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Log levels

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The eight log levels of RFC 5424 (https://tools.ietf.org/html/rfc5424#page-11 ):

  • 0 Emergency: system is unusable
  • 1 Alert: action must be taken immediately
  • 2 Critical: critical conditions
  • 3 Error: error conditions
  • 4 Warning: warning conditions
  • 5 Notice: normal but significant condition
  • 6 Informational: informational messages
  • 7 Debug: debug-level messages

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