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solr

Solr is the popular, blazing-fast, open source enterprise search platform built on Apache Lucene.

  • Tools & Utilities
Solr is the popular, blazing-fast, open source enterprise search platform built on Apache Lucene.

Platform availability

Available on 2 of 9 platforms

  • Unraid
  • TrueNAS (not listed)
  • Umbrel (not listed)
  • ZimaOS (not listed)
  • Proxmox (not listed)
  • Helm
  • Mac (not listed)
  • Windows (not listed)
  • Linux (not listed)

Health score?A 0-100 score computed nightly from four factors: maintained (40%: recent commits and steady activity), popular (25%: GitHub stars, log scale), easy to install (20%: platforms, install notes, setup guides, Docker image) and light to run (15%: minimum RAM, ARM support). When the source code has been checked, a fifth factor, security check (20%: automated scan for committed secrets, unsafe desktop-app settings, known-vulnerable dependencies and project hygiene; any serious finding caps it at 20), is added. Factors without data are left out and the rest are rescaled.

77/100 Good

Maintained
100last commit 6 days ago
Popular
651,683 GitHub stars
Easy to install
452 install platforms, install notes, Docker image
Light to run
No data

Based on 3 of 4 factors.

Availability: platform listings confirmed today, links checked 13 days ago

GitHub stars
1,683
Open issues
197
Last commit
2026-10-07
License
Apache-2.0
Activity
steady

Checked 6 days ago - source: GitHub (apache/solr)

Resources & Compatibility

Requirements not published yet.

Checked 14 days ago - source: Docker Hub image tags and published docs

First-install notes

  • Prepare the Solr data folder Create a local folder such as `~/solrdata`, run `sudo chown :8983 ~/solrdata` to set group ID 8983, and add the folder to Docker's allowed volumes if your Docker Desktop setup requires it. This prevents permission errors and blocked storage, which can stop Solr from saving its search index or starting correctly. source
  • Build and start the Solr container Build the image with `docker build -t typo3-solr -f Docker/SolrServer/Dockerfile .`, then run it with `-v ~/solrdata:/var/solr/data/data` and `-p 127.0.0.1:8282:8983`. This keeps Solr's files in your local folder and gives you a local web port, so you can reach Solr and keep its index after restarts. source
  • Install the TYPO3 extension with Composer If you're adding this to a TYPO3 site, run `composer require apache-solr-for-typo3/solr` in the project root; Composer is the package installer that brings in the extension's code. Without this step, your TYPO3 site won't have the Solr search extension installed. source

Fetched 14 days ago - each note links to its source

Alternatives (5)

  • Algolia - Algolia helps product teams connect their users with information by providing the building blocks they need to create fast, relevant, perso…
  • Elasticsearch - Elasticsearch is a distributed search and analytics engine that indexes and queries full-text, log, metric, and vector data in near real ti…
  • Manticore search - Open source search server designed to be fast, scalable and with powerful and accurate full-text search capabilities derived from Sphinx se…
  • Qdrant - Qdrant is a vector similarity search engine and vector database for storing, searching, and managing vectors with associated payload.
  • meilisearch - An open-source, fast, and hyper-relevant search engine that fits effortlessly into your projects.

Checked 11 days ago - source: AlternativeTo

Common questions

What Docker data folder setup prevents Solr index permission problems?

Create a local folder such as ~/solrdata, set its group ID to 8983, and add it to Docker's allowed volumes if your Docker Desktop setup requires it. This helps prevent permission errors that can stop Solr from saving the index or starting.

Does Solr require explicit schema definitions for fields?

Yes, you need to declare each field type and set schemas in Solr.

What configuration areas are important when running Solr in production?

Production Solr requires care with JVM heap sizing and GC tuning, as well as master/replica replication setup. Getting these wrong can cause Solr to fall over under load.

Where can self-hosters get support for Solr?

You can ask for help in the users mailing list, the Solr Community Slack channel, or the #solr IRC channel.

Are there current security notices for Solr?

The Solr site notes recent security announcements and points to the security page for details.

Answers sourced from docs.typo3.org, github.com, lucene.apache.org, opensolr.com, www.reddit.com

Community

Collected 9 days ago - public community threads