Lazy fault tolerance-a method for dependable distributed systems

Author

Saito, Masahiko ; Yokoyama, Takanori ; Shimada, Masaru

Author_Institution

Res. Lab., Hitachi Ltd., Ibaraki, Japan

fYear

1994

fDate

24-25 Oct 1994

Firstpage

124

Lastpage

131

Abstract

We present a method called Lazy Fault Tolerance for refining the reliability of distributed systems. Lazy Fault Tolerance uses data redundancy and the data of objects are distributed over computers in accordance with their `nativity´, The data of system management objects, which control the whole system based on the information of each computer, are naturally distributed over all computers. The object will restore its data by gathering all information from all computers in the case of failures. Lazy Fault Tolerance can greatly reduce the performance degradation in the absence of failures, although it takes a longer time to restore the system when a computer fails

Keywords

distributed processing; fault tolerant computing; redundancy; reliability; software fault tolerance; Lazy Fault Tolerance; data redundancy; dependable distributed systems; nativity; performance degradation; reliability; system management object; Computer crashes; Control systems; Degradation; Distributed computing; Fault tolerance; Fault tolerant systems; Operating systems; Power system management; Process control; Redundancy;

fLanguage

English

Publisher

ieee

Conference_Titel

Object-Oriented Real-Time Dependable Systems, 1994. Proceedings of WORDS 94., First Workshop on

Conference_Location

Dana Point, CA

Print_ISBN

0-8186-7083-5

Type

conf

DOI

10.1109/WORDS.1994.518681

Filename

518681