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DXP 7.0 Database Portal Properties
legacy
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...
Setting up Session Replication in Tomcat With Liferay DXP
legacy
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...
If a Staging publication is on progress and the server is shut down, publication stays on queue and no further publications are possible
legacy
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...
Creating a Backup & Disaster Recovery Plan for Liferay Digital Experience Platforms
legacy
This article gives an overview of a backup & disaster recovery environment that is necessary when starting a Liferay Digital Experience Platform (DXP) project. This backup will often be referenced by Liferay Support...
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 While the article is no longer maintained, the information may still be applicable.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...
Liferay Web Proxy Module for Digital Experience Platform 7.1
legacy
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...
Changing the Log Time Zone Without Changing the JVM Time Zone
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 While the article is no longer maintained, the information may still be applicable. This...
Installing Archived Modules From Liferay's Public Repository
legacy
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
 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...
Permissions Are Not Working Post-Upgrade
legacy
After upgrading from Liferay Portal 5.2, permissions settings may act in an undesirable manner. This could include not being able to change permissions, as well as not being able to access the control panel or any other...
Managing LDAP Settings Using .config Files
legacy
This document has been updated and ported to Liferay Learn and is no longer maintained here. This article documents how to configure LDAP settings using .config files instead of the Control Panel. There are a great...
Managing Distributed Cache in Liferay DXP
legacy
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
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
legacy
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...
Testing if Cluster Link is Working
legacy
Issue How can I test if the cluster link is connected and working? Environment DXP 7.x Portal 6.x Resolution There are two ways that this can be accomplished: 1. Manually test that the cache replication is working...
Deploying Activation Keys
legacy
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...
Using a Web Server With the Liferay Platform
legacy
This article documents which properties should be configured if a web server sits in front of Liferay. If you do not set the following properties, you may encounter one of these issues. There could be UI issues such as...
Load Balancing Can Return Null
legacy
When running Liferay with more than one node on a load balancer, sometimes, when generating urls for buttons, they can receive a incorrect url or sometimes a null value. Resolution...
Rolling Restart - Breaking Changes
legacy
Introduction When applying fix packs or hotfixes, rolling restarts are possible if there are no changes to a specific set of clustering classes or no module schema version changes. The following document is a list of...
Changes in Liferay DXP Clustering
legacy
This article documents several changes with the clustering feature that will take effect in Liferay Portal CE 7.0 and Digital Experience Platform 7.0. In addition, this article details changes that may affect...
Taking Thread Dumps From a JVM
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....
Taking Heap Dumps From a JVM
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....
Managing Distributed Cache in Liferay Portal EE
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. Any implementation of these...
User's group membership not updating with LDAP after upgrading to Liferay Portal 6.0 EE SP2
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. Beginning in Liferay 6.0 EE SP2, the...
Including portal-ext.properties in Help Center Tickets
legacy
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...
PropsUtil causing NullPointerException at startup
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. 
 When starting up the application server,...
Resolving 'BadPaddingExceptions' in the Console Logs
legacy
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...
Performance Issue for Thread Counts While Processing JSP files
legacy
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...
LDAP settings and upgrading from 5.2.x to 6.x
legacy
This article pertains to portals in which LDAP is configured in Liferay Portal 5.2.x and an upgrade is performed. When a user attempts to login, an error is thrown, and the user is not...
Installing Liferay Portal in a Clustered Environment
legacy
Many enterprise environments utilize clustering for both scalability and availability. This article provides specific instructions for installing a basic configuration of Liferay Portal in a pre-existing clustered...
Transactional Cache or Blocking Portal Cache Causes the Portal to Hang
legacy
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...
High Priority Issue Checklist
legacy
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
legacy
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...
Carousel Portlet Prevents Ehcache Plugin From Loading With a 'ClassNotFoundException'
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. This...
Error when going to Portal Settings After Upgrading to Liferay Portal 6.1
legacy
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
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...
Before Opening a Clustering Ticket
legacy
This article provides a short checklist of questions to ask and steps to take before opening a clustering ticket in Help Center. By taking a moment to go through this checklist before opening a Help Center request, you...
PDFBox Causing JVM Crashes
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. This article describes an issue inherent...
Cluster Nodes Are Not Connected When Using Jdbc_Ping on an Oracle Database
legacy
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...
Testing JSON Web Services in Liferay
legacy
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...
Setting Up Liferay WAR on Tomcat 7
legacy
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...
Known Issues with Core-5
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. This article outlines a small set of...
ConcurrentModificationException When Deploying Plugins on Liferay Portal 6.1 EE GA3
legacy
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...
Upgrade halts with "ALTER TABLE" exception
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. Liferay Support does not recommend or...
Clustering With TCP Unicast
legacy
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
legacy
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...
Common Upgrade Errors for Liferay DXP
legacy
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...
Avoiding SAXParser Exceptions
legacy
By default, the Liferay platform does not define a SAXParser. But please note that a SAXParser contains the logic that can parse XML files. Liferay does not define a SAXParser because certain setups (e.g....
Trouble Starting Portal If 'Java_Home/bin' Is Not Defined in Path Variable
legacy
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...
DXP Fails to Generate Captchas and Charts on RHEL 7.4
legacy
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...
Setting Up Liferay Portal on JBoss 6 EAP
legacy
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...
Difficulty Adding Assets That Use Alloy Editor on Windows Os in DXP 7.0
legacy
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...
Image Editor Does Not Load on Websphere
legacy
This article documents an issue where the image editor does not load on WebSphere, as well as steps to resolve the issue or avoid it altogether. This issue is caused by one of the JS files served within the JS editor...
Resolving 'UnsupportedOperationException' Caused by an Invalid Audit Max Queue Size Setting
legacy
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...
Common Errors with Database Sharding in DXP 7.0
legacy
This article documents the issues with setting up a sharded database and lists steps to resolve the issue or avoid it altogether. Resolution Error: Users are unable to create content specifically on a sharded database...
Cannot Obtain Lock During Startup on DXP 7.0
legacy
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:...
Liferay-JBoss Integration
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. Any implementation of these...
NamingException Error on WebSphere 6.x
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. When Liferay Portal is running on a...
Quick Start Guide to SAML on Liferay Portal 6.1 EE GA3
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.  If you are working with a Liferay Portal...
X-FRAME-Options Reference Guide
legacy
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...