Enhancing Jini for use across non-multicastable networks

Abstract

Distributed heterogeneous systems are being increasingly used to execute a variety of large size simulation and computational problems. Resource management is one of the most important issues in building such systems. Recently, Sun introduced the Jini connection technology for building plug-and-play networks of resources. Jini relies on multicasting across the network for its internal protocols. However, in a distributed environment, such as the one under consideration here, multicasting may not be supported across the subnets for various reasons. In this paper we describe enhancements to Jini required to use it for building a middleware resource management system in a distributed environment that does not support multicasting. In particular, we introduce a lightweight service, called the Tunneling Service, which tunnels multicast messages across the subnets. We have implemented our mechanism and used it to successfully tunnel messages between subnets in a single domain and also between different domains. In this paper we describe our design choices and our implementation of the system.

References

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Index Terms

• Computer systems organization

  • Architectures

    • Distributed architectures

  • Dependable and fault-tolerant systems and networks

• General and reference

  • Cross-computing tools and techniques

    • Performance

• Hardware

  • Communication hardware, interfaces and storage

• Networks

  • Network performance evaluation

  • Network protocols

• Software and its engineering

  • Software organization and properties

    • Contextual software domains

      • Operating systems

        • Process management

    • Software system structures

      • Distributed systems organizing principles