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Migrating Tag Sets During the Upgrade Process From Liferay Portal 5.2 to 6.0
Legacy
This article outlines the changes to Tags and Tag Sets between Liferay Portal 5.2 to Liferay Portal 6.0, and later versions. Specifically: The changes to the Tags Navigation Portlet (Where Did Tag Sets Go?) How to...
Exporting Liferay's Database Schema on Oracle
Legacy
In the course of investigating a Liferay platform issue, you may be instructed by Liferay Support to export your database schema in Oracle. The following article contains guidelines...
UDP Multicast Protocols and Firewalls
Legacy
This article is designed to help system administrators troubleshoot a Liferay DXP instance deployed in a clustered environment. Some issues may arise because of too restrictive firewall settings (most, if not all, systems...
Liferay Upgrades: Updating Custom Plugins
Legacy
The following article describes how to update plugins to be compatible with a new version of the Liferay platform. Resolution The Liferay API may change from release to release, causing issues when trying to port...
Liferay DXP 7.1 Database Portal Properties
Legacy
This article is intended to provide a list of all the Liferay DXP 7.1 database properties that can be used to connect your DXP 7.1 installation to various databases. To use any of them, uncomment the block of code you...
Liferay Portal Database Portal Properties
Legacy
This article is intended to provide a list of all of the Liferay Portal Database properties that can be used to connect your portal to various databases. To use any of them, un-comment the block of...
Poor Performance in DB2 When Executing SQL Queries Over Big Tables Filtering by a Column With a Non-Unique Index
Legacy
Liferay Support does not recommend or endorse specific third-party products over others. Liferay is not responsible for any instructions herein or referenced regarding these products. Any implementation of these...
IP Geocoder Temporarily Loss of Connectivity
Legacy
Due to a recent CDN outage, the IP Geocoder module inside Liferay Digital Experience Platform (DXP) 7.0 temporarily lost Internet connectivity; the module requires an active connection to function. There is a console...
Ehcache Configuration for Different Versions of the Liferay Platform
Legacy
This article outlines Liferay configurations for distributed caching along with how to deploy custom tuning configurations. For cache tuning and finding optimal settings for a particular environment, please see the...
Changes in Enabling serviceLocator Calls in Liferay DXP 7.0
Legacy
This article documents a change in where to define serviceLocator properties in Liferay platforms; both in Portal and Digital Experience Platform (DXP). Developers familiar with this functionality in Portal 6.2 can...
Apache Tomcat Security Advisory: CVE-2018-1336
Legacy
General Information CVE-2018-1336 reports that, "an improper handing of overflow in the UTF-8 decoder with supplementary characters can lead to an infinite loop in the decoder causing a Denial of Service." This...
Disabling Specific Built-In Portlets
Legacy
Liferay comes equipped out-of-the-box with a variety of portlets that users may add to their page. For various reasons, however, an administrator may wish to remove some of these...
Before Opening a Portal Deployment Ticket
Legacy
This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. The following article outlines a short...
Apache Struts 1 Known Vulnerabilities
Legacy
QUESTION: How are Liferay DXP 7.0 and 7.1, and Liferay Portal, affected by the following vulnerabilities? CVE-2016-1181: Arbitrary code execution, denial of service CVE-2016-1182: XSS and denial of service...
DLFileRank Causes Deadlock or SQL Update Batch Errors
Legacy
With DLFileRank enabled, Deadlock or SQL Update Batch Errors may happen due to DLFileRank updates. When using DLFileRank, unique constraints can be found due to the amount of writes...
Structures With Duplicate Element Names Fail DDM Verification When Upgrading
Legacy
This article documents a known issue in which structures with duplicate element names fail Dynamic Data Mapping (DDM) verification when upgrading from Liferay Portal 6.1 to Liferay Portal 6.2 or Liferay Digital...
Upgrading to Liferay Portal 6.1 EE GA1
Legacy
When upgrading to the latest version of Liferay Portal, there are many things to take into account. This guide is designed to assist in the upgrading process. Please read and ensure...
SQL Exception Warnings Appear During DXP Upgrade Indicating 'Fallback to recreating the table'
Legacy
This article documents a false negative warning message that can occur when upgrading your Liferay platform, and which has caused some confusion amongst our users. During the Liferay DXP upgrade process, several WARN...
