Multi-tenant kernel for Cloud Computing

Multi-tenant kernel for Cloud Computing

The base of the platform forms a multi-tenant kernel, where all users share a
common codebase and physical infrastructure. The multiple tenants, who are hosted
on a shared server, share the resources under governor limits to prevent a single
instance monopolizing the resources. The custom code and data are separated by
software virtualization and users cannot access each other's code.

The multi-tenant kernel ensures that all instances are updated to the latest version
of the software simultaneously. The updates are applied automatically without any
patches or software download.


The multi-tenant architecture is already live for one million users. This helps
developers easily scale the applications from one to a million users with little or no
modification. The following image illustrates the multi-tenant architecture:

Traditional software systems are hosted on a single-tenant system, usually a

client-server based enterprise application. With the multi-tenant architecture, the

end-user does not have to worry about the hardware layer or software upgrade and

patches. The software system deployed over the Internet can be accessed using a

browser from any location possible, even wide ranges of mobile devices.

The multi-tenant architecture also allows the applications to be low cost, quick to

deploy, and open to innovation. Other examples of software using multi-tenant

architecture are webmail systems such as www.Gmail.com, www.Yahoo.com, and

online storage systems such as www.Dropbox.com, or note-taking applications such

as Evernote, Springpad, and so on.