Fault-Tolerance Mechanism of Computation Grid Service System Based on Mobile Agent

Constructing Computation Grid Service System with idle computers in an organization to provide computation service for Mobile Agent can save funds of high-performance computing and make full use of idle resources, but Fault-Tolerance mechanism must be researched to guarantee running of computation task when nodes or networks of the system fail. Three main parts of Fault-Tolerance mechanism of the system are researched in this paper. An adaptive Fault-Detection mechanism, a non-close, non-block and low-overhead Checkpointing mechanism, and a Partial Rollback Mechanism Based on Communication Domain are proposed, which can save overhead of Fault-Tolerance. Experiments have shown their advantages.