This guide is for conferences that heavily feature software or technologies from the Apache Software Foundation. Some of these will be events organised by the ASF itself, but most will be externally organised ones featuring lots of Apache related projects, software, technologies or similar.
A one-day event and Hackathon from Apache Software Foundation @ PES Institute of Technology
30th March 2013
The Leading Apache Hadoop Community Conference
13th–14th June 2012
A D.C. area BarCamp focused on Open Source Software with an Apache influence.
19th May 2012
CamelOne is designed specifically for professionals using open source integration and messaging solutions in the enterprise.
15th–18th May 2012
The largest conference for the Apache Lucene/Solr open source search community!
7th–10th May 2012
How Netflix uses Cassandra with Adrian Cockcroft
6th March 2012
Europe's Premier Lucene and Solr User Conference
17th–20th October 2011
The largest conference dedicated to open source search
25th–26th May 2011
How Open Source Search Is Changing The World
23rd February 2011