Dissertation > Excellent graduate degree dissertation topics show

Research of Distributed File System Dedicated to Massive E-Mails’Storage

Author: WangRuiZuo
Tutor: LiuBingQuan
School: Harbin Institute of Technology
Course: Computer Science and Technology
Keywords: Distributed File System Multi- the mail source system write support Fault tolerance Consistency Speed ??stability tests
CLC: TP393.098
Type: Master's thesis
Year: 2008
Downloads: 63
Quote: 0
Read: Download Dissertation

Abstract


With the rapid development of Internet technology and network users interact urgent need, e-mail is increasingly becoming an important way for people to office and communication, and the size of its data also showed a trend of rapid expansion. The traditional file systems is difficult to meet the performance requirements of mass data storage and read existing distributed file systems do not provide good support for mass mail storage, It is in this context that the mass-oriented e-mail distributed file system for storage. The distributed file system is to use the network to multiple machines constitute a virtual file system. This paper studies a distributed file system for mass mail storage, the outside has a strong fault tolerance, availability and scalability, it must have a high I / O performance. Is written directly for the mail special sources, the system must support a variety of data sources. To this end, this paper focuses on the following questions and so the system: First of all, according to the needs of the project file system in a reasonable analysis of the the already distributed architecture based on the design of the distributed file system architecture. According to the architecture, design and the various components of the system. Second, in writing and reading began to design a distributed file system internal algorithm, the introduction of read and write locks and leases. In the process of reading and writing data, the different components of the multi-strategy research systems load balancing. The block copy of redundancy as the core of the system fault-tolerant design of each component in the system, fault-tolerant solution. Again, different sources for e-mail, a general data source FTP, HTTP, FILE, dedicated e-mail source SMTP, IMAP and POP3 research public interface of multiple data sources and the public interface of the distributed file system write. In order to enhance the system's I / O performance and data integrity, and added to the file format of the stored compressed, and synchronization information. Finally, the distributed file system I / O performance test. In the case of a limited number of machines, in order to make the existing system I / O performance of the test results, on a larger fleet also established, the speed stability test. The test results of the writing speed higher than 20MB / s, and the readout speed of the test is about 40MB / s, the results of this test also proved that this system has very high I / O performance.

Related Dissertations

  1. Polarized-Light/Geomagnetism/GPS/SINS Integrated Navigation Algorithm,V249.328
  2. A Study on the Relationship between the Spirituality and Self-Consistency of College Students,B844.2
  3. The Criticism on S-O-R Model and the Research on Anticipation Effect,B841
  4. Refining Technology and Its Mechanism for Sack Paper,TS752
  5. The Research of Consistency between the Tests and the Curricular Standards,G633.3
  6. Research on Traceability and Incremental Consistency of the MDA Model Transformation,TP311.5
  7. High Efficiency 3D Video Representation and Coding,TN919.81
  8. Spatial Uncertainty in Stereo Visual Odometry,TP391.41
  9. Influence of Phosphor Settling on Optical Consistency of High-Power LED,TM923.04
  10. Security Risk Assessment and Vulnerability Analysis in Electrical Power System,TM711
  11. Weak consistency of distributed data maintenance strategy study,TP311.13
  12. In a distributed environment, Encrypting File System Design and Implementation,TP309.7
  13. Hadoop Distributed File System (HDFS) Study Reliability and Optimization,TP316.4
  14. Distributed File System centralized security management server design and implementation,TP316.4
  15. Design and Implementation of Mass Storage System`s Data Node,TP333
  16. Study on Metadata Management Strategy in Distributed File System,TP316.4
  17. Design and Implementation of Goods Trafficking Preventing Terminal Management System Based on Two-Dimentional Code,TP311.52
  18. The Study of the Data Fusion Technology in Multi-sensor Network,TN929.5;TP202
  19. Spatial Temporal Refinement on Depth Video Processing,TP391.41
  20. Multi-view 3D Reconstruction and Application Based on Depth Fusion and Surface Evolution,TP391.41
  21. On the Consistency of Teaching Conscious and Teaching Activity of Senior High Mathematic Teachers,G633.6

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > The application of computer network > E-mail ( E -mail )
© 2012 www.DissertationTopic.Net  Mobile