never start.
  .
  EVA100 in DFHEVA10 is the CICS OC exit routine (Operator
  Communications exit). EVA100 runs whenever a VSE MSG for the
  partition console is issued, and passes the data on to the
  subtask in a console input buffer (CIB). Parameter CIBVMAXN
  controls the number of CIBs obtained during startup, and is
  hardcoded to 64 (decimal). The CEMT transactions are sometimes
  dropped when the number of messages exceeds this CIB count.
  .
  Change Team provided a testfix to increase CIBVMAXN to 128, and
  this resolves the problem. Customer is also requesting a WTO
  informational message when CICS drops a transaction, rather than
  to just ignore the MSG and exit.
  VSE may also have same problem. See DY46353.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All.                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: MSG commands sent to CICS using the     *
  *                      VSE console may be lost.                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a MSG command to a partition running a CICS system
  is entered from a VSE console the Operator Communications
  Exit, EVA10O, is invoked to process the command. The input
  is passed to the messaging subtask in a Console Input Buffer
  (CIB). The number of CIBs available is determined by
  CIBVMAXN, which is currently hardcoded to 64. If all the CIBs
  are already in use the input message will be ignored, without
  notification.
  Note that VSE apar DY46353 fixes a problem with similar
  symptoms.
  Additional keywords: OCE OC OCExit DFHEV5010 MSGDFHEV5010
  MSGDFHEV5010I EV5010 EV5010I
  

Problem conclusion

• The number of CIBs getmained at CICS initialization has been
  increased to the current maximum possible, 255.The storage
  used for the CIBs will now be above the 16M line.
  A new message DFHEV5010I will be issued if there are still
  not enough CIBs to process a command.
  The CICS transaction Server for VSE/ESA V1.1 Messages and Codes
  GC34-5561-07, will have new message DFHEV5010I added to section
  1.24 as follows:
  DFHEV5010I CICS is busy. VSE MSG command has been rejected.
  Explanation:
  CICS cannot accept the MSG command as 255 MSG commands to
  invoke transactions are currently queued.
  System Action:
  CICS rejects the MSG command.
  User Response:
  Reenter the MSG command.
  Destination: Console
  Module: DFHEVAS
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

  UK10000

Modules/Macros

•    DFHEVA10 DFHMEEVC DFHMEEVE DFHMEEVG DFHMEEVK
  MFHMEEVE
  

Fix information

• Fixed component name

  CICSTS FOR VSE

• Fixed component ID

  564805400

Applicable component levels

• RB0P PSY UK10000

     UP05/12/16 P E312

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.