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Raddex

指标

用 --metrics-addr 启动 raddex,即可通过 HTTP 暴露 Prometheus 指标:

Terminal window
raddex run -c Raddexfile --metrics-addr 127.0.0.1:9100

指标监听器在 /metrics 提供 Prometheus 文本格式:

Terminal window
curl http://127.0.0.1:9100/metrics

指标

Section titled “指标”

所有指标都注册在默认 Prometheus 注册表上,并在每个完成的请求上记录:

指标 类型 说明
raddex_requests_total Counter raddex 服务的 HTTP 请求总数(QPS 来源)
raddex_request_duration_seconds Histogram HTTP 请求耗时(秒) 
# HELP raddex_requests_total Total HTTP requests served by raddex
# TYPE raddex_requests_total counter
raddex_requests_total 123456


# HELP raddex_request_duration_seconds HTTP request duration in seconds
# TYPE raddex_request_duration_seconds histogram
raddex_request_duration_seconds_bucket{le="0.005"} 90000
raddex_request_duration_seconds_bucket{le="0.01"} 120000
raddex_request_duration_seconds_sum 620.5
raddex_request_duration_seconds_count 123456

直方图使用默认 Prometheus 桶。用惯用的 histogram_quantile() PromQL 从桶中 计算延迟百分位(p50 / p99):

histogram_quantile(0.99, sum by (le) (rate(raddex_request_duration_seconds_bucket[5m])))

尚未覆盖的测量

Section titled “尚未覆盖的测量”

指标集合刻意保持精简。目前没有按站点或按上游的细分,也没有后端连接池的 gauge。OpenTelemetry 追踪已在路线图上。