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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. Manually Test the Cache Replication Functionality To manually test this,...

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 has been deprecated, archived or otherwise not distributed with the...

 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 error occurs do to an error in the creation of sample data by the create-*.sql scripts. This results in...

This article documents the basic instructions for how to deploy your Activation Key using an .xml file. The steps will vary slightly depending on the version of the Liferay platform you are using. If you encounter any issues along the way, see this separate Troubleshooting Activation Key...

This article is intended to provide a list of all the Liferay DXP 7.0 Database properties that can be used to connect your DXP 7.0 installation to various databases. To use any of them, uncomment the block of code you need, and paste it into your portal-ext.properties file. For example,...

The purpose of this article is to provide an example of how to set up a basic Tomcat cluster that has session replication, using built-in Tomcat features. Please note: This example is provided as a courtesy. This configuration is not supported by Liferay Support as it deals with Tomcat,...

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 (DXP) 7.1 due to low adoption. The portlet will not be released as an app...

This article is designed to help administrators tune performance in Liferay DXP 7.0 when the active thread count approaches the maximum allowed thread count. The reason for this performance issue is because the values for the...

One of the most important pieces of information when resolving a customer issue is the portal-ext.properties file for your environment. It is now possible to upload the portal-ext.properties file before opening a ticket. This article describes what you need to know to locate your...

This article serves as a troubleshooting guide. During a thread dump, your server may hang indefinitely due to the blocking portal cache. Blocking portal cache is one of the caches that the Liferay platform uses for clustering; it is not a hibernate cache, it is what Liferay uses with...

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 describes the scenario where the Carousel portlet (a third party app made by XTIVIA) and Ehcache...

This article addresses a situation where customers might encounter a BadPaddingException in the logs. This occurs if customers have two instances on the same domain; when a user tries to access another instance on the same domain, the exception will be thrown. 2018-05-31 03:10:32.353...

This article documents the common configuration errors you may encounter while upgrading to Liferay Digital Experience Platform (DXP), versions 7.0 or 7.1. Read below to discover the steps you can take to resolve these issues or avoid them altogether. Resolution Error: Upgrading to DXP...

This article documents a solution if subscribers are using an Oracle database and using JDBC_ping as the discovery protocol in a clustered environment. The issue is that the JGroup's default initialize_sql value is incompatible with Oracle. As a result, the JGROUPSPING table is not...

This article documents the new implementation of JavaScript Object Notation (JSON) web services in Liferay Portal 6.1.x to test API methods. The only limitation is that to test any methods they must go through JSON. A database other than Hypersonic will be required for API testing as...

This article describes how to set up Liferay Portal 6.1 EE or Liferay Portal 6.2 EE using Windows and MySQL 5.x on Apache Tomcat 7.x. Resolution 1. Gather the Necessary Files Download and unzip the most recent supported version of Tomcat 7: http://archive.apache.org/dist/tomcat/tomcat-7/...

In some cases, JGroups may not get a response when trying to bind to an address. In this case, an exception like the following can be thrown: 05:50:53,559 ERROR [Framework Event Dispatcher: Equinox Container: 70881daa-756e-0016-1bfa-e3d1d4e1b271][com_liferay_portal_cluster_multiple:97]...

  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 are working with a Liferay Portal version prior to 6.1 GA3, you can read the article here. SAML...

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. Beginning in Liferay 6.0 EE SP2, the "addedbyLDAPImport" column was added to the usergroup table. The purpose of...

This article provides a brief checklist of items to run through when your server is frozen, or goes down entirely. Collecting this information before opening a support ticket is a significant step towards helping us to provide you with a quick resolution. Resolution To help our Support...

After an upgrade to Portal 6.1 EE GA1 when clicking on Control Panel > Portal settings, an error pops up: 11:53:46,699 ERROR [BeanPropertiesImpl:480] jodd.bean.BeanException: Simple property not found: hostname Invalid property: 'AccountImpl#hostname' (actual:'AccountImpl#hostname',...

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 comprises a list of issues that administrators have experienced in running an upgrade, along with...

Clustering with the Liferay platform can be achieved by using UDP Multicast, UDP Unicast and TCP Unicast. While Multicast is being used by default, there are cases where UDP Multicast is not available or disabled at the infrastructure level. In such cases, TCP Unicast can be used for...

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 Portal 6.1 EE GA3 SP3. In this version of Liferay, a...

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 ReferenceError: CKEDITOR is not defined, and the console may...

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 at 200. The value is supposed to be greater than 0. This specific...

This article will help users by providing instructions for setting up MySQL on your machine, creating a new database, and then connecting Liferay Portal to that database. Resolution Installing MySQL Double click the MySQL version that you have obtained, either workbench or 5.1+ are...

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 principles is the responsibility of the subscriber. One commonly asked...

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 need, and paste it into your portal-ext.properties file. For example,...

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 enable or disable this property to allow specific calls in Freemarker or...

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 that are done to the database. Many times it is helpful to take a look at the constraint that is causing...

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 portlets from the pool of available portlets. Fortunately, this can be achieved either in the control panel...

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 portlet. The integration with Liferay is a .jar file downloadable from the Control Panel. There is a...

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 Portal, there are many things to take into account. This guide is designed to...

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 Experience Platform 7.0 or 7.1. For customers who are upgrading their Liferay...

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 your environment is ready prior to performing the upgrade. Resolution These instructions should be used if...

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 CVE-2012-1007: Multiple cross-site scripting vulnerabilities CVE-2015-0899: Remote...

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 modules using the OSGi framework, there are benefits which have been...

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. This way, when a page loads, Liferay Portal will detect the language, pull up the corresponding language...

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 instructions. For the zip file, navigate to the Liferay DXP 7.0 Fix...