发布于 2015-06-09 00:32:11 | 307 次阅读 | 评论: 0 | 来源: 网友投递
Apache Solr 企业级全文搜索引擎
Solr是一个独立的企业级搜索应用服务器,它对外提供类似于Web-service的API接口。用户可以通过http请求,向搜索引擎服务器提交一定格式的XML文件,生成索引;也可以通过Http Get操作提出查找请求,并得到XML格式的返回结果;
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.
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Solr是一个独立的企业级搜索应用服务器,它对外提供类似于Web-service的API接口。用户可以通过http请求,向搜索引擎服务器提交一定格式的XML文件,生成索引;也可以通过Http Get操作提出查找请求,并得到XML格式的返回结果;