Solr

Lesson in the Backend Developer Roadmap · Stage 20: Real-Time Data

Last updated 14 September 2026

What is Solr?

Solr is an open-source, scalable search platform built on Apache Lucene for full-text search, faceted search, and real-time indexing. Supports complex queries, distributed searching, text analysis, highlighting, and geographic search. Used for search engines and data retrieval systems.

Study this in the interactive course See the whole Backend roadmap

Free resources to learn Solr

Open sourceSolr on GitHub
ArticleSolr Website
ArticleSolr Documentation
VideoApache Solr vs Elasticsearch Differences

Solr: common questions

Can I learn Solr in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Solr in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Solr tutorial for beginners?

It is lesson 125 of 155 in the free Backend roadmap, in stage 20, Real-Time Data. If you are new to Backend, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.