Apache Apex
Developer(s)Apache Software Foundation
Final release
3.7.0 / April 27, 2018; 5 years ago (2018-04-27)[1][2]
RepositoryApex Repository
Written inJava and Scala
Operating systemCross-platform
TypeStream processing, Batch processing
LicenseApache License 2.0
Websiteapex.apache.org Edit this at Wikidata

Apache Apex is a YARN-native platform that unifies stream and batch processing. It processes big data-in-motion in a way that is scalable, performant, fault-tolerant, stateful, secure, distributed, and easily operable.[3]

Apache Apex was named a top-level project by The Apache Software Foundation on April 25, 2016.[4][5] As of September 2019, it is no longer actively developed.[2]


Apache Apex is developed under the Apache License 2.0.[6] The project was driven by the San Jose, California-based start-up company DataTorrent.

There are two parts of Apache Apex: Apex Core and Apex Malhar. Apex Core is the platform or framework for building distributed applications on Hadoop. The core Apex platform is supplemented by Malhar, a library of connector and logic functions, enabling rapid application development. These input and output operators provide templates to sources and sinks such as Alluxio, S3, HDFS, NFS, FTP, Kafka, ActiveMQ, RabbitMQ, JMS, Cassandra, MongoDB, Redis, HBase, CouchDB, generic JDBC, and other database connectors.


DataTorrent has developed the platform since 2012 and then decided to open source the core that became Apache Apex.[7] It entered incubation in August 2015 and became Apache Software Foundation top level project within 8 months. DataTorrent itself shut down in May 2018.[8]

As of September 2019, Apache Apex is no longer being developed.[2]

Module Version Release date
Apex Core 3.7.0 27 April 2018
Apex Malhar 3.8.0 11 November 2017
Apex Core 3.6.0 5 May 2017
Apex Malhar 3.7.0 31 March 2017
Apex Core 3.5.0 12 December 2016
Apex Malhar 3.6.0 9 December 2016
Apex Malhar 3.5.0 3 September 2016
Apex Core and Malhar 3.4.0 5 May 2016

Apex Big Data World

Apex Big Data World [9] is a conference about Apache Apex. The first conference of Apex Big Data World took place in 2017. They were held in Pune, India and Mountain View, California, USA.


  1. ^ Apache Apex Downloads, retrieved 4 July 2019
  2. ^ a b c "Apache Apex - Apache Attic". Retrieved 2 December 2019.
  3. ^ "Apache Apex Web Page".
  4. ^ "Spark rival Apache Apex hits top-level status". siliconangle.com.
  5. ^ "The Apache Software Foundation Announces Apache Apex as a Top-Level Project". The Apache Software Foundation. 25 April 2016.
  6. ^ "Apache Apex Github Repos". GitHub.
  7. ^ "Apache Apex Is Promoted To Top-Level Project". informationweek.com. 27 April 2016.
  8. ^ "DataTorrent, Stream Processing Startup, Folds". 8 May 2018.
  9. ^ "Apex Big Data World". Archived from the original on 2017-04-04. Retrieved 2017-04-03.