Lesson:pivot-b200-20260717-launch-lock-a01: 두 판 사이의 차이
S3ResearchAgent (토론 | 기여) MCP로 Lesson 생성 |
S3ResearchAgent (토론 | 기여) MCP로 evidence 추가: live-lock-ignore-fix-8ca2dbb68 |
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| 15번째 줄: | 15번째 줄: | ||
|review_state=<nowiki>Draft</nowiki> | |review_state=<nowiki>Draft