Method and system for error recovery for cascaded servers

Details Method and system for error recovery for cascaded servers Method and system for error recovery for cascaded servers

1992-11-05

1995-03-07

Beausoliel, Jr., Robert W.

G06F 1100

Patent

active

053966139

ABSTRACT:
An improved method for error recovery in client-server distributed processing systems using cascaded servers. The method adds an additional form of acknowledgement message from a server to its predecessor. This message is sent when the server has completed all its processing and has received an ACK message from its successor, indicating that its result has been successfully received by the successor. The predecessor server retains a copy of its results until it receives the done message, at which time the copy of the results is discarded. If a done message is not received by the time a timer has expired, indicating that a problem has occurred with a server or its communications, the predecessor server resends its stored results.

REFERENCES:
patent: 4766596 (1988-08-01), Michels-Krohn et al.
patent: 4800488 (1989-01-01), Agrawal et al.
patent: 4866707 (1989-09-01), Marshall et al.

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