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Application Research For Data Query Technology Based On NoSQL Framework

Posted on:2015-03-06Degree:MasterType:Thesis
Country:ChinaCandidate:X J WuFull Text:PDF
GTID:2298330467964791Subject:Computer system architecture
Abstract/Summary:PDF Full Text Request
Technology is developing as fast as the Information age, and the main channel for people tocommunicate, consumption or entertainment with each other is internet. More and more differentcontent and different forms of data emerge. Traditional relational database is no longer able to meetthe massive data storage and high-efficient query response needs. The increasing of cloudcomputing makes NoSQL technology came into being. In recent years, the research on NoSQLtechnology intensified. Data query technology based on NoSQL framework has became one of hotresearch. Most NoSQL databases have two main features, one is high availability and another isscalability, which can make efficient handling of data queries.This thesis focuses on the performance of NoSQL databases and the performance betweenNoSQL databases and relational database after studying the main NoSQL databases and their keytechnologies in the mainstream stage. This thesis also proposes a multiterm inverted indexmechanism based on MongoDB in conditions with a single inverted index query large bandwidthconsumption problem, which can reduce bandwidth validly.This thesis designs a four layers data query model on the basis of HBase and Hadoop platform.The data query model can finish the unify conversion process on flow supervise layer, and completemultiterm query on HBase by using secondary index on storage layer, moreover, set cachingmechanism on query layer to enhance the hitting ratio of hot query on query layer. This thesis alsogives a new model named Map-Trim-Reduce based on the Map/Reduce programming model, andthe experimental analysis shows that this model has better query property.
Keywords/Search Tags:NoSQL Database, Data Query Technology, Multiterm Inverted Index, Query Model, Top-k Query
PDF Full Text Request
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