Performing Dynamically Injected Tasks on Processes Prone to Crashes and Restarts

  • Chryssis Georgiou
  • Dariusz R. Kowalski
Conference paper

DOI: 10.1007/978-3-642-24100-0_15

Volume 6950 of the book series Lecture Notes in Computer Science (LNCS)
Cite this paper as:
Georgiou C., Kowalski D.R. (2011) Performing Dynamically Injected Tasks on Processes Prone to Crashes and Restarts. In: Peleg D. (eds) Distributed Computing. DISC 2011. Lecture Notes in Computer Science, vol 6950. Springer, Berlin, Heidelberg

Abstract

To identify the tradeoffs between efficiency and fault-tolerance in dynamic cooperative computing, we initiate the study of a task performing problem under dynamic processes’ crashes/restarts and task injections. The system consists of n message-passing processes which, subject to dynamic crashes and restarts, cooperate in performing independent tasks that are continuously and dynamically injected to the system. The task specifications are not known a priori to the processes. This problem abstracts todays Internet-based computations, such as Grid computing and cloud services, where tasks are generated dynamically and different tasks may be known to different processes. We measure performance in terms of the number of pending tasks, and as such it can be directly compared with the optimum number obtained under the same crash-restart-injection pattern by the best off-line algorithm. We propose several deterministic algorithmic solutions to the considered problem under different information models and correctness criteria, and we argue that their performance is close to the best possible offline solutions.

Keywords

Performing tasks Dynamic task injection Crashes and restarts Competitive analysis Distributed Algorithms 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Chryssis Georgiou
    • 1
  • Dariusz R. Kowalski
    • 2
  1. 1.Department of Computer ScienceUniversity of CyprusCyprus
  2. 2.Department of Computer ScienceUniversity of LiverpoolUK