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Trouble Starting Portal If 'Java_Home/bin' Is Not Defined in Path Variable
This article describes a known issue where the platform may not start if JAVA_HOME/bin is not defined in the PATH variable. DXP 7.0 and 7.1 requires JAVA_HOME and PATH variables to be set. However, the...
Known Issues with Core-5
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 While the article is no longer maintained, the information may still be applicable.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 a small set of...
DXP Fails to Generate Captchas and Charts on RHEL 7.4
When using RHEL 7.4, and viewing a captcha, or when navigating to Control Panel > Configuration > Server Administration, the following stack trace will appear in the application server logs. That is...
ConcurrentModificationException When Deploying Plugins on Liferay Portal 6.1 EE GA3
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...
Difficulty Adding Assets That Use Alloy Editor on Windows Os in DXP 7.0
This articles serves as a troubleshooting guide for users working in Liferay DXP 7.0. When it comes to adding assets using the alloy editor on Windows OS, you may encounter some difficulties. The browser may display a...
Resolving 'UnsupportedOperationException' Caused by an Invalid Audit Max Queue Size Setting
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...
X-FRAME-Options Reference Guide
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...
Tomcat JDBC Connection Exhaustion
This article helps troubleshooting MySQL when executing the VerifyProcess. Small Max JDBC Connection Pool causes JDBC Connection Exhaustion if the VerifyProcess is executed...
Unicast with JGroups (RMI)
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....
Starting Up a Liferay Bundle From an External Drive on a Mac
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...
Upgrading to Liferay Portal 6.1 EE
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...
Changing the Liferay Logs Directory
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...
Portal Best Practices
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...
Upgrade Process properties are not needed anymore
Prior to Liferay Portal 6.1, the upgrade process required that "upgrade.process" property to be set in the portal-ext.properties. For example, consider an upgrade from Liferay Portal 5.2 to Liferay Portal 6.0...
Liferay Information for Common Databases
The following article contains relevant information for connecting Liferay to some of the more common databases. Resolution   MySQL Oracle Commands http://dev.mysql.com/doc/refman/5.5/en/index.html...
[Upgrade] Handling Quartz Data during Liferay Portal Upgrades
Quartz data is a unique type of data. If quartz data is part of the database upgrade, then there are some potential additional steps to take during the upgrade process. Resolution If there are not any publishing jobs,...
Backslashes in Screen Name Are No Longer Valid After Upgrading to Liferay Portal 6.2
After upgrading from Liferay Portal version 5.2 EE SP4 to 6.2 EE, backslashes in the screen name are not allowed when using the liberal screen name validator. In Portal 5.2, backslashes were allowed in the screen name....
Poor Performance in DB2 When Executing SQL Queries Over Big Tables Filtering by a Column With a Non-Unique Index
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...
Ehcache Configuration for Different Versions of the Liferay Platform
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...
A 'ClassNotFoundException' Thrown by WebLogic 12c
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...