Network Deployment (Distributed operating systems), v8.0 > Reference > Tune tips
Session management tuning
WAS session support has features for tuning session performance and operating characteristics, particularly when sessions are configured in a distributed environment. These options support the administrator flexibility in determining the performance and failover characteristics for their environment.
Summary of tuning features. The following table summarizes the tuning features, including whether they apply to sessions tracked in memory, in a database, with memory-to-memory replication, or all. Some features are easily manipulated using administrative settings; others require code or database changes.
Feature or option Goal Applies to sessions in memory, database, or memory-to-memory Write frequency Minimize database write operations. Database and Memory-to-Memory Session affinity Access the session in the same application server instance. All Multirow schema Fully utilize database capacities. Database Base in-memory session pool size Fully utilize system capacity without overburdening system. All Write contents Allow flexibility in determining what session data to write Database and Memory-to-Memory Scheduled invalidation Minimize contention between session requests and invalidation of sessions by the Session Management facility. Minimize write operations to database for updates to last access time only. Database and Memory-to-Memory Tablespace and row size Increase efficiency of write operations to database. Database (DB2 only)
Scheduled invalidation
Sessions
Base in-memory session pool size
Write operations
Configure write contents
Configure write frequency
Task overview: Managing HTTP sessions
Tune the application serving environment
Related
Tune parameter settings
Tune parameter custom settings