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Reliability at massive scale is one of the biggest challenges we face at Amazon.com, one of the largest e-commerce operations in the world; even the slightest outage has significant financial consequences and impacts customer trust. The Amazon.com platform, which provides services for many web sites worldwide, is implemented on top of an infrastructure of(More)
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Quantifiability is a concept in MapReduce Analytics based on the following two conditions: (a) a mapper should be cautious, that is, should not exclude any reducer's shuffle and sort strategy from consideration; and (b) a mapper should respect the reducers' shuffle and sort preferences, that is, should deem a reducer's shuffle and sort(More)
Access to the treasury of the Ottoman Empire is closely guarded. Only the Sultan knows the key to enter the treasure chamber in the Topkapi palace in Istanbul. But since the life of a Sultan is at danger sometimes, he asks his Grand Vizier to design a scheme for distributing knowledge of the key among the 27 Viziers. a) Either only the Grand Vizier together(More)
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