Solr 5.2.0 发布,值得关注的改进如下: Restore API allows restoring a core from an index backup. JSON Facet API unique() is now implemented for numeric and date fields Optional flatter form via a "type" parameter Added support for "mincount" parameter in range facets to suppress buckets less than that count Multi-select faceting support for the Facet Module via the "excludeTags" parameter which disregards any matching tagged filters for that facet. hll() facet function for distributed cardinality via HyperLogLog algorithm. See examples at http://yonik.com/solr-count-distinct/ A new "facet.range.method" parameter to let users choose how to do range faceting between an implementation based on filters (previous algorithm, using "facet.range.method=filter") or DocValues ("facet.range.method=dv") Rule-based Replica assignment during collection, shard, and replica creation. 更多内容请查看发行页面。 该版本下载请看这里。 Solr 5.2.0 发布,全文搜索服务器下载地址