Lucene 和 Solr 4.8 发布

jopen 9年前

这次发布是Lucene要求JDK 7支持的第一个版本

以下是一些与 4.7.2版本相比的变化:

Lucene

  • First version of Lucene requiring JDK 1.7
  • New index format stores checksums for each file and can check them during merges
  • HunspellStemFilter uses 10 to 100x less memory and can open OpenOffice dictionaries without errors
  • Rescorer API was added to allow recalculating score for documents using more complicated functions
  • NativeFSLockFactory bug was fixed that allowed multiple IndexWriter instances obtain a lock
  • Multiple bug fixes and improvements since Lucene 4.7.2

Solr

  • Expand component was introduced – it allows to expand collapsing and block-join relationships
  • Added ADDREPLICA command to CollectionsAPI to allow easy replica creation
  • Complex phrase queries were added to Solr
  • <fields> and <types> tags in schema.xml are not mandatory anymore
  • REST API was added for synonyms and stopwords
  • Optimizations and bugfixes from Lucene 4.8

Lucene详细变化列表请查看: http://wiki.apache.org/lucene-java/ReleaseNote48.
Solr 4.8 细变化列表请查看: http://wiki.apache.org/solr/ReleaseNote48.

Apache Lucene 4.8 下载地址: http://www.apache.org/dyn/closer.cgi/lucene/java/.
Apache Solr 4.8 c下载地址: http://www.apache.org/dyn/closer.cgi/lucene/solr/.