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b8bfffa368
This commit tries to save calls to `madvise` which are not necessary, either because they map to the OS' default, or because the advice would be overridden later on anyway. I have not noticed specific problems with this, but it seems desirable to keep calls to `madvise` to a minimum. As a consequence: - Files that are open with `ReadAdvice.NORMAL` do not call `madvise` since this is the OS' default. - Compound files are always open with `ReadAdvice.NORMAL`, and the actual is only set when opening sub files of these compound files. To make the latter less trappy, the `IOContext` parameter has been removed from `CompoundFormat#getCompoundReader`.
Apache Lucene
Apache Lucene is a high-performance, full-featured text search engine library written in Java.
Online Documentation
This README file only contains basic setup instructions. For more comprehensive documentation, visit:
- Latest Releases: https://lucene.apache.org/core/documentation.html
- Nightly: https://ci-builds.apache.org/job/Lucene/job/Lucene-Artifacts-main/javadoc/
- New contributors should start by reading Contributing Guide
- Build System Documentation: help/
- Migration Guide: lucene/MIGRATE.md
Building
Basic steps:
- Install OpenJDK 21.
- Clone Lucene's git repository (or download the source distribution).
- 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
- Users Mailing List
- Developers Mailing List
- IRC:
#luceneand#lucene-devon freenode.net