JR62464: SERVICE-RESULT CACHING MIGHT NOT WORK CORRECTLY FOR LINKED SERVICE FLOWS, NESTED SERVICES WHEN RETRYING FAILED STEPS

workflow.20002.delta.repository

APAR status

• Closed as program error.

Error description

• To improve performance, you could enable service-result caching
  by selecting "Enable caching of service flow results" for a
  service flow. Service result caching is supported for top-level
  service flows but not for linked service flows.
  
  A service flow might return a cached result from a service flow
  run earlier even if service result caching is disabled if all
  the following conditions are met:
  
  - The service flow is called from a system task in a process and
  "Delete task on completion" is deselected on the system task.
  - The service flow calls a linked service flow and "Enable
  caching of service flow results" is selected for this service
  flow.
  - There is an activity in the linked service flow that saves the
  execution context, such as a script task where "Save execution
  context" is selected.
  - The service flow fails after the linked service flow was
  called, and the process is put in the "Failed" state.
  - You "Retry failed steps" for your process, such as by using
  Process Inspector.
  
  Service-result caching doesn't work correctly when "Delete task
  on completion is disabled", and the execution context is saved
  in nested service flows.
  
  Note: This interim fix also applies to services in the desktop
  IBM Process Designer.
  
  PRODUCTS AFFECTED
  IBM Business Automation Workflow
  

Local fix

• Disable service-result caching on the linked service flow.
  

Problem summary

•   This issue occurs because the service result cache setting is
    incorrectly used from a linked service flow during a retry of
    the failed steps from a process when the execution context of
    the service flow was saved.
  

Problem conclusion

• A fix is available or will be available that ensures
  service-result caching is performed correctly.
  

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

  BUS AUTO WORKFL

• Fixed component ID

  5737H4100

Applicable component levels