Showing posts with label Synchronous and Asynchronous Database Replication - An Application Framework. Show all posts
Showing posts with label Synchronous and Asynchronous Database Replication - An Application Framework. Show all posts

Wednesday, July 22, 2009

MySQL Clustering - Technology Summary

The demo framework not only showcases the MySQL capability but also demonstrates a variety of Sun Technologies and Industry Standard Interfaces.

The implementation has been modular so that the demo can be downsized but still the features can be demonstrated.

The various components that have been utilized are listed below -

  • Hardware: Intel Quad Core Desktop with 4GB RAM
  • Virtualization: Sun VirtualBox
  • Operating Systems: Windows Vista, Windows Server 2003, Fedora Linux, OpenSolaris
  • Database: MySQL
  • Web Servers: GlassFish and Internet Information Services
  • IDEs: NetBeans and Microsoft Visual Studio
  • Web Service Layer: Java API for XML Web Services
  • Front End GUI: Java Swing, HTML, JavaScript, Visual Web Java Server Faces, Java Micro Edition, C# and ASP.NET

Download the entire project here.

MySQL Clustering - Project Approach

As per the advice of Sun Team, the project has been implemented in a staggered model as outlined below with a use case that covered a Telephone Enterprise Customer Database wherein each Customer is uniquely identified by phone number (country code + phone number) -

Database Administration

This Phase covered the Hardware Setup, Operating System Setup, and Installation of MySQL. The major focus during this phase was to setup Replication features of MySQL using two different approaches - Asynchronous and Synchronous.

Both the replication approaches were implemented against two MySQL engines - InnoDB and MyISAM.

Implementation and comprehensive testing was performed at this stage which also covered failures of databases and scalability under the available hardware configuration.

Business Logic Development

This Phase covered the business logic requirement where the stress and focus was on standard database interfaces. The demo implemented Hibernate, an ORM model and JDBC to connect to MySQL database.

The connection to the database using these technologies is achieved through a Web Services layer. CRUD functionality has been implemented using Web Services.

Graphical User Interface Development

The focus of this phase is to demonstrate how an end-user application would interact with MySQL database using the Web Service Layer. The demo implemented various client-side GUIs in the form of front-end technologies like Java Swing, Visual Web Java Server Faces (JSF), Java Micro Edition and ASP.NET.

Exhaustive test cases have been written to demonstrate the functionality covering both success and failure situations.

MySQL Clustering - Project Design

Project Goals

The goal of the project is to provide a snapshot capability for three types of audience -

  • Database Administrators - Installation, Replication and Clustering of MySQL databases both in standalone and virtualized Operating System Environments covering Windows, Linux and Solaris
  • Business Logic Developers - CRUD (Create, Retrieve, Update, Delete) operations using Web Services to interact with the MySQL database adopting JDBC and Hibernate interfaces
  • Client Side GUI Developers - Provide sample codes to access and implement data management through above Web Services. The Client interfaces are diversified covering J2ME, JSF, Java Swing, and ASP.net to demonstrate the versatility of the seamless interface to MySQL database

Project Architecture

The project as depicted below implements the Model-View-Controller (MVC) architectural pattern, with the database layer representing the model, the business logic layer representing the controller and the font-end GUI representing the view.

Tuesday, July 21, 2009

MySQL Clustering - Project Backdrop

Industry Association Program

To provide students with an exposure to industry practices and work environment, Osmania University started the Industry Association Program (IAP), as a part of the curriculum, wherein the third year students are encouraged to work in a professional organization.

As a part of IAP, we (J. Kamala Ramya, K. Laxman Bharadwaj and me) had been assigned to Sun Microsystems Inc.

Organization Profile

Sun Microsystems Inc. is a multi-national vendor of several software and hardware products. The Headquarters of Sun Microsystems is at Santa Clara, California, United States. It has branches in several countries covering APAC, America and Europe.

Its contribution to the field of hardware has been marvelous, especially with the SPARC architecture.

Sun has several software products to its credit, which include Solaris, Star Office, VirtualBox, MySQL, etc. The most significant contribution of Sun Microsystems to the field of computers and electronics has been the "Java programming language", which is widely used in several devices, which include computers and mobile phones.

Sun is a big supporter of Open Systems and is one of the major contributors of Open Source Software.

Project Identification

Our initial interactions with Sun Team was to identity a task which would benefit Sun as an organization and for us to improve capability and be industry ready after our BE course.

After evaluating various product lines and discussions with Sun Team, a decision was made in concurrence with Sun Team to focus on a Demo Framework which would showcase MySQL capabilities and how it would interface with various layers in a typical application environment.

After the $1 billion acquisition of MySQL, Sun has been actively propagating the product to its clients. It was felt that a demo framework encompassing standard frontend interfaces, standard database interfaces and standard database functionality would help the clients to make a knowledgeable assessment of the product.

The demo suite proposed was expected to cover the replication features of MySQL to demonstrate how MySQL can fit in a complete commercial application involving various layers like - Databases, Business Logic and GUI.