The Session Controller is a primary component in Ceptor – it contains the list of sessions that are currently known in the system, along with the information about each individual session, such as the logged-in flag, userid and password, and access rights. It also contains the authentication and authorization plugins that are responsible for authenticating the user or providing information needed for authorization.
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A Session Controller can operate either alone, or in a cluster of multiple Session Controllers, that synchronize sessions information with each other. If they are deployed in a cluster, as SC mirrors, each change in a session, such as session creation, logon, logoff or session removal are broadcasted to the other SC servers, so they all are instantly synchronized.
A number of Agents communicate with one or more SC servers, and each SC server synchronizes changes with the other SC servers like this:
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If the Agent 4 asks SC3 to create a new session, SC3 will tell SC1 and SC2 about the new session.
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