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What is the relationship between Hadoop, HBase, Hive and Cassandra ?
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Answer / Dharmendra Choudhary
Hadoop, HBase, Hive, and Cassandra are all open-source projects under the Apache Software Foundation, but they serve different purposes. Hadoop is a distributed processing framework. HBase is a NoSQL database modeled after Google's Bigtable and runs on top of Hadoop. Hive provides data query and analysis using SQL. Cassandra is another NoSQL database, designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure.
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