In-memory

In-memory session management provides the best performance for HTTP requests as long as the user's requests are always directed to the same server and this server never fails.

The local in-memory session manager doesn't persist the session in the host. Thus, when the host becomes unavailable, all session information is lost and when the server becomes available again, it cannot recover the previous session.

The local in-memory session manager doesn't share session information with other servers in the cluster. Thus, if the server fails, the adoptive server (another server in the cluster) cannot retrieve the session information, and the failover will fail.

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