Dynamic self adaptation in distributed systems

  • Authors:

  • Israel Ben-Shaul;Hovav Gazit;Ophir Holder;Boris Lavva

  • Affiliations:

  • -;-;-;-

  • Venue:
  • IWSAS' 2000 Proceedings of the first international workshop on Self-adaptive software
  • Year:
  • 2000

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Abstract

The emergence of global network connectivity has motivated the investigation of models and techniques for dynamic self adaptive distributed software for two reasons: to enable adjustment of deployed components to previously unknown and possibly dynamically changing hosting environments, and to adapt the inter-component distributed architecture in order to improve application scalability, performance and availability. Several issues impact the quality of self-adaptation, including the degree of adaptation, programming transparency, performance, and monitoring facilities. We discuss these issues and describe two approaches to self adaptation, one focusing on intra-component adaptation and the other on inter-component adaptation. Both approaches were fully implemented in the Hadas and FarGo projects, respectively.