Apache Tajo™: A big data warehouse system on Hadoop
Apache Tajo is a robust big data relational and distributed data warehouse system for Apache Hadoop. Tajo is designed for low-latency and scalable ad-hoc queries, online aggregation, and ETL (extract-transform-load process) on large-data sets stored on HDFS (Hadoop Distributed File System) and other data sources. By supporting SQL standards and leveraging advanced database techniques, Tajo allows direct control of distributed execution and data flow across a variety of query evaluation strategies and optimization opportunities.
Features
- Fast and Efficient
- Fully distributed SQL query processing engine
- Advanced query optimization such as cost-based and progressive query optimization
- Interactive analysis on reasonable data set
- Scalable
- Fault tolerance and dynamic scheduling for long-running queries
- Out-of-core algorithms for data sets larger than main memory
- Compatible
- ANSI/ISO SQL standard compliance
- Hive MetaStore access support
- JDBC driver support
- Various file formats support, such as CSV, JSON, RCFile, SequenceFile, ORC and Parquet
- Easy
- User-defined functions
- Interactive shell
- Convenient Backup/Restore utility
- Asynchronous/Synchronous Java API
News
- [2016年05月18日] Tajo 0.11.3 released.
- [2016年04月07日] Tajo 0.11.2 released.
- [2016年02月03日] Tajo 0.11.1 released.
- [2015年10月27日] Tajo 0.11.0 released.
- [2015年10月01日] Jihoon Son had a talk at Apache: Big Data Europe 2015 (Slide).
- [2015年09月19日] DaeMyung Kang was invited to a new committer.
- [2015年06月27日] Hyunsik Choi had a talk at Big Data Day LA 2015.
- [2015年06月17日] Hyunsik Choi had a talk at Hadoop Summit North America (Slide).
- [2014年12月05日] Hyoung Jun Kim was elected as a Tajo PMC member.
- [2014年12月05日] Jihun Kang was invited to a new committer.
- [2014年08月06日] Hyoung Jun Kim was invited to a new committer.
- [2014年06月14日] Hyunsik Choi had a talk at Big Data Camp LA 2014. (Slide)
- [2014年06月02日] Hyunsik Choi had a talk at Hadoop Summit North America 2014. (Slide)
- [2014年05月24日] Alvin Derek Henrick was invited to a new committer.
- [2014年04月01日] Keuntae Park presented the real usecases of Apache Tajo in ApacheCon North America 2014. (Video, Slide)
- [2014年04月01日] Min Zhou was invited to a new committer.
- [2014年03月24日] Apache Tajo became Apache Top-level Project.
- [2014年02月27日] Keuntae Park was invited to ApacheConf 2014 (schedule).
- [2014年01月02日] Keuntae Park was invited to become a new committer.
- [2013年11月20日] Tajo 0.2.0-incubating Released. Now available for download!
- [2013年10月15日] Tajo was presented at Bay Area Hadoop User Group - LinkedIn Special Event.
- [2013年10月15日] Tajo was introduced at Deview 2013.
- [2013年05月27日] Two projects were accepted to Google Summer of Code 2013.
- [2013年04月09日] Tajo was demonstrated at IEEE ICDE 2013.
- [2013年03月07日] Tajo Project enters incubation.
- [2012年10月15日] A demonstration paper of Tajo was accepted to IEEE ICDE 2013.