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Tuning Your JVM Java Virtual Machine (JVM) tuning primarily focuses on adjusting Java heap and non-heap settings and configuring garbage collection. Finding settings that perform well for you...

例：シンプルなDXPクラスターの作成

Official Documentation

Example: Creating a Simple DXP Cluster A fast, easy way to learn DXP clustering is to set up a two node DXP cluster environment on one machine using Docker containers. This example creates two DXP...

Liferayソフトウェアのバージョン

Liferay Software Versions Starting with Liferay 7.4, Liferay adopted a rolling release model for delivering updates and fixes. This means Liferay 7.4 is a long living release with many releases for...

Liferayのアップデート

Official Documentation

Updating Liferay Liferay DXP 7.3 SP3+/Portal 7.4 GA1+ Update your Liferay installation with Bundle Releases. The latest features, security releases, as well as library updates are all delivered...

データベーステンプレート

Database Templates Below are templates (example portal properties and Docker environment variables) for configuring various databases as a built-in data source for Liferay DXP. MariaDB Portal...

リファレンス

Official Documentation

Reference When installing Liferay, you must take into consideration the specifics of your environment. These topics help you integrate Liferay into your existing environment and aid in...

ポータル開発者プロパティ

Official Documentation

Portal Developer Properties There are Portal Properties that facilitate development. Liferay's portal-developer.properties file includes all of them. The portal-developer.properties file is enabled...

Liferay Home

Liferay Home Liferay Home is the folder from which Liferay DXP/Portal launches applications, reads and applies configurations, loads JAR files, generates logs, and more. Liferay Home's location...

データベース設定

Database Configuration By default for demonstration purposes, Liferay DXP/Portal is configured to use an embedded HSQL database. Beyond demonstration purposes, we recommend using a full-featured,...

Liferay DXPのアクティブ化

Official Documentation

Activating Liferay DXP Starting with the 2026.Q1 release, all Liferay DXP installations—including trial and free-tier environments—require an XML (.xml) activation key to enable core features and...

Tomcatによるセッションレプリケーション

Official Documentation

Session Replication with Tomcat Liferay DXP 2024.Q3+/Portal GA92+ To ensure user session data is synchronized across all instances in the cluster, Liferay supports session replication. If one...

デフォルトのメール送信者の設定

Official Documentation

Configuring Default Email Senders By default, emails sent by Liferay DXP use the name and email address of the default admin user. This behavior can be configured for each of the different email...

高可用性のためのクラスタリング

Official Documentation

Clustering for High Availability Liferay DXP can scale to serve everything from the smallest to the largest web sites. Out-of-the-box, it's configured optimally for a single server environment. If...

Liferay DXP 2025.Q2 の重大な変更点

Official Documentation

Liferay DXP 2025.Q2 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2025.Q2. As the...

Liferay DXP 2025.Q1 の重大な変更点

Official Documentation

Liferay DXP 2025.Q1 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2025.Q1. As the...

Liferay DXP 2024.Q4におけるメンテナンスモードと非推奨機能

Official Documentation

Maintenance Mode and Deprecations in Liferay DXP 2024.Q4 Features moved to Maintenance Mode or marked as Deprecated in Liferay DXP 2024.Q4 appear here. For details about these statuses and their...

2024年第4四半期のデフォルト設定と機能フラグの変更

Official Documentation

2024.Q4 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...

2025年第1四半期のデフォルト設定と機能フラグの変更

Official Documentation

2025.Q1 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...

2025年第2四半期のデフォルト設定と機能フラグの変更

Official Documentation

2025.Q2 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, review the changes and...

Liferay DXP 2025.Q2におけるメンテナンスモードと非推奨機能

Official Documentation

Maintenance Mode and Deprecations in Liferay DXP 2025.Q2 Features moved to Maintenance Mode or marked as Deprecated in Liferay DXP 2025.Q2 appear here. For details about these statuses and their...

2026年第1四半期デフォルト設定と機能フラグの変更

Official Documentation

2026.Q1 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, review the changes and...

Liferay DXP 2026.Q1におけるメンテナンスモードと非推奨機能

Official Documentation

Maintenance Mode and Deprecations in Liferay DXP 2026.Q1 Features moved to maintenance mode or marked as deprecated in Liferay DXP 2026.Q1 appear here. For details about these statuses and their...

2026年第2四半期のデフォルト設定と機能フラグの変更

Official Documentation

2026.Q2 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, review the changes and...

Liferay DXP 2026.Q2におけるメンテナンスモードと非推奨機能

Official Documentation

Maintenance Mode and Deprecations in Liferay DXP 2026.Q2 Features moved to maintenance mode or marked as deprecated in Liferay DXP 2026.Q2 appear here. For details about these statuses and their...

7.2 非推奨および重大な変更

7.2 Deprecations and Breaking Changes

Liferay DXP 2024.Q2 の重大な変更点

Official Documentation

Liferay DXP 2024.Q2 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2024.Q2. As the...

Liferay DXP 2024.Q3 の重大な変更点

Official Documentation

Liferay DXP 2024.Q3 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2024.Q3. As the...

7.3 旧バージョンと非互換の変更

Official Documentation

7.3 Breaking Changes This document presents a chronological list of changes that break existing functionality, APIs, or contracts with third party Liferay developers or users. We try our best to...

Default Setting Changes in 7.2

Default Setting Changes in 7.2 Most new versions of Liferay include changes to the default settings. If you rely on the defaults from your old version, you should review the changes and decide to...

