schema_version: 1
id: transaction-outcome-after-node-failure
title: Transaction outcome after node failure
status: draft
owner: codex
source: jira
environment:
  profile: stable-dedicated
  cluster_id: '1379661944646225237'
  cluster_type: dedicated
  tidb_version: v7.1.6
time_window:
  incident_at: '2026-06-04T06:59:11Z'
  allowed:
  - id: reported_incident_window
    start: '2026-06-04T06:55:00Z'
    end: '2026-06-04T07:05:00Z'
prompt:
  text: 请分析集群 1379661944646225237 在 2026-06-04T06:55:00Z 到 2026-06-04T07:05:00Z 的 TiKV 节点故障与事务结果。日志包含 region missing、peer is not leader、Prewrite pseudo region error，以及少量事务锁 checkpoint。请说明应用收到错误时能否断言事务一定回滚、何时结果可能不确定，以及客户端应该如何处理。
tags:
- transaction
- node-failure
- semantics
case_tier: P1
cost_tier: medium
followup:
  scheduled_max_followups: 0
execution:
  acp_bash_timeout_s: 900