17C H A P T E R 1 7

Configuring Logging

This chapter briefly describes how to configure logging and view the server log. It contains the following sections:

“About Logging” on page 165

“Configuring Logging” on page 168

About Logging

“Log Records” on page 165

“The Logger Namespace Hierarchy” on page 166

Log Records

The Enterprise Server uses the Java EE platform Logging API specified in JSR 047. Enterprise Server logging messages are recorded in the server log, normally found at domain-dir/logs/server.log. When a log is rotated, Enterprise Server creates a new, empty file namedserver.log and renames the old fileserver.log_date, where date is the date and time when the file was rotated.

The components of the Enterprise Server generate logging output. Application components can also generate logging output.

Application components may use the Apache Commons Logging Library to log messages. The platform standard JSR 047 API, however, is recommended for better log configuration.

Log records follow a uniform format:

[#yyyy-mm-ddThh:mm:ss.SSS-ZLog LevelProductName-VersionLoggerNameKey Value PairsMessage#]

For example:

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Sun Microsystems 820433510 manual Configuring Logging, About Logging, Log Records