Solr

Intro

Solr is a scalable, ready-to-deploy enterprise search engine that's optimised for large-volume text centric data, i.e. a specific NO-SQL technology. It returns results sorted by relevance.

it has two main functionalities: indexing data and performing queries.

Capabilities

• Keyword search box
  • Spell-checking
  • Synonym handlingPhrase queries
  • Text-analysis
• Geospacial queries
• Faceting
  • Shows features of the documents in result sets

Terminology

• Solr is built on Apache Lucene, which is a Java-based retrieval library.

• An inverted index is a specialised data structure for matching query terms to text-based documents.

• MapReduce is a programming model that distributes large-scale data-processing operations across a cluster of commodity servers by formulating an algorithm into two phases: map and reduce.

i2

http://localhost:8983/solr/#/~cloud

The above location is used to access the UI for the local Solr instance.