Solr vs ElasticSearch

Solr vs ElasticSearch - the million-dollar question. :-)

Overview

Broadly, Solr and ElasticSearch essentially have the same feature-set and address the same problem - that of building a fast, feature-rich search application on top of Apache Lucene.

Both provide (now standard) search features such as:

• Java API and REST
• faceting
• highlighting
• geo spatial search
• replication

In fact, Solr and ElasticSearch are so similar, there is even an ES plugin that allows you to use Solr clients/tools with ElasticSearch!

For all practical purposes, there is no real reason to choose Solr over ElasticSearch or vice versa. Both have mature codebases, widespread deployment and are battle-proven. There are of course small variations in the two, such as ElasticSearch's percolation feature, and Solr's Pivot Facets.

For more information

Here's a blow-by-blow feature comparison of Solr vs ElasticSearch.