新闻 Apache Lucene 4.10.3 发布，文本搜索引擎库 下载

Apache Lucene 4.10.3 发布，它是一个高性能的全 java 编写的文本搜索引擎库。几乎适用于所有需要全文搜索的应用程序。此版本中主要修复了 12 个 Bug。

Bug 修复：

1. 
   LUCENE-6019, LUCENE-6117: Remove -Dtests.assert to make IndexWriter infoStream sane.
   (Robert Muir, Mike McCandless)
   
   
2. 
   LUCENE-6161: Resolving deletes was failing to reuse DocsEnum likely causing substantial performance cost for use cases that frequently delete old documents
   (Mike McCandless)
   
   
3. 
   LUCENE-6192: Fix int overflow corruption case in skip data for high frequency terms in extremely large indices
   (Robert Muir, Mike McCandless)
   
   
4. 
   LUCENE-6207: Fixed consumption of several terms enums on the same sorted (set) doc values instance at the same time.
   (Tom Shally, Robert Muir, Adrien Grand)
   
   
5. 
   LUCENE-6093: Don't throw NullPointerException from BlendedInfixSuggester for lookups that do not end in a prefix token.
   (jane chang via Mike McCandless)
   
   
6. 
   LUCENE-6279: Don't let an abusive leftover _N_upgraded.si in the index directory cause index corruption on upgrade
   (Robert Muir, Mike McCandless)
   
   
7. 
   LUCENE-6287: Fix concurrency bug in IndexWriter that could cause index corruption (missing _N.si files) the first time 4.x kisses a 3.x index if merges are also running.
   (Simon Willnauer, Mike McCandless)
   
   
8. 
   LUCENE-6205: Fixed intermittent concurrency issue that could cause FileNotFoundException when writing doc values updates at the same time that a merge kicks off.
   (Mike McCandless)
   
   
9. 
   LUCENE-6214: Fixed IndexWriter deadlock when one thread is committing while another opens a near-real-time reader and an unrecoverable (tragic) exception is hit.
   (Simon Willnauer, Mike McCandless)
   
   
10. 
    LUCENE-6105: Don't cache FST root arcs if the number of root arcs is small, or if the cache would be > 20% of the size of the FST.
    (Robert Muir, Mike McCandless)
    
    
11. 
    LUCENE-6001: DrillSideways hits NullPointerException for certain BooleanQuery searches.
    (Dragan Jotannovic, jane chang via Mike McCandless)
    
    
12. 
    LUCENE-6306: Merging of doc values and norms now checks whether the merge was aborted so IndexWriter.rollback can more promptly abort a running merge.
    (Robert Muir, Mike McCandless)
    

更多详情内容请见发行页面。

本版本已提供下载：

http://lucene.apache.org/core/mirrors-core-latest-redir.html
Apache Lucene 4.10.3 发布，文本搜索引擎库下载地址