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What is hadoop, hbase, hive and cassandra? Specify similarities and differences among them.
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Answer Posted / Dharmandra Datt Yadav
Hadoop, HBase, Hive, and Cassandra are all open-source big data technologies, but they have different focuses and use cases. Hadoop MapReduce is a framework for processing large datasets by dividing the work into smaller chunks, running them in parallel on different nodes, and then combining the results. HBase is a NoSQL database built on top of Hadoop that stores structured data and provides real-time read/write access to big data. Hive is a data warehousing system that provides SQL-like querying capabilities over large datasets stored in Hadoop. Cassandra, as mentioned earlier, is another NoSQL database designed for high scalability and availability.
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