Defect-free type remote procedure call system and method thereof

Details Defect-free type remote procedure call system and method thereof Defect-free type remote procedure call system and method thereof

1996-08-26

1998-09-01

Ramirez, Ellis B.

G06F 1700

Patent

active

058022988

ABSTRACT:
When a client sends an RPC request that requests a server for a service, the client adds identification information to the RPC request. When an active server receives an RPC request, it stores the identification information thereof in a stable area that is not destroyed even if a defect takes place in the client or the server, and executes the requested service. When a defect takes place in the active server, the backup server takes over the process of the active server. A PALIB of the backup server compares the identification information of the RPC request re-sent from the client with the identification information in the stable area. When they match, the PALIB determines that the RPC request is redundant. The backup server performs a redundant process and sends back the correct result to the client.

REFERENCES:
patent: 4530051 (1985-07-01), Johnson et al.
patent: 5253342 (1993-10-01), Blount et al.
patent: 5276871 (1994-01-01), Howarth
patent: 5371889 (1994-12-01), Klein
patent: 5448698 (1995-09-01), Wilkes
patent: 5513314 (1996-04-01), Kandasamy et al.
patent: 5561769 (1996-10-01), Kumar et al.

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