PH31055: HTTP SESSION COULD BE LOST WITH IDREUSE=FALSE WHEN FAILOVER HAPPENS.

APAR status

• Closed as program error.

Error description

• When we use idReuse=false, useContextRootAsCookiePath=true and
  there are several modules, the session could be lost when the
  session failover happens.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of WebSphere eXtreme Scale Client     *
  *                  with WebSphere eXtreme Scale HTTP session   *
  *                  management.                                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: With idReuse=false,                     *
  *                      useContextRootAsCookiePath=true         *
  *                      Session Data is not inherited after     *
  *                      session failover.                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  In Liberty if 2 or more web modules are running on same
  server, and idReuse=false, useContextRootAsCookiePath=true it
  causes session data loss during failover.
  

Problem conclusion

• Session code has been modified to handle idReuse=false,
  useContextRootAsCookiePath=true case during failover. For
  idReuse=false case customer will also have to enable
  useContextRootAsWXSCookiePath="true" in server.xml, The
  default value for it is false.
  
  example:
  <httpSessionElasticCache enabled="true"
  elasticCacheClientRef="client1" gridName="session1"
  replicationInterval="2" sessionTableSize="25000"
  useContextRootAsWXSCookiePath="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