lucene index "does not update

lucene index documents

Documents with the Lucene index Next, I will step by step to demonstrate how to use Lucene to index your document creation. As long as you can convert the files to be indexed text, Lucene can index documents for you. For example, if you want an HTML docum

Hibernate Search, Lucene

First of all, we need to be added to the configuration in the persistence.xml as follows: <! - Use a file system based index -> <property name="hibernate.search.default.directory_provider" value="org.hibernate.search.store.FSDirect

Lucene in Action (Simplified Chinese)

A total of 10 part of the first part of the Lucene core 1. Contact Lucene 2. Index 3. To add a search procedure 4. Analysis of 5. High-pole search technology 6. Extended Search application of the second part of the Lucene 7. Analysis of commonly used docu

Hibernate Search, Lucene and JBoss Seam

First, we need to add the relevant configuration in persistence.xml as follows: <!-- use a file system based index --> <property name="hibernate.search.default.directory_provider" value="org.hibernate.search.store.FSDirectoryProvider" /> <!

Lucene study conclude by 4: Lucene indexing process analysis (2)

3, the document by adding IndexWriter Code: writer.addDocument (doc); -> IndexWriter.addDocument (Document doc, Analyzer analyzer) -> doFlush = docWriter.addDocument (doc, analyzer); -> DocumentsWriter.updateDocument (Document, Analyzer, Term) No

Lucene: full-text search engine based on Java Introduction

Author: Che Dong Published on :2002-08-06 18:08 Last updated :2009-03-20 23:03 Copyright : You can willfully, reproduced hyperlink when you make sure to indicate the form of the article Original Source And author information and This statement . http://ww

To be a SQL query engine Lucene

Has recently learned about Lucene, and found it quite flexible and easy to use, in addition to concurrency control have to do some work themselves. However, the readability of Lucene's index data badly, unlike the database, easily find the client ...

Using the Apache Lucene text search

Introduction Lucene is an open source, highly scalable search engine library, you can get from the Apache Software Foundation. You can use Lucene for commercial and open source applications. Lucene powerful API focuses on text indexing and search. It can

Lucene 2.0.0 download and install and test

Download link: http://apache.mirror.phpchina.com/lucene/java/archive/ To select the lucene-2.0.0.zip download an example. 【Installation】 1, the local disk decompression lucene-2.0.0.zip file; 2, lucene-demos-2.0.0.jar lucene-core-2.0.0.jar and copied to t

Lucene: Java-based full-text search engine Introduction

Lucene is a Java-based full-text indexing tool kit. Based on Java full-text indexing engine, Lucene Description: About the Author and Lucene history of full-text search of realization: Luene full-text index and database index of more Chinese segmentation

How to improve and optimize the Lucene search speed (rpm)

Original Address Make sure you use the latest version of Lucene To make use of the local file system Remote file system in general will slow down your search. If the index must be located in a remote server, you can try to set the remote file system

The principle of multi-thread access Lucene and synchronization, locking mechanism

This article describes the lucene use of multi-threaded environment to achieve the principles and commit.lock and write.lock lock mechanism. Beginning of the design is to serve multi-threaded environment, in most cases is not indexed to a thread acce

Using the Apache Lucene search text (to)

Introduction Lucene is an open source, highly scalable search engine library, you can get from the Apache Software Foundation. You can use Lucene for commercial and open source applications. API focuses on the powerful Lucene text indexing and search. It

Lucene 3.0.2 Code Analysis

Continuously updated Document and Field IndexWriter IndexReader Lucenen achieved in the inverted IndexSearcher Analyzer Sort Filter Lucene's Ranking algorithm and improved 1. Document and Field Document and Field in the index creation process is

Lucene accelerated the search speed ImproveSearchingSpeed (b)

This is a simple translation, original in: http://wiki.apache.org/lucene-java/ImproveSearchingSpeed Transfer from: http://blog.fulin.org/2009/06/improvesearchingspeed.html * Be sure you really need to speed things up. Many of the ideas here are simpl

Lucene 3.0 and change the simple analytical

I. Overview Lucene3.0 (hereinafter referred to as 3.0) was released 2009-11-25, version 3.0 is a major, significant change. In the API to do a lot of adjustments, have been removed prior to waste a lot of methods and classes, and supports a lot of Ja

Discussion on the Lucene

Classified as [lucene] article Lucene how paging, how to display from 1 to 10, or from 11 to 20 results? How to write a Lucene analyzer? How to update a Lucene or group of documents have been indexed? Under the optimized Lucene index if you do not delete

Introduction and how to use Lucene?

