As a best practice, you should use the initial logging
configuration files that are installed by the SAS Deployment Wizard.
However, in some situations it might be necessary to make changes
to the logging configuration. You can use the following methods to
modify a server's logging configuration:
-
You can adjust logging levels dynamically
by using the Server Management features of SAS Management Console.
This feature is useful when you want to change the configuration temporarily
without stopping the server or spawner. See
Using SAS Management Console to Monitor SAS Servers.
-
You can permanently modify a server's
logging configuration by changing its logconfig.xml file. Before modifying
a configuration file, be sure to make a backup copy. The following
are some examples of changes that you might want to make to a server's
logging configuration:
-
configure RollingFileAppender to
use a different log filename, to roll over log files more or less
frequently, or to roll over log files based on file size rather than
date
-
specify additional appenders (for
example, you might want to define a separate rolling file to capture
a particular category of messages)
-
use filters to limit the events
that are written to an appender
-
configure a different message layout
for an appender
For additional options
and detailed configuration instructions, see the
SAS Logging: Configuration and Programming Reference.
-
You can use the alternative logging
configuration files that are provided for troubleshooting. These files
are useful when SAS Technical Support requests a higher level of logging.
For details, see the following topics:
-
If you have installed the SAS Enterprise
BI Audit and Performance Measurement package, you can use the alternative
logging configuration files (called logconfig.apm.xml) that are provided
for use with the package. The package is available for download from
http://support.sas.com/rnd/emi.
The following topics describe other logging changes
that you might want to make:
CAUTION:
Excessive
logging can degrade performance. Therefore, you should not use the
TRACE and DEBUG logging levels unless you are directed to do so by
SAS Technical Support.