Research Of Rational Migration And Load-balancing Based On Mobile Agent

Mobile Agent technology is involved in a great deal of fields, such as computer network, distributed system, communication technology, operating system, computer language and artificial intelligence, etc. In order to preferably avail the Mobile Agent technology, it would be settled which the kernal technology of the migration, communication, programming language, security, fault-tolerant, management, migration theory model of the Mobile Agent and cooperating model, etc.It shows the strong advantage in Internet field about the movability, autonomy nature, responsivity, leading goal nature and directing against the environment of the Mobile Agent, economize the bandwidth of the network and overcome the network to delay, it is real-time and long-range and mutual to support, encapsulation protocol, supporting to carry out asynchronously independently, supporting calculate (operate brokenly in succession)and the independence of the platform, dynamic adaptability, offering the personalized service , strengthening the strong and fault-tolerant ability to use off-line. It used in all respects extensively, such as E-commerce, network management, distributing information retrieval and releasing, parallel transaction processing, etc. Besides supporting real-time and remote-alternation, the others can realize too by the way of tradition, Mobile Agent technology offers the system framework which is satisfying in the whole request. It is the key technology of foundation among them, which migrate tactics on technical research of Mobile Agent becomes an important direction gradually.According to the migration tactics of Mobile Agent, synthesize the key technology of load-balancing and fault-tolerant on Mobile Agent appeared in the course of migration etc, has improved the choice tactics of migrating route on the basis of ant colony algorithms, has put forward a kind of balanced migration method qualified to restrain, has reacted the balanced function of the network, has improved the efficiency of distributed parallel computation. It analyses the insertion point method in some fault-tolerant commonly used, is it meddle in some fault-tolerant solutions according to network software and hardware resource state dynamically to propose, can reduce the missing or overflow of Mobile Agent effectively, has strengthened the dependability of the migration, and uses the Aglet platform of IBM laboratory of Tokyo to construct the distributedly calculating environmental model and tries tentatively, utilize matrix to take advantage of verifying systematic feasibility, dependability, efficiency in operation. The experiment proves utilize the rule to evade the route and load balancing, improved the efficiency of migration, increased and meddled in some fault-tolerant technology dynamically at the same time, guarantee the dependability of parallel computation.