Path reduction in complex grid service provision

A complex grid service can be divided into several simple grid services. Performing these simple grid services in a specific sequence provides the results of the original complex one. These simple services can be provided using mobile agents or the Remote Procedure Call (RPC) method. The path reduction in the complex service provision will result a higher performance for the grid architecture. To reduce the mobile agent's path or the number of RPCs some services can be duplicated in other nodes. Duplication has several problems and difficulties such as ownership and copyright issues and financial problems. An interesting concept in the grid services, which have been presented recently, is the mobility of grid services. A mobile service can be migrated from one node to another one. In this paper, we integrate the mobility of agents with the mobility of services. In this model, the service provider sends a mobile agent to a defined sequence of nodes, and calls some grid services to migrate from other nodes to these nodes. This will reduce the provisioning path of complex services. Path reduction using migration of mobile services instead of copying services in several nodes may improve the performance and reduce the load of network and nodes.

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