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Apr 3, 2020, 9:27:33 PM (5 years ago)
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trac
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1 | | = Trac Logging = |
| 1 | = Trac Logging |
2 | 2 | [[TracGuideToc]] |
3 | 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. |
| 4 | Trac supports logging of system messages using the standard [http://docs.python.org/library/logging.html logging module] that comes with Python. |
5 | 5 | |
6 | 6 | Logging is configured in the `[logging]` section in [wiki:TracIni#logging-section trac.ini]. |
7 | 7 | |
8 | | == Supported Logging Methods == |
| 8 | == Supported Logging Methods |
9 | 9 | |
10 | 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: |
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16 | 16 | '''eventlog''':: (Windows) Use the system's NT Event Log for Trac logging. |
17 | 17 | |
18 | | == Log Levels == |
| 18 | == Log Levels |
19 | 19 | |
20 | 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: |
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26 | 26 | '''DEBUG''':: Trace messages, profiling, etc. |
27 | 27 | |
28 | | Note that starting with Trac 0.11.5 you can in addition 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 `[trac] debug_sql = yes` in TracIni to activate. |
29 | 29 | |
30 | | == Log Format == |
| 30 | == Log Format |
31 | 31 | |
32 | | Starting with Trac 0.10.4 (see [trac:#2844 #2844]), it is possible to set the output format for log entries. This can be done 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/lib/node422.html Python logging Formatter variables]. Additonally, the following Trac-specific variables can be used: |
| 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 | 33 | '''$(basename)s''':: The last path component of the current environment. |
34 | 34 | '''$(path)s''':: The absolute path for the current environment. |
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38 | 38 | |
39 | 39 | The default format is: |
40 | | {{{ |
| 40 | {{{#!ini |
41 | 41 | log_format = Trac[$(module)s] $(levelname)s: $(message)s |
42 | 42 | }}} |
43 | 43 | |
44 | 44 | In a multi-project environment where all logs are sent to the same place (e.g. `syslog`), it makes sense to add the project name. In this example we use `basename` since that can generally be used to identify a project: |
45 | | {{{ |
| 45 | {{{#!ini |
46 | 46 | log_format = Trac[$(basename)s:$(module)s] $(levelname)s: $(message)s |
47 | 47 | }}} |