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Fault Tolerance in Mobile Agent Systems by Cooperating the Witness Agents

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2 Author(s)
S. Beheshti ; Department of Engineering Computer, Arak Azad University. Sb ; A. Movaghar

Mobile agents travel through servers for perform their programs and fault tolerance is fundamental and important in their itinerary. In the paper, are considering and described existent methods of fault tolerance in mobile agents. Then the method is considered that which uses cooperating agents to fault tolerance and to detect server and agent failure, meaning three type of agents involved: actual agent which performs programs for its owner, witness agent which monitors the actual agent and the witness agent after itself, probe which is sent for recovery the actual agent or the witness agent on the side of the witness agent. Traveling agent through servers, the witness is created by actual agent. Scenarios of failure and recovery of server and agent are discussed in the method. During performing the actual agent, the witness agents are increased by addition the servers. Proposed scheme is that minimizes the witness agents as far as possible, because with considering and comparing could concluded that existing all of witness agent is not necessary on the initial servers. Simulation of this method is done by C-Sim

Published in:

2006 2nd International Conference on Information & Communication Technologies  (Volume:2 )

Date of Conference:

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