March 2004
Intermediate to advanced
440 pages
11h 46m
English
book
DB2 UDB V8 and WebSphere V5 Performance Tuning and Operations Guide
by Whei-Jen Chen, Peter Z He, Kang Yong Ying, Andreas Paulsen, Sunminder S Saini
Content preview from DB2 UDB V8 and WebSphere V5 Performance Tuning and Operations Guide
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328 DB2 UDB V8 and WebSphere V5 Performance Tuning and Operations Guide
For persistent sessions, the administrator can specify times when the scan
will be run. This feature has the following benefits when used with persistent
session:
– Persistent store scans can be scheduled during periods that normally have
low demand. This avoids slowing down online applications due to
contention in the persistent store.
– When this setting is used with the End of servlet service write frequency
option, WebSphere does not have to write out the last access time with
every HTTP request. This is because WebSphere does not have to
synchronize the invalidator thread's deletion with the HTTP request
access.
The session cleanup schedule setting is found in th
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