Lucene is a Java-based toolkit full-text index. The full text index engine based on Lucene Java Introduction: On the history of the author and Lucene Full text search implementation: Luene full-text index and database comparison of the index Chinese word

Using the Apache Lucene search text (turn)

Introduction Lucene is an open source, highly scalable search engine library, you can get from the Apache Software Foundation. You can use Lucene for commercial and open source applications. Lucene's API is a powerful text indexing and searching atten

How to store the index solr

I found that has been misunderstood, I always thought the distributed indexing and distributed search are two different things, in fact, is the same. The index is distributed across multiple computers, not that just a distributed search? Since the in

Lucene study conclude by 4: Lucene indexing process analysis (4)

6, close the IndexWriter object Code: writer.close (); -> IndexWriter.closeInternal (boolean) - "(1) to index information from the memory is written to disk: flush (waitForMerges, true, true); - "(2) in paragraph merge: mergeScheduler.merge (

Lucene's indexing

Lucene can email, web pages, text data, doc, pdf sort of indexing documents, in the time of indexing can be handled for subsequent sorting to do. But it will run into a distributed environment, the need to consider the performance of indexing issues, ...

Index - Introduction

The basic content of this chapter is as follows Conceptual index models The basic operation of the index When the index to improve the document (Document) and field (Field) weight Index date, number and sort search results field (Field) Understanding ...

Details of the use and optimization of Xiangjie lucene.lucene.NET

1 lucene Introduction 1.1 What is lucene Lucene is a full-text search framework, rather than applications. So it does not like www.baidu.com or google Desktop can then be used to use, it only provides a tool for you to achieve these products. 1.2 lucene c

[Lucene3.0 the first glimpse of] the index to create (2): DocumentWriter Process

The then "create an index (1): IndexWriter indexer" 1.3 Index creation DocumentsWriter call to charge by the IndexWriter index multiple document the core classes, but the whole indexing process is not accomplished by an object. But composed of a

[Lucene3.0 the first glimpse of] the index to create (2): DocumentWriter Process 1

The then "create an index (1): IndexWriter indexer" 1.3 Index creation DocumentsWriter call to charge by the IndexWriter index multiple document the core classes, but the whole indexing process is not accomplished by an object. But composed ...

Lucene / Solr development experience

1, opening words 2 Overview 3, origin 4, first met Solr 5, Solr installation 6, Solr word order 7, Solr an example of Chinese language 8, Solr search operator [Opening words] the practice should write a technical paper, and the combination of Lucene / Sol

lucene issue of the development process summary

1, issue: Index which currently has more than 1000 million of data, and now need to get increments every few minutes to add new content to index. However, I found that new entrants to the index, the entire index structure should be readjusted. Very t

Lucene Study Notes (2)

If you want to quickly check your disk files, or check e-mail, Web pages, and even check the data stored in the database, you can be done by means of Lucene. However, to complete the inquiry must first create the index. First, from the Lucene API sta

Using Lucene to create the idea of web search engine

1. Why use Lucene, instead of directly from the database search records? Mainly on account of several factors: (1) performance issues, Lucene is based on the document index search mechanism, retrieval performance faster than the database, especially

Lucene / Solr development experience [Reserved]

Lucene / Solr development experience [Reserved] Reprinted: Zhang Chi Wealth http://www.jinsehupan.com/blog/?p=25 Thank him for his presentation. 1, opening words 2 Overview 3, origin 4, first met Solr 5, Solr installation 6, Solr word order 7, Solr an exa

Database Index Analysis

From the following types of cases to find a certain character: A bunch of Chinese characters A phonetic dictionary directory A radical dictionary directory Solution: One by one looking straight up Pinyin table according to the order of search, pinyin tabl

apache lucene structure and main classes

Apache lucene provides functionality can be viewed as general information into the index for some, and then search the data based on search terms in some of the content. Among the class is divided into two kinds of construction index and search. Firs

