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Guest User can download the attachment from Knowledge Base
legacy Troubleshooting
Issue The guest user can download the attachments present in the Knowledge Base Article  1. Create a Knowledge Base Article add an attachment to that article.  2. Now remove all the guest permission from that article....
After upgrading to Liferay 7.1+, guest users cannot see some web contents
legacy Troubleshooting
Issue After upgrading to Liferay DXP 7.1+, guests users cannot see some web contents. This is also reproduced for users that aren't members of one site. They cannot see web contents that belong to that site. Environment...
After upgrading to JDK 11, Tomcat can not be started due to "NoClassDefFoundError: javax/xml/bind/DatatypeConverter"
legacy Troubleshooting
Issue After upgrading to JDK 11, Tomcat can not be started due to "NoClassDefFoundError: javax/xml/bind/DatatypeConverter" 28-Aug-2019 05:40:11.346 SEVERE [main] org.apache.catalina.core.StandardContext.listenerStart...
"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....
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...
Service Packs and Fix Packs Overview
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...
JGroups IllegalArgumentException After Installing Fix Pack 1 on Liferay DXP 7.2
legacy Troubleshooting
Issue After installing fix pack dxp-1-7210 with cluster.link.enabled=true the following exception is generated: Caused by: java.lang.IllegalArgumentException: JGRP000001: configuration error: the following properties...
How to restrict the JSON web services API page
legacy
Issue JSON web services API page is being exposed through the URL http://[address]:[port]/api/jsonws. Environment Liferay Portal 6.2 Resolution Liferay Portal 6.2 doesn't have any out of the box option to...
Action Button on pages are not working as expected
legacy Troubleshooting
Issue While clicking the action button of the Public Pages the menu appears and then disappears. Environment Liferay DXP 7.1 Resolution The observed behavior is a known issue and is fixed in liferay-fix-pack-dxp-10 and...
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 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 /...
No page can be displayed due to "Unsupported template" errors
legacy Troubleshooting
Issue DXP may not be able to display any portal pages due to HTTP 500 status as well as showing this error on the interface: An unexpected system error occurred. Unsupported template manager ftl and this one in...
How to know which of the nodes is being displayed
legacy How To
Issue On a cluster environment, sometimes its helpful to know in which of the nodes you are. This could be useful to check the load balanced or cluster replication issues. Environment Portal 6.2 DXP 7.0 DXP 7.1 DXP...
How to resolve deployment issues following the installation of Fix Pack DXP-12 for Liferay DXP 7.1
legacy Troubleshooting
Issue Please bear in mind that special considerations should be taken after applying the Fix Pack 12 (DXP-12). After the installation of DXP-12, it has been reported that deployment errors related to several core...
Work folder under Liferay Home
legacy
Issue After upgrading to Liferay DXP we noticed that a work folder is created in {Liferay_Home}, in addition to {Tomcat_Home}/work directory. Is this the normal behaviour? Environment Liferay DXP 7.0 Liferay...
Restarting JBoss node hangs at JGroups.connect() when using multicast
legacy Troubleshooting
Issue If I have a multinode cluster using multicast replication, and I set  multicast.group.address["cluster-link-udp"] Restarting a node sometimes hangs when initializing JGroups channels. Environment Liferay...