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BigData - Interview Questions and Answers for 'Big data' - 4 question(s) found - Order By Rating | ||||
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Ans. Load the file in chunks and then process. If we need to do analytic, we can process analytic information for those chunks and then reprocess the processed information from each chunk. For example - we need to average all marks in the file. We can divide the file and load into 5 chunks and calculate average for each chunk. Then we can collect averages for all 5 chunks and then calculate the final average. | ||||
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Ans. A Sequence File contains a binary encoding of an arbitrary number key-value pairs. Each key must be the same type. Each value must be of same type. | ||||
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Ans. One key and associated values. | ||||
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Ans. Java | ||||
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