Software:Apache Trafodion

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Short description: Relational database management system for Apache Hadoop
Trafodion
Apache Trafodion logo.svg
Developer(s)Apache Software Foundation
Final release
2.4.0 / May 17, 2020; 4 years ago (2020-05-17)
Written inC++, Java
Operating systemLinux
TypeSQL-on-Hadoop DBMS
LicenseApache License 2.0
Website{{{1}}}

Apache Trafodion is an open-source Top-Level Project at the Apache Software Foundation. It was originally developed by the information technology division of Hewlett-Packard Company and HP Labs to provide the SQL query language on Apache HBase targeting big data transactional or operational workloads.[1] The project was named after the Welsh word for transactions.[1] As of April 2021, it is no longer actively developed.[2]

Features

Trafodion was a relational database management system that ran on Apache Hadoop,[3] providing support for transactional or operational workloads in a big data environment.[1] The following is a list of key features:

  • ANSI SQL language support[3]
  • JDBC and Open Database Connectivity (ODBC) connectivity for Linux and Windows clients[3]
  • Distributed ACID transaction protection across multiple statements, tables, and rows[3]
  • Compile-time and run-time optimizations for real-time operational workloads[3]
  • Support for large data sets using a parallel-aware query optimizer and a parallel data-flow execution engine[3]

Transaction management features include:

  • Begin, commit, and rollback work syntax, including SET TRANSACTION[3]
  • READ COMMITTED transactional isolation level[3]
  • Multiple SQL processes participating in the same transaction concurrently[3]
  • Recovery after region server, transaction manager, or node failure[3]
  • Support for region splits and balancing[3]

History

Trafodion was launched by HP as an open-source project on June 10, 2014.[4]

A version of Trafodion was released on January 29, 2015.[5]

Trafodion became an Apache Incubation Project in May 2015.[6]

Trafodion graduated from the Apache Incubator to become a Top-Level Project at the Apache Software Foundation in January 2018.[7]

See also

References

External links