Download Cloud Application Architectures: Building Applications and by George Reese PDF

By George Reese

Publication presents an outstanding review of cloud architectures and most sensible practices, with a slant in the direction of architecting transactional web-based platforms for defense, failure restoration, and so forth. Heavy emphasis on Amazon S3, EC2 and similar choices, so while you're inquisitive about deploying to Amazon's cloud, a great evaluation. great brief ebook at one hundred fifty pages, effortless to learn in a couple of settings. but when you're new to this area, a great evaluate does not have to be one thousand pages to get you going. additionally includes a couple of appendices that describe Amazon APIs and different cloud ISPs reminiscent of Rackspace. i like to recommend this booklet while you're taking a look at a short evaluate of architectures and dialogue of concerns you must take into consideration to accommodate defense, information integrity, expenses, catastrophe restoration. Your collection of cloud supplier is probably not Amazon, yet those matters must be thought of regardless.

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Extra info for Cloud Application Architectures: Building Applications and Infrastructure in the Cloud (Theory in Practice (O'Reilly))

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AppNexus represents a different approach to this problem. As with AWS, AppNexus enables you to gain access to servers on demand. AppNexus, however, provides dedicated servers with virtualization on top. You have the confidence in knowing that your applications are not fighting with anyone else for resources and that you can meet any requirements that demand full control over all physical server resources. Hybrid computing takes advantage of both worlds, offering virtualization where appropriate and dedicated hardware where appropriate.

You cannot take your EBS snapshots out of the Amazon cloud. Even if you could, you wouldn’t be able to make use of them. In Chapter 6, I cover approaches to taking advantage of EBS snapshotting while developing a portable backup strategy. Create a snapshot using the ec2-create-snapshot command. Before you create a snapshot, however, you will want to make sure the volume you are snapshotting is in a consistent state. In other words, you likely need to stop any write operations on the volume. How you do this depends on the applications writing to the volume.

To leverage Google App Engine, you write your applications in Python against Google’s development frameworks with tools for using the Google filesystem and data repositories. This approach works well for applications that must be deployed rapidly and don’t have significant integration requirements. The downside to the PaaS approach is vendor lock-in. With Google, for example, you must write your applications in the Python programming language to Google-specific APIs. Com 17 Python is a wonderful programming language—in fact, my favorite—but it isn’t a core competency of most development teams.

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