PK90248: LOB DATA NOT STORED IN SESSION TABLE IN SOME INSTANCES WHEN USING SESSION PERSISTENCE TO DB2

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When fullyMaterializeLobData is set to false in the JDBC driver
  custom properties for the DB2 driver being used, the session
  persistence code fails to write LOB's to the session table.  The
  data is instead stored in memory and thus can be lost when the
  server is recycled.
  

Local fix

• Keep fullyMaterializeLobData set to true in the driver custom
  properties settings.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere Application Server    *
  *                 V7.0                                         *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Session Manager does not return an      *
  *                      existing session attributes             *
  *                      persisting in session persistence in a  *
  *                      failover application.                   *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a failover application retrieves an existing session
  attributes persisting into the lob data type column defined in
  the session persistence table, session attributes will not be
  retrieved since the lob data is not fully materialized properly.
  

Problem conclusion

• The session manager data retrieval mechanism is enhanced to
  fully materialize the data from the database in the
  configuration of datasource property fullyMaterializeLobData
  disabled.
  
  APAR PK90248 is currently targeted for inclusion in Service
  Level (Fix Pack) 7.0.0.5 of WebSphere Application Server V7.0.
  
  Please refer to URL:
  //www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
  for Fix Pack availability.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PK77100

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• BBGUBINF BBOUBINF
  

Fix information

• Fixed component name

  WEBSPHERE FOR Z

• Fixed component ID

  5655I3500

Applicable component levels

• R700 PSY UK48201

     UP09/07/27 P F907

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.