A Framework for Evolutionary, Dynamically Updatable, Component-Based Systems

  • Authors:
  • Robert Bialek;Eric Jul

  • Affiliations:
  • -;-

  • Venue:
  • ICDCSW '04 Proceedings of the 24th International Conference on Distributed Computing Systems Workshops - W7: EC (ICDCSW'04) - Volume 7
  • Year:
  • 2004

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Abstract

Many distributed applications require 24/7/365 availability,and still need to be updated. We analyze how to updatesuch applications on-the-.y. This a challenging tasknot only because performing the updates without closing theapplication is dif.cult, but also because updates may introducepotential version con.icts between various applicationcomponents. We develop a framework (called DUCS)that facilitates dynamic updates of component-based distributedapplications. DUCS supports adaptation of existingapplications, dynamic component replacement, statetransfer, and interface modi.cations by utilizing so-calledinterface adapters.