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Issue You might get an error when trying to deserialize a session, which looks similar to this: java.lang.IllegalStateException: Error deserializing Session [2522563CC05A5789E25189BD49FFB38C]...

Issue When trying to upgrade Liferay DXP 7.2 to fixpack dxp-8 or higher, the process fails due to the following error: ERROR [Portal Dependency Manager Component Executor--1][UpgradeStepRegistratorTracker:184] Failed upgrade process for module com.liferay.asset.display.page.service...

Issue After upgrading from 6.2 to 7.2, navigating to Control Panel > Users > Password Policies shows a UI error "Password Policies is temporarily unavailable", and an error is thrown in the logs: ERROR [https-jsse-nio-8441-exec-4][PortletRequestDispatcherImpl:304] Unable to dispatch...

Issue Starting from Liferay 7.3, new upgrades for modules won't run automatically on startup by default. Resolution The following options are available to run the upgrades we may include in fix/service packs: Recover the old behavior with the property upgrade.database.auto.run set to...

Issue After successfully upgrading your DB with the db-upgrade tool you might face a similar error to the following one on fresh startup:...

Issue Several warnings get thrown, while the migration tool is trying to upgrade Lock_ table. WARN [main][UpgradeProcess:446] Attempting to upgrade table Lock_ by recreating the table due to: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server...

Issue When running the DB upgrade process from Liferay DXP 7.2 FP5 to Liferay DXP 7.3 GA1, it fails due to Duplicate column name 'defaultVirtualHost':...

Directly modifying the database is not advised because we are unable to provide assistance regarding the damage it might do. The suggested approach in these cases is a groovy script that uses Liferay's API. Environment Liferay DXP 7.0 Liferay DXP 7.1 Liferay DXP 7.2 Resolution Here is a...

HTTP Archive (HAR) files are a format used to track information between a user's browser and site. It can be used to identify performance issues such as slow load times, page renders, or other bottlenecks. This is due in part, because the file tracks the load of resources and how long...

Issue ETAG response header is missing on a page. Environment DXP 7.1 Resolution If a page contains at least one non-cacheable portlet, - such as Asset Publisher -, the ETAG response header is not added by design. The condition whether a portlet is cacheable or not is determined by...

Issue Publishing from Staging takes a very long time Staging performance issues when publishing content Environment Liferay Staging Resolution The most common cause of this is trying to publish large amounts of data at a time. Best Practice is to "publish small, publish often". Don't...

Issue Receiving warnings in the log during the upgrade process about truncated titles/descriptions for certain articles. Example: WARN [ForkJoinPool-5-worker-2][UpgradeJournalArticleLocalizedValues:192] Truncated the description value for article 12345 because it is too long WARN...

Issue Running g! upgrade:check it turns out that a component was not migrated successfully, the output is for example: There is an upgrade process available for ServiceBuilder.service from 0.0.0 to 1.0.0 Upon executing the upgrade, a similar error appears:...

Issue Upgrade from 6.2 to DXP fails with IBM-specific AESSecretKey error, when a user was using IBM JDK for the 6.2 environment. 2020-01-08 13:00:49.267 ERROR [main][Base64:343] java.lang.ClassNotFoundException: com.ibm.crypto.provider.AESSecretKey...

Issue This article documents how to determine the filename that should be used for a Systems Settings configuration file (.config) that can be inserted into $LIFERAY.HOME/osgi/configs. Why? The creation of System Settings .config files permits you to transfer configurations between one...

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, or other changes that are incompatible with an earlier fix pack...

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 documentation Access the home page over 8443 port and observe the network tab in chrome...

This paper is a high-level overview of the effort involved in moving from Liferay DXP 7.1 to 7.2. It contains an upgrade checklist, the upgrade steps, and what to do after a successful upgrade. The paper is available for download here., content:...

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 cover new use cases that digital businesses face everyday.  This whitepaper gives a comparison of the...

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 contains the results based on the scenarios used. The paper is available for download here., content:...