Article · Wikipedia archive · Last revised Jun 23, 2026

Mondrian OLAP server

Mondrian is an open source OLAP server, written in Java. It supports the MDX (multidimensional expressions) query language, as well as the XML for Analysis and olap4j interface specifications. It reads from SQL and other data sources and aggregates data in a memory cache.

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Jun 23, 2026
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Mondrian OLAP Server
DeveloperPentaho Corporation
Stable release
3.14.0 / May 17, 2017 (2017-05-17)
PlatformJava
TypeOLAP Server
LicenseEPL
Websitemondrian.pentaho.com/documentation/index.php
Repository

Mondrian is an open source OLAP (online analytical processing) server, written in Java. It supports the MDX (multidimensional expressions) query language,1 as well as the XML for Analysis and olap4j interface specifications. It reads from SQL and other data sources and aggregates data in a memory cache.

Mondrian is a relational OLAP.2

History

The first public release of Mondrian was on August 9, 2002.

It was acquired by Pentaho in 2005,2 and was integrated in Pentaho's Business intelligence software, with several major updates in 2007.3

See also

See also

References

References

  1. Zhu, Guangxin; Chen, Haiyang; Xu, Mingjie; Yu, Jun; Ling, Yang; Wang, Lin; Mei, Zhu (2018-12-13). "Research and Implementation of OLAP System Based on Cloud Computing Platform". IOP Conference Series: Materials Science and Engineering. 452 042126. doi:10.1088/1757-899X/452/4/042126. ISSN 1757-899X.
  2. Sendín-Raña, Pablo; González-Castaño, Francisco J.; Pérez-Barros, Enrique; Rodríguez-Hernández, Pedro S.; Gil-Castiñeira, Felipe; Pousada-Carballo, José M. (2009). "Improving the performance and functionality of Mondrian open-source OLAP systems". Software: Practice and Experience. 39 (3): 279–298. doi:10.1002/spe.899. ISSN 1097-024X.
  3. "Pentaho revs up Mondrian OLAP". Tech Monitor. 2007-09-05. Retrieved 2025-07-14.
Further reading

Further reading