Method of copying HTTP session by cookie and version number in clustered web application server

摘要

The present invention is an application server node using HTTP session identifier and version information from the clustered Web application server environment between relates to a method for performing an HTTP session replication efficiently. The present invention generates the session identifier and session version generates an HTTP session, and session information using the HTTP session created or changed when a multicast protocol, a session identifier, a session transfer information to any other version of the web application server, but at the time of creation just waiting for the transfer completion time, and returns the result changes, including those made only after the transfer command without waiting for completion of transmission time. And the results returned by the session cookie identifier, returned by storing the version number and, if later load distributor requests for the client to another Web application server, the web application server that extracts the session identifier and version number in the HTTP Cookie session exists in its own session storage, and HTTP sessions using the latest version of the HTTP session than when extracted from the cookie. Otherwise, if it receives the HTTP session information within a certain period of time through a multicast protocol, received the HTTP session utilize.