A Systematic Review on Workload Change Detection in Distributed Databases

Keywords: distributed databases, adoptive design technics, hot data identification, workload change detection

Abstract

Distributed Databases became essential part of a large part of nowadays software. It has numerous of advantages including scalability, fault tolerance, high availability, and improved performance. It solves a lot of problems of centralized databases but can also suffer with challenges. One of them is skewed access. Workload in distributed DBMS often changes, such fluctuations can cause ineffective operation of the system. Imagine access to one row of database became 10 times more frequent, or complex requests start operating with the data highly distributed geographically. Such behavior shows that initial data distribution cannot be always efficient enough. And to address this problem adoptive design technics were invented. In this article we review the common steps of adoptive technics and concentrate attention at workload detection and hot data identification.

The purpose of the article is to introduce adoptive design approach of distributed database management systems, review and analyze existing technics and theirs steps, especially workload change detection and hot data identification. The final goal is to compare theses technics and lead out their main concerns.

As a result of this work some existing approaches were analyzed and highlighted their common parts alongside with differences, presented their main issues.

After reviewing all technics, we can see that current solutions cannot give precise results without creating much overhead to the system. Also, there is no approach to giving up-to-date information about hot data without creating overhead. Overhead in such situations is a major issue. In skewed access patterns distributed nodes can become very busy with processing queries and additional computations can lead to worse overall system performance then without adoptive design or even to node outage. So, search for solutions, that give precise and up-to-date results without significant overhead is a big field of future researches.

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Author Biography

Mykyta Pugach, V. N. Karazin Kharkiv National University, Svobody Sq 4, Kharkiv, Ukraine,61022

PhD student, Department of Theoretical and Applied Computer Sciences

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Published
2025-06-30
How to Cite
Pugach, M. (2025). A Systematic Review on Workload Change Detection in Distributed Databases. Bulletin of V.N. Karazin Kharkiv National University, Series «Mathematical Modeling. Information Technology. Automated Control Systems», 66, 56-62. https://doi.org/10.26565/2304-6201-2025-66-05
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Статті