Welcome to Solr
Introduction
Solr is an open source enterprise search server based on the Lucene Java search library, with XML/HTTP and JSON APIs, hit highlighting, faceted search, caching, replication, and a web administration interface. It runs in a Java servlet container such as Tomcat.
See the complete feature list for more details, then check out the tutorial.
News
06 June 2007: Release 1.2 available
This is the first release since Solr graduated from the Incubator, bringing many new features, including CSV/delimited-text data loading, time based autocommit, faster faceting, negative filters, a spell-check handler, sounds-like word filters, regex text filters, and more flexible plugins.
See the release notes for more details.
17 January 2007: Solr graduates from Incubator
Solr has graduated from the Apache Incubator, and is now a sub-project of Lucene.
22 December 2006: Release 1.1.0 available
This is the first release since Solr joined the Incubator, and brings many new features and performance optimizations including highlighting, faceted search, and JSON/Python/Ruby response formats.
15 August 2006: Solr at ApacheCon US
Chris Hostetter will be presenting "Faceted Searching With Apache Solr" at ApacheCon US 2006, on October 13th at 4:30pm. See the ApacheCon website for more details.
21 April 2006: Solr at ApacheCon
Yonik Seeley will be presenting "Apache Solr, a Full-Text Search Server based on Lucene" at ApacheCon Europe 2006, on June 29th at 5:30pm. See the ApacheCon website for more details.
21 February 2006: nightly builds
Solr now has nightly builds. This automatically creates a downloadable version of Solr every night. All unit tests must pass, or a message is sent to the developers mailing list and no new version is created. This also updates the javadoc.
17 January 2006: Solr Joins Apache Incubator
Solr, a search server based on Lucene, has been accepted into the Apache Incubator. Solr was originally developed by CNET Networks, and is widely used within CNET to provide high relevancy search and faceted browsing capabilities.