Apache Solr 6.0.0 发布了，一些提升： * The deprecated <nrtMode> configuration in solrconfig.xml has been removed. Users must remove it from solrconfig.xml. * SolrClient.shutdown() has been removed, use SolrClient.close() instead. * The deprecated zkCredientialsProvider element in solrcloud section of solr.xml is now removed. Use the correct spelling (zkCredentialsProvider) instead. * Added support for executing Parallel SQL queries across SolrCloud collections. Includes StreamExpression support and a new JDBC Driver for the SQL Interface. * New features and capabilities added to the streaming API. * Added support for SELECT DISTINCT queries to the SQL interface. * New GraphQuery to enable graph traversal as a query operator. * New support for Cross Data Center Replication consisting of 下载地址：http://lucene.apache.org/solr/mirrors-solr-latest-redir.html Solr是一个高性能，采用Java开发，基于Lucene的全文搜索服务器。文档通过Http利用XML加到一个搜索集合中。查询该集合也是通过 http收到一个XML/JSON响应来实现。它的主要特性包括：高效、灵活的缓存功能，垂直搜索功能，高亮显示搜索结果，通过索引复制来提高可用性，提 供一套强大Data Schema来定义字段，类型和设置文本分析，提供基于Web的管理界面等。 Apache Solr 6.0.0 发布，Java 全文搜索引擎下载地址
