JR58126: YOU EXPERIENCE PERFORMANCE ISSUES WHILE LOGGING IN

8.5.5.0-WS-BPM-IFJR58126
8.5.6.2-WS-BPM-IFJR58126
bpm.8600.delta.repository

APAR status

• Closed as program error.

Error description

• Logging in takes longer than expected and might fail if the user
  registry groups can't be retrieved when the server starts.
  
  PRODUCTS AFFECTED
  IBM Business Process Manager (BPM) Advanced
  IBM BPM Standard
  IBM BPM Express
  

Local fix

• Ensure all groups can be returned when the server starts.
  

Problem summary

• IBM BPM replicates group names from the configured user registry
   into the product database when the server starts. For this
  purpose, IBM BPM uses a wildcard query to get all groups when
  the server starts. Some user registries do not return all groups
   (or any groups) in response to this query, for example if a
  configured maximum result size threshold is exceeded.
  
  Groups that have been replicated into the IBM BPM database but
  are not returned as part of the wildcard query when the server
  starts are marked deleted in the IBM BPM database and aren't
  added to the in-memory group cache.
  
  If these groups exist, this "marked as deleted" indicator in the
  database is incorrect. Moreover, if the groups are used for task
  assignment or observed as groups of a user when that user tries
  to log in, performance-expensive database queries occur, leading
  to poor login performance or even lock congestion.
  

Problem conclusion

• A fix is included in IBM BPM V8.6 that prevents IBM BPM from
  marking security groups that exist in the IBM BPM table but are
  not returned from UserRegistry.getGroups API as inactive when
  the server starts. For example, UserRegistry.getGroups might not
   return all the groups that exist in an external user registry
  because either the VMM plug-in is partially implemented or the
  maximum result size threshold has been exceeded.
  
  To enable this feature, add the following lines to the
  100Custom.xml file after installing this fix:
  
  <common merge="mergeChildren">
   <security merge="mergeChildren">
    <mark-group-inactive-as-needed-in-start-up>false</mark-group-i
  nactive-as-needed-in-start-up>
   </security>
  </common>
  

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

  BPM STANDARD

• Fixed component ID

  5725C9500

Applicable component levels