Journal on Communications ›› 2014, Vol. 35 ›› Issue (10): 171-180.doi: 10.3969/j.issn.1000-436x.2014.10.001

• Papers • Previous Articles     Next Articles

Fault-tolerant scheduling algorithm for real-time tasks in virtualized cloud

Ji WANG,Wei-dong BAO,Xiao-min ZHU   

  1. Science and Technology on Information Systems Engineering Laboratory,National University of Defense Technology,Changsha 410073,China
  • Online:2014-10-25 Published:2017-06-14
  • Supported by:
    Specialized Research Fund for the Doctoral Program of Higher Education;The National Natural Science Foundation of China;Public Project of Southwest Inst.of Electron.& Telecom.Technology

Abstract:

In order to achieve the high reliability of real-time systems in virtualized clouds,a fault-tolerant scheduling algorithm for virtualized clouds named FSVC that used primary-backup approach to tolerate physical host failures was proposed.FSVC strived to enhance the performance by employing backup-backup overlapping technique and virtual Machine migration technique.The constraints of the two techniques were elaborately analyzed to realize fault tolerance.Besides,a two-phase policy was incorporated in FSVC to further improve the performance.Simulation experiments demonstrated that FSVC can improve the schedulability and resource utilization effectively in virtualized clouds.

Key words: virtualized cloud, fault-tolerant scheduling, primary-backup approach, real-time system

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