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2. Apache Cassandra - Wikipedia

   en.wikipedia.org/wiki/Apache_Cassandra

   Apache Cassandra is a free and open-source database management system designed to handle large volumes of data across multiple commodity servers.The system prioritizes availability and scalability over consistency, making it particularly suited for systems with high write throughput requirements due to its LSM tree indexing storage layer. [2]

3. Apache HBase - Wikipedia

   en.wikipedia.org/wiki/Apache_HBase

   HBase is an open-source non-relational distributed database modeled after Google's Bigtable and written in Java.It is developed as part of Apache Software Foundation's Apache Hadoop project and runs on top of HDFS (Hadoop Distributed File System) or Alluxio, providing Bigtable-like capabilities for Hadoop.

4. Trino (SQL query engine) - Wikipedia

   en.wikipedia.org/wiki/Trino_(SQL_query_engine)

   Trino is an open-source distributed SQL query engine designed to query large data sets distributed over one or more heterogeneous data sources. [1] Trino can query data lakes that contain a variety of file formats such as simple row-oriented CSV and JSON data files to more performant open column-oriented data file formats like ORC or Parquet [2] [3] residing on different storage systems like ...

5. DuckDB - Wikipedia

   en.wikipedia.org/wiki/DuckDB

   DuckDB is an open-source column-oriented relational database management system (RDBMS). [1] It is designed to provide high performance on complex queries against large databases in embedded configuration, [ 2 ] such as combining tables with hundreds of columns and billions of rows.

6. Greenplum - Wikipedia

   en.wikipedia.org/wiki/Greenplum

   Greenplum is a big data technology based on MPP architecture and the Postgres open source database technology. The technology was created by a company of the same name headquartered in San Mateo, California around 2005.

7. Apache Hadoop - Wikipedia

   en.wikipedia.org/wiki/Apache_Hadoop

   Apache Hadoop (/ h ə ˈ d uː p /) is a collection of open-source software utilities for reliable, scalable, distributed computing.It provides a software framework for distributed storage and processing of big data using the MapReduce programming model.