Java搜索引擎,Nutch v1.6 发布

jopen 9年前

Nutch 致力于让每个人能很容易, 同时花费很少就可以配置世界一流的Web搜索引擎. 为了完成这一宏伟的目标, Nutch必须能够做到:
         每个月取几十亿网页
        
为这些网页维护一个索引
         对索引文件进行每秒上千次的搜索
        
提供高质量的搜索结果
        组成
        爬虫crawler和查询searcher。Crawler主要用于从网络上抓取网页并为这些网页建立索引。Searcher主要利用这些索引检索用户的查找关键词来产生查找结果。两者之间的接口是索引,所以除去索引部分,两者之间的耦合度很低。
        Crawler和Searcher两部分尽量分开的目的主要是为了使两部分可以分布式配置在硬件平台上,例如将Crawler和Searcher分别放在两个主机上,这样可以提升性能。
Java搜索引擎,Nutch v1.6 发布

2012年12月6号 - Apache Nutch v1.6 发布

The Apache Nutch PMC are extremely pleased to announce the release of Apache Nutch v1.6. This release includes over 20 bug fixes, the same in improvements, as well as new functionalities including a new HostNormalizer, the ability to dynamically set fetchInterval by MIME-type and functional enhancements to the Indexer API inluding the normalization of URL's and the deletion of robots noIndex documents. Other notable improvements include the upgrade of key dependencies to Tika 1.2 and Automaton 1.11-8. Please see the list of changes or the release report made in this version for a full breakdown. The release is available here.