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Smart Home Open-Source Components
Kúšik, Lukáš ; Letavay, Viliam (referee) ; Pluskal, Jan (advisor)
The aim of this thesis is to examine the state-of-the-art commercial elements found in smart home households. Their freely available alternatives are explored, together with three open-source home automation platforms. We review freely available microcontroller development kits, usable for the development of smart sensors. After that, using a suitable combination of electronic components and microcontrollers, components are designed and implemented for our own smart home system, utilizing the Home Assistant platform. This incorporates a built-in redundancy, designed to withstand cases of a failure of any component. The developed tool uses container orchestration technology, real-time file synchronization and automatically configured database clusters, to achieve a unique and comprehensive solution to high availability of Home Assistant.
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High availability Microsoft Sql Server
Pyszko, Pavel ; Lattenberg, Ivo (referee) ; Zeman, Václav (advisor)
The thesis contains a complete theoretical overview of high availability technologies in Microsoft SQL Server. For each technology, guidance is provided for the deployment of technologies. Technologies are analyzed from a security perspective, they are determined advantages and disadvantages of using technology in practice and is determined the optimal variant of use of the technology. High availability technology are compared with each other and is given the availability of individual technologies in versions of MS SQL Server. The thesis contains three scenarios with practical examples of using technology for high availability in practice. It provides an analysis of high-availability features in Oracle and are subsequently compared high availability features in Oracle environments with high availability technology in MS SQL Server.
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Operator for MariaDB Galera Cluster in OpenShift
Javorský, Lukáš ; Malinka, Kamil (referee) ; Januš, Filip (advisor)
Hlavným cieľom bakalárskej práce je vytvoriť riadený systém databázových serverov, ktorý je schopný sa adaptovať a reagovať na ich aktuálne zaťaženie. Riešenie tohto problému nachádzame práve v najnovšej platforme, určenej pre riadenie a nasadenie OpenShift 4 postavenej na základoch softwaru Kubernetes. Použitím operátora ako mysle celého OpenShift clustra, zodpovedného za nasadenie, vyvažovanie záťaže, detekciu zlyhaní a zotavenie po zlyhaní MariaDB kontajneroch, môžeme zabezpečiť, že bude databáza bezproblémovo fungovať, dokonca aj pri najvyšších špičkách záťaže počas dňa. Na replikáciu medzi databázovými servermi sa využíva softvér Galera vo vnútri každého MariaDB servera, ktorý zabezpečuje konzistentný obsah.
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Virtualisation and Optimalisation of IT in a Production Company
Popelka, David ; Hégr, Robert (referee) ; Ondrák, Viktor (advisor)
The master‘s thesis deals with the implementation of server virtualization in the Entity production, s.r.o., which is a small company by it’s size, but needs modern IT technologies for the normal operations. The thesis shows how to reuse the server virtualization technologies from large corporations, that have been unavailable to small business companies in past. It also design show to optimize the current IT environment.
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Optimization of Distributed Network Flow Collector
Wrona, Jan ; Grégr, Matěj (referee) ; Žádník, Martin (advisor)
This thesis is focused on the optimization of distributed IP flow information collector. Nowadays, the centralized collector is a frequently used solution but is already reaching its performance limits in large scale and high-speed networks. The implementation of the distributed collector is in its early phase and it is necessary to look for solutions that will use it to its full potential. Therefore this thesis proposes a shared nothing architecture without a single point of failure. Using the above proposed architecture, the distributed collector is tolerant to the failure of at least one node. A distributed flow data analysis software, whose performance scales linearly with the number of nodes, is also part of this thesis.
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Available Solutions for Server Clustering
Bílek, Václav ; Čejka, Rudolf (referee) ; Kašpárek, Tomáš (advisor)
The goal of this master thesis is to analyze Open Source resources for loadbalancing and high availability, with aim on areas of its typical usage. These areas are particularly solutions of network infrastructure (routers, loadbalancers), generally network and internet services and parallel filesystems. Next part of this thesis is analysis of design, implementation and plans of subsequent advancement of an fast growing Internet project. The effect of this growth is necessity of solving scalability on all levels. The last part is performance analysis of individual loadbalancing methods in the Linux Virtual Server project.
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Operator for MariaDB Galera Cluster in OpenShift
Javorský, Lukáš ; Malinka, Kamil (referee) ; Januš, Filip (advisor)
Hlavným cieľom bakalárskej práce je vytvoriť riadený systém databázových serverov, ktorý je schopný sa adaptovať a reagovať na ich aktuálne zaťaženie. Riešenie tohto problému nachádzame práve v najnovšej platforme, určenej pre riadenie a nasadenie OpenShift 4 postavenej na základoch softwaru Kubernetes. Použitím operátora ako mysle celého OpenShift clustra, zodpovedného za nasadenie, vyvažovanie záťaže, detekciu zlyhaní a zotavenie po zlyhaní MariaDB kontajneroch, môžeme zabezpečiť, že bude databáza bezproblémovo fungovať, dokonca aj pri najvyšších špičkách záťaže počas dňa. Na replikáciu medzi databázovými servermi sa využíva softvér Galera vo vnútri každého MariaDB servera, ktorý zabezpečuje konzistentný obsah.
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Smart Home Open-Source Components
Kúšik, Lukáš ; Letavay, Viliam (referee) ; Pluskal, Jan (advisor)
The aim of this thesis is to examine the state-of-the-art commercial elements found in smart home households. Their freely available alternatives are explored, together with three open-source home automation platforms. We review freely available microcontroller development kits, usable for the development of smart sensors. After that, using a suitable combination of electronic components and microcontrollers, components are designed and implemented for our own smart home system, utilizing the Home Assistant platform. This incorporates a built-in redundancy, designed to withstand cases of a failure of any component. The developed tool uses container orchestration technology, real-time file synchronization and automatically configured database clusters, to achieve a unique and comprehensive solution to high availability of Home Assistant.
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Ways of achieving high availability with selected database systems
Tlustý, Jan ; Chlapek, Dušan (advisor) ; Kučera, Jan (referee)
The aim of this bachelor thesis is to define the term high availability and set criteria for evaluating availability and comparing technical ways of achieving thereof with selected open source database systems. In the first part of the thesis, two definitions of high availability are presented along with several reasons for implementing highly available solutions in business information systems. They are followed by the formula for calculating availability and several metrics which can be used to compare individual highly available configurations. In the following part, general features of the selected database systems are described regarding the possibility of implementing highly available configurations and specific highly available configurations are described and tested on virtual servers for the criteria specified earlier.
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Optimization of Distributed Network Flow Collector
Wrona, Jan ; Grégr, Matěj (referee) ; Žádník, Martin (advisor)
This thesis is focused on the optimization of distributed IP flow information collector. Nowadays, the centralized collector is a frequently used solution but is already reaching its performance limits in large scale and high-speed networks. The implementation of the distributed collector is in its early phase and it is necessary to look for solutions that will use it to its full potential. Therefore this thesis proposes a shared nothing architecture without a single point of failure. Using the above proposed architecture, the distributed collector is tolerant to the failure of at least one node. A distributed flow data analysis software, whose performance scales linearly with the number of nodes, is also part of this thesis.
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