Electrical computers and digital processing systems: multicomput – Computer-to-computer session/connection establishing
Reexamination Certificate
2005-02-22
2005-02-22
Cardone, Jason D (Department: 2145)
Electrical computers and digital processing systems: multicomput
Computer-to-computer session/connection establishing
C709S225000, C714S004110
Reexamination Certificate
active
06859834
ABSTRACT:
System and method for enabling application server request failover. For each application server request to be performed by a client computer, a requesting thread may be operable to utilize a custom wire-level communication protocol. Request failure detection mechanisms may be built into the custom wire-level communication protocol so that a requesting thread detects a failed request much sooner than if the thread utilized a standard communication protocol and relied on the client computer operating system for notification of failed requests. After sending a request to an application server, a requesting thread may be operable to “sleep” and then periodically wake up to poll the application server computer to determine whether the request has failed. If the requesting thread receives a response from the application server computer indicating that the request is not currently being processed, then the requesting thread may re-send the request. Receiving no response to the poll message may indicate that the application server computer is offline, e.g., due to a failure. The requesting thread may redirect the request to another application server computer if necessary.
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Arora Tej
Das Saumitra
Cardone Jason D
Kivlin B Noël
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