Logging: Describe all log options, including set-all and force-all
Change-Id: Ica03c3ea08289314819448a22ae7ed38a7bd4f83
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@ -70,6 +70,53 @@ So for example, in OsmoBSC, to set the log level of the Mobility
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Management category to info, you can use the following command:
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`log level mm info`.
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There is also a special command to set all categories as a one-off to a desired
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log level. For example, to silence all messages but those logged as notice and
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above issue the command: `log level set-all notice`
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Afterwards you can adjust specific categories as usual.
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A similar command is `log level force-all <level>` which causes all categories
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to behave as if set to log level <level> until the command is reverted with
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`no log level force-all` after which the individually-configured log levels will
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again take effect. The difference between `set-all` and `force-all` is that
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`set-all` actually changes the individual category settings while `force-all`
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is a (temporary) override of those settings and does not change them.
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[[log_options]]
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=== Log printing options
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The logging system has various options to change the information
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displayed in the log message.
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log color 1::
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With this option each log message will log with the color of its
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category. The color is hard-coded and can not be changed. As with
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other options a '0' disables this functionality.
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log timestamp 1::
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Includes the current time in the log message. When logging to syslog
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this option should not be needed, but may come in handy when debugging
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an issue while logging to file.
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log print extended-timestamp 1::
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In order to debug time-critical issues this option will print a
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timestamp with millisecond granularity.
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log print category 1::
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Prefix each log message with the category name.
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log print category-hex 1::
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Prefix each log message with the category number in hex ('<000b>').
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log print level 1::
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Prefix each log message with the name of the log level.
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log print file 1::
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Prefix each log message with the source file and line number. Append
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the keyword `last` to append the file information instead of prefixing
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it.
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[[log_filters]]
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=== Log filters
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