초록 ▼

A fault recovery method for a distributed processing system where a message called a heartbeat is broadcast among the processors once during each major processing cycle. The heartbeat message indicates the physical and logical identity of the transmitting processor with respect to the system arrange

A fault recovery method for a distributed processing system where a message called a heartbeat is broadcast among the processors once during each major processing cycle. The heartbeat message indicates the physical and logical identity of the transmitting processor with respect to the system arrangement as well as the processor\s present operational state. By monitoring the heartbeats from other processors, spare processors can autonomously take over the functions of failed processors without being required to consult or obtain the approval of an executive processor. The new physical location of a replaced processor will be automatically recorded by the other processors. The method has application to duplex standby and resource pool configurations as well as sparing arrangements.

대표청구항 ▼

In an arrangement comprising a plurality of processors interconnected for message communication and each having a logical identity defining functions performed by that processor with respect to said arrangement, a fault recovery method comprising each of said processors repeatedly broadcasting heart

In an arrangement comprising a plurality of processors interconnected for message communication and each having a logical identity defining functions performed by that processor with respect to said arrangement, a fault recovery method comprising each of said processors repeatedly broadcasting heartbeat messages to others of said processors, which heartbeat messages each define the logical identity of the processor broadcasting the heartbeat message, at least one of said processors maintaining an associated status table defining the logical identities of others of said processors based on heartbeat messages received therefrom and said at least one of said processors, upon failing to receive heartbeat messages defining one of said logical identities defined in said status table, initiating performance of the functions defined by said one of said logical identities.