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Setting Up and Configuring MySQL Database With Liferay Portal
legacy How To
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...
Issues With Setting Time Zone Settings on the JVM Level
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....
Creating a Backup/Disaster Recovery Environment for Liferay Portal
legacy
This article gives an overview of a backup/disaster recovery environment that is necessary when starting a Liferay Portal project. This backup will often be referenced by Liferay Support Engineers as it is...
Apache Tomcat Security Advisory: CVE-2018-1336
legacy Troubleshooting
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...
Understanding Languages in Liferay Portal
legacy How To
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
legacy
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...
Avoiding a Batch Error When Defining Friendly URLs
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 While the article is no longer maintained, the information may still be applicable. If you...
Deploying the Liferay Platform on WebSphere Network Deployment Edition
legacy How To
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...
Setting Up the Liferay Platform on Microsoft Azure
legacy How To
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...
Upgrading to Permission Algorithm 6
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. Permission algorithm 5 was used as the default...
Liferay server is not reachable with the error "HTTP 404" on the browser
legacy Troubleshooting
Issue When accessing the server on the browser, the server is unreachable with the error HTTP 404 and the following error is observed on the Liferay logs. ERROR...
Important Changes in Fix Pack Release Notes
legacy
Issue Some fix packs cannot be reverted or may have hard limits on which versions that the patch level can be reverted to. The reason why a rollback option is unavailable is due to database schema updates, plugin updates,...
Why is the server now timing out users after 15 minutes instead of 30?
legacy How To
Issue After updating past de-68 for Liferay DXP 7.0 or past dxp-5 for Liferay DXP 7.1 users are now timing out after 15 minutes. Environment Liferay DXP 7.0 using the Tomcat application server Liferay DXP...
SSL/TLS communication when connecting to the database
legacy
Please be aware that the page you are viewing has been machine translated from Japanese into English and may contain some translation errors. If you observe any issues with the translation, please contact us. Issue Is...
Logging Mechanism for Liferay Database Pool
legacy How To
Issue 1. How to increase the logging around connection pool which can help to understand the activities within the connection pool? 2. What other container-managed database connection pool can be used instead of c3p0?...
Unable to search results which are greater than 10000
legacy Troubleshooting
Issue  The total number of count displayed in pagination is 10,000 due to which the assets present after 10,000 are not searchable. For Example: If there are 12,000 users in the portal, the users above 10,000...
Unable to resolve portal host java.net.UnknownHostException:[HOSTNAME] Name or service not known
legacy Troubleshooting
Issue When starting up the Tomcat server I get the following stacktrace: WARN [catalina-exec-15][PortalImpl:7173] Unable to resolve portal host java.net.UnknownHostException: [tomcat-host] Name or service not...
Portal has upgraded successfully and NullPointerException is thrown with the server startup
legacy Troubleshooting
Issue Successfully upgraded the Liferay portal from 6.2EE to DXP 7.1 GA but the server is not started and thrown the NPE Null pointer Exception: 2019-09-13 01:11:59.750 ERROR [http-nio-8080-exec-1][MainServlet:1225]...
Errors in the log file of the type "Redirect URL is not allowed" and seemingly unrelated symptoms
legacy Troubleshooting
Issue There are traces in Liferay's logs resembling this: 2019-08-27 08:46:42.641 WARN [http-nio-8080-exec-4][PortalImpl:1003] Redirect URL .... is not allowed Additionally, some other issues appear at the same time:...
EXT Plugin not deploying
legacy Troubleshooting
Issue EXT Plugin not deploying correctly through the methods presented in the documentation: Deploying an Ext Plugin Environment Liferay DXP 7.1 Resolution Deploy the EXT Plugin to marketplace/override folder...
"Too Many Open Files" error in log
legacy Troubleshooting
Issue "Too Many Open Files" error is reported in the log. For example: 2019-05-06 09:41:20,142 SEVERE [org.apache.tomcat.util.net.NioEndpoint] Socket accept failed java.io.IOException: Too many open files at...
How to programmatically undeploy a module in DXP 7.1?
legacy How To
Issue I want to undeploy a module from my code, usig API I tried using DeployManagerUtil.undeploy(context), but nothing happens Environment Liferay DXP 7.1 Resolution If you are trying to undeploy a module by its context...
Child pages not displayed in Navigation Menu after upgrading to Liferay 7.2
legacy Troubleshooting
Issue After upgrading the portal to Liferay DXP 7.2, the child pages which were present in Liferay Portal 6.2 go missing from the Navigation menu in DXP 7.2. But, the child pages are present in Site Builder....
