PI12686: Performance bottleneck exists when using permission check period configuration for security.

APAR status

• Closed as program error.

Error description

• When the user sets the permissionCheckPeriod parameter,
  permissions are cached requiring less authorization checks.
  The cache logic had some extra synchronization logic that
  caused it to become a bottleneck.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of eXtreme Scale who make use of  *
  *                  the permissionCheckPeriod setting in        *
  *                  objectgrid xml configuration.               *
  ****************************************************************
  * PROBLEM DESCRIPTION: With increased user load, response      *
  *                      time can be degraded due to waiting     *
  *                      on synchronized methods.                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The logic was updated to remove the need for synchronization
  to allow for requests to be processed concurrently.
  

Problem conclusion

• An interim fix is available for this APAR.
  

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 EXTREME SCAL

• Fixed component ID

  5724X6702

Applicable component levels

• R850 PSY

     UP

• R860 PSY

     UP