IT35461: AMQ6150 error message states a timeout period of zero minutes.

APAR status

• Closed as program error.

Error description

• The error "AMQ6150: IBM MQ semaphore is busy" in
  the error logs states a timeout of 0 minutes:
  
  ----- amqxfdcx.c : 885 -----
  01/04/2021 11:45:26 AM - Process(31411.125) User(mqm)
  Program(amqrmppa)
                      Host(www.example.com)
  Installation(Installation1)
                      VRMF(9.0.0.9)
  AMQ6150: IBM MQ semaphore is busy.
  
  EXPLANATION:
  IBM MQ was unable to acquire a semaphore within the normal
  timeout period of 0 minutes.
  
  The "of 0 minutes" at the end of the sentence does not provide
  any value to debugging the actual problem of the semaphore
  being locked by another process.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users receiving the AMQ6150 error message
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  Due to the asynchronous reporting of errors within
  performance-sensitive sections of MQ code, the length of the
  timeout incurred is not accessible when the AMQ6150 message is
  generated. As such, the timeout value is treated as zero, and
  should not have been included in the message text.
  

Problem conclusion

• The error reporting code has been updated to prevent the
  inclusion of the misleading "0 minutes" statement.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.0 LTS   9.0.0.12
  v9.1 LTS   9.1.0.8
  v9.2 LTS   9.2.0.3
  v9.x CD    9.2.3
  
  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

  IBM MQ BASE M/P

• Fixed component ID

  5724H7261

Applicable component levels