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Apache Lucene open-source search software
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Armin Braun 62e08f5f4b
TaskExecutor should not fork unnecessarily (#13472) 
When an executor is provided to the IndexSearcher constructor, the searcher now executes tasks on the thread that invoked a search as well as its configured executor. Users should reduce the executor's thread-count by
1 to retain the previous level of parallelism. Moreover, it is now possible to start searches from the same executor that is configured in the IndexSearcher without risk of deadlocking. A separate executor for starting searches is no longer required.

Previously, a separate executor was required to prevent deadlock, and all the tasks were offloaded to it unconditionally, wasting resources in some scenarios due to unnecessary forking, and the caller thread having to wait for all tasks to be completed anyways. it can now actively contribute to the execution as well.
 		2024-07-04 11:15:26 +02:00
.github Java 22 has been released, so drop -ea from smoketester gh workflow matrix. 2024-06-06 15:45:27 +02:00
build-tools Correct the default checksum for artifacts to be sha512. #13484 2024-06-18 09:43:29 +02:00
dev-docs a bit of clarification about GitHub Milestone 2022-08-28 13:52:58 +09:00
dev-tools DOAP changes for release 9.11.1 2024-06-27 15:40:55 +02:00
gradle Gradle build: cleanup of dependency resolution and consolidation of dependency versions (#13484) 2024-06-17 09:49:21 +02:00
help Gradle build: cleanup of dependency resolution and consolidation of dependency versions (#13484) 2024-06-17 09:49:21 +02:00
lucene TaskExecutor should not fork unnecessarily (#13472) 2024-07-04 11:15:26 +02:00
.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 GITHUB#12655: Add google java format upgrade tidy / regen to blame ignore 2023-10-11 16:15:42 -04:00
.gitattributes Add versions.toml to .gitattributes and normalize line endings to lf. #13484 2024-06-18 14:25:40 +02:00
.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 equivocate about IntelliJ test runner 2024-06-10 08:40:38 -04:00
LICENSE.txt LUCENE-10163 Move LICENSE and NOTICE file to top level (#388) 2021-10-18 01:24:11 +02:00
NOTICE.txt Cleanup NOTICE.txt (#12227) 2023-04-18 15:58:09 -04:00
README.md Make Gradle dashboard easy to find by adding a badge (#13476) 2024-07-01 09:09:51 +01:00
build.gradle Gradle build: cleanup of dependency resolution and consolidation of dependency versions (#13484) 2024-06-17 09:49:21 +02:00
gradlew Gradle build: cleanup of dependency resolution and consolidation of dependency versions (#13484) 2024-06-17 09:49:21 +02:00
gradlew.bat Gradle build: cleanup of dependency resolution and consolidation of dependency versions (#13484) 2024-06-17 09:49:21 +02:00
settings.gradle Gradle build: cleanup of dependency resolution and consolidation of dependency versions (#13484) 2024-06-17 09:49:21 +02:00
versions.lock Gradle build: cleanup of dependency resolution and consolidation of dependency versions (#13484) 2024-06-17 09:49:21 +02:00
versions.toml Add versions.toml to .gitattributes and normalize line endings to lf. #13484 2024-06-18 14:25:40 +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 Revved up by Develocity

Online Documentation

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

Building

Basic steps:

  1. Install OpenJDK 21.
  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.

Contributing

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

  • Additional Developer Documentation: dev-docs/

Discussion and Support