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Apache Lucene open-source search software
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Robert Muir ece8ea715c
Fix ExitableDirectoryReader sampling constants to be power-of-2 (#11850) 
If it's performance sensitive enough that we should do sampling, then we should avoid integer division too.
 		2022-10-15 12:05:15 -04:00
.github GitHub Workflows security hardening (#11789) 2022-09-20 11:28:07 +02:00
buildSrc WrapperDownloader: add retries for network blips around connect(), too (#11846) 2022-10-13 07:21:34 -04:00
dev-docs a bit of clarification about GitHub Milestone 2022-08-28 13:52:58 +09:00
dev-tools DOAP changes for release 9.4.0 2022-09-30 18:03:35 -04:00
gradle make 'gradle coverage' print test coverage summaries. (#11837) 2022-10-05 21:46:20 -04:00
help LUCENE-10532: remove @Slow annotation (#832) 2022-05-09 23:03:55 -04:00
lucene Fix ExitableDirectoryReader sampling constants to be power-of-2 (#11850) 2022-10-15 12:05:15 -04:00
.asf.yaml .asf.yaml 2022-08-16 20:02:47 +09:00
.dir-locals.el LUCENE-9322: Add Lucene90 codec, including VectorFormat 2020-10-18 07:49:36 -04:00
.git-blame-ignore-revs LUCENE-9570: code reformatting [record rev]. 2021-01-05 13:44:42 +01:00
.gitattributes LUCENE-10305: Ensure line endings of versions.props is LF 2021-12-11 10:10:44 +09:00
.gitignore LUCENE-9920: Remove binary gradle-wrapper.jar from the repository 2021-04-10 16:08:39 +02:00
.hgignore LUCENE-2792: add FST impl 2010-12-12 15:36:08 +00:00
.lift.toml Disable liftbot, we have our own tools 2022-05-05 22:27:57 +02:00
CONTRIBUTING.md update contributing guide for GH issue (#11716) 2022-08-25 04:06:09 +09:00
LICENSE.txt LUCENE-10163 Move LICENSE and NOTICE file to top level (#388) 2021-10-18 01:24:11 +02:00
NOTICE.txt LUCENE-10613: Clean up outdated NOTICE.txt information concerning morfologik 2022-06-13 19:50:54 +02:00
README.md remove a link to old Jira in README. 2022-09-01 00:41:56 +09:00
build.gradle make 'gradle coverage' print test coverage summaries. (#11837) 2022-10-05 21:46:20 -04:00
gradlew fail clearly on too-new JDK (#819) 2022-04-21 09:22:26 -04:00
gradlew.bat Fix JVM error branch logic. (#835) 2022-04-25 14:33:56 +02:00
settings.gradle GH-11172: remove WindowsDirectory and native subproject. (#11774) 2022-09-15 16:22:46 +02:00
versions.lock #11720 Upgrade randomizedtesting to 2.8.1 (#11721) 2022-08-26 00:01:57 +02:00
versions.props Upgrade several build dependencies. (#11812) 2022-09-25 17:10:22 +02:00

README.md

Apache Lucene

Lucene Logo

Apache Lucene is a high-performance, full-featured text search engine library written in Java.

Build Status

Online Documentation

This README file only contains basic setup instructions. For more comprehensive documentation, visit:

Building

Basic steps:

  1. Install OpenJDK 17 (exactly this version).
  2. Clone Lucene's git repository (or download the source distribution).
  3. Run gradle launcher script (gradlew).

We'll assume that you know how to get and set up the JDK - if you don't, then we suggest starting at https://jdk.java.net/ and learning more about Java, before returning to this README.

See Contributing Guide for details.

Contributing

Bug fixes, improvements and new features are always welcome! Please review the Contributing to Lucene Guide for information on contributing.

Discussion and Support