Functional reliability of a real-time redundant computational process in cluster architecture systems

Functional reliability models are proposed for a real-time redundant computational process when an incoming request flow is distributed for redundant execution of request copies in several nodes of a cluster architecture system operating under conditions of faults, failures, and errors in nodes; in...

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Published in:Automatic control and computer sciences Vol. 49; no. 1; pp. 46 - 56
Main Authors: Bogatyrev, V. A., Bogatyrev, A. V.
Format: Journal Article
Language:English
Published: Heidelberg Allerton Press 01.01.2015
Subjects:
Computer Science
Control Structures and Microprogramming
computing system
requests
redundant computations
real time
reliability
ISSN:0146-4116, 1558-108X
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Abstract Functional reliability models are proposed for a real-time redundant computational process when an incoming request flow is distributed for redundant execution of request copies in several nodes of a cluster architecture system operating under conditions of faults, failures, and errors in nodes; in this case, the reliability, integrity, and timeliness of executing functional requests must be ensured. The effect of the organization and redundancy rate of computations on their timeliness and reliability, as well as on the average request waiting time, is analyzed taking into account faults, failures, and errors in cluster nodes.
AbstractList Functional reliability models are proposed for a real-time redundant computational process when an incoming request flow is distributed for redundant execution of request copies in several nodes of a cluster architecture system operating under conditions of faults, failures, and errors in nodes; in this case, the reliability, integrity, and timeliness of executing functional requests must be ensured. The effect of the organization and redundancy rate of computations on their timeliness and reliability, as well as on the average request waiting time, is analyzed taking into account faults, failures, and errors in cluster nodes.
Author Bogatyrev, A. V.
Bogatyrev, V. A.
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10.1134/S0005117909120145
10.1155/MPE/2006/98171
10.1006/jcss.2000.1704
10.1007/978-1-4419-8237-7
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Keywords computing system
requests
redundant computations
real time
reliability
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References ShoomanMReliability of Computer Systems and Networks: Fault Tolerance, Analysis, and Design200210.1002/047122460X
Lee, M.H., Dudin, A.N., and Klimenok, V.I., The SM/V/N queueing system with broadcasting service, Math. Probl. Eng., 2006, vol. 2006, art. ID98171.
BogatyrevVAProtocols for dynamic distribution of requests through a bus with variablelogic ring for reception authority transferAutom. Cont. Compt. Sci.19993315763
KorenIFault tolerant systems2009San FranciscoKaufmann
BogatyrevVAExchange of duplicated computing complexes in fault tolerant systemsAutom. Cont. Compt. Sci.201145526827610.3103/S014641161105004X
DudinANSungBMulti-server queueing system MAP/PH/N with controllable broadcasting service by unreliable serversAutom. Cont. Compt. Sci.20094324725610.3103/S0146411609050046
BogatyrevVAAn interval signal method of dynamic interrupt handling with load balancingAutom. Cont. Compt. Sci.200034651571773840
KopetzHReal-Time Systems: Design Principles for Distributed Embedded Applications201110.1007/978-1-4419-8237-7
BogatyrevVAFault tolerance of clusters configurations with direct connection of storage devicesAutom. Cont. Compt. Sci.201145633033710.3103/S0146411611060046
Sheng-TzongCChia-MeiChenTripathicSKFault-tolerance model for multiprocessor real-time systemsJ. Compt. Syst. Sci.20006145747710.1006/jcss.2000.17040970.68012
VishnevskiiVMTeoreticheskie osnovy proektirovaniya2003MoscowTEKh-NOSFERA(Theoretical Foundations of Design)
BogatyrevVABogatyrevSVGolubevIYuOptimization and the process of task distribution between computer system clustersAutom. Cont. Compt. Sci.201246310311110.3103/S0146411612030029
DudinANSungBUnreliable milti-line system with broadcast serviceAutom. Rem. Cont.200970122073208410.1134/S00051179091201451180.93094
AysanHFault-Tolerance Strategies and Probabilistic Guarantees for Real-Time Systems2012SwedenMälardalen Univ., Västerås
SorinDFault Tolerant Computer Architecture2009
StollingsVSovremennye komp’yuternye seti2003St. Petersb.Piter(Contemporary Computer Nets)
KhinchinAYaRaboty po matematicheskoi teorii massovogo obsluzhivaniya1963MoscowGlavizdat. Fiz.-Mat. Lit.(Works on Mathematical Theory of Mass Service)
H Kopetz (6373_CR3) 2011
M Shooman (6373_CR4) 2002
AYa Khinchin (6373_CR10) 1963
D Sorin (6373_CR5) 2009
AN Dudin (6373_CR8) 2009; 43
VA Bogatyrev (6373_CR14) 2012; 46
V Stollings (6373_CR11) 2003
VA Bogatyrev (6373_CR15) 2011; 45
VA Bogatyrev (6373_CR16) 2000; 34
VA Bogatyrev (6373_CR17) 1999; 33
C Sheng-Tzong (6373_CR2) 2000; 61
6373_CR7
H Aysan (6373_CR1) 2012
VA Bogatyrev (6373_CR13) 2011; 45
AN Dudin (6373_CR9) 2009; 70
I Koren (6373_CR6) 2009
VM Vishnevskii (6373_CR12) 2003
References_xml – reference: Sheng-TzongCChia-MeiChenTripathicSKFault-tolerance model for multiprocessor real-time systemsJ. Compt. Syst. Sci.20006145747710.1006/jcss.2000.17040970.68012
– reference: SorinDFault Tolerant Computer Architecture2009
– reference: Lee, M.H., Dudin, A.N., and Klimenok, V.I., The SM/V/N queueing system with broadcasting service, Math. Probl. Eng., 2006, vol. 2006, art. ID98171.
