Is Apache Solr Free

Apache Solr (stands for Searching On Lucene w/ Replication) is a free, open-source search engine based on the Apache Lucene library. An Apache Lucene subproject, it has been available since 2004 and is one of the most popular search engines available today worldwide.

What is the difference between Apache SOLR and Elasticsearch?

The main difference between Solr and Elasticsearch is that Solr is a completely open-source search engine. Whereas Elasticsearch though open source is still managed by Elastic’s employees. Solr supports text search while Elasticsearch is mainly used for analytical querying, filtering, and grouping.

Which is better Elasticsearch or SOLR?

Solr fits better into enterprise applications that already implement big data ecosystem tools, such as Hadoop and Spark. … Elasticsearch is focused more on scaling, data analytics, and processing time series data to obtain meaningful insights and patterns. Its large-scale log analytics performance makes it quite popular.