elasticsearch nested

Elasticsearch is a Lucene-based search server. It provides a distributed multi-user-capable full-text search engine, based on a restful web interface. Elasticsearch is a popular enterprise-class search engine developed in Java and published as an open source under the Apache license terms. Designed for cloud computing, it can achieve real-time search, stable, reliable, fast, easy to install and use.We build

A period of time for the company based on Elasticsearch (hereinafter referred to as ES) to do a set of search platform, the following will accumulate some of the knowledge to share with you, if there is wrong, welcome a lot of criticism and suggestions. For Elasticsearch because things are still more, I will make a series. Here is the directory for this system:Environment preparationThis series of articles

Windows environment to build Elasticsearch 5.* need JDK1.8;1. Download ElasticsearchHttps://www.elastic.co/cn/downloads/elasticsearch#ga-releaseBecause it's a Windows version, you can download the zip2, unzip, my directory location: "E:\es\elasticsearch-5.4.1"In the folder's Bin directory, double-click Elasticsearch.bat to execute, after completing any browser ty

Go to the bin directory under the elasticsearch installation directory: 1. Install the head plug-in Plugin-install mobz/elasticsearch-head Verification: http: // localhost: 9200/_ plugin/head/ * Use the head to view the results after word segmentation: Navigate to any request-> query: Fill in three fields: A. http: // 127.0.0.1: 9200/index name/ B. _ analyze? Analyzer = ik C. The keyword to be viewed (the

"Quick" lowercase), remove the words (such as disabling words "a" , and "and"``"the" so on), or add words (such as synonyms "jump" and "leap" )Elasticsearch offers many out-of-the-box character filters, Word breakers, and characterization filters. These can be combined to create a custom parser to respond to different requirements. We will discuss this in more detail in the section "Custom Analyzers".Built-in analyzersHowever,

translated in original : Http://www.elasticsearch.org/guide/en/elasticsearch/client/java-api/current/client.html#node-client Translation of Elasticsearch's JAVAAPI client This section describes the Java APIs provided by Elasticsearch, and all elasticsearch operations are performed using the client object. All operations are essentially completely asynchrono

Analysis and Analyzer Analysis is the process of characterizing a block of text as a separate word for inverted indexing (term) and then standardizing the words as standard forms, improving their "searchable" or "recall" This work is done by analyzer. A parser is just a wrapper for putting three functions into one package: Character filters First, the string passes through the character filter (character filter), whose work is to process the string before it is represented (the word is more appr

Our products require full-text search functionality, and back-end data storage primarily uses MySQL + MongoDB, where the content that needs to be retrieved is in MongoDB.MongoDB itself is self-featured with text indexing, but it does not support Chinese. The technology industry has specialized, MongoDB is the data storage application, then the full text search uses the specialized full-text search engine bar.Some of the pre-selected contestants are: SOLR, El