elasticsearch search

Finally, I found the distributed search framework of elasticsearch. As soon as I read it, I thought it was the same. Basically all the features I want include distributed search, distributed indexing, Zero Configuration, automatic partitioning, automatic indexing load, automatic discovery, and restful APIs. So I started to use it, deployed four machines, and impo

One: Refer to official documents1. Elasticsearch 5.4.0 English HandbookHttps://www.elastic.co/guide/en/elasticsearch/reference/5.4/search-request-post-filter.html2. "Elasticsearch authoritative guide" Chinese versionHttps://www.elastic.co/guide/cn/elasticsearch/guide/current

Elasticsearch is an open source distributed real-time search and analysis engine that supports cloud services. It is based on the Apache Lucene search engine's class library and provides full-text search capabilities, multi-lingual support, a dedicated query language, support for geolocation services, context-based

upgrade node to a stable versionsudo n StableThis time node upgrade was pit, appeared segmentation fault:11 error, later resolved, directly with the n command to reset the version to use9.3. 0Unfortunately, and did not install success, but it doesn't matter, try several versions always have success, hehe ~ ~Finally, I installed 9.11.0.　　4. Start Plugin (NPM is the installation tool for node's package) input command: NPM run startEnter Elasticsearch-h

= new Byte[4]; for (int i = 0; i 3.2 Manual restful Connection Search (Java) Import Java.io.bufferedreader;import Java.io.dataoutputstream;import Java.io.inputstreamreader;import Java.net.httpurlconnection;import Java.net.url;import Org.elasticsearch.index.query.matchquerybuilder;import Org.elasticsearch.index.query.querybuilders;import org.elasticsearch.search.builder.searchsourcebuilder;/* Implement RestFul Manually (FAST) * Refer * htt

://localhost:9200/_cluster/health or http://localhost:9200/_cluster/nodes, or use plugins http://github.com/ Lukas-vlcek/bigdesk or Http://mobz.github.com/elasticsearch-head to view the cluster status.5. Each node can define some common properties associated with it for filtering when a post-cluster is fragmented:node.rack:rack3146. By default, multiple nodes can be started on the same installation path, if you want your ES to start only one node, you

[Elasticsearch] distributed searchDistributed search This article is translated from the Distributed Search Execution Chapter in the Elasticsearch official guide. Before proceeding, let's take a look at how the search is executed in a distributed environment. This process is

Http://localhost:9200/_cluster/health or Http://localhost:9200/_cluster/nodesor use plug-in Http://github.com/lukas-vlcek/bigdesk or http://mobz.github.com/elasticsearch-head to view the cluster status.5. Each node can define some common properties associated with it for filtering when a post-cluster is fragmented: node.rack:rack3146. By default, multiple nodes can be started on the same installation path, if you want your ES to start only one node,

Tags: command github lease open engine ons IAR log TPSA: ElasticSearch SQL Plug-in introduction　　With this plugin you can query elasticsearch using familiar SQL syntax. You can also use ES functions in SQL.II: SQL Plug-in installation　　Address: https://github.com/NLPchina/elasticsearch-sql/Find the corresponding version of 2.4.4, such as:　　Start the ES service, r

Search engine Elasticsearch 5.2.2 in the WIN8 installation process is as followsDownload elasticsearch5.2.2 HTTP://PAN.BAIDU.COM/S/1I5BS5NVExtractOpen and configure the Elasticsearch/config/elasticsearch.yml filecluster.name:es-clusternode.name:node-forgeeksnetwork.host: 132.126. 3.180truetruehttp.cors.allow"*"http.port:9200Open and configure the

Using Elasticsearch to do site search, background frame is laravel, so use this laravel package, "Elasticquent" (https://github.com/elasticquent/Elasticquent) , Problem:If there is a artiles table in MySQL, and now there is a new article to join, then how does the Elasticsearch index automatically synchronize the data in the MySQL artiles table? Reply conten

complex queries, such as to find a field must have a value, and another field must have another value, this time can use BOOL query, such as the following[Java]View PlainCopy Responsebuilder.setquery (Querybuilders.boolquery (). Must (Querybuilders.multimatchquery (query, "name"," Title "," Title_1 ")). Must (Querybuilders.multimatchquery (Query2, " Title2 "," Title3 " ))) The above means that there is a query in the title or Title_1 or Name field, and there is a query2 result

query, such as the following[Java]View PlainCopy Responsebuilder.setquery (Querybuilders.boolquery (). Must (Querybuilders.multimatchquery (query, "name"," Title "," Title_1 ")). Must (Querybuilders.multimatchquery (Query2, " Title2 "," Title3 " ))) The above means that there is a query in the title or Title_1 or Name field, and there is a query2 result recall in the Title2 or Title3 fieldOf course, according to their own situation, there are should,must_not and other optionsFi

Elasticsearch index optimization mainly solves the problem from two aspects: the index data process and the retrieval process. I have mentioned how to create indexes and import data in the previous articles, but you may encounter slow indexing data. In fact, you can perform targeted optimization by understanding the indexing principles. The elasticsearch index process expands the distributed data compared t

The previous few basic has achieved most of the instant Messaging features: Chat, group chat, send files, pictures, messages. But these businesses are relatively rugged. Below we have the business refinement, before using the dead data, then we will start with friends. Add friends, first you need to know who you want to add. The Layim interface has a + sign in the lower right corner, and then it pops up to find a friend's interface, but the interface needs to be customized. Because the front-end

Elasticsearch is an open source search engine, built on the basis of a Full-text search engine library Apache lucene™. Lucene may be present, whether open source or private, with the most advanced, high-performance and full-featured search engine features of the library. But Lucene is just a library. To take advantage

The Web Crawler architecture is a typical distributed offline batch processing architecture on top of nutch + hadoop. It has excellent throughput and capture performance and provides a large number of configuration customization options. Because web crawlers only capture network resources, a distributed search engine is required to index and search network resources captured by web crawlers in real time.

Simple searchGETThe request is very simple-you can easily get the document you want. Let's try something further, like a simple search!We try one of the simplest search requests for all employees:GET /megacorp/employee/_searchNext, let's search for employees whose last name contains "Jake" . To do this, we'll use a lightweight

": { ' Type ': ' String ', "Term_vector": "With_positions_offsets", "Analyzer": "Ik_syno", "Search_analyzer": "Ik_syno" }, "Content": { ' Type ': ' String ', "Term_vector": "With_positions_offsets", "Analyzer": "Ik_syno", "Search_analyzer": "Ik_syno" }, "Tags": { ' Type ': ' String ', "Term_vector": "No", "Analyzer": "Ik_syno", "Search_analyzer": "Ik_syno" }, "slug": { ' Type ': ' String ', "Term_vector": "No" }, "Update_date": { "Type": "Date", "T