|  | 1 | = Trac Logging = | 
                          |  | 2 | [[TracGuideToc]] | 
                          |  | 3 |  | 
                          |  | 4 | Trac supports logging of system messages using the standard [http://docs.python.org/lib/module-logging.html logging module] that comes with Python. | 
                          |  | 5 |  | 
                          |  | 6 | Logging is configured in the {{{[logging]}}} section in [wiki:TracIni trac.ini]. | 
                          |  | 7 |  | 
                          |  | 8 | == Supported Logging Methods == | 
                          |  | 9 |  | 
                          |  | 10 | The log method is set using the `log_type` configuration option, which takes any of the following values: | 
                          |  | 11 | '''none'':: Suppress all log messages. | 
                          |  | 12 | '''file''':: Log messages to a file, specified with the `log_file` option in [wiki:TracIni trac.ini]. | 
                          |  | 13 | '''stderr''':: Output all log entries to console ([wiki:TracStandalone tracd] only). | 
                          |  | 14 | '''syslog''':: (UNIX) Send messages to local syslogd via named pipe `/dev/log`. | 
                          |  | 15 | '''eventlog''':: (Windows) Use the system's NT eventlog for Trac logging. | 
                          |  | 16 |  | 
                          |  | 17 | == Log Levels == | 
                          |  | 18 |  | 
                          |  | 19 | The verbosity level of logged messages can be set using the ''log_level'' directive in [wiki:TracIni trac.ini]. The log level defines the minimum level of urgency required for a message to be logged. | 
                          |  | 20 |  | 
                          |  | 21 | The levels are: | 
                          |  | 22 | '''CRITICAL''':: Log only the most critical (typically fatal) errors. | 
                          |  | 23 | '''ERROR''':: Log failures, bugs and errors. | 
                          |  | 24 | '''WARN''':: Log warnings, non-interrupting events. | 
                          |  | 25 | '''INFO''':: Diagnostic information, log information about all processing. | 
                          |  | 26 | '''DEBUG''':: Trace messages, profiling, etc. | 
                          |  | 27 |  | 
                          |  | 28 | ---- | 
                          |  | 29 | See also: TracIni, TracGuide, TracEnvironment |