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[elastic search engine]
2020-11-06 21:19:00 【Mrchai521】
What is? ElasticSearch
Elasticsearch It's a real-time distributed ( It supports distributed ) Search and analysis engine . It can help you process large-scale data at an unprecedented speed .ElasticSearch It's based on Lucene Search server for . It provides a distributed multi-user capability of full-text search engine , be based on RESTful web Interface .Elasticsearch Yes, it is Java Developed , And as a Apache Open source distribution under license terms , Is the current popular enterprise search engine . Designed for Cloud Computing , Real time search , Stable , reliable , Fast , Easy to install and use .
ElasticSearch characteristic
- It can be used as a large distributed cluster ( Hundreds of servers ) technology , Handle PB Level data , Serve big companies ; It can also run on a single machine ;
- Search the full text of 、 Data analysis and distributed technology , Combined... Together , To form a unique ES;
- Out of the box , Simple deployment ;
- Full text search , Synonym processing , Relevance ranking , Complex data analysis , Near real time processing of massive data ;
ElasticSearch Architecture
The following table is Elasticsearch And MySQL Comparison of the concepts of database logical structure :
ElasticSearch | Relational database Mysql |
---|---|
Indexes (index) | database (database) |
type (type) | surface (table) |
file (document) | That's ok (row) |
stay ElasticSearch in , The basic unit of storing data is a document .
ElasticSearch Of Windows install
es Unzip and start the installation package
install ElasticSearch7.4.2 edition , First decompress
After decompressing, enter es Of bin Under the table of contents .
Input cmd Open the terminal :
Input .\elasticsearch, You can start elasticsearch:
After startup , Browser access loclahost:9200, The following results represent success :
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