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Apache Lucene and Solr 4.2

· Big Data Zone

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Today Apache Lucene and Solr PMC announced another version of Apache Lucene library and Apache Solr search server numbred 4.2. This is a next release continuing the 4th version of both Apache Lucene and Apache Solr.

Here are some of the changes that were made comparing to the 4.1 version:


  • New, default codec with default term vectors compression and more efficient DocValues format
  • Refactoring and performance improvement to faceting module
  • FST structure now supports data in size above 2GB


  • API for index structure allowing for schema.xml elements fetching
  • DocValues support
  • Collections aliasing
  • Custom node names for SolrCloud deployments
  • Enchantments that comes with Apache Lucene 4.2

Full changes list for Lucene can be found at http://wiki.apache.org/lucene-java/ReleaseNote42. Full list of changes in Solr 4.2 can be found at: http://wiki.apache.org/solr/ReleaseNote41.

Apache Lucene 4.2 library can be downloaded from the following address: http://www.apache.org/dyn/closer.cgi/lucene/java/. Apache Solr 4.2 can be downloaded at the following URL address: http://www.apache.org/dyn/closer.cgi/lucene/solr/. Please remember that the mirrors are just starting to update so not all of them will contain the 4.2 version of Lucene and Solr.

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Published at DZone with permission of Rafał Kuć, DZone MVB. See the original article here.

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