apachesolr-全文預覽
【正文】 ows tokens after each Analyzer stage ? Shows token matches for query vs index 24 25 Selling Points ? Fast ? Powerful amp。Apache Solr Yonik Seeley 29 June 2022 Dublin, Ireland 1 History ? Search for a replacement search platform ? mercial: high license fees ? opensource: no full solutions ? CNET grants code to Apache, Solr enters Incubator 17 Jan 2022 ? Solr is a Lucene subproject ? Users: CNET Reviews, CNET Channel, , , , , , 2 Lucene Refresher ?Lucene is a fulltext search library ?Add documents to an index via IndexWriter ? A document is a a collection of fields ? No config files, dynamic field typing ? Flexible text analysis – tokenizers, filters ?Search for documents via IndexSearcher Hits = search(Query,Filter,Sort,topN) ?Scoring: tf * idf * lengthNorm 3 What Is Solr ? A full text search server based on Lucene ? XML/HTTP Interfaces ? Loose Schema to define types and fields ? Web Administration Interface ? Extensive Caching ? Index Replication ? Extensible Open Architecture ? Written in Java5, deployable as a WAR 4 Solr Core Architecture Lucene Admin Interface Standard Request Handler Disjunction Max Request Handler Custom Request Handler Update Handler Caching XML Update Interface Config Analysis HTTP Request Servlet Concurrency Update Servlet XML Response Writer Replication Schema 5 Adding Documents HTTP POST to /update adddoc boost=“2” field name=“article”05991/field field name=“title”Apache Solr/field field name=“subject”An intro.../field field name=“category”s
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