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Resolving a "The expression syntax is invalid" Error During the UpgradeDDMStructure Phase of the Liferay DXP Upgrade Process.
legacy Troubleshooting
This article describes a known issue in the Forms portlet when upgrading from DXP 7.0 to DXP 7.1+. During the upgrade, a validation error is thrown as follows: Unable to upgrade the visibility expression "equals(Options,...
What HTTP METHODS/VERBS does Liferay DXP use?
legacy
Issue Which HTTP Methods does Liferay DXP use? We would like to restrict HTTP traffic using a firewall and do not want to impact Liferay DXP functionalities. Environment Liferay DXP 7.0+ Resolution Liferay DXP...
How do I perform an integration test for customizations for Liferay DXP 7.1?
legacy
Issue Our team would like to use the LiferayIntegrationTestRule and perform an integration test. How do we set up an integration test? Environment Liferay DXP 7.1 Resolution Liferay leaves the integration testing...
Preparing a Sybase Database for Liferay
legacy How To
Issue Are there any specific configurations needed when setting up a Sybase database to connect to a Liferay bundle? Environment Sybase 15.7, 16 Liferay Portal 6.1, 6.2 DXP 7.0, 7.1 Resolution Unlike other database...
Disabling Calendar Email Notifications in DXP
legacy How To
Issue In Liferay Portal 6.1, calendar notifications could be disabled using portal-ext.properties In Liferay DXP 7.0+, these properties no longer exist Environment Liferay DXP 7.0+ Resolution NOTE:...
Starting Servers in the Correct Sequence
legacy How To
Issue What is the correct sequence to start up all servers during a restart? Environment DXP 7.0, 7.1 Resolution Sometimes it is necessary to restart some if not all of the servers that Liferay DXP runs on or is...
Virtual Host Login/Logout Properties
legacy
This article documents four portal properties that are often used to configure redirection URLs for users. The four descriptions below include the properties, their descriptions, and examples for: Configuring the...
Upgrade Tool Uses Wrong Version of Tomcat
legacy Troubleshooting
Issue When upgrading to Liferay DXP 7.0 or DXP 7.1 and using the SP1 + Tomcat bundle, the wrong version of Tomcat is suggested by the Upgrade Tool For 7.1 the bundle includes Tomcat 9.0.6, but the...
JDK Certification, Java TCK Compliance, and Liferay
legacy
With the release of JDK11, Oracle's new Java SE Support Policy (also see here) brings changes to the Java Enterprise community. The following article outlines Liferay's approach concerning the certification of JDK...
Testing if Liferay Clustering is Working Properly
How To
Issue How can I confirm that my Liferay cluster is working correctly and all nodes displays the same information accurately? Environment DXP 7.x Portal 6.x Resolution There are two ways that to accomplish this: 1....
If a Staging publication is on progress and the server is shut down, publication stays on queue and no further publications are possible
legacy Troubleshooting
Issue If a publication on staging is made and the server is shut down, the publication will stay on queue on start-up and, even if cancelled, no more staging publications can be made. The following java class stays...
JDK7 Concerns
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.  JDK7 is...
Deploying Activation Keys
legacy How To
This document has been updated and ported to Liferay Learn and is no longer maintained here. This article documents the basic instructions for how to deploy your Activation Key via the...
Installing Archived Modules From Liferay's Public Repository
legacy How To
This article is a how-to guide for locating, downloading and installing modules from Liferay’s public repository. Installing modules directly from Liferay’s public repository should be done if the module or application...
SQL Scripts Causing Duplicate Keys
legacy Troubleshooting
 While using a new instance of the Liferay Portal, some environments may encounter the following error: ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found Resolution This...
Taking Heap Dumps From a JVM
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....
Taking Thread Dumps From a JVM
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....
Liferay Web Proxy Module for Digital Experience Platform 7.1
legacy How To
The Web Proxy Portlet allows web applications to be embedded within a portlet while keeping the user interaction within the portal context. The portlet is deprecated and was removed from Digital Experience Platform...
Managing Distributed Cache in Liferay DXP
legacy How To
This document has been updated and ported to Liferay Learn and is no longer maintained here. This article documents the configuration options for managing distributed cache within Liferay Digital Experience...
Before Opening a Liferay Performance Ticket
legacy Troubleshooting
The following article outlines a short checklist of questions to ask and steps to take before opening a performance ticket. By taking a moment to go through this checklist before...