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If a Staging publication is on progress and the server is shut down, publication stays on queue and no further publications are possible
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
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 While the article is no longer maintained, the information may still be applicable.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
This document has been updated and ported to Liferay Learn and is no longer maintained here.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
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
 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
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
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
This document has been updated and ported to Liferay Learn and is no longer maintained here.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
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...
Application Server Times Out While Downloading/Uploading Documents
When uploading documents larger than 3Mb via web call, an error may be thrown: 13:45:27,141 INFO [PortalImpl:4366] Current URL /documents/10162/179749/Certification+Tracking+Database+CSC+v2.0+Production.zip...
Including portal-ext.properties in Help Center Tickets
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...
Performance Issue for Thread Counts While Processing JSP files
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...
Transactional Cache or Blocking Portal Cache Causes the Portal to Hang
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...
Resolving 'BadPaddingExceptions' in the Console Logs
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...
Common Upgrade Errors for Liferay DXP
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...
Carousel Portlet Prevents Ehcache Plugin From Loading With a 'ClassNotFoundException'
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...
Setting Up Liferay WAR on Tomcat 7
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...
Testing JSON Web Services in Liferay
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...
Cluster Nodes Are Not Connected When Using Jdbc_Ping on an Oracle Database
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...
Quick Start Guide to SAML on Liferay Portal 6.1 EE GA3
  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...
Cannot Obtain Lock During Startup on DXP 7.0
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:...
User's group membership not updating with LDAP after upgrading to Liferay Portal 6.0 EE SP2
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...
High Priority Issue Checklist
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...
Before Opening an Upgrade Ticket
The following article outlines a short checklist of questions to ask and steps to take before opening an upgrade ticket. By taking a moment to go through this checklist before opening a request, you are ensuring the...
Error when going to Portal Settings After Upgrading to Liferay Portal 6.1
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...
Issues Encountered with Upgrades to Liferay Portal EE Versions
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...
Clustering With TCP Unicast
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...
Errors and Redirect Issues While Using the Control Panel
This article describes navigational/redirect issues while using the Control Panel when accessing the Liferay platform through a domain (web server or not). The symptoms of this behavior are somewhat random, but...
Setting Up Liferay Portal on JBoss 6 EAP
This article will outline how to set up JBoss 6 EAP and deploy Liferay 6.1 EE and 6.2 EE to this application server. Resolution Before You Begin, download JBoss EAP 6.0.1 or 6.1, and...
Liferay-JBoss Integration
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...
PDFBox Causing JVM Crashes
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 an issue inherent...
Upgrading to Liferay Portal 6.0 EE SP1
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...
Liferay Information for Common Application Servers
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...
Document versioning won't display versions after 1.9 is entered
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. Upon...
Avoiding a Batch Error When Defining Friendly URLs
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...
Anonymizing Data
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...
Deploying Plugins via Administration Console
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...
Managing Time Zones in DXP 7.0
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...
Too Many CPU Intensive Tasks: A Common Performance Issue in DXP 7.0
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...
Setting Up the Liferay Platform on AWS EC2
This article is a guide to help users set up, install and cluster Liferay DXP 7.0 or 7.1 on AWS Elastic Compute Cloud (EC2).  Resolution EC2 Instance Set Up There are 2 kinds of EC2 instances: (1)...
Setting Up the Liferay Platform on Microsoft Azure
This article outlines what Microsoft Azure is, how to create a Virtual Machine (VM) to run on the Liferay platform and how to configure the Liferay platform with Azure. Resolution What is Azure? Microsoft Azure is a...
Installing Fixes That Involve Updates to Database Tables
We understand that some customers have security policies which compel them to use the Liferay platform to connect to the database as a user that does not have elevated privileges; privileges to change the...
Upgrading to Permission Algorithm 6
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. Permission algorithm 5 was used as the default...
Checklist for Upgrading to Liferay DXP
Upgrading to Liferay DXP (7.0, 7.1, 7.2, or 7.3) is a major project and requires careful planning, testing and execution in order to be successful. However, Liferay DXP and DXP Cloud...
Modifying Cache Size, Time To Live and Replication in DXP 7.0
This article documents how to work with your cache in Liferay DXP 7.0, in order to modify its size, time to live (TTL) and replication. Resolution Modify Default Cache Sizes and Entry TTLs A potential source of...
Migrating File System Stores
This article documents how to use the Data Migration tool in the Server Administration section of Liferay DXP 7.0. The Data Migration Tool allows administrators to migrate data quickly between Documents and Media...
Accessing Data Stored on Non-Liferay Databases
Liferay will support our API and resolve any issues and answer any questions having to do with the API itself or any other part of Liferay's software. Issues and questions regarding custom development may be handled...
Setting Up Liferay Portal on a DB2 Database
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...
Apache Tomcat Security Advisory: CVE-2018-1336
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...
Issues With Setting Time Zone Settings on the JVM Level
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
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...
Moving Existing Data From an Old Liferay bundle to a New One
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....
Understanding Languages in Liferay Portal
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....
Stopping Liferay DXP 7.0 LPKG Modules
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...
Liferay DXP Javadocs
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 the Liferay Platform on WebSphere Network Deployment Edition
This article documents how to deploy Liferay Portal 6.2 or Liferay DXP (7.0 or 7.1) on WebSphere Application Server with Network Deployment (commonly abbreviated ND). The Network Deployment Edition is a tool that...
Common Causes for the Properties in the 'portal-ext.properties' Not Taking Effect
This article documents the circumstances for when properties in the portal-ext.properties are not working correctly. This article also discusses common causes for the properties in the portal-ext.properties not...
Removing '/web/' From Auto-Generated URLs
This article documents how the Liferay platform will automatically generate URLs appended with /web/, which can also be changed to a friendly URL. This may be an issue for those who do...
Setting Up Session Replication in Weblogic With Liferay Portal
This article outlines how to set up session replication using Weblogic with Liferay Portal. This documentation is for reference only. Configuring session replication is not recommended...