Apache Solr 是一个开源的搜索服务器。Solr 使用 Java 语言开发,主要基于 HTTP 和 Apache Lucene 实现。 Apache Solr 6.4.2 主要组件版本: Apache Tika 1.13 Carrot2 3.15.0 Velocity 1.7 和 Velocity Tools 2.0 Apache UIMA 2.3.1 Apache ZooKeeper 3.4.6 Jetty 9.3.14.v20161028 Bug 修复: SOLR-10130, SOLR-10182: Serious performance degradation in Solr 6.4.1 due to the new metrics collection. Default settings in solrconfig.xml /config/indexConfig/metrics have been changed to turn off IndexWriter metrics collection. Directory level metrics collection has been completely removed until a better design is found. SOLR-10138: Transaction log replay can hit an NPE due to new Metrics code. SOLR-10083: Fix instanceof check in ConstDoubleSource.equals SOLR-10190: Fix NPE in CloudSolrClient when reading stale alias SOLR-10192: Fix copy/paste in solr-ltr pom.xml template. 下载地址: http://www.apache.org/dyn/closer.lua/lucene/solr/6.4.2 Apache Solr 6.4.2 发布,Java 全文搜索服务器下载地址