Pig Data Types Apache Pig supports many data types. A list of Apache Pig Data Types with description and examples are given…
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spark
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HBase MemStore The MemStore is a write buffer where HBase accumulates data in memory before a permanent write. Its contents are flushed…
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Pig Latin The Pig Latin is a data flow language used by Apache Pig to analyze the data in Hadoop. It is…
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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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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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HBase Tutorial HBase tutorial provides basic and advanced concepts of HBase. Our HBase tutorial is designed for beginners and professionals. Hbase is…
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Sqoop Export In previous cases, flow of data was from RDBMs to HDFS. Using “export” tool, we can import data from HDFS…
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What is HDFS Hadoop comes with a distributed file system called HDFS. In HDFS data is distributed over several machines and replicated…