Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 24 for “"Distributed File System"”.
-
Adaptive caching in a distributed file system
Effective file system caching reduces local disk accesses and remote file server accesses significantly. Traditional file systems use fixed strategies to control caching. This thesis shows that a file system with adaptive caching achieves better performance than traditional file systems.
-
DecaFS: A Modular Distributed File System to Facilitate Distributed Systems Education
… factors encourage industry developers to build distributed systems and use distributed services. Software engineers are therefore exposed to distributed systems and services daily in the workplace. However, distributed computing is hard to teach in Computer Science courses due to the complexity …
-
Security Analysis and Framework of Cloud Computing with Parity-Based Partially Distributed File System
… security issues in cloud computing and propose a file distribution model as a possible solution to alleviate those security risks. It also shows the effectiveness of the new security model as compared with those currently being used. I present, a new file storage system with variable size chunks, …
-
Platforms for Teaching Distributed Computing Concepts to Undergraduate Students
… information technology has been moving towards distributed computing to host their applications and services. These systems can process more data more reliably than their central processing counterparts; however, distributed applications are more complex to design and develop because they …
-
Improving capacity-performance tradeoffs in the storage tier
… with these new techniques, large sequential file accesses. The trend toward bigger files exists to help amortize the cost of data accesses from the storage layer, as many workloads are recognized to be I/O bound. The storage layer is widely recognized as the slowest layer in the system. This …
-
Research on High-performance and Scalable Data Access in Parallel Big Data Computing
… many dedicated data-intensive storage systems such as Google File System(GFS), Hadoop Distributed File System(HDFS) and Quantcast File System(QFS) have been developed. Currently, the Hadoop Distributed File System(HDFS) [20] is the state-of-art and most popular open-source distributed …
-
P2PHDFS: AN IMPLEMENTATION OF STATISTIC MULTIPLEXED COMPUTING ARCHITECTURE IN HADOOP FILE SYSTEM
The Peer to Peer Hadoop Distributed File System (P2PHDFS) is designed to store and process extremely large-scale data sets reliably. This is a first attempt implementation of the Statistic Multiplexed Computing Architecture concept proposed by Dr. Shi for the existing Hadoop File System (HDFS) to …
-
The Design and Implementation of an Intelligent Agent-Based File System
… on LAN/WAN environments decrease, the demand for distributed services will continue to increase. In particular, the proliferation of user-level applications requiring high-capacity distributed file storage systems will demand that such services be universally available. At the same time, the …
-
Securing wide-area storage in WheelFS
WheelFS is a secure wide-area distributed file system that gives applications finegrained control over the various trade-offs inherent in wide-area storage. Because of the security risks of running a wide-area application on the public Internet, WheelFS aims to allow for secure operation in an …
-
Exploiting cost-performance tradeoffs for modern cloud systems
… is a fundamental challenge for modern cloud systems. This thesis explores cost-performance tradeoffs for three types of systems that permeate today's clouds, namely (1) storage, (2) virtualization, and (3) computation. A distributed key-value storage system must choose between the cost of …
-
The application of the Hadoop software framework in Bioinformatics programs
… 1) adopting the Hadoop MapReduce algorithms and distributed file system and 2) implementing the fully automated Hadoop programs into a user friendly graphical user interface (GUI). In addition, the researcher was also interested in investigating the advantages and limitations of applying the …
-
Big data storage workload characterization, modeling and synthetic generation
… to Big Data, for which next generation storage systems are being designed and implemented. As Big Data stresses the storage layer in new ways, a better understanding of these workloads and the availability of flexible workload generators are increasingly important to facilitate the proper design …
-
Flexible, wide-area storage for distributed systems using semantic cues
… This dissertation explores the use of a new file system (WheelFS) specifically designed to be the storage infrastructure for wide-area distributed services. WheelFS allows applications to adjust the semantics of their data via semantic cues, which provide application control over consistency, …
-
Efficient file distribution in a flexible,wide-area file system
WheelFS is a wide-area distributed file system designed to help applications cope with the challenges of sharing data over the wide-area network. A wide range of applications can use WheelFS as a storage layer because applications can control various trade-offs in WheelFS, such as consistency …
-
An Apache Hadoop Framework for Large-Scale Peptide Identification
… handle large peptide data sets. Development of distributed frameworks are needed to reduce the processing time, but this comes at the price of complexity in developing and executing them. In distributed computing, the program may divide into multiple parts to be executed. The work in this thesis …
-
Sharing the love : a generic socket API for Hadoop Mapreduce
… written in Java that performs data-intensive distributed computations on a cluster. It includes Hadoop MapReduce and the Hadoop Distributed File System (HDFS). HDFS has known scalability limitations due to its single NameNode which holds the entire file system namespace in RAM on one computer. …
-
A Semantic Approach for Automatic Recovery of Software Architecture
… on searching and reusing open source software systems. The limitation is primarily due to the lack of an automatic approach to recovering architecture models from source code. In particular, the increasing size of most open source systems makes it a challenge to manually recover the …
-
Exploiting Heterogeneity in Distributed Software Frameworks
… efficient, high-performance and scalable Distributed Software Frameworks (DSFs), such as MapReduce, Hadoop, Dryad, and Pregel, for supporting data-intensive scientific and enterprise applications on emerging heterogeneous compute, storage and network infrastructure. Large DSF deployments …
-
The Tessera D&R computational environment: Designed experiments for R-Hadoop performance and Bitcoin analysis
… parallel, so D&R can readily exploit distributed, parallel computational environments, such as our D&R computational environment, Tessera.^ In the first part of this dissertation, I present a study of the performance of the Tessera D&R computational environment through designed …
-
Distributed timing analysis
… runtimes, recent trends are driving the need of distributed timing analysis (DTA) in electronic design automation (EDA) tools. However, DTA has received little research attention so far and remains a critical problem. In this thesis, we introduce several methods to approach DTA problems. We …
Page 1 of 2