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- Timestamp:
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Jul 17, 2018, 2:09:57 PM (6 years ago)
- Author:
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trac
- Comment:
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2 | 2 | [[TracGuideToc]] |
3 | 3 | |
4 | | Trac supports logging of system messages using the standard [http://docs.python.org/library/logging.html logging module] that comes with Python. |
| 4 | Trac supports logging of system messages using Python's [http://docs.python.org/library/logging.html logging module]. |
5 | 5 | |
6 | | Logging is configured in the `[logging]` section in [wiki:TracIni#logging-section trac.ini]. |
| 6 | Logging is configured in the [TracIni#logging-section "[logging]"] section of TracIni. |
7 | 7 | |
8 | 8 | == Supported Logging Methods |
9 | 9 | |
10 | | The log method is set using the `log_type` option in [wiki:TracIni#logging-section trac.ini], which takes any of the following values: |
| 10 | The log method is set using the [TracIni#logging-log_type-option "[logging] log_type"] option, which accepts the following values: |
11 | 11 | |
12 | 12 | '''none'':: Suppress all log messages. |
13 | | '''file''':: Log messages to a file, specified with the `log_file` option in [wiki:TracIni#logging-section trac.ini]. Relative paths in `log_file` are resolved relative to the `log` directory of the environment. |
14 | | '''stderr''':: Output all log entries to console ([wiki:TracStandalone tracd] only). |
15 | | '''syslog''':: (UNIX) Send all log messages to the local syslogd via named pipe `/dev/log`. By default, syslog will write them to the file /var/log/messages. |
16 | | '''eventlog''':: (Windows) Use the system's NT Event Log for Trac logging. |
| 13 | '''file''':: Log messages to a file, specified with the [TracIni#logging-log_file-option "[logging] log_file"] option. Relative paths for `log_file` are resolved relative to the environment `log` directory. |
| 14 | '''stderr''':: Output log entries to console ([TracStandalone tracd] only). |
| 15 | '''syslog''':: (UNIX) Send log messages to the local syslogd via named pipe `/dev/log`. By default, syslog will write them to the `/var/log/messages` file. |
| 16 | '''eventlog''':: (Windows) Use the system's NT Event Log. |
17 | 17 | |
18 | 18 | == Log Levels |
19 | 19 | |
20 | | The verbosity level of logged messages can be set using the `log_level` option in [wiki:TracIni#logging-section trac.ini]. The log level defines the minimum level of urgency required for a message to be logged, and those levels are: |
| 20 | The verbosity level of logged messages can be set using the [TracIni#logging-log_level-option "[logging] log_level"] option. The log level defines the minimum level of urgency required for a message to be logged, and those levels are: |
21 | 21 | |
22 | 22 | '''CRITICAL''':: Log only the most critical (typically fatal) errors. |
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26 | 26 | '''DEBUG''':: Trace messages, profiling, etc. |
27 | 27 | |
28 | | Additionally, you can enable logging of SQL statements at debug level. This is turned off by default, as it's very verbose. Set `[trac] debug_sql = yes` in TracIni to activate. |
| 28 | Additionally, you can enable logging of SQL statements at debug level. This is turned off by default, as it's very verbose. Set [TracIni#trac-debug_sql-option "[trac] debug_sql = yes"] to activate. |
29 | 29 | |
30 | 30 | == Log Format |
31 | 31 | |
32 | | The output format for log entries can be specified through the `log_format` option in [wiki:TracIni#logging-section trac.ini]. The format is a string which can contain any of the [http://docs.python.org/library/logging.html#logrecord-attributes Python logging Formatter variables]. Additonally, the following Trac-specific variables can be used: |
33 | | '''$(basename)s''':: The last path component of the current environment. |
34 | | '''$(path)s''':: The absolute path for the current environment. |
| 32 | The output format for log entries can be specified in the [TracIni#logging-log_format-option "[logging] log_format"] option. The format is a string which can contain any of the [https://docs.python.org/2/library/logging.html#logrecord-attributes Python logging Formatter variables]. Additionally, the following Trac-specific variables can be used: |
| 33 | '''$(basename)s''':: The environment directory name. |
| 34 | '''$(path)s''':: The absolute path of the environment directory. |
35 | 35 | '''$(project)s''':: The originating project's name. |
36 | 36 | |
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48 | 48 | |
49 | 49 | ---- |
50 | | See also: TracIni, TracGuide, TracEnvironment |
| 50 | See also: TracIni, TracEnvironment |
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