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If a Staging publication is on progress and the server is shut down, publication stays on queue and no further publications are possible
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
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 While the article is no longer maintained, the information may still be applicable.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
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
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
 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
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
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
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...