IT34391: RDQM resource probe fails during "stop" action which then prevents auto-restart of the queue manager

APAR status

• Closed as program error.

Error description

• An active RDQM node rebooted unexpectedly (in the observed case,
  this was due to a kernel panic caused by an unrelated process),
  and encountered further resource issues issues on its restart.
  The queue manager does not automatically restart. Interrogation
  of the RDQM logs and diagnostics indicates that an attempt to
  resolve the mqm user against the operating system failed.
  
  The FFST associated with the monitor error was :
  
  | Probe Id          :- ZS818000
                                                |
  | Application Name  :- MQM
                                                     |
  | Component         :- zslRDSwitchToMqm
                                        |
  | SCCS Info         :-
  /build/slot2/p910_P/src/lib/zs/amqzslra.c,             |
  | Line Number       :- 2901
                                                    |
  | Program Name      :- rdqm
                                                    |
  | Arguments         :- monitor
                                                 |
  | Major Errorcode   :- xecF_E_UNEXPECTED_SYSTEM_RC
                             |
  | Minor Errorcode   :- OK
                                                      |
  | Probe Type        :- MSGAMQ6119
                                              |
  | Probe Severity    :- 1
                                                       |
  | Probe Description :- AMQ6119S: An internal IBM MQ error has
  occurred        |
  |   (setgroups)
                                                                |
  | FDCSequenceNumber :- 0
                                                       |
  | Arith2            :- 22 (0x16)
                                               |
  | Comment1          :- setgroups
                                               |
  | Comment2          :- Invalid argument
                                        |
  
  MQM Function Stack
  rdqm
  zslRDSwitchToMqm
  xcsFFST
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All IBM MQ users using RDQM feature.
  
  
  Platforms affected:
  Linux on x86-64
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A RDQM node was unable to access the mqm group id on Active
  Directory after the system
  rebooted unexpectedly. This caused the RDQM resource probe to
  fail, which led to a failure
  in the resource "stop" action, causing the resources to get
  marked as "not re-startable"
  This then prevented the queue manager from starting on any node.
  

Problem conclusion

• The RDQM resource agent has been modified to prevent errors on
  the "stop" action.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.1 LTS   9.1.0.9
  v9.2 LTS   9.2.0.3
  v9.x CD    9.2.1
  
  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 BASE MP

• Fixed component ID

  5724H7271

Applicable component levels