node-alert 1 /infra/rules/node.yml

alert: NodeTcpRetransHigh (1) | Source
expr:
node:ins:tcp_retrans_ratio1m > 1e-2
Labels State Active at Value Link
alertgroup=node-alert alertname=NodeTcpRetransHigh category=node cls=pg-meta ins=pg-meta-1 instance=10.1.233.178:9100 ip=10.1.233.178 job=node level=2 severity=INFO pending 2026-01-20T14:41:10+08:00 0.021552095 Details