Error java.lang.OutOfMemoryError: Metaspace
legacy Troubleshooting
Issue When there's a lot of traffic or usage, the logs show an error similar to: 2019-11-12 07:39:54.538 ERROR [liferay/scheduler_dispatch-24][ParallelDestination:55] Unable to process message...
java.sql.SQLException: Incorrect string value and no Display Templates listed for the Breadcrumb widget
legacy Troubleshooting
Issue On startup, the server will print errors similar to these: ERROR [main][JDBCExceptionReporter:234] Incorrect string value: '\xE5\x9F\xBA\xE6\x9C\xAC...' for column 'name' at row 1 WARN...
Reference tag in service builder service.xml is not allowing to have MBMessage reference
legacy Troubleshooting
Issue Creating service module with reference <reference entity="MBMessage" package-path="com.liferay.message.boards" /> in service.xml. gradle buildService fails with  Exception in thread "main"...
Image not getting displayed in Interner Explorer 11 post upgrade from Liferay Portal 6.2 to Liferay DXP 7.1
legacy Troubleshooting
Issue Post upgrade from Liferay Portal 6.2 to Liferay DXP 7.1, the web content articles created using structure and template with an embedded image field will not display the respective image on IE 11 i.e....
Liferay DXP 7.2 Database Portal Properties
legacy
This document has been updated and ported to Liferay Learn and is no longer maintained here. This article is intended to provide a list of all the Liferay DXP 7.2 properties that can be used to connect the database of your...
Cannot see calendar events after upgrade from 6.1 to DXP
legacy Troubleshooting
Issue After performing an upgrade from a Liferay 6.1 version to a DXP version, I cannot see the calendar events. Apparently the upgrade didn't handle them. Environment Portal 6.1 -> DXP Resolution There is s separate tool...
robots.txt is not updated despite being saved correctly in UI
legacy Troubleshooting
Issue Updating robots information for pages will show outdated information despite being saved correctly. Environment Liferay DXP 7.0, 7.1, 7.2 Resolution The value of host header in the request and the...
How Liferay portal upgrades the content?
legacy How To
Issue The portlet id('s) which has included in the content of the web content portlet is not getting updated after upgrading the portal. Environment Liferay portal 6.2EE Liferay DXP 7.0 Resolution How Liferay works?...
Change root context to custom context
legacy How To
Issue How to change the portal context from ROOT to something else? Can I append "xxx" to all the portal URL? Environment Liferay DXP 7.4 Liferay DXP 7.3 Liferay DXP 7.2 Liferay DXP 7.1 Liferay Portal 6.2 JBoss EAP 7.1 /...
Nested Applications portlet causes com.liferay.portal.kernel.servlet.NonSerializableObjectHandler on Weblogic
legacy Troubleshooting
Issue When adding the Nested Applications to a page, the logs show the error com.liferay.portal.kernel.servlet.NonSerializableObjectHandler You can't add portlets to the Nested Applications Environment...
How to configure/use outlook mail server to send email notifications in Liferay
legacy Troubleshooting
Issue While configuring outlook mail through Liferay mail configuration the below exception is thrown : " Could not connect to SMTP host: smtp.office365.com, port: 587"  OR ERROR...
How to disable Scripting Console
legacy How To
Issue Even if Scripting Console is restricted to those with the server administration role, we would like to disable this scripting functionality in our 7.0 portal. Environment DXP 7.0 Resolution Scripting from...
CacheFilter Expiration time
legacy How To
Issue The cache filter caches processed web content.  To change the cache expiration time to live ehcache.xml needs to be modified. So where can we set the expiration time. Environment Liferay DXP 7.0 Resolution The...
How to use JDBC ping for DXP 7.1 dockerized cluster in Kubernetes
legacy Troubleshooting
Issue We have a 7.1 cluster in Kubernetes with docker image Liferay nodes. We don't know in advance what IP address would be assigned to Liferay containers. As the pods can get killed and then the cleanup does not...
Redirection is not happening
legacy Troubleshooting
Issue After setting the below property with the following values in portal-ext.properties, redirection to the defined domain has not happened rather its showing warning messages. #...
Different Browser Cache Behaviour on HTTPs Protocol in Google Chrome
legacy Troubleshooting
Issue Not all of the static requests are cached in Google Chrome, when you follow this documentation to set up HTTPs: Setting Up HTTPs on Tomcat Reproduction steps: Set up the portal as per attached...
No portlet bag for {id=0, companyId=0, portletId=xxxxx, roles=, active=true} reported during import process
legacy Troubleshooting
Issue When publishing from staging to live, or importing lar into a new site, the following error is reported: 11:09:48,470 ERROR [liferay/background_task-1][StagingServiceHttp:153]...
Is there a limit to the number of calendar events that can be displayed?
legacy
This article has been machine translated from its original language for your convenience. Please use discretion as this translation may include some inaccuracies. If you encounter issues with the translation, please...
