NonStop Servlets for JSP System Administrator's Guide

Configuring NSJSP
NonStop Servlets for JavaServer Pages (NSJSP) System Administrator’s Guide—525644-001
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Configuring the Manager for Sessions Support
className
The Java class name of the implementation to use. You must specify
org.apache.catalina.session.NSJSPPersistentManager.
debug
The debug level for messages logged to the associated logger. Higher numbers
generate more detailed output. The default debug detail level value used is 0
(zero).
entropy
A string value that is utilized when seeding the random number generator used to
create session identifiers. If this attribute is not specified, a semi-useful preset
value is used. For a security-conscious environment, use a long string value.
maxActiveSessions
The maximum number of active sessions that can be created. The default value
used is -1 for no limit or unlimited active sessions.
If this value is 0 or greater, having too many active sessions will result in some
being swapped out. The minIdleSwap attribute limits the sessions being
swapped out. Setting the minIdleSwap value to 0 means that sessions are
always swapped out after use; this is noticeably slow for the users. If this value is
too low, sessions may not be created.
If you change the default value, ensure that this value and the minIdleSwap
value are configured according to the amount of session-based traffic this server is
expected to receive. The recommended setting is -1.
maxIdleBackup
The time interval (in seconds) a session must be idle (time since last access to the
session) before it can be persisted to the session store. The default value of -1
disables this feature. Note however that the maxActiveSessions,
minIdleSwap, and maxIdleSwap parameters could override this parameter
value and swap out a session before it reaches its maximum idle time interval. If
this feature is enabled, the time interval specified here should be less than the
value specified for maxIdleSwap.
minIdleSwap
The time interval (in seconds) for which a session must be idle (time since last
access to the session) before it is eligible to be persisted to the session store and
passivated out of the NSJSP container's memory. The default value of -1 disables
this feature. If this feature is enabled, the time interval specified here should be
less than the value specified for maxIdleSwap.