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Apache Lucene open-source search software
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Lu Xugang 6040d1648f
LUCENE-10502: Use IndexedDISI to store docIds and DirectMonotonicWriter/Reader to handle ordToDoc (#880) 
Currently vector's all docs of all fields are fully loaded into memory (for sparse cases).
This happens not only when we do vector search, but also when we open an index to 
load meta info for vector readers.

This patch instead uses IndexedDISI to store docIds and DirectMonotonicWriter/Reader to 
handle  ordToDoc mapping. Benefits are reduced memory usage, and faster loading of 
meta info for vector readers.
 		2022-05-11 13:18:10 -04:00
.github LUCENE-10532: remove @Slow annotation (#832) 2022-05-09 23:03:55 -04:00
buildSrc fail clearly on too-new JDK (#819) 2022-04-21 09:22:26 -04:00
dev-docs Add documentation on file formats. (#598) 2022-01-11 15:16:05 +01:00
dev-tools LUCENE-10532: remove @Slow annotation (#832) 2022-05-09 23:03:55 -04:00
gradle LUCENE-10532: remove @Slow annotation (#832) 2022-05-09 23:03:55 -04:00
help LUCENE-10532: remove @Slow annotation (#832) 2022-05-09 23:03:55 -04:00
lucene LUCENE-10502: Use IndexedDISI to store docIds and DirectMonotonicWriter/Reader to handle ordToDoc (#880) 2022-05-11 13:18:10 -04:00
.asf.yaml titles for github 2021-03-10 12:51:06 +01:00
.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 Make CONTRIBUTING.md a bit more succinct (#866) 2022-05-05 10:35:33 +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-10416: Update Korean Dictionary to mecab-ko-dic-2.1.1-20180720 for Nori 2022-02-20 21:39:03 +09:00
README.md Fix incorrect docs in README.md: it must be java 17 exactly, java 18 does not work (#818) 2022-04-20 11:07:24 -04:00
build.gradle LUCENE-10535: upgrade com.palantir.consistent-versions to 2.10.0 2022-04-26 08:31:15 +02:00
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 LUCENE-10328: Module path for compiling and running tests is wrong (#571) 2022-01-05 20:42:02 +01:00
versions.lock LUCENE-8930: script testing in the distribution (#550) 2022-01-20 00:09:15 +09:00
versions.props LUCENE-8930: script testing in the distribution (#550) 2022-01-20 00:09:15 +09:00

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