Month: January 2010
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Hadoop Tutorial Series, Issue #4: To Use Or Not To Use A Combiner
Explains when Hadoop Combiners help (or hurt) performance and correctness, with code‑level guidance.
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Hadoop Tutorial Series, Issue #3: Counters In Action
Shows how to instrument MapReduce jobs with Hadoop Counters to track custom metrics during large‑scale processing.
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How To Build A Relevant Real Time Search Engine Prototype In Few Hundreds Lines Of Code
A hands‑on blueprint for a lightweight, low‑latency (toy) search engine that ingests and surfaces fresh content fast.