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Learning AWS - Second Edition by Amit Shah, Aurobindo Sarkar

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Testing disaster recovery strategy

It is imperative to thoroughly test your recovery strategy end to end to ensure that it works and to iron out any kinks in the processes. However, testing for failures is hard, especially for sites or applications with very high request loads or complex functionality. Such web-scale applications usually comprise massive and rapidly changing datasets, complex interactions and request patterns, asynchronous requests, and a high degree of concurrency. Simulating complete and partial failures in such scenarios is a big challenge. At the same time, it is even more critical to regularly inject failures into such applications, under well-controlled circumstances, to ensure high availability for your end customers. ...

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