5.9.1 HTTP session that is implicitly created in JSP
Set not to implicitly create HttpSession objects with the processing that does not require session inheriting.
With the application for which you enabled the session failover functionality, global session information is created and processing of updating global session information occurs even when creating an HTTP session without registering attributes.
With JSP specifications, HttpSession objects are created by default. As a result, unnecessary processing might increase memory usage and generate load due to communication with a database.
Use session attribute of page directive for performing settings related to creating HttpSession objects.