7.2のメンテナンスモードと非推奨

Maintenance Mode and Deprecations in 7.2 With each new DXP release, a feature may not warrant continued enhancements or may become obsolete. Stopping enhancements for a feature puts it in...

7.3 非推奨および重大な変更

7.3 Deprecations and Breaking Changes

7.3でのデフォルト設定の変更

Default Setting Changes in 7.3 Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the changes and decide...

7.4 旧バージョンと非互換の変更

Official Documentation

7.4 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay 7.4, starting with the latest quarterly...

7.4 でのデフォルト設定と機能フラグの変更

Default Setting and Feature Flag Changes in 7.4 Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...

7.3のメンテナンスモードと非推奨

Maintenance Mode and Deprecations in 7.3 With each new DXP release, a feature may not warrant continued enhancements or may become obsolete. Stopping enhancements for a feature puts it in...

データベースの移行

Official Documentation

Migrating the Database For support, maintenance, or performance reasons, you may decide to migrate from the database you use to one of the other databases Liferay supports. Though the exact steps...

アップグレード後の考慮事項

Official Documentation

Post-Upgrade Considerations After upgrading the database, you should configure Liferay for production again and check up on feature changes that might affect your Liferay instance. Re-enable...

言語キーの名称変更

Renamed Language Keys In Liferay DXP/Portal 7.4, module language keys were centralized to a module called portal-language-lang. Source location: ...

7.4 非推奨および重大な変更

7.4 Deprecations and Breaking Changes

7.4のメンテナンスモードと非推奨

Maintenance Mode and Deprecations in 7.4 With each new Liferay DXP and Liferay Portal release, a feature may not warrant continued enhancements or may become obsolete. Stopping enhancements for a...

Liferay DXP 2024.Q4 の重大な変更点

Official Documentation

Liferay DXP 2024.Q4 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2024.Q4. As the...

Liferay DXP 2026.Q2 の互換性のない変更点

Official Documentation

Liferay DXP 2026.Q2 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2026.Q2. As the...

Liferay DXP 2026.Q1 の互換性のない変更点

Official Documentation

Liferay DXP 2026.Q1 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2026.Q1. As the...

7.2 旧バージョンと非互換の変更

Official Documentation

7.2 Breaking Changes This document presents a chronological list of changes that break existing functionality, APIs, or contracts with third party Liferay developers or users. We try our best to...

アップグレードの準備

Official Documentation

Preparing for an Upgrade Preparation and planning may be of little consequence for small, casual installations but is mandatory for large enterprise-level installations. There are specific...

アップグレードログのコンテキスト

Upgrade Log Context Liferay DXP 7.4 U72 / Liferay Portal 7.4 GA72 Enable the upgrade log context to display identifiers for upgrade related processes in your console logs. The possible identifiers...

データ初期化

Data Cleanup Liferay executes data cleanup processes to repair databases with obsolete data. This lightens the load during an upgrade, improving performance and reducing overhead. As of Liferay...

アップグレードレポート

Upgrade Report Available 7.4+ When you perform upgrades, it is important to know the changes made and any issues that occurred. The upgrade status returns combined results for core upgrades,...

例：ジャーナル記事の中間バージョンの削除

Example: Removing Intermediate Journal Article Versions These instructions and code samples demonstrate removing intermediate Journal Article versions. In the script console, you can remove...

一般的なアップグレードの問題

Common Upgrade Issues Skipping an upgrade step or creating custom references to the Liferay database, can cause upgrade issues. The following questions and answers address some common situations. ...

アップグレードのためのデータベース調整

Database Tuning for Upgrades Performing an upgrade impacts the database differently from daily running in production. Because of this, you should tune your database for the upgrade process before...

MBean によるアップグレードの監視

Monitoring Upgrades with MBeans Liferay DXP 7.4 U76 / Liferay Portal 7.4 GA76 When upgrade upon startup is enabled, the upgrade process can be monitored with MBeans through a JVM management tool...

アップグレードのトラブルシューティング

Official Documentation

Troubleshooting Upgrades Liferay has many out-of-the-box tools and features to identify and solve issues that may arise when performing an upgrade. To troubleshoot, you can upgrade modules...

Gogo Shell を使用したモジュールのアップグレード

Upgrading Modules Using Gogo Shell To troubleshoot upgrade issues with particular modules, it may be necessary to test and perform upgrades on a per-module basis, instead of en-masse. Liferay has...

アップグレードを高速化するためのデータベースプルーニング

Database Pruning for Faster Upgrades The more data you have the longer your data upgrade takes. Unneeded site data is a common occurrence. Pruning the database of unneeded data improves upgrade...

カスタマイズの更新

Official Documentation

Updating Customizations Plugins (e.g., themes, apps, and customizations) you've developed must be adapted to the new Liferay version. This can be as simple as updating dependencies or updating code...

構成とプロパティの移行

Migrating Configurations and Properties Your current DXP installation's OSGi configurations (7.0+) and properties (such as portal properties and system properties) set up your DXP instance to fit...

データベースのアップグレード

Official Documentation

Upgrading the Database Liferay's tools and instructions facilitate upgrading DXP and Portal environments safely and quickly. Non-clustered environments that have small data sets, can be upgraded...

ファイルストアの更新

Updating the File Store File store options and configuration values changed in Liferay DXP 7.0. If you're on 7.0 or earlier and are affected by these changes, you must update your file store before...

クラスタ環境とシャード環境のアップグレード

Upgrading Clustered and Sharded Environments If you're upgrading a clustered installation, you must follow an upgrade approach that fits your cluster requirements. See Maintaining Clustered...

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