– reference: KorenIFault tolerant systems2009San FranciscoKaufmann
– reference: BogatyrevVABogatyrevSVGolubevIYuOptimization and the process of task distribution between computer system clustersAutom. Cont. Compt. Sci.201246310311110.3103/S0146411612030029
– reference: KopetzHReal-Time Systems: Design Principles for Distributed Embedded Applications201110.1007/978-1-4419-8237-7
– reference: DudinANSungBMulti-server queueing system MAP/PH/N with controllable broadcasting service by unreliable serversAutom. Cont. Compt. Sci.20094324725610.3103/S0146411609050046
– reference: BogatyrevVAAn interval signal method of dynamic interrupt handling with load balancingAutom. Cont. Compt. Sci.200034651571773840
– reference: BogatyrevVAFault tolerance of clusters configurations with direct connection of storage devicesAutom. Cont. Compt. Sci.201145633033710.3103/S0146411611060046
– reference: ShoomanMReliability of Computer Systems and Networks: Fault Tolerance, Analysis, and Design200210.1002/047122460X
– reference: KhinchinAYaRaboty po matematicheskoi teorii massovogo obsluzhivaniya1963MoscowGlavizdat. Fiz.-Mat. Lit.(Works on Mathematical Theory of Mass Service)
– reference: BogatyrevVAExchange of duplicated computing complexes in fault tolerant systemsAutom. Cont. Compt. Sci.201145526827610.3103/S014641161105004X
– reference: AysanHFault-Tolerance Strategies and Probabilistic Guarantees for Real-Time Systems2012SwedenMälardalen Univ., Västerås
– reference: BogatyrevVAProtocols for dynamic distribution of requests through a bus with variablelogic ring for reception authority transferAutom. Cont. Compt. Sci.19993315763
– reference: StollingsVSovremennye komp’yuternye seti2003St. Petersb.Piter(Contemporary Computer Nets)
– reference: VishnevskiiVMTeoreticheskie osnovy proektirovaniya2003MoscowTEKh-NOSFERA(Theoretical Foundations of Design)
– reference: DudinANSungBUnreliable milti-line system with broadcast serviceAutom. Rem. Cont.200970122073208410.1134/S00051179091201451180.93094
– volume: 34
  start-page: 51
  issue: 6
  year: 2000
  ident: 6373_CR16
  publication-title: Autom. Cont. Compt. Sci.
– volume: 46
  start-page: 103
  issue: 3
  year: 2012
  ident: 6373_CR14
  publication-title: Autom. Cont. Compt. Sci.
  doi: 10.3103/S0146411612030029
– volume-title: Fault-Tolerance Strategies and Probabilistic Guarantees for Real-Time Systems
  year: 2012
  ident: 6373_CR1
– volume: 45
  start-page: 268
  issue: 5
  year: 2011
  ident: 6373_CR13
  publication-title: Autom. Cont. Compt. Sci.
  doi: 10.3103/S014641161105004X
– volume-title: Reliability of Computer Systems and Networks: Fault Tolerance, Analysis, and Design
  year: 2002
  ident: 6373_CR4
  doi: 10.1002/047122460X
– volume: 45
  start-page: 330
  issue: 6
  year: 2011
  ident: 6373_CR15
  publication-title: Autom. Cont. Compt. Sci.
  doi: 10.3103/S0146411611060046
– volume: 33
  start-page: 57
  issue: 1
  year: 1999
  ident: 6373_CR17
  publication-title: Autom. Cont. Compt. Sci.
– volume-title: Fault Tolerant Computer Architecture
  year: 2009
  ident: 6373_CR5
  doi: 10.1007/978-3-031-01723-0
– volume-title: Sovremennye komp’yuternye seti
  year: 2003
  ident: 6373_CR11
– volume: 43
  start-page: 247
  year: 2009
  ident: 6373_CR8
  publication-title: Autom. Cont. Compt. Sci.
  doi: 10.3103/S0146411609050046
– volume: 70
  start-page: 2073
  issue: 12
  year: 2009
  ident: 6373_CR9
  publication-title: Autom. Rem. Cont.
  doi: 10.1134/S0005117909120145
– volume-title: Teoreticheskie osnovy proektirovaniya
  year: 2003
  ident: 6373_CR12
– ident: 6373_CR7
  doi: 10.1155/MPE/2006/98171
– volume-title: Fault tolerant systems
  year: 2009
  ident: 6373_CR6
– volume: 61
  start-page: 457
  year: 2000
  ident: 6373_CR2
  publication-title: J. Compt. Syst. Sci.
  doi: 10.1006/jcss.2000.1704
– volume-title: Raboty po matematicheskoi teorii massovogo obsluzhivaniya
  year: 1963
  ident: 6373_CR10
– volume-title: Real-Time Systems: Design Principles for Distributed Embedded Applications
  year: 2011
  ident: 6373_CR3
  doi: 10.1007/978-1-4419-8237-7
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