By Suraj Gaurav, Suren Machiraju
Study what it takes to construct huge scale, undertaking severe purposes -hardened functions- at the Azure cloud platform. This 208 web page publication covers the options and engineering ideas that each architect and developer must be aware of to harden their Azure/.NET purposes to make sure greatest reliability and excessive availability whilst deployed at scale. whereas the recommendations are applied in .NET and optimized for Azure, the rules right here may also be important for clients of alternative cloud-based improvement systems. functions are available in various kinds, from uncomplicated apps that may be outfitted and deployed in hours to mega-scale apps that want considerably larger engineering rigor and strong firms to bring them. How do you construct such hugely scalable functions to maintain speed with site visitors calls for whereas consistently being ‘online' with 5 9's availability?
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Extra info for Hardening Azure Applications
Sample text
This results in your application being unavailable to its users. 2. Failure of a network switch within your rack in the data center also results in the 404 error—site not available. 3. Storage layer failure: cannot connect to database, back-end storage, and queues; results in failure to complete transaction. 4. Data corruption: due to a bug, the application has corrupted existing data. This too results in the non-availability of the application. The application needs to be prepared for the preceding scenarios and have contingencies and strategies to address these eventualities.
Failures can be either within the components or features—at the “micro” level—or at the overall service tier—the “macro” level. There are strategies to tackle both the macro and micro levels of disaster, and you as a developer should be considering both as you put together a well-constructed disaster recovery plan. , ISO/IEC 27031. info Chapter 3 ■ Hardened Cloud Applications A few examples of failures your hardened application has to deal with are elaborated next. All these have the same result—your application is unavailable for your users so they are unable to complete the business transaction.
Of course, higher latencies can be especially critical for applications in securities trading, online gaming, and VOIP. In the process of hardening, do make sure that you still have latency in mind, especially if your application has significant human interactivity on it, like a gaming application would have. As the earlier graphic indicates, the user expects the application to load in about five seconds. There have been scientific studies conducted that clearly indicate that response time directly impacts commerce and therefore the profitability of the business.