Logic Java: combining object-oriented and logic programming
WFLP'11 Proceedings of the 20th international conference on Functional and constraint logic programming
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Currently most distributed telecoms software is engineered using low- and mid-level distributed technologies, but there is a drive to use high-level distribution. This talk reports the first systematic comparison of a high-level distributed programming language in the context of substantial commercial products. The research clearly demonstrates that Erlang is not only a viable, but also a compelling choice when dealing with high availability systems. This is due to the fact that it comparatively easy to construct systems that are: • resilient: sustaining throughput at extreme loads and automatically recovering when load drops; • fault tolerant: remaining available despite repeated and multiple failures; • dynamically reconfigurable: with throughput scaling, near-linearly, when resources are added or removed. But most importantly these systems can be delivered at a much higher productivity and with more maintainable deployment than current technology. This is attributed to language features such as automatic memory and process management and high-level communication. Furthermore, Erlang interoperates at low cost with conventional technologies, allowing incremental reengineering of large distributed systems.