Fault recovery in concurrent queue management systems

Details Fault recovery in concurrent queue management systems Fault recovery in concurrent queue management systems

2011-04-12

2011-04-12

Baderman, Scott T (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S010000, C714S013000, C370S229000, C370S230000

Reexamination Certificate

active

07925921

ABSTRACT:
A method for fault tolerance and fault recovery in multiprocessor systems that concurrently manage queues is disclosed. The illustrative embodiment comprises a plurality of servers, a queue of jobs to be assigned to the servers, and two queue managers—a primary unit and a secondary unit—such that the secondary fills in for the primary unit while the primary unit is down. The illustrative embodiment provides for smooth transitions from the normal state into the failure state and back into the normal state without losing jobs or violating the queue discipline of the system.

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