PI22076: HTTP session attributes are orphaned in attributes map with no metadata object.

APAR status

• Closed as program error.

Error description

• Under some circumstances, such as misconfiguration, timing windo
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  WebSphere eXtreme Scale clients using       *
  *                  eXtreme                                     *
  *                  Scale HTTP session management.              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Session attributes are left in the      *
  *                      attributes map with no                  *
  *                      corresponding metadata entry. These     *
  *                      attributes will remain in               *
  *                      the grid occupying space with no        *
  *                      mechanism to remove them                *
  *                      until the container is restarted.       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Under certain circumstances, such as misconfiguration,
  exceptions, timing windows, or exceptions, session attributes
  might remain in
  the data grid after the metadata entry has been evicted.
  

Problem conclusion

• WebSphere eXtreme Scale now has a task that runs periodically to
  check for and remove session attributes that do not have a
  corresponding metadata entry. This is only applicable for
  reuseSessionId=true.
  

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