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cacheAllowance(time in seconds) (defaults to 0) (Version 2.4 and Above)- Adds the time specified to a session's application-derived timeout setting to determine the amount of extra time, if any, to leave an expired session in the cache.
cacheTimeout(deprecated) (time in seconds) (defaults to 0 on 2.4+, 28800 on earlier versions)- Deprecated in favor of the
cacheAllowancesetting. Period of inactivity after which unused sessions can be deleted from the cache. Should be set to a value at least as large as the largest timeout defined in the<Sessions>element of an Application, so that sessions don't disappear prematurely.
- Deprecated in favor of the
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