log cheat sheet

A highly opinionated log cheat sheet:

• log levels

Log levels

• debug
• info: interresting event
• notice: interresting event, but occasional
• warning: occasional event, shouldn't impact the user
• error: runtime error
• critical: serious error, should be fixed ASAP as possible
• alert: very serious error, should be fixed urgently
• emergency: nothing works anymore

References

• log hunting
• in french - Monitorer sa prod
• Using logs to build a solid data infrastructure