Optimization & Implementation Of Multi-Tenant Mail System Which Based On Cloud Platform

With the rapid development of cloud computing,IaaS(infrastructure as a Service)and SaaS(Software as a Service)break traditional approach and become a new business model which can provide on-demand to use and on-demand to pay.SaaS service has become a new direction for current cloud service providers and IT Department.E-mail is a common communication tool in the office applications.After more than 30 years of development,E-mail not only can send text messages,but also send a variety of multimedia information.Today's E-mail becomes an efficient approach of communication,and the most widely used services on Internet.The core technology of SaaS is multi-tenant.SaaS,software as a service,is a new business model with the need to use,pay on demand characteristics.But in cloud computing,SaaS,multi-tenant new technology emerge,how to build their own cloud platform for SaaS applications,how to transform the existing applications to meet multi-tenant application's requirements.The concept of multi-tenant is the key of SaaS,that is,SaaS applications should be met the needs of multiple or multiple tenants' requirement.This thesis will be based on the current approach to give a different implementation path,as well as some of the key technologies to achieve the goal.The main contents of this thesis include:(1)The key technology of multi-tenant system,and give the solution on the how to build multi-tenant mail system on cloud environment.(2)The multi-tenant mail system is researched,matching the cloud platform,design and implementation of multi-tenant Email system,especially on key technical points,such as multi-tenant identification system,hybrid data storage,multi-tenant database index etc.(3)Base on system design,deploy and implement multi-tenant mail system one proper cloud platform.In the process of system design,the scalability,compatibility and reliability of the system are taken into account.Finally,through the performance test of the cloud platform and the function test of the multi-tenant mail system,the feasibility of the multi-tenant mail design based on the cloud platform is verified,and the conclusions and prospects are given.