schema_version: 1
id: expensive-query-spike-during-incident-window
title: Expensive query spike investigation
status: active
owner: claude-code
environment:
  profile: stable-dedicated
  cluster_id: '10518506906906971664'
  cluster_type: dedicated
  tidb_version: unknown
time_window:
  incident_at: '2026-04-19T01:01:00Z'
  allowed:
  - id: alert_window
    start: '2026-04-19T00:45:00Z'
    end: '2026-04-19T01:20:00Z'
prompt:
  text: 请帮我分析集群 10518506906906971664 在 2026-04-19T00:45:00Z 到 2026-04-19T01:20:00Z 这个时间窗内的 expensive query 告警。请判断最可能的根因，并给出关键证据链、影响判断和处理建议。
tags:
- expensive-query
- high-latency
- read-pressure
case_tier: P0
cost_tier: low
followup:
  scheduled_max_followups: 0