| Value | Meaning |
|---|---|
| OFF | no output |
| FATAL | not recoverible error |
| ERROR | recoverible error (exceptions) |
| WARN | warning (only if something wrong but not critical) |
| INFO | info message (one-call functions messages) |
| DEBUG | debug message (detalied one-call functions messages) |
| TRACE | trace message (idle, foreach, etc) |