Determining the Cluster Size and the Number of Replicas of Highly Loaded Information System
https://doi.org/10.17586/0021-3454-2023-66-8-646-651
Abstract
The problem of ensuring the quality of customer service for highly loaded information systems is discussed. Existing solutions for scaling highly loaded information systems are considered. A procedure for determining the required number of nodes in a computing cluster based on the queuing theory is proposed. Results of a computational experiment on choosing the size of a computational cluster to ensure the average time for a user request executing to be below the established allowable time, are presented. A model for determining the number of replicas is proposed, in which, at a given intensity of incoming update requests, it is possible to avoid the critical level of the write-write conflict.
About the Authors
T. M. Tatarnikova
St. Petersburg State University of Aerospace Instrumentation
Russian Federation
Russian Federation
Tatiana M. Tatarnikova — Dr. Sci., Professor; Institute of Information Technologies and Programming; Director of the Institute
St. Petersburg
E. D. Arkhiptsev
St. Petersburg Electrotechnical University
Russian Federation
Russian Federation
Evgeny D. Arkhiptsev — Post-Graduate Student; Department of Information Systems
St. Petersburg
N. S. Karmanovskiy
ITMO University
Russian Federation
Russian Federation
Nikalay S. Karmanovskiy — PhD; Faculty of Secure Information Technologies
St. Petersburg
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Review
For citations:
Tatarnikova T.M., Arkhiptsev E.D., Karmanovskiy N.S. Determining the Cluster Size and the Number of Replicas of Highly Loaded Information System. Journal of Instrument Engineering. 2023;66(8):646-651. (In Russ.) https://doi.org/10.17586/0021-3454-2023-66-8-646-651
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