September 2012
Intermediate to advanced
182 pages
5h 12m
English
Content preview from Cloud Architecture PatternsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 8. Multitenancy and Commodity Hardware Primer
This primer introduces multitenancy and commodity hardware and explains why they are used by cloud platforms.
Cloud platforms are optimized for cost-efficiency. This optimization is partially driven by the high utilization of services running on cost-efficient hardware that manifests as multitenant services running on commodity hardware.
The decisions made in building the cloud platform also influence the applications that run on it. The impact to the application architecture of cloud-native applications manifests through horizontal scaling and handling failure.
Multitenancy
Multitenancy means there are multiple tenants sharing a system. Usually the system is a software application operated by one company, the host, for use by other companies, the tenants. Each tenant company has individual employees who access the software. All employees of a tenant company can be connected within the application while other tenants are invisible; this creates the illusion for each tenant that they are the only customers using the software.
Note
In a single tenant model, if an application needs a database, it gets its own instance. This simplifies capacity management (for individual applications), but at the expense of overall efficiency, as many database servers (and other types of servers) will be running with low overall utilization much of the time.
In the cloud, multitenant services are standard: data services, DNS services, hardware for virtual ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.