Lucene indexing library design split size

Original: http://tangfl.yo2.cn/ Lucene indexing library design split size TangFulin <tangfulin#gmail.com> A. Index Writer: 1. IndexRebuilder only an index rebuild, replace IndexUpdater after the completion of a large library, replace the small

Nutch 1.0 source code analysis (5): Index

After part of the index into the blog has been forgotten up, make up today. Indexing this part of the operation is relatively simple, the application provides the interface Lucene indexing functions. Following links to web database and update the dat

lucene + hadoop operating framework of distributed search

lucene + hadoop operating framework Nut 1.0a8 Distributed Search [Url] http://code.google.com/p/nutla/ [/ url] Nut development environment to build (virtual machine under the hadoop0.20.2 + zookeeper3.3.1 + hbase0.20.6 development environment to buil

Issues related to Lucene (Collection) Email

Issues related to Lucene (1): Why can search for the "Republic of China AND" search is not "Chinese Republic?" Issues related to Lucene (2): stemming and lemmatization Issues related to Lucene (3): Lucene's vector space model

Massive data processing feature (8) - inverted index (the cornerstone of search engine)

Introduction: In today's information explosion, with the help of search engines, allows us to quickly and easily find the request. That the search engine, you have to say VSM model, said VSM, will have to talk inverted index. It is no exaggeratio

Development of clusters based on the Nutch Search Engine

Document options <script type="text/javascript"> </ script> Print this page <noscript> </ noscript> <! - START RESERVED FOR FUTURE USE INCLUDE FILES - ><!-- this content will be automatically generated across all

Open Source Search Engine

Open source search engine for people to learn, study and master the search technology provides an excellent way to and material to promote the popularization and development of search technology, so that more and more people began to understand and promot

Apache Solr junior tutorial (introduced. Deployments. Java interface. Chinese word)

Apache Solr Introduction Solr What is this? Solr is an open source enterprise search server, easy to extend and modify the underlying use of Java. Server communication using standard HTTP and XML, so if you are using Solr will be useful to understand Java

nutch installation, use, the second starter (switch)

Keywords: cygwin nutch installation 1.1 Nutch Installation Reference: http://www.blogjava.net/dev2dev/archive/2006/02/01/29415.aspx Nutch on Windows, install the smallest solution As the built-in script commands to run Nutch needs Linux environment, so yo

solrconfig Commentary

solrconfig.xml file contains most of the parameters used to configure Solr itself.

Compass --- Search Engine (2)

4 Query Analyzer By default, Compass uses its own query parser based on Lucene. Compass allows configure multiple Query Analyzer (with the registered name of the search), or you can override the default Compass Query Analyzer (registered with the default

Commonly used open source search engine tools - not easy to say love you

The following personal order, of course, not all are of the End. Some just interested in it. elasticsearch: cloud-based computing is a distributed search engine. Includes the following features: 1. Distributed, highly available search engines 2. To suppor

LucenceSE design options

Need to have two design options Simplification of the Storage Engine, using a RPC mechanism (eg ICE) to write the Lucene Java call another service Advantages: Highly scalable, assuming RPC mechanism using ICE implementation, scalability has been achi ...

On the search for a summary of the development process

1, I want to index file is not corrupted because the file is not closed, but the index is updated when the program was interrupted, leading to incomplete documentation, will result in a damaged index file problem - not normally turned off for IndexWr

Nutch Crawler workflow and detailed analysis of file formats

Nutch is divided into two parts: the crawler crawler and query searcher. Crawler is mainly used to grab pages from the network and for those pages indexed. Searcher main advantage of these indexes retrieve the user's search keywords to generate s

Implementation of real-time retrieval system Zoie [change]

Real-time retrieval of the core principles of the usual retrieval system, building the index and the query is separate from the construction of the index that is offline, the new index will be a certain frequency (eg every 5 minutes) for the query-si

Zoie achieve real-time retrieval system of [transfer]

The core principle of real-time search the usual retrieval system, construction of the index and query is separate from the construction of an index that is offline, the new index will be a certain frequency (eg every 5 minutes) for the query-side us
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