PH50557: USERS REPORT STARTING CHIN STATISTICS AND ACCOUNTING HOWEVER, AT TIMES, NO SMF OUTPUT IS PRODUCED

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• MQ Development finds that when a START CHINIT command is
  issued, the QMGR checks whether channel initiator accounting
  (IFCID 190) or channel initiator statistics (IFCID 191) are
  active. The current values are copied into the CHINIT parameter
  control block, which the CHIN reads at startup to set the
  values in its XSMF control block. Any values set by
  START/STOP/ALTER TRACE commands between the START CHINIT
  command being accepted and the CHIN starting up and reading
  these values, will be lost.
  .
  Additional keywords:
   START TRACE(STAT) DEST(SMF) CLASS(4)
   START TRACE(ACCTG) DEST(SMF) CLASS(4)
   stats
  

Local fix

• There are a couple of options to circumvent this problem:
  - put the START TRACE commands before the START CHINIT command
    in the CSQINP2 concatenation
  - Move the START TRACE commands to CSQINPX
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 2 Modification 0 and                 *
  *                 Release 3 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Channel Initiator statistics and        *
  *                      Channel Accounting SMF records are      *
  *                      not produced when both the channel      *
  *                      initiator and statistics/accounting     *
  *                      traces are enabled in CSQINP2.          *
  ****************************************************************
  When the Channel Initiator is started from a data set in the
  CSQINP2 concatenation, the queue manager provides a copy of the
  relevant configuration parameters, including whether accounting
  and/or statistics trace is active.
  If the accounting and/or statistics trace are enabled or
  disabled by a subsequent command in CSQINP2, the trace is
  enabled in the queue manager (and will show in the output of
  DISPLAY TRACE), however the status used by the channel initiator
  is not updated, resulting in no Chinit SMF records being
  produced.
  

Problem conclusion

• CSQWVCST and CSQWVCSP are changed to update the state provided
  to the channel initiator for chinit startup, ensuring any
  changes are correctly reflected in the channel initiator's
  view of whether the traces are active.
  

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:

  UI93243 UI93244

Modules/Macros

• CSQWVCSP CSQWVCST
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R200 PSY UI93710

     UP23/10/11 P F310

• R300 PSY UI93709

     UP23/10/11 P F310

Fix is available

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