DIS Final Project Proposal Content Express R 許坤進 R 余世傑 R 洪啓仁

2003/11/172 Outline  Overview of project  Technological infrastructure  Implementation phase  Project timeline

2003/11/173 Outline  Overview of project  Motivation and goals  Technological infrastructure  Implementation phase  Project timeline

2003/11/174 Motivation and Goals  Network and Information Explosion Era  Content Providers(ex: CNN.com)  Text articles and pictures  Real-time application bloom  Streaming video / audio  VOD(video on demand)

2003/11/175 Motivation and Goals (con’t)  Bandwidth build rate v.s. network traffic flow rate  Extending service provided makes server bear heavy load  Server is the bottleneck Content Deliver Internetworking (CDI) Content Deliver Network (CDN)

2003/11/176 Motivation and Goals (con’t)  Server Election  Location Transparency  Access Transparency  Failure Handling  Mutual Exclusion  Load Balancing  Security  Scability

2003/11/177 Outline  Overview of project  Technological infrastructure  Description & diagram  Rationale/justification  Implementation phase  Project timeline

2003/11/178 Topology Diagram - Original

2003/11/179 Topology Diagram - Ours

2003/11/1710 Rationale / Justification  Fault tolerance  Link failure  Server crash handling  Diminish backbone traffic  Load balancing  Remote Method Invocation (RMI)  Master Election  Mutual Exclusion  Security Concern

2003/11/1711 Outline  Overview of project  Technological infrastructure  Implementation phase  System requirement  Implementation  Testing  Project timeline

2003/11/1712 System Requirement  Platform  Windows  Development tools  J2SE – j2sdk1.4.2  Remote Method Invocation (RMI)  Java Media Framework (JMF)  Java Database Connectivity(JDBC)  Database  MySQL

2003/11/1713 System Working Flow Chart Start Leader Server Working Flow Leader Server Working Flow Peer Servers Working Flow Peer Servers Working Flow General Initialization Leader Election

2003/11/1714 Leader Server Initialization Wait For Request Find The Most Appropriate Peer Server Find The Most Appropriate Peer Server Forward The Request Server List Event Log DB Log Event

2003/11/1715 Peer Server Initialization Wait For Request Update Content Update Content Send Content To Client Send Content To Client Content DB Event Log DB Log Event

2003/11/1716 Testing  Link failure  System crash  Performance test

2003/11/1717 Scenario

2003/11/1718 Scenario

2003/11/1719 Outline  Overview of project  Technological infrastructure  Implementation phase  Project timeline

2003/11/1720 Project Timeline

The End~ Thanks for your attention!