HBase Read A read against HBase must be reconciled between the HFiles, MemStore & BLOCKCACHE.The BlockCache is designed to keep frequently accessed…
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oozie
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Apache Pig Run Modes Apache Pig executes in two modes: Local Mode and MapReduce Mode. Local Mode It executes in a single…
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HBase Write When a write is made, by default, it goes into two places: write-ahead log (WAL), HLog, and in-memory write buffer,…
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Pig UDF (User Defined Functions) To specify custom processing, Pig provides support for user-defined functions (UDFs). Thus, Pig allows us to create…
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Hadoop Installation Environment required for Hadoop: The production environment of Hadoop is UNIX, but it can also be used in Windows using…
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Hadoop Tutorial Hadoop tutorial provides basic and advanced concepts of Hadoop. Our Hadoop tutorial is designed for beginners and professionals. Hadoop is…
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