java.util.logging (JUL)¶

Tomcat uses JUL as the default logging framework. The configuration is described in http://tomcat.apache.org/tomcat-7.0-doc/logging.html and http://tomcat.apache.org/tomcat-8.0-doc/logging.html.

The default configuration is located at /usr/share/pki/server/conf/logging.properties. During server deployment a link will be created at /etc/pki/<instance>/logging.properties.

By default only log messages with level WARNING or higher will be logged on the console (i.e. systemd journal).

java.util.logging.ConsoleHandler.level = ALL
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter
java.util.logging.SimpleFormatter.format = %4$s: %5$s%6$s%n
.level = WARNING
.handlers = java.util.logging.ConsoleHandler

The systemd journal can be viewed with the following command:

$ journalctl -u pki-tomcatd@<instance>.service

For more information see the following documents:

- https://docs.oracle.com/javase/8/docs/api/java/util/logging/ConsoleHandler.html
- https://docs.oracle.com/javase/8/docs/api/java/util/logging/Level.html
- https://docs.oracle.com/javase/8/docs/api/java/util/logging/SimpleFormatter.html
- https://docs.oracle.com/javase/8/docs/api/java/util/Formatter.html

Log4j¶

The default Tomcat 7 classpath does include Log4j, but the server itself is not configured to use Log4j for logging by default. However, since the Log4j is in the classpath the RESTEasy will use Log4j for logging automatically (see https://docs.jboss.org/resteasy/docs/3.0.6.Final/userguide/html/Installation_Configuration.html#RESTEasyLogging).

The default Log4j configuration is located at /usr/share/pki/server/conf/log4j.properties. During server deployment a link will be created at /var/lib/pki/<instance>/lib/log4j.properties.

By default only log messages with level WARN or higher will be logged on the console (i.e. systemd journal).

log4j.appender.console = org.apache.log4j.ConsoleAppender
log4j.appender.console.Target = System.err
log4j.appender.console.layout = org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern = %p: %m%n
log4j.rootLogger = WARN, console

The default Tomcat 8 classpath does not include Log4j, so RESTEasy will use JUL instead.

For more information see the following documents:

- http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/ConsoleAppender.html
- http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html
- http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/PatternLayout.html

Internal Logging¶

Each PKI subsystem uses an internal logging framework for debugging purposes.

The logging configuration is stored in /etc/pki/<instance>/<subsystem>/CS.cfg.

debug.enabled=true
debug.level=0
debug.filename=/var/lib/pki/<instance>/logs/<subsystem>/debug
debug.hashkeytypes=
debug.showcaller=false

The debug.enabled determines whether the debug log is enabled. By default it is enabled.

The debug.level determines the amount of details to be logged. The value ranges from 0 (most details) to 10 (least details). The default is 0.

The debug.filename determines the debug log file location. By default it is located at /var/lib/pki/<instance>/logs/<subsystem>/debug.

The debug.hashkeytypes is a comma-separated list of additional components to log. By default it's empty.

The debug.showcaller determines whether to include the caller information in the log message. By default it's disabled.

java.util.logging (JUL)¶

To customize JUL configuration, replace the link with a copy of the default configuration:

$ rm -f /etc/pki/<instance>/logging.properties
$ cp /usr/share/pki/server/conf/logging.properties /etc/pki/<instance>
$ chown pkiuser.pkiuser /etc/pki/<instance>/logging.properties

Then edit the file as needed. For example, to troubleshoot issues with PKI library add the following lines:

netscape.level = ALL
com.netscape.level = ALL
org.dogtagpki.level = ALL

To troubleshoot issues with RESTEasy add the following line (unless Log4j is installed in Tomcat classpath):

org.jboss.resteasy.level = ALL

Then restart the server.

Log4j¶

To customize Log4j configuration, replace the link with a copy of the default configuration:

$ rm -f /var/lib/pki/<instance>/lib/log4j.properties
$ cp /usr/share/pki/server/conf/log4j.properties /var/lib/pki/<instance>/lib
$ chown pkiuser.pkiuser /var/lib/pki/<instance>/lib/log4j.properties

Then edit the file as needed. For example, to troubleshoot issues with RESTEasy add the following line (unless Log4j is not installed in Tomcat classpath):

log4j.logger.org.jboss.resteasy = ALL

Then restart the server.

Internal Logging¶

To customize the internal logging configuration, edit the CS.cfg as needed, then restart the server.