NervesLogging (nerves_logging v0.2.3)
View SourceNervesLogging forwards log messages from the Linux kernel and syslog to the Elixir logger
Log messages have the following additional metadata:
:facility
- the facility of the log message:application
- either:$kmsg
or:$syslog
See the Elixir Logger documentation for reducing what's logged if the system logs become too noisy. Some examples:
# Reduce logging for both syslog and kernel logs
Logger.put_application_level(:nerves_logging, :error)
# Adjust logging for kernel logs
Logger.put_module_level(NervesLogging.KmsgTailer, :error)
# Adjust logging for syslog logs
Logger.put_module_level(NervesLogging.SyslogTailer, :error)
Summary
Types
@type facility() ::
:kernel
| :user_level
| :mail
| :system
| :security_authorization
| :syslogd
| :line_printer
| :network_news
| :UUCP
| :clock
| :security_authorization
| :FTP
| :NTP
| :log_audit
| :log_alert
| :clock
| :local0
| :local1
| :local2
| :local3
| :local4
| :local5
| :local6
| :local7
Syslog facilities
See https://tools.ietf.org/html/rfc5424#section-6.2.1 for the list.
@type severity() :: Logger.level()
Syslog severity levels
These map 1:1 to Logger.level/0
values.