What activities are logged and how?

The platform's log is compatible with common Java logging frameworks such as Log4J, SLF4J, and JUL.

Logging in Nuxeo is configured through a Log4J XML file: `$NUXEO_HOME/lib/log4j.xml`.

By editing that file, you can set logging rules (log level by file and component, file rotation, etc.).

The Log4J log levels are: ERROR, WARN, INFO, DEBUG, and TRACE.

You can increase or decrease the logs for specific services.

The location of the log files depends on the `nuxeo.log.dir` parameter. By default, Nuxeo generates the following log files (also available in the platform's Admin tab and in the Control Panel):

• Launcher logs
• nuxeoctl.log
• console.log
• Server logs
• nuxeo-error.log
• stderr.log
• classloader.log (Catalina errors)
• tomcat.log

In addition to these logs, activity information is also available in the product's user interface:

• Repository statistics: Provides statistics about your application's content (number of documents, versions, largest folder size, etc.).
• Repository binaries: Calculates statistics for the binaries and allows for the removal of unused ones (those deleted from the UI but still stored on the server).

• Users Sessions: Provides information on who is logged in to the Platform.
• Total number of active HTTP sessions: The number of user active user session on the UI.
• Total number of HTTP requests: The number of requests for page and dynamic resources served by JSF/faces.
• List active sessions within a duration.
• Events: Lists the events that occurred on the platform. You can filter this list to only get the events from a specific user or only events from a specific category.
• Background work: Provides information on the asynchronous tasks performed by the server, such as video conversion when a video is imported.
• Repository Analytics: Provides statistics on the repository. You can filter these statistics on a specific time period.
• Search Analytics: Provides statistics on the queries done by users and how search filters are used.
• The Nuxeo Event Bus displays statistics about the processing of listeners.
• The Logs tab displays the content of the server log files. You can also download the full log files.