JR43359: INCONSISTENT BEHAVIOURS WITH REST API RESUMESERVICE WHEN THE PROCESS CENTER IS IN A CLUSTERED ENVIRONMENT

Version 8.0 Refresh Pack 1 for the IBM Business Process Manager products
Version 7.5.1 Fix Pack 2 for the IBM Business Process Manager products
Version 7.5.1 Fix Pack 1 for the IBM Business Process Manager products

APAR status

• Closed as program error.

Error description

• The root of the problem is that the REST apis cache the state
  information (which we call the ExecutionContext) at each server
  node.
  Since the customer is using different clustered servers, the
  cached
  ExecutionContext is stale and results in the indicated error.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  
  * USERS AFFECTED:  Users of BPM Express, BPM Standard and BPM  *
  *                  Advanced.                                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: User gets incorrect results when using  *
  *                      Rest API in cluster env. (e.g: Task     *
  *                      status in node1 is not same as in       *
  *                      node2).                                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Due to staled cached executionContext, user get incorrect
  results when using different clustered servers.
  

Problem conclusion

• The code in class EJBWorkflowManagerBean reloaded the
  execution context only if it was null, but not when it was
  modified on another node in a cluster. The fix makes the class
  reload the execution context each time it is called, so it is
  always up-to-date.
  
  Install/Dependency information is available in the readme.txt
  on FixCentral. When the user goes to the download files page
  in FixCentral, the readme will be available with the fix
  package as a separate download.
  

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:

  JR43994

Fix information

• Fixed component name

  BPM ADVANCED

• Fixed component ID

  5725C9400

Applicable component levels

• R751 PSY

     UP