There are 3 common monitoring methods:
- The USE Method by Brendan Gregg;
- The RED Method by Weaveworks;
- The Four Golden Signals by Google.
The USE Method
Key metrics:
- Utilization;
- Saturation;
- Errors.
It’s optimal for infrastructure monitoring and capacity management.
The RED Method
Key metrics:
- Rate;
- Errors;
- Duration.
A simple and informative way to monitor services from a user point of view.
The Four Golden Signal
Key metrics:
- Latency;
- Traffic;
- Errors;
- Saturation.
It’s a bit more advanced way to monitor services. The RED Method is based on it.