g3/g3proxy/doc/configuration/log/index.rst
2023-03-09 17:55:45 +08:00

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.. _configuration_log:
***
Log
***
This is the initial *log* config, which is optional and can not be reloaded.
If set, it must reside in the main conf file.
Root Value
==========
The value could be a simple string, which is the driver name, such as
- discard
drop the logs. This is the **default**.
- journal
send logs to journald directly.
- syslog
send logs to syslogd directly.
In such case, a default driver is used as default log config for all loggers.
The value could be a map, with the following keys:
- default
**optional**, **type**: :ref:`log config <configuration_log_config>`
Set default log config for loggers with no explicit config.
**default**: journal log config
- task
**optional**, **type**: :ref:`log config <configuration_log_config>`
Set log config for *task* loggers.
**default**: not set
- escape
**optional**, **type**: :ref:`log config <configuration_log_config>`
Set log config for *escape* loggers.
**default**: not set
- resolve
**optional**, **type**: :ref:`log config <configuration_log_config>`
Set log config for *resolve* loggers.
**default**: not set
.. _configuration_log_config:
log config
==========
The detailed log config may be a simple driver name, or a map, with the following keys:
- journal
**optional**, **type**: map
Use *journal* log driver. An empty map should be used, as no keys are defined by now.
- syslog
**optional**, **type**: :ref:`syslog <configuration_log_driver_syslog>`
Use *syslog* log driver.
- async_channel_size
**optional**, **type**: usize
Set the internal async channel size.
**default**: 4096
- async_thread_number
**optional**, **type**: usize
Set the number of async threads.
This has no effect on *discard* and *journal* log driver.
**default**: 1
- io_error_sampling_offset
**optional**, **type**: usize, **max**: 16
The logger may encounter io error, we should report it anyhow. We will log this error every *2^n* times,
where *n* can be set here.
This has no effect on *discard* and *journal* log driver.
**default**: 10
.. note:: The *discard* driver has no config options, so it doesn't has a corresponding map field.
.. toctree::
:maxdepth: 2
:caption: More:
driver/index