Monitoring Smoothly Degrading Systems for Increased Dependability

  • Authors:
  • Alberto Avritzer;Elaine J. Weyuker

  • Affiliations:
  • AT and T Network Computing Services Division, Room 2E-030, Red Hill, NJ 07748. E-mail: beto@hrmaple.hr.att.com;AT and T Labs-Research, Room 2A-429, 600 Mountain Ave., Murray Hill, NJ 07974. E-mail: weyuker@research.att.com

  • Venue:
  • Empirical Software Engineering
  • Year:
  • 1997

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Abstract

A strategy is presented for determining when it is advantageousto take some action to restore a system to full capacity. A determinationis made of the types of data that need to be collected and circumstancesunder which the strategy is likely to be useful. Production trafficdata is presented for a very large industrial telecommunicationsproject, and the strategy is applied. An investigation is madeof when the application of the strategy leads to increased systemavailability and decreased packet loss experienced by users.