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Performing Rolling Restarts
Performing Rolling Restarts The rolling restart cluster maintenance process involves shutting down and updating nodes one at a time (while the other nodes are running) until they're all updated....
Using Slim Bundles
Using Slim Bundles Subscribers Liferay DXP 7.2 Fix Packs and Service Packs are also released bundled with the Tomcat application server. They are available as traditional bundles and Slim Bundles....
Slimming Down Patched Installations
Slimming Down Patched Installations Subscribers In Liferay DXP 7.2, patch information is retained in Patch Files in the installation by default. This facilitates restoring DXP to a previous patch...
Configuring the Patching Tool
Configuring the Patching Tool Subscribers The Patching Tool can be adapted to any DXP installation. The tool's auto-discovery option is the easiest way to configure the Patching Tool. If you...
Applying a Hotfix
Applying a Hotfix Subscribers A Hotfix is a fix or collection of fixes delivered between Updates (or between Fix Packs for versions before DXP 7.3 SP3) to address a customer's confirmed critical...
Accessing DXP Patch Code
Accessing DXP Patch Code Subscribers Liferay DXP Fix Pack and Hotfix source code is available in a private GitHub repository called liferay-dxp. The source code facilitates identifying and...
Getting Patch Information
Getting Patch Information Subscribers You can see patch information at a glance, which helps maintain your installation and get help from Liferay Support. The Patching Tool's info command lists...
Advanced Patching for DXP 7.2
Advanced Patching for DXP 7.2 Here are the DXP 7.2 advanced patching topics: Using Slim Bundles demonstrates conserving disk space by using DXP fix pack bundles that don't include Patch Files. ...
Custom Code and Patch Compatibility
Custom Code and Patch Compatibility Subscribers If you deploy code that customizes or patches your DXP 7.2 installation, you must maintain its compatibility with all patches you're using. The...
Installing Patches in Earlier Versions
Installing Patches in Earlier Versions Subscribers The Patching Tool applies Fix Packs (including Security Fix Packs and Service Packs) for versions prior to Liferay DXP 7.3 SP3. It also applies...
Using Multiple Display Page Templates to Create Multi-Step Applications
Using Multiple Display Page Templates to Create Multi-Step Applications Liferay DXP 2023.Q4+/Portal GA102+ Display page templates display content at a dedicated URL. To use this URL and view the...
Creating and Managing Display Page Templates
Creating and Managing Display Page Templates Liferay DXP/Portal 7.3+ Display page templates define structures for displaying content at a dedicated friendly URL. See Using Display Page Templates...
Displaying Categories using Display Pages
Displaying Categories using Display Pages Available: Liferay DXP/Portal 7.4+. Using a display page template, you can render web content, documents, and blog entries in a display page. Starting...
Using Information Templates
Using Information Templates Available 7.4+ With Information Templates, you can create FreeMarker templates for any item type that implements the Info Framework. Supported item types include web...
Publishing Content With Display Pages
Publishing Content With Display Pages You can use display page templates to create reusable dynamic designs for displaying content items at their friendly URLs. After designing the template, you...
7.4 Breaking Changes
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...
Maintenance Mode and Deprecations in 7.4
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...
Migrating the Database
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. Liferay DXP provides a...
Preparing for an Upgrade
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...
Maintenance Mode and Deprecations in 7.3
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...
7.4 Deprecations and Breaking Changes
7.4 Deprecations and Breaking Changes
Migrating Your Database to PostgreSQL
Migrating Your Database to PostgreSQL Liferay DXP 2026.Q3+ Migrating a Liferay DXP database to PostgreSQL has two phases. First, export the database schema to SQL files from either Server...
Database Pruning for Faster Upgrades
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...
Renamed Language Keys
Renamed Language Keys In Liferay DXP/Portal 7.4, module language keys were centralized to a module called portal-language-lang. Source location: ...
Post-Upgrade Considerations
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...
Data Cleanup
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...
Common Upgrade Issues
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. ...
Database Tuning for Upgrades
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...
Upgrade Log Context
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...
Updating Customizations
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...
Default Setting and Feature Flag Changes in 7.4
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...
Troubleshooting Upgrades
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...
Upgrade Report
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,...
Upgrading Modules Using Gogo Shell
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...
Updating the File Store
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...
Monitoring Upgrades with MBeans
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...
Example: Removing Intermediate Journal Article Versions
Example: Removing Intermediate Journal Article Versions These instructions and code samples demonstrate removing intermediate Journal Article versions. In the script console, you can remove...
Upgrade Stall Detection
Upgrade Stall Detection Liferay DXP 2026.Q3+ During a database upgrade, Liferay DXP checks the database every 60 seconds and logs queries that appear stalled. You can use these messages to tell...
Migrating Configurations and Properties
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...
Upgrading Clustered and Sharded Environments
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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