Electrical computers and digital processing systems: multicomput – Computer-to-computer session/connection establishing – Session/connection parameter setting
Reexamination Certificate
2001-04-30
2009-06-02
Blair, Douglas B (Department: 2442)
Electrical computers and digital processing systems: multicomput
Computer-to-computer session/connection establishing
Session/connection parameter setting
C709S203000
Reexamination Certificate
active
07543066
ABSTRACT:
The invention is a method and apparatus for maintaining session affinity within a server farm when requests sharing a session ID switch between server groups or between server clones in a single server group. In accordance with the invention, client requests include a list of clone identification codes, each code uniquely identifying a clone within a server group for handling the request. The clone identification code may be appended to a session identification code. For each different server that handles a request in a session, a new clone identification code is appended without deleting or overwriting any previously appended clone identification codes. When a request is received, the list of clone identification codes associated with the request is parsed in a predetermined order to search for the first clone identification code that matches one of the clone identification codes of a server in the appropriate server group. If a match is detected, the request is dispatched to that clone. If no match is found, the request is dispatched to a server clone in the server group using any reasonable Work Load Management (WLM) mechanism and then the clone identification code of the selected clone is added to the list.
REFERENCES:
patent: 6098093 (2000-08-01), Bayeh et al.
patent: 7139792 (2006-11-01), Mishra et al.
patent: 7197547 (2007-03-01), Miller et al.
patent: 7349970 (2008-03-01), Clement et al.
patent: 2001/0039586 (2001-11-01), Primak et al.
patent: 2002/0007415 (2002-01-01), Douglis et al.
patent: 2002/0010783 (2002-01-01), Primak et al.
patent: 2002/0073211 (2002-06-01), Lin et al.
patent: 2002/0143958 (2002-10-01), Montero et al.
patent: 11041496 (2000-04-01), None
Colasurdo David B.
Hasti Srinivas
Montero Gabriel G.
Blair Douglas B
Clay A. B.
International Business Machines - Corporation
Saul Ewing LLP
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