Key-value databázové systémy

Abstract

The aim of this thesis is to describe Key-value database systems (KDBS), to show the advantages and disadvantages of these database systems (DBS) and to introduce some important representatives. The first part of the thesis focuses not only on a general description of KDBSs, but also on more detailed specifications of selected KDBSs and their comparison with each other. The work includes a study of existing DBSs and then the selection and commissioning of a testbed for testing these systems and comparing them with other DBSs. The thesis describes two prominent representatives of DBS test environments, YCSB and TPC. The YCSB environment is then used in the thesis to test four selected KDBSs: Redis, Aerospike, Riak KV and Memcached. The YCSB tests are run using scripts that first start and set up the DBS in the Docker environment. The paper concludes by presenting the values measured during testing, evaluating the results and comparing the performance of the KDBS.