PM88129: ACCOUNTING AND STATISTICS FOR INPUT NODES NOT ACCURATE

APAR status

• Closed as program error.

Error description

• When using Accounting and Statistics for monitoring node CPU
  time, the actual CPU time is being added to the wait for message
  CPU time and to the input node time when a message is
  received. The CPU time should be allocated to the input node
  after getting a message and before the any message validation
  occurs.
  
  The incorrect statistics occur after applying APAR IC80423.
  Before APAR IC80423, the time was not allocated to both the
  input node CPU time and the waiting for messages CPU time and
  was not including the validation of a message in the CPU time
  for the input node. Hence after applying IC80423 the CPU time
  for the input node increased since it was now including more CPU
  time from processing of the message.
  
  Note: This does not effect the elapsed time just the CPU time.
  

Local fix

• no
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of WebSphere Message Broker and IBM Integration Bus
  using Accounting and Statistics.
  
  
  Platforms affected:
  z/OS, MultiPlatform
  
  ****************************************************************
  PROBLEM SUMMARY:
  When using message flow Accounting and Statistics for monitoring
  node processor time, the actual CPU time spent processing a
  message by the MQInput node is being added to the "CPU time
  spent waiting for input" thread statistic as well as to the "CPU
  time spent processing messages" node statistic. It should only
  be added to the latter. This double counting was introduced by
  APAR IC80423. In addition, the input node CPU time for
  processing a message does not currently include the message
  validation step, which it should do.
  
  Note: This problem does not affect the elapsed time, just the
  CPU time.
  
  
  There are a number of resource name changes between WebSphere
  Message Broker and IBM Integration Bus Version 9.0. For
  details visit
  http://pic.dhe.ibm.com/infocenter/wmbhelp/v9r0m0/topic/com.ibm.e
  tools.mft.doc/bb23814_.htm
  

Problem conclusion

• The product now includes the message validation as part of the
  input node's CPU time spent processing messages, and the CPU
  time spent waiting for input thread statistic does not include
  any message processing time.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v7.0       7.0.0.7
  v6.1       6.1.0.12
  v8.0       8.0.0.4
  v9.0       9.0.0.1
  
  The latest available maintenance can be obtained from:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27009742
  
  If the maintenance level is not yet available, information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

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

  WEB MB Z/OS

• Fixed component ID

  5655V6000

Applicable component levels

• R700 PSY

     UP