Severity Level

Severity Level	Description
0 - emergency	System is unusable.
1 - alert	Immediate action required.
2 - critical	Critical condition.
3 - error	Error condition.
4 - warning	Warning condition.
5 - notification	Normal but significant condition.
6 - informational	Informational message only.
7 - debugging	Message that appears during debugging only.

숫자가 작을 수록 위험도가 높음.
warning 로 설정 했을 경우 4에서 0까지의 내용을 확인 할 수 있습니다.