After building the theme with code changes, the changes are not reflected in the UI as well as in the source code.
legacy Troubleshooting
Issue When customizing the theme by modifying the source code of Liferay 7.1, the changes are not reflected in the UI as well as in the source code of the theme. Environment Liferay DXP 7.1 Resolution Please Note:...
Benchmark Study of Liferay DXP 7.2
legacy
This whitepaper is a benchmark study of Liferay Digital Enterprise 7.2 and describes optimal configuration, settings, and the methodology used for this study. The whitepaper also...
Retrieving custom cache entity fails with error
legacy Troubleshooting
Issue The custom cache entity we introduced to Liferay is inaccessible. We configured our custom cache in override-liferay-multi-vm-clustered.xml. When trying to access the custom cache entity from scripting console...
LCS Activation Page redirect
legacy Troubleshooting
Issue The portal redirects automatically to the LCS Activation Page even with activation tokens deployed. Environment Liferay DXP 7.0+ Resolution  Regenerate the LCS tokens, but with "Liferay Instance Activation"...
Calendar Event invitation mail is sent to the user before the approval of event
legacy Troubleshooting
Issue If the workflow is applied for the Calendar Event, the user who is invited to that particular event gets an email invitation even before the approver approves the event. Environment Liferay DXP 7.0...
How to resolve AnnotationExceptions encountered during startup when updating 7.0 to de-67+ while using WebSphere
legacy Troubleshooting
Issue Using WebSphere FP 11 as our application server, we are unable to start up a 7.0 deployment after patching to de-67, and are receiving an AnnotationException in the log, as follows: Annotation processing failed...
How can I disable Liferay's xml log file?
legacy Troubleshooting
Issue In {Liferay_Home}/log folder, we can see two different files as below:      liferay.2019-08-25.log      liferay.2019-08-25.xml We only want "liferay.2019-08-25.log" file and need to disable "xml" file. Environment...
Setting different landing pages on different cluster nodes upon session timeout
legacy How To
Issue The users have to be redirected to different pages - depending on the nodes -, when the sessions expire. A possible use case: One of the Application Servers is an admin server, thus the admins need to...
Login issue when configuring the SSL on JBoss EAP 7.0
legacy How To
Issue Login issue when configuring the SSL on JBoss EAP 7.0 Environment Portal: Liferay DXP 7.0 Application Server: JBoss EAP 7.0 Operating System: Ubuntu 19.04 Resolution Please Note: The following procedures and...
How to test the Liferay API behavior
legacy
This article has been machine translated from its original language for your convenience. Please use discretion as this translation may include some inaccuracies. If you encounter issues with the translation, please...
About log rotations
legacy
This article has been machine translated from its original language for your convenience. Please use discretion as this translation may include some inaccuracies. If you encounter issues with the translation, please...
DXP 7.2 Service Pack 1 (SP1) - New Improvements for Data Consistency
legacy
Liferay DXP 7.2 Service Pack 1 (SP1) includes changes that further improve data consistency within the Liferay platform. Highlights: Additional Liferay services now have Multiversion Concurrency Control (MVCC) enabled...
About automating the setup wizard
legacy How To
This article has been machine translated from its original language for your convenience. Please use discretion as this translation may include some inaccuracies. If you encounter issues with the translation, please...
Liferay DXP Feature Comparison
legacy
Each version of Liferay improves on the features and functionality of previous versions.  Since the release of Liferay Portal 6.2 EE, the Liferay platform has continued to evolve to...
DB2 SQL Errors during the database creation
legacy Troubleshooting
Issue There are DB2 SQL errors during the database creation in the server startup, causing messages in the log like the following:  2019-09-19 07:38:30.286 ERROR [main][ReleaseManagerOSGiCommands:93] bundle...
Access denied error message is thrown in the browser with XML format of the rest API
legacy Troubleshooting
Issue After passing the authorization in the HTTP header and while hitting the URL http://localhost:8080/o/greetings/morning, the web service responds to the request with the below error message [XML format] in the...
When I shut down DXP from the Control Panel, the end users get a blank page and no warning message
legacy How To
Issue I go to Control Panel > Server Administration > Shutdown and shut down the server After DXP was shut down and I refresh the page, only a blank screen appears There used to be a warning message in Liferay 6.2...
Tips for minor updates in the infrastructure (application server, database server, ...)
legacy
Issue Sometimes, there is the need to update the infrastructure (application server, database server, elasticsearch server, etc.), to benefit from security fixes, performance improvements or others. Minor...
Liferay DXP and S3 security
legacy
Issue Does Liferay support server-side encryption on Amazon S3? Is Liferay calling S3 over HTTPS only? Will Liferay work on a restricted S3 bucket without public access? Environment Liferay 7.0 DXP Liferay 7.1...