Errors show us a rate of failed requests, and are one of The Four Golden Signals of MonitoringThe Four Golden Signals of Monitoring
The four golden signals of [[Monitoring]] are:
[[Measuring Request Latency]]
[[Measuring Traffic]]
[[Measuring Error Rate]]
[[Measuring Service Saturation]]
Status: #🌲
References:
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Error rates can look at requests that failed:
- directly (5XX errors) – fetched at load balancer level is an easy way to track this globally. See Where to Collect Metrics#Infrastructure-exported Metrics
- indirectly (2XX code but wrong response) – which is hard to track, see Where to Collect Metrics#Synthetic Clients
- by policy (e.g., any request served over 1s could be treated as an error)
Status: #🌱
References: