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weichenandCursor d7f8e711ee Add the isolated ops harness for disconnect and backup drills

Why: C4 and C5 need a shared way to start, refuse, and tear down stacks without touching production ports or processes.
Evidence: tests/ops/self_check.sh passed (help, unknown arg, foreign name, production port, busy port, SIGINT cleanup). drill_driver go test passed.
Impact: New tests/ops library and HTTP driver. No drill result and no release-gate change yet.
Refs: docs/release-multi-instance.md C4 C5
Co-authored-by: Cursor <cursoragent@cursor.com>

2026-10-12 13:29:44 +00:00

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U7 运维演练（C4 / C5）

只打隔离栈。实例名必须以 u7drill 或 u7bk 开头，端口必须落在 18980–18999。脚本只按自己的 pidfile 结束进程，并且先核对命令行里有本演练的数据目录或端口。

文件	职责
`lib.sh`	隔离 PG / Redis / serve 的创建、回收、端口与名称守卫
`drill_driver/`	时间线、幂等重放、SSE seq、标记写入、工件、限流突发、权限核对
`run_fault_drill.sh`	C4：`pg-stop`、`pg-kill`、`redis-kill`
`run_backup_drill.sh`	C5：物理备份 + WAL/PITR，以及 pg_dump，恢复到新目标

tests/ops/self_check.sh
tests/ops/run_fault_drill.sh --fault all
tests/ops/run_backup_drill.sh

结果在 results/<ts>/（gitignore）。证据以 make evidence 记入任务卡，来源是 SELF。本入口不放行第二实例写流量。

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U7 运维演练（C4 / C5）

894 B

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