11 Studio Logging

Studio logging helps you to monitor and troubleshoot your Studio application.

• About logging in Studio
  Studio uses the Apache Log4j logging utility.
• About the Log4j configuration XML files
  The primary log configuration is managed in portal-log4j.xml, which is packed inside the portal application file WEB-INF/lib/portal-impl.jar.
• About the main Studio log file
  For Studio, the main log file (bdd-studio.log) contains all of the log messages.
• About the metrics log file
  Studio captures metrics logging, including all log entries from the com.endeca.portal.instrumentation classes.
• Configuring the amount of metrics data to record
  To configure the metrics you want to include, you use a setting in portal-ext.properties. This setting applies to both the metrics log file and the Performance Metrics page.
• About the Studio client log file
  The Studio client log file collects client-side logging information. In particular, Studio logs JavaScript errors in this file.
• Adjusting Studio logging levels
  For debugging purposes in a development environment, you can dynamically adjust logging levels for any class hierarchy.
• Using the Performance Metrics page to monitor query performance
  The Performance Metrics page on the Control Panel displays information about component and Dgraph Gateway query performance.