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Can Liferay run using a JRE instead of a JDK?
legacy Troubleshooting
Issue I am using a Java JRE and encountering errors such as: A fatal error has been detected by the Java Runtime Environment Environment Liferay DXP Liferay Portal Resolution Liferay DXP/Portal requires a TCK-certified...
"Column count doesn't match value count at row 2" error occurs while upgrading to 2024.q1.1 using MariaDB as database
legacy Troubleshooting
Issue Upgrading Liferay DXP 7.3 to Quarterly 2024.q1.1 shows the error "Column count doesn't match value count at row 2" in the log. Environment 2024.q1 MariaDB 10.4 Resolution A possible cause is that the...
ERR_SSL_PROTOCOL_ERROR occured in the browser while attempting to access Liferay login page at http://IP:8080/c/portal/login
legacy Troubleshooting
Issue While accessing the Liferay login page after hitting http://IP:8080/c/portal/login, it shows the below SSL error on the browser's UI. "This site can’t provide a secure connection IP(10.x.x.x) sent an invalid...
When will Java 17 be supported?
legacy
Issue I believe Java 17 is necessary for Spring 6 compatibility, and for being ready for the future of many Java libraries, I think Liferay should be compatible to Java 17 as soon as possible. Resolution We are working...
Java EL Expression Performance Issue after Upgrade
legacy Troubleshooting
Issue I recently updated to Liferay 7.4 and I'm seeing performance issues. I have custom JSP files with EL Expressions (expressions like ${expressionName}) deployed. In thread dumps taken during the performance...
Non-Productive Nodes can see Productive Nodes after switching to JDBCPing
legacy Troubleshooting
Issue In the context of having the Non-Productive environment and the Productive environment within the same network, there are MergeView traces in logs where nodes from non-productive and productive environments...
Email notification using incorrect SMTP server in Virtual Instance
legacy Troubleshooting
Issue When using virtual instances with separate SMTP server configurations, email notifications are sent using the SMTP server of a different instance instead of the correct instance's SMTP server. Environment...
Set up the Apache web server and connect it to Tomcat-based Liferay using mod_jk
legacy How To
Issue How can we install an apache web server and connect the same with the application server over a Linux-based operating system? Environment Liferay DXP 7.4 Resolution The following are the steps that...
Not able to change the change the Hello World in Client extension
legacy
Issue Javascript client extension is not working, which can change the Hello World! text with Hello UserName! when the user deploys the below Liferay sample module:...
ReadCount column removed from DLFileEntry table
legacy
Issue We are upgrading from Liferay DXP 7.0 to 7.4 and noticed that the ReadCount column of the DLFileEntry table has disappeared post-upgrade. Could you please provide us with some information how this column is...
"Constraint Violation in UpgradeListTypeType" error in upgrade
legacy Troubleshooting
Issue When attempting to upgrade, it has been observed an error when transitioning from a bundle prior to U100 to a bundle between U100 and U103. Any attempt to upgrade beyond U103 results in a failure with the...
Possibility of improving SEO removing "/-/" from friendlyURL
legacy
Issue When the user uses the default Liferay Blogs and clicks on Read More, the URL implicitly contains "/blog/-/blogs/" along with the friend URL part. However, the user needs to just have '/blog/' instead of...
Environment becomes unstable after number of file descriptors has steadily increased
legacy Troubleshooting
Issue A Liferay environment with a frontal element has become unstable after running for a few days. Checking the system's health, there has been a steady increase of open file descriptors. Environment Liferay DXP...
How can I tell if a portlet is being used?
legacy How To
Issue I would like to know if a portlet is being used or not in my Liferay instance Our Liferay instance has many virtual hosts, each virtual host has many sites, each site with many pages We cannot do the check manually...
What is the 'instance-id' field?
legacy
Issue What is the instace-id or instanceId field and what is it used for? Environment All Liferay versions Resolution It's a random alphanumeric value. Liferay uses this value to be able to identify the field...
How to check Preferences from table PortletPreferences on 7.4
legacy
Issue On DXP 7.2 you could check the portlet preferences directly in PortletPreferences table but now on DXP 7.4 is different Environment DXP 7.4 Resolution Now on 7.4 there is a new table:...
Remove/ Restrict the 'Delta' parameter from the URL
legacy
Issue Users can change the value of the 'delta' parameter in the URL and the entries of the page are seen as per the value provided in the parameter. If a higher number is provided in the delta, the performance...
Is it possible to separate Liferay module jars and custom jars in osgi/modules directory in the Quarterly Release
legacy Troubleshooting
Issue After upgrading to Quarterly Release 2023.Q3, Liferay modules are now stored in osgi/modules directory. Is it possible to separate Liferay module jars and custom jars in osgi/modules directory in the Quarterly Release?...
Configure Custom 404 error Page on WebLogic Server
legacy How To
Issue How to redirect users to a Custom Page for Error Code 404 when Liferay DXP is deployed on the WebLogic Server? Environment Liferay DXP 7.4 Resolution Create a 404 Custom Error page (e.g mypage.html)...
BatchUpdateException when upgrading to Liferay Quarterly Release with SQL Server
legacy Troubleshooting
Issue We have received a recent report where a BatchUpdateException was identified while upgrading from an earlier Liferay DXP 7.4 update to Liferay Quarterly Release while using SQL Server You may see an error such as the...