Welcome to the Apache Solr project! by apache
Apache Solr open-source search software
About Welcome to the Apache Solr project!
From the project's README at github.com/apache/solr. Lightly cleaned for readability; for the full source see the upstream repo.
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Solr is the blazing-fast, open source, multi-modal search platform built on Apache Lucene. It powers full-text, vector, and geospatial search at many of the world's largest organizations.
[](https://ci-builds.apache.org/job/Solr/job/Solr-Artifacts-main/) [](https://ci-builds.apache.org/job/Solr/job/Solr-Lint-main/)
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 1.6k | github.com/apache/solr |
| GitHub forks | 823 | github.com/apache/solr |
| Docker Hub pulls | 352676k | hub.docker.com / library |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 5.2 years | since Feb 2021 |
| Last commit | 3 days ago | May 3, 2026 |
| Security policy | SECURITY.md | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
Security advisories
CVE-2026-22444. What people say on Hacker News
- Show HN: I built a way to see if your SDK is AI-friendly
- Show HN: Figpack science viz – Python script → Shareable HTML Bundle in cloud
- Show HN: XTrace – Encrypted vector DB (search embeddings without exposing them)
- Show HN: Zoneless – Open-source Stripe Connect clone with $0.002 fees using USDC
- Show HN: CongaLine – Self-hosted isolated AI agent fleet (OpenClaw, Hermes)
Ready to self-host Welcome to the Apache Solr project!?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
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