Session recovery support

 

For session recovery support, WAS provides distributed session support in the form of database sessions and memory-to-memory replication. You can use session recovery support when the user's session data must be maintained across a server restart or when the user's session data is too valuable to lose through an unexpected server failure.

All the attributes set in a session must implement java.io.Serializable if the session requires external storage. In general, consider making all objects held by a session serialized, even if immediate plans do not call for session recovery support. If the Web site grows, and session recovery support becomes necessary, the transition occurs transparently to the application if the sessions only hold serialized objects. If not, a switch to session recovery support requires coding changes to make the session contents serialized.

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Sub-topics

Distributed environment settings

 

Related concepts

Sessions
Distributed sessions

 

Related tasks

Task overview: Managing HTTP sessions

 

Reference topic