Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2011-06-28
2011-06-28
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S003000, C714S004110, C714S010000, C714S011000, C714S012000, C714S013000, C714S015000, C714S018000, C714S048000, C709S221000, C709S223000, C709S224000
Reexamination Certificate
active
07971099
ABSTRACT:
A system and method are provided for improving recovery times in fallover conditions in a multinode data processing system by sending notification of the failure of a server node, which is acting as server for a client application running on a client node, to the client application. In the present invention, this notification is provided by the fallover node acting as backup for the server node. When a client application receives no response from a server for a long time, it assumes that the server has failed and initiates reconnection. The present invention speeds-up the reconnect initiated by the client application by having system level software proactively notify the client application about the server failure. This results in faster recovery for client applications.
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Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration for PCT/EP2009/052803 dated Aug. 18, 2009.
Coffey Michael K.
Muttur Manjunath B.
Beausoliel Robert
Dillon, Esq. Justin
Ehne Charles
Heslin Rothenberg Farley & & Mesiti P.C.
International Business Machines - Corporation
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