How to Enable Additional Debug Logging

Teamscale can be configured to print detailed debug log messages for specific parts of the application. This can be helpful to better comprehend Teamscale's behavior.

In this example, we want to enable debug logging for all classes inside the com.teamscale.core.authenticate.ldap package.

Inside the config folder of your Teamscale directory, you will find the configuration file log4j2.yaml with the default configuration and the following commented-out example:

Configuration:
  appenders: # The appenders define how messages are logged.
#    File:
#      # This appender (if uncommented) writes all messages to logs/ldap.log.
#      # This appender is referenced by name LdapLog in the logger configuration below.
#      - name: LdapLog
#        fileName: logs/ldap.log
#        PatternLayout:
#          Pattern: "* %-5level [%threadName] %date:%variablesNotEmpty{ %mdc{job}:} %message%n"
  Loggers: # The loggers define which messages are routed to which appenders.
    Logger:  
#      # Configuration for the "LdapLog" file appender example above that also logs level info# to the appender.
#      - name: com.teamscale.core.authenticate.ldap # name of the package which should be #handled by this logger
#        level: info
#        additivity: true # when set to false, root logger will not receive events already logged here
#        AppenderRef:
#          ref: LdapLog # name of the appender that is served by this logger

In order to enable debug logging in our sample scenario, you will need to enable the commented-out sections and set the level to debug.

Configuration:
  appenders: # The appenders define how messages are logged.
    File:
      # This appender (if uncommented) writes all messages to logs/ldap.log.
      # This appender is referenced by name LdapLog in the logger configuration below.
      - name: LdapLog
        fileName: logs/ldap.log
        PatternLayout:
          Pattern: "* %-5level [%threadName] %date:%variablesNotEmpty{ %mdc{job}:} %message%n"
  Loggers: # The loggers define which messages are routed to which appenders.
    Logger:
      # Configuration for the "LdapLog" file appender example above that also logs level info to the appender.
      - name: com.teamscale.core.authenticate.ldap # name of the package which should be handled by this logger
        level: debug
        additivity: true # when set to false, root logger will not receive events already logged here
        AppenderRef:
          ref: LdapLog # name of the appender that is served by this logger

If you would like to (or were asked to) increase the log level for a different package, you may put that package's name into the name property of the additional logger.

Of course you can also add several new loggers for different packages at the same time.