IT33935: OPTION TO CONFIGURE THE TIMEOUT VALUE FOR THE CONTENT BASED FILTERING.

APAR status

• Closed as program error.

Error description

• MQ APAR 'IT33901 : Performance degradation when using extended
  message selection' addresses a performance issue observed with
  Content Based Filtering.
  https://www.ibm.com/support/pages/apar/IT33901
  
  By default Content Based Filtering engine attempts maximum 6
  times with an wait interval of 5 seconds ie total 30 seconds to
  get filter evaluation requests from MQ side and this value is
  not configurable. Even after applying the MQ APAR IT33901, it
  may be required to change the wait time from its default 30
  seconds to improve the performance of extended message
  selection.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM App Connect Enterprise V11.0 and V12.0 and IBM
  Integration Bus V10.0 using Content based filtering.
  
  
  Platforms affected:
  z/OS, MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  MQ APAR 'IT33901 : Performance degradation when using extended
  message selection' addresses a performance issue observed with
  Content Based Filtering.
  https://www.ibm.com/support/pages/apar/IT33901
  
  By default Content Based Filtering engine attempts <span
  style="background-color:rgb(255, 255, 255)">to get filter
  evaluation requests from MQ side a</span> maximum 6 times with
  an wait interval of 5 seconds in between attempts ( ie total 30
  seconds). This value is not configurable. If running with an MQ
  version which is affected by MQ APAR <span
  style="background-color:rgb(255, 255, 255)">IT33901 this may not
  be enough time to wait for data.</span>
  
  Even after applying the MQ APAR IT33901, it may be required to
  change the wait time from its default 30 seconds to improve the
  performance of extended message selection.
  

Problem conclusion

• The product now introduces an environment variable
  'MQSI_CBF_MAX_GET_ATTEMPTS' to configure the number of times the
  Content Based Filtering engine attempts to get a filter work
  requests from MQ so that the maximum time it waits for a request
  can be increased or decreased. For example, setting the value to
  '12' makes the Content Based Filtering engine to wait maximum 60
  seconds for a work request.
  
  export MQSI_CBF_MAX_GET_ATTEMPTS=12
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v10.0      10.0.0.26
  v11.0      11.0.0.16
  v12.0      12.0.4.0
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  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

  INTEGRATION BUS

• Fixed component ID

  5724J0540

Applicable component levels