Deploying Xuggler on Windows 64 bit
Legacy
Xuggler is a tool for users to encode and decode media files. Used in conjunction with Liferay Portal or Digital Enterprise 7.0, users can view media files on the Documents and Media...
Fix Pack and Hotfix installation order on Liferay Portal EE
Legacy
The order of fix pack and hotfix updates are determined by engineering in several ways. This order is hardcoded in the update. Environment Versions previous to Portal 6.2 SP11...
Declining One Event of a Repeating Event Declines Every Repeating Event
Legacy
This article documents how declining one event of a Repeating Event declines every repeating event. For example, if there is a weekly repeating event and a user declines that event in...
Setting Up Liferay Portal on a DB2 Database
Legacy
This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. This article outlines steps on how to setup...
Upgrading to Liferay Portal 6.0 EE SP2
Legacy
This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. When upgrading to the latest Liferay...
Liferay Information for Common Application Servers
Legacy
This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. Resolution...
Avoiding a Batch Error When Defining Friendly URLs
Legacy
This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. If you...
Liferay DXP Javadocs
Legacy
For developers, Liferay has created a set of documentation (Javadocs) that provide API and code detail for working with Liferay DXP's core software. To access the Javadocs, follow either one of the following...
Deploying Plugins via Administration Console
Legacy
This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. There are multiple application servers...
Anonymizing Data
Legacy
Preserving anonymity of users when providing data to Liferay may be a concern for certain use-cases. The following guidelines should assist in determining which data should be anonymized and finding...
Issues With Setting Time Zone Settings on the JVM Level
Legacy
Liferay Support does not recommend or endorse specific third-party products over others. Liferay is not responsible for any instructions herein or referenced regarding these products....
Using the Data Migration Tool in Liferay DXP 7.1
Legacy
This article documents how to use the data migration tool in the Server Administration section of Liferay Digital Experience Platform (DXP) 7.1. The Data Migration Tool allows administrators to migrate data quickly...
Inputting Initial S3 Configuration Settings on DXP 7.0
Legacy
This article serves as a reference for how to configure Liferay Digital Experience Platform (DXP) to use Amazon Web Services S3. DXP users can leverage Amazon S3 in two key areas; to serve as a file store repository,...
Upgrading to Liferay Portal 6.0 EE SP1
Legacy
When upgrading to the latest Liferay Portal, there are many things to take into account. This guide is designed to assist in the upgrading process. Please read and ensure your...
System-ext.properties Reference Guide
Legacy
This article serves as a reference guide for how to set system wide properties through the system-ext.properties file. Similar to the relationship between the portal.properties and portal-ext.properties files,...
Stopping Liferay DXP 7.0 LPKG Modules
Legacy
This article documents which LPKG files can be disabled with little or no negative effects as part of Liferay's introduction of modularity in Liferay DXP 7.0. Because certain core functionalities have been turned into...
Understanding Languages in Liferay Portal
Legacy
Liferay Portal is designed to handle as many languages as you want to support. This is done by pulling out all language specific text and storing it in the language.properties files....
Moving Existing Data From an Old Liferay bundle to a New One
Legacy
This article provides a checklist when you move your existing data from an old Liferay environment to a new one. Resolution For database, please backup the database in old environment and import it to the new environment....
Creating a Backup/Disaster Recovery Environment for Liferay Portal
Legacy
This article gives an overview of a backup/disaster recovery environment that is necessary when starting a Liferay Portal project. This backup will often be referenced by Liferay Support Engineers as it is...
Managing Time Zones in DXP 7.0
Legacy
This article documents how to change the time zone in your Liferay DXP 7.0 environment. Given that users are working with the Liferay platform from all over the world, it is important to have the ability to change...
Thread Contention: A Common Performance Issue in DXP 7.0
Legacy
This article documents a common performance issue related to Thread Contention within Liferay DXP 7.0. Read below for the necessary information about this issue and how to navigate through it. Resolution...
Too Many CPU Intensive Tasks: A Common Performance Issue in DXP 7.0
Legacy
This article documents a common performance issue related to running Too Many CPU Intensive Tasks within Liferay DXP 7.0. Continue reading to discover the necessary information about this issue and how to...