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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....
Permissions Are Not Working Post-Upgrade
legacy Troubleshooting
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...
Load Balancing Can Return Null
legacy Troubleshooting
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...
LDAP settings and upgrading from 5.2.x to 6.x
legacy Troubleshooting
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...
Application Server Times Out While Downloading/Uploading Documents
legacy Troubleshooting
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
legacy How To
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
legacy Troubleshooting
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...
Difficulty Adding Assets That Use Alloy Editor on Windows Os in DXP 7.0
legacy Troubleshooting
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...
DXP Fails to Generate Captchas and Charts on RHEL 7.4
legacy Troubleshooting
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...
Resolving 'UnsupportedOperationException' Caused by an Invalid Audit Max Queue Size Setting
legacy Troubleshooting
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...
ConcurrentModificationException When Deploying Plugins on Liferay Portal 6.1 EE GA3
legacy Troubleshooting
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...
Poor Performance in DB2 When Executing SQL Queries Over Big Tables Filtering by a Column With a Non-Unique Index
legacy Troubleshooting
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...
Backslashes in Screen Name Are No Longer Valid After Upgrading to Liferay Portal 6.2
legacy
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....
[Upgrade] Handling Quartz Data during Liferay Portal Upgrades
legacy How To
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,...
Ehcache Configuration for Different Versions of the Liferay Platform
legacy How To
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...
Migrating properties which are set through Control Panel to portal-ext.properties file
legacy How To
Important Notification: Modifying the database is a risky operation! Always make a backup of your database before any modifications! If your custom portal properties are already set...
A 'ClassNotFoundException' Thrown by WebLogic 12c
legacy Troubleshooting
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...
Applying Fix Pack 37 Causes Duplicate Entry of 'com.liferay.rss.web.internal.util.RSSFeed' for Key 'IX_B27A301F'
legacy Troubleshooting
This article documents a known issue when updating to Liferay DXP 7.0 Fix Pack 37 or higher. During the update process, the following error exists in the console: java.lang.RuntimeException:...
Errors When Applying Support Driven Hotfixes Based on FP-41 or FP-42
legacy Troubleshooting
This article documents a known issue when applying a Liferay Support Driven Hotfix built off either DXP 7.0 Fix Pack 41 or Fix Pack 42. Due to an error generating the release notes, the documentation.xml file in Fix...
Internal Server Error after Upgrade
legacy Troubleshooting
A common error is that sometimes when certain pages display an internal server error and there is no stacktrace. If there was a custom theme before the upgrade the page layouts will still reference them and if one has not...
Deploying Xuggler on Windows 64 bit
legacy Troubleshooting
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...
Before Opening a Portal Deployment Ticket
legacy How To
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 article outlines a short...
Declining One Event of a Repeating Event Declines Every Repeating Event
legacy Troubleshooting
This article documents how declining one event of a Repeating Event declines every repeating event. For example, if there is a weekly repeating event and a user declines that event in...
SQL Exception Warnings Appear During DXP Upgrade Indicating 'Fallback to recreating the table'
legacy
This article documents a false negative warning message that can occur when upgrading your Liferay platform, and which has caused some confusion amongst our users. During the Liferay DXP upgrade process, several WARN...
Fix Pack and Hotfix installation order on Liferay Portal EE
legacy
The order of fix pack and hotfix updates are determined by engineering in several ways. This order is hardcoded in the update. Environment Versions previous to Portal 6.2 SP11...
Apache Struts 1 Known Vulnerabilities
legacy
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...
Upgrading to Liferay Portal 6.0 EE SP1
legacy How To
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
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. Resolution...
Document versioning won't display versions after 1.9 is entered
legacy Troubleshooting
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...
Common Causes for the Properties in the 'portal-ext.properties' Not Taking Effect
legacy Troubleshooting
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
legacy How To
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...
Checklist for Upgrading to Liferay DXP
legacy How To
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...
Migrating File System Stores
legacy How To
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...
Installing Fixes That Involve Updates to Database Tables
legacy Troubleshooting
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...
Installing DXP in a Clustered Environment
legacy How To
This document has been updated and ported to Liferay Learn and is no longer maintained here. Many enterprise environments utilize clustering for both scalability and availability. This article provides specific...
Ehcache Configuration for DXP 7.x
legacy How To
This document has been updated and ported to Liferay Learn and is no longer maintained here. This article documents how to implement distributed caching on Liferay DXP 7.x and how to deploy custom tuning...
Accessing Data Stored on Non-Liferay Databases
legacy How To
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...
フォームからアップロードしたコンテンツの保存先
legacy How To
, knowledgeArticleType: howTo, legacy: true, name: フォームからアップロードしたコンテンツの保存先, showDisclaimerMessage: true, sourceTeam: Support, ticketNumber: 131903, title: フォームからアップロードしたコンテンツの保存先
DXP アップグレード
legacy How To
, knowledgeArticleType: howTo, legacy: true, name: DXP アップグレード, showDisclaimerMessage: true, sourceTeam: Support, ticketNumber: , title: DXP アップグレード