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Resolving 'UnsupportedOperationException' Caused by an Invalid Audit Max Queue Size Setting
legacy Troubleshooting
This article documents steps on how to increase the audit message max queue size that leads to an UnsupportedOperationException.  By default, System Settings > Foundation > Audit > "Audit message max queue size" is set...
ConcurrentModificationException When Deploying Plugins on Liferay Portal 6.1 EE GA3
legacy Troubleshooting
This article outlines a specific known issue that exists within Liferay Portal 6.1 EE GA3 SP3 and provides a link to follow its resolution. Resolution At the time of release, there is one known issue with Liferay...
Unicast with JGroups (RMI)
legacy How To
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....
Tomcat JDBC Connection Exhaustion
legacy Troubleshooting
This article helps troubleshooting MySQL when executing the VerifyProcess. Small Max JDBC Connection Pool causes JDBC Connection Exhaustion if the VerifyProcess is executed...
X-FRAME-Options Reference Guide
legacy How To
This article is to help those who wish to change the X-Frame-Options in Liferay Digital Experience Platforms. Usually, this is required if you are trying embedding widgets in a portlet or an iFrame so that HTTP headers...
Upgrading to Liferay Portal 6.1 EE
legacy How To
With the release of Liferay 6.1 EE GA1, Liferay introduced the Seamless Upgrade feature. Seamless upgrades allow users to upgrade to the latest version of Liferay by simply pointing...
Starting Up a Liferay Bundle From an External Drive on a Mac
legacy Troubleshooting
Whether it's for demo-ing Liferay or for other purposes, you may at some point wish to run a Liferay bundle from an external hard drive. Most of the time, this is straightforward. When...
Changing the Liferay Logs Directory
legacy How To
This article documents how to change the Liferay logs directory from the default [LIFERAY_HOME]/logs to another desired path.  Resolution Steps to Change the Liferay Logs Directory...
Migrating properties which are set through Control Panel to portal-ext.properties file
legacy How To
Important Notification: Modifying the database is a risky operation! Always make a backup of your database before any modifications! If your custom portal properties are already set...
Portal Best Practices
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...
A 'ClassNotFoundException' Thrown by WebLogic 12c
legacy Troubleshooting
This article documents a known issue that occurs when deploying portlets that use JNDI. Liferay Digital Experience Platform (DXP) isn't able to load Weblogic's JNDI classes by default, which often results in a...
Poor Performance in DB2 When Executing SQL Queries Over Big Tables Filtering by a Column With a Non-Unique Index
legacy Troubleshooting
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...
Autodeploying Plugins in WebSphere With Liferay 6.1 EE GA2
legacy How To
Starting with Liferay Portal 6.1 EE GA2, plugins can be autodeployed to WebSphere. As a part of the Liferay autodeploy process, the Liferay platform will call the Websphere's wsadmin script interface to deploy the...
Liferay's "Verify" Process
legacy
This article explains a few key facts surrounding the "verify" process in the Liferay Portal and steps that need to be taken to ensure the integrity of the database being used by the...
Installing Portlets Within the Control Panel in 6.1 GA2
legacy How To
In Liferay Portal 6.1 EE GA2, administrators do not have the ability to deploy plugins from the control panel. In order to achieve the installation of portlets not within Liferay...
Liferay DXP 7.1 Database Portal Properties
legacy How To
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...
Migrating Tag Sets During the Upgrade Process From Liferay Portal 5.2 to 6.0
legacy How To
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...
JBoss EAP vs. JBoss AS
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....
DLFileRank Causes Deadlock or SQL Update Batch Errors
legacy Troubleshooting
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...
Changes in Enabling serviceLocator Calls in Liferay DXP 7.0
legacy How To
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...