IT28937: Queue managers can become partitioned after appliance shutdown and FDC with Probe ID DP138011 generated

APAR status

• Closed as program error.

Error description

• A First Data Capture (FDC) record is generated with the
  following function stack and probe ID on the MQ Appliance at
  version 9.1.2:
  
  Queue Managers may go partitioned after a reboot.
  
   | Probe Id          :- DP138011
                                                |
   | Application Name  :- MQM
                                                     |
   | Component         :- dpcSysKillCluster
                                       |
  ...
  | Program Name      :- mqdpinit
                                                |
  ...
   | Last ObjectName   :-
                                                         |
   | Major Errorcode   :- xecI_S_FAIL
                                             |
   | Minor Errorcode   :- OK
                                                      |
   | Probe Type        :- MSGAMQ6004
                                              |
   | Probe Severity    :- 1
                                                       |
   | Probe Description :- AMQ6004S: An error occurred during IBM
  MQ Appliance    |
   |   initialization or ending.
                                                  |
   | FDCSequenceNumber :- 0
                                                       |
   | Comment1          :- 'stopCluster' command failed.
                           |
  
  Function Stack:
  
  MQM Function Stack
  dpcInitDaemon
  dpcSysKillCluster
  xcsFFST
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of HA on the MQ Appliance at version 9.1.2
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A component of the MQ Appliance that is used to bring down Queue
  Managers during shut down was being incorrectly interrupted by
  signals. This caused Queue Managers to not come down correctly
  during a shutdown and therefore caused partitioned state.
  

Problem conclusion

• The script in question has been updated so it is not interrupted
  by signals.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v8.0       8.0.0.13
  v9.1 CD    9.1.3
  v9.1 LTS   9.1.0.4
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

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:

Fix information

• Fixed component name

  IBM MQ APPL M20

• Fixed component ID

  5725Z0900

Applicable component levels