問題文
The team wants the error ratio for the order API: errors per second divided by all requests per second, broken down by method. The error series carry an extra code label. Which expression produces one result per method?
選択肢
- sum by (method, code) (rate(http_requests_total{code=~"5.."}[5m])) / sum by (method) (rate(http_requests_total[5m]))
- rate(http_requests_total{code=~"5.."}[5m]) / ignoring(method) rate(http_requests_total[5m])
- rate(http_requests_total{code=~"5.."}[5m]) / rate(http_requests_total[5m])
- sum by (method) (rate(http_requests_total{code=~"5.."}[5m])) / sum by (method) (rate(http_requests_total[5m]))