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Integrating Hadoop by Jake Dolezal, William McKnight

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7 Apache Spark Cluster Computing with Hadoop

Advantages of Real-Time Computing

Real-time computing in information management represents data-driven decision making with a real-life time constraint; either the “freshness” of the data has an expiration date soon after acquisition, or a decision needs to be reached now and not a few days from now. Sometimes real-time responses from data are needed in a matter of hours, minutes, or even seconds. In these cases, performance is key; if data cannot be compiled and analyzed to guarantee a response within the specified timeframe, it cannot offer real-time computing and decision making capacity.

In terms of conventional data integration practices, improving performance involves batch processing data ...

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