Client/server system which automatically ensures the correct and exclusive supervision of data against faults
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United States of America Patent
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Aug 27, 2002
Grant Date -
N/A
app pub date -
May 15, 1995
filing date -
Jul 5, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a client/server system of the type wherein a server exclusively supervises data which is common to a plurality of clients. If it is detected that the server breaks down, the client temporarily retreats data, which must be transferred to the server, in a certain memory area. When it is then detected that the server is made operative again, the client automatically transfers the data, which is temporarily saved, to the server. If the client breaks down, it is detected whether or not the server is in operation and it is also checked whether or not the data which is being processed at the time of break-down or data not transferred to the server is present, after the client is made operative again. When the server is in operation and the not-yet-transferred data is left, the client automatically transfers the not-yet-transferred data to the server. In any case, the client automatically transfers data to the server and transmits a message to the server, informing that the supervising information of the data must be renewed.
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