RS03375: DECISION TABLE NOT RE-CALCULATED AFTER CONDITION CHANGE IN RETE

IBM Operational Decision Manager V8.10.2 Mod Pack
IBM Operational Decision Manager V8.10.2 Download Document
Operational Decision Manager V8.9.2.1: Interim Fix 13
Operational Decision Manager V8.9.2.1: Interim Fix 21
Operational Decision Manager V8.9.2.1: Interim Fix 25
Operational Decision Manager V8.9.2.2: Interim Fix 1 for Engine
IBM Operational Decision Manager V8.10.2 Mod Pack
IBM Operational Decision Manager V8.10.2 Download Document
Operational Decision Manager V8.9.2.1: Interim Fix 13
Operational Decision Manager V8.9.2.1: Interim Fix 21
Operational Decision Manager V8.9.2.1: Interim Fix 25
Operational Decision Manager V8.9.2.2: Interim Fix 1 for Engine
Operational Decision Manager V8.9.2.1: Interim Fix 32

APAR status

• Closed as program error.

Error description

• When a condition in a decision table, for example involving a
  variable changing from null to not null, in combination with
  Rete, the decision table is not re-calculated when the
  condition changes.
  
  The problem is caused by the miss-propagation of the update
  event in the rete network when a switch node is reach. Such
  node are used to represent a decision table by the Rete
  algorithm. Hence, the propagation is stopped in that node,
  preventing the condition and finally the rule tuple  memories
  from being correctly updated. Consequently, the table rule  is
  not executed as it should after the update.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * users using RETE algorithm and Decision Tables               *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * When a condition in a decision table, for example involving  *
  * a                                                            *
  * variable changing from null to not null, in combination with *
  * Rete, the decision table is not re-calculated when the       *
  * condition changes.                                           *
  *                                                              *
  * The problem is caused by the miss-propagation of the update  *
  * event in the rete network when a switch node is reach. Such  *
  * node are used to represent a decision table by the Rete      *
  * algorithm. Hence, the propagation is stopped in that node,   *
  * preventing the condition and finally the rule tuple          *
  * memories                                                     *
  * from being correctly updated. Consequently, the table rule   *
  * is                                                           *
  * not executed as it should after the update.                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• the code is fixed
  

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

  WS DECISION CTR

• Fixed component ID

  5725B6900

Applicable component levels

• R892 PSY

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