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What is SolrCloud?(And how does it compare to master-slave?)SolrCloud is a set of new features and functionality added in Solr 4.0 to enable a new way... 阅读全文
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LBHttpSolrServer or "Load BalancedHttpSolrServer" is just a wrapper toCommonsHttpSolrServer. This is useful when you have multiple SolrServers and que... 阅读全文
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SolrServer实现类HttpSolrServerHttpSolrServer uses the Apache Commons HTTPClient to connect to solr.HttpSolrServer is thread-safe and if you are using the... 阅读全文
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“Hard commits are about durability, soft commits are about visibility“Transaction Logs首先介绍下solrcloud的index流程。1）update请求发送给任意节点（NodeA）。2）若该节点不是leader，将... 阅读全文
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ProblemDesign and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set.get(key)- Ge... 阅读全文
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SolrQuerySyntaxhttp://wiki.apache.org/solr/SolrQuerySyntaxsolr的处理方式：https://svn.apache.org/repos/asf/lucene/dev/trunk/solr/solrj/src/java/org/apache/s... 阅读全文
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原文地址http://wiki.apache.org/solr/DocValuesDocValues从Lucene4.2和Solr4.2开始加入，通过建立字段的正排索引，提升sorting, faceting, grouping, function queries等性能。介绍在Solr的配置文件(s... 阅读全文
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Facets with LucenePosted onAugust 1, 2014byPascal DimassimoinLatest ArticlesDuring the development of our latest product,Norconex Content Analytics, w... 阅读全文
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package com.fox.facet;/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file d... 阅读全文
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package com.fox.facet;import java.io.IOException;import java.util.ArrayList;import java.util.List;import org.apache.lucene.analysis.core.WhitespaceAna... 阅读全文
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package com.fox.facet;import java.io.File;import java.io.IOException;import java.util.ArrayList;import java.util.Arrays;import java.util.List;import o... 阅读全文
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http://tech.meituan.com/pinyin-suggest.html---------------------------------------------------------------------快照：问题背景搜索关键字智能提示是一个搜索应用的标配，主要作用是避免用户输入... 阅读全文
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结合网上的资料，抄袭了几张图，记录下。1.solrcloud-collection/shard/replica1.Replica、Leader是core的角色，在index、search的过程中作用不同。2.不同shard尽量分布在不同的solr节点上。solr上的core尽量分布“均匀”，确保负载... 阅读全文
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Whenever a commit happens in Solr, a new "searcher" (with new caches) is opened, "warmed" up according to yourSolrConfigXmlsettings, and then put in p... 阅读全文