Remove 2005 Remove Data Security Remove Hadoop Remove Non-relational Database
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20 Best Open Source Big Data Projects to Contribute on GitHub

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DataFrames are used by Spark SQL to accommodate structured and semi-structured data. Apache Spark is also quite versatile, and it can run on a standalone cluster mode or Hadoop YARN , EC2, Mesos, Kubernetes, etc. The Apache CouchDB database was first released in 2005 by the Apache Software Foundation.