By George Reese
Ebook offers an outstanding review of cloud architectures and most sensible practices, with a slant in the direction of architecting transactional web-based structures for safeguard, failure restoration, etc. Heavy emphasis on Amazon S3, EC2 and similar choices, so while you're considering deploying to Amazon's cloud, a very good evaluation. great brief publication at a hundred and fifty pages, effortless to learn in a number of settings. but when you're new to this house, a great evaluate does not must be one thousand pages to get you going. additionally encompasses a couple of appendices that describe Amazon APIs and different cloud ISPs comparable to Rackspace. i like to recommend this booklet while you are taking a look at a short assessment of architectures and dialogue of matters you must take into consideration to house protection, information integrity, charges, catastrophe restoration. Your collection of cloud supplier is probably not Amazon, yet those concerns must be thought of regardless.
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Additional info for Cloud Application Architectures: Building Applications and Infrastructure in the Cloud (Theory in Practice (O'Reilly))
Static IP Addresses Every time you launch a new instance in EC2, Amazon dynamically assigns it both public and private IP addresses. Later in this book, I will introduce techniques to minimize the need for static IP addresses, but the need can never be eliminated. For example, you almost certainly need a website to have a fixed IP address mapped by your DNS server. Amazon supports this need through elastic IP addresses. Com 39 A new Amazon account comes with the ability to create five elastic (static) IP addresses.
Even if you have the Python skills on staff, you still must contend with the fact that your Google App Engine application may only ever work well inside Google’s infrastructure. Infrastructure As a Service The focus of this book is the idea of IaaS. I spend a lot of time in this book using examples from the major player in this environment, Amazon Web Services. A number of significant AWS competitors exist who have different takes on the IaaS problem. These different approaches have key value propositions for different kinds of cloud customers.
If you are running a database engine on that volume, always, always, always shut down the database before unmounting the volume. As part of your system shutdown process, your instance should be cleanly unmounting volumes. If, however, you intend to detach a volume outside the normal shutdown process, you should first manually unmount it (and it wouldn’t hurt to sync it, too): $ umount /mnt/myvolume At that point, it is safe to detach the instance so that it can be available to a different instance: $ ec2-detach-volume vol-9a773124 -i i-a7d32cc3 ATTACHMENT vol-9a773124 i-a7d32cc3 /dev/sdh detaching 2008-10-20T18:55:17+0000 You can now attach the volume to another instance.