schema_version: 1
id: repeated-component-restarts-during-maintenance-window
title: Repeated component restarts during maintenance window
status: draft
owner: codex
source: jira
environment:
  profile: stable-premium
  cluster_id: '10670278233587177350'
  cluster_type: premium
  tidb_version: v8.5.4
  parent_id: '2070062522060242944'
time_window:
  incident_at: '2026-07-06T05:10:54Z'
  allowed:
  - id: reported_incident_window
    start: '2026-07-06T05:00:00Z'
    end: '2026-07-06T07:00:00Z'
prompt:
  text: 请分析 Premium 集群 10670278233587177350 在 2026-07-06T05:00:00Z 到 2026-07-06T07:00:00Z 期间多次 TiDB OOM 和跨实例重启的问题。重启似乎会在不同 TiDB 节点间反复发生。请找出触发重启的工作负载或客户端行为，说明为什么常规 SQL 内存追踪没有阻止它，并给出止损与长期建议。
tags:
- component-restart
- memory
- sql
case_tier: P0
cost_tier: medium
followup:
  scheduled_max_followups: 0
execution:
  acp_bash_timeout_s: 900