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Integracija povpraševanj nerelacijskih podatkovnih baz in doseganje visoke razpoložljivosti v računalniškem oblaku : magistrsko delo
ID ROJKO, MATEJ (Author), ID Jurič, Matjaž Branko (Mentor) More about this mentor... This link opens in a new window

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PID: 20.500.12556/rul/3b4445d5-1991-4704-bfd5-040e47d31541

Abstract
Nerelacijske podatkovne baze NoSQL (Not only SQL) v kombinaciji z računalništvom v oblaku ponujajo shranjevanje in upravljanje velikih količin podatkov. Povpraševanje po več različnih tipih nerelacijskih podatkovnih baz in razširljivost sistema prinašata velike izzive. Za rešitev integracije povpraševanja nad različnimi tipi podatkovnih baz je v magistrski nalogi implementiran pristop pretvorbe dokumentov v zapise RDF/XML in oglaševanje slednjih na končnih točkah. Z uporabo enotnega poizvedovalnega jezika SPARQL (SPARQL Protocol and RDF Query Language) smo prikazali način integracije povpraševanj nad dvema različnima vrstama nerelacijskih podatkovnih baz, MongoDB in Neo4j. Za hitrejše izvajanje operacij branja je v magistrski nalogi predlagana arhitektura z uporabo metode črepinjenja ter analiziran vpliv vertikalne oziroma horizontalne razširljivosti sistema. Na porazdeljeni sistem naprav smo shranjevali podatke in merili čas. Ugotovili smo, da metoda črepinjenja izboljša čas operacije branja, medtem ko se čas operacije pisanja z uporabo metode črepinjenja nekoliko poveča. Oba pristopa, integracijo povpraševanj in metodo črepinjena, smo prikazali na primeru.

Language:Slovenian
Keywords:NoSQL, SPARQL, vertikalna razširljivost, horizontalna razširljivost, replikacija, računalništvo, računalništvo in informatika, magisteriji
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FRI - Faculty of Computer and Information Science
Publisher:[M. Rojko]
Year:2015
Number of pages:102 str.
PID:20.500.12556/RUL-30500 This link opens in a new window
COBISS.SI-ID:1536201411 This link opens in a new window
Publication date in RUL:08.01.2015
Views:1822
Downloads:489
Metadata:XML DC-XML DC-RDF
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Secondary language

Language:English
Title:Query integration in non-relational databases and achieving high availability in the cloud
Abstract:
Non-relational databases NoSQL offer in combination with cloud computing abilities to store and manage large amounts of data. Querying over multiple NoSQL databases and system scalability can be major challenges. To solve the integration of queries over different types of NoSQL databases, we have implemented the approach of converting documents into RDF/XML formats and advertising them on the endpoint. By using common query language SPARQL (SPARQL Protocol and RDF Query Language), we have shown the method of query integration over two different types of non-relational NoSQL databases, MongoDB and Neo4j. To accelerate the execution of read operations, we have proposed an architecture using the sharding method. We have analyzed the impact of vertical or horizontal scalability of the system. We have stored data on distributed storage and measured the time. We have found out that the shrading method improves the read operations time, while the time for write operations slightly increases. We have demonstrated both approaches, query integration and shrading method, on an example.

Keywords:NoSQL, SPARQL, Vertical Scalability, Horizontal Scalability, Replication, computer science, computer and information science, master's degree

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