ElasticSearch Introduction

• Elasticsearch is a search engine based on Lucene.
• It provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents.
• Elasticsearch is developed in Java and is released as open source under the terms of the Apache License.
• Elasticsearch is a real-time distributed and open source full-text search and analytics engine. It is used in Single Page Application (SPA) projects.

What is Lucene?

• Apache LuceneTM is a high-performance, full-featured text search engine library written entirely in Java.
• It is a technology suitable for nearly any application that requires full-text search, especially cross-platform.

What is Logstash used for?

• Logstash is an open source tool for collecting, parsing, and storing logs for future use.
• Kibana 3 is a web interface that can be used to search and view the logs thatLogstash has indexed.
• Both of these tools are based on Elasticsearch. Elasticsearch, Logstash, and Kibana, when used together is known as an ELK stack.

What is Kibana?

• Kibana is an open source data visualization plugin for Elasticsearch.
• It provides visualization capabilities on top of the content indexed on an Elasticsearch cluster.
• Users can create bar, line and scatter plots, or pie charts and maps on top of large volumes of data.

Solr vs Elasticsearch

learn elasticsearch tutorials - elasticsearch vs solr Example

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