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Setting up the Portal Instance Name (Website Name) in Liferay DXP 7.1
legacy Troubleshooting
Issue The website name is set by default as Liferay DXP. This name can be set to a new name by making changes in instance settings( Configuration-> Instance Settings -> Configuration -> Main Configuration ->...
How to check if an LPS or LPE fix is included in a Fix Pack
legacy How To
Issue How do I check if a certain fix (exp. LPS-XXXXX) is included within a Fix Pack? How do I check if a certain fix (exp. LPE-XXXXX) is included within a Fix Pack? Environment Liferay DXP 7.2  Resolution Step1:...
Knowledge base AssetCategory API
legacy How To
Issue I want to automatically categorize knowledge base articles. I have built the functionality to download articles, assign categories, and save them back. What I am missing is the ability to get the existing...
Can I disable the System Check that is running on startup in my Development environment?
legacy Troubleshooting
Issue During Liferay's startup, the following message in the logs indicates that a system check is being run: INFO [main][SystemCheckOSGiCommands:111] Running "Declarative Service Soft Circular...
Setting Site Member Role Permissions
legacy How To
Issue How can I change/edit permissions for a Site Member Role? Environment Liferay 7.0 Liferay 7.1 Resolution Permissions for the Site Member Role can be found at: Control Panel > Users > Roles > Site Roles Tab >...
Slow Performance or OutOfMemory errors due to StripFilter
legacy Troubleshooting
Issue The StripFilter in Liferay DXP removes blank lines from Javascript, CSS, and other files. While this can result in slightly faster load times for dial-up users, it can also result in a big...
Restricting/Disabling the Default Liferay DXP (Guest) Site access.
legacy
Issue The '/web/guest' associated with the domain name will redirect to the default DXP site. Suppose there are two sites, site1 and site2 mapped to domains www.domain1.com and www.domain2.com                ...
Restart required after every Jar Deployment
legacy Troubleshooting
Issue When the jar is deployed, it is not reflected until and unless the server is restarted Environment Liferay DXP 7.0 Resolution Sometimes, the jar is deployed and is not reflecting on the portal until and unless...
Users with no email address should be able to log in and access the portal.
legacy How To
Issue Users having no email address should be able to log in and access the portal. Environment Liferay DXP 7.0 Liferay Quarterly Releases  Resolution Creating a user with no email address. By setting the...
Users Not Appearing in Control Panel After Upgrading Liferay Version
legacy Troubleshooting
Issue Users are not appearing in the Control Panel > Users > Users and Organizations section after upgrading to a newer Liferay version. Environment Liferay DXP 7.0, 7.1 Resolution 1. Remove...
Where is com.liferay.portal.cache.ehcache.impl.jar
legacy
Issue Unable to find the com.liferay.portal.cache.ehcache.impl.jar for download Environment Liferay DXP 7.1 Resolution "com.liferay.portal.cache.ehcache.impl-version.jar" is located inside "/osgi/marketplace/Liferay...
When an image with a link to page field is published to live on remote staging, publication fails
legacy Troubleshooting
Issue When an image is uploaded on staging and is going to be published to live an error is displayed. Happens when using a Document type with a Link to page field. The Link to page field is not required. The Link to...
Several JGroups messages related to "Accept view MergeView" are appearing in a clustered node
legacy Troubleshooting
Issue Liferay's Cluster Link cache replication makes use of JGroups. There are instances when several JGroups messages related to "Accept view MergeView" are appearing while the cluster is running. Environment Liferay DXP...
Why are entries in my Liferay DXP bundle (such as Organization Types) duplicating every restart
legacy Troubleshooting
Issue In some situations there have been reports of OSGi entries within a Liferay DXP 7.1 bundle replicating every restart. At first there is one entry for a given configuration, then following a restart there...
Unable to Edit any options in Site settings of a Site.
legacy Troubleshooting
Issue Unable to Edit any options in Site settings. That is from: The home page, not able to edit and select the layout/theme. Also, from Control Panel-> Sites-> Select site-> Edit was not able to change the...
NullPointerException and blank page after redeploying JSP fragment module
legacy Troubleshooting
Issue We start with a state where we have a jsp fragment deployed and is working fine.  We then make a change to that module and do a hot deployment.  After that, the page on which the fragment is being used shows only the...
Liferay DXP 7.1 Upgrade Performance Benchmark
legacy
The Liferay Support and Liferay Engineering tuned Liferay 6.2 EE databases for upgrade and tested upgrading them to Liferay DXP 7.1. Databases from several vendors were tested. This whitepaper describes the test...
Removing Product Information Displayed in the HTTP Headers
legacy How To
Issue Customers might want to remove the product information found in the HTTP Headers and in the console logs for security reasons. The information displays: Liferay-Portal: Liferay Digital Experience Platform 7.0.10...
ORMException / StaleObjectStateException is reported
legacy Troubleshooting
Issue The following ORMException and StaleObjectStateException are reported in the log 2019-03-25 01:59:12.172 ERROR [http-nio-8080-exec-9][MainServlet:525] com.liferay.portal.kernel.exception.SystemException:...
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...
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...
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,...
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...
Changing the Liferay Instance's Log Time Zone Without Modifying the JVM Time Zone
How To
Introduction By default, Liferay's JVM uses the UTC (GMT) timezone for scheluding jobs and displaying the correct dates in the presentation layer. However, you can change the time zone...
Limitation: Audience Targeting User Segment Cannot Use Physical Screen Size MDR
legacy Troubleshooting
This article documents a limitation when viewing content based on a User Segment in the Audience Targeting app that uses the Physical Screen Size attributes as a Mobile Device Rule. It was discovered that users could...
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...
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:...
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...
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...
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...
DXP 7.3 Upgrade Reference Guide
legacy How To
An upgrade to Liferay DXP 7.3 gives you access to the latest Liferay technology, complete with all of the newest features, and the assurance of continued support for your Liferay environment. Our Subscription Services Team...
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...
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....
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...
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...
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...
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...