IT06925: WEBSPHERE MQ: "AMQ5534: USER ID '' AUTHENTICATION FAILED" EVEN THOUGH THE USER ID AND PASSWORD ARE CORRECT.

APAR status

• Closed as program error.

Error description

• An application connecting in client mode may get an error
  MQRC_NOT_AUTHORIZED (2035) returned to it incorrectly.
  The error does not happen every time, and may occur when there
  is an increasing MQ workload.
  
  The following three messages are written in queue manager error
  log file when the application receives the MQRC_NOT_AUTHORIZED:
  
  
  AMQ5534: User ID '' authentication failed
  and
  AMQ5542: The failed authentication check was caused by the queue
  manager
  CONNAUTH CHCKCLNT(REQUIRED) configuration.
  and
  AMQ9557: Queue Manager User ID initialization failed for '...'.
  
  The errors detailed above do not occur if Connection
  Authentication is disabled.
  
  MQ trace likely to show incorrect user IDs(e.g. blank user id or
  part of the user idn etc) during the failure.
  
  additional keywords: AUTHINFO CHCKLOCL
  

Local fix

• Disabling connection authentication and/or shared conversation
  likely to workaround this problem.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users using MQ client applications connecting to MQ v8 queue
  manager with SHARECNV > 1 and connection authentication enabled.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  This problem occurred because the user id and password were not
  set up correctly when using shared conversation.
  

Problem conclusion

• MQ has been modified to set up the user Id and password
  correctly when using shared conversation.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v8.0       8.0.0.3
  
  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

  WMQ BASE MULTIP

• Fixed component ID

  5724H7251

Applicable component levels

• R800 PSY

     UP