Lucene 和 Solr 4.8 发布

jopen 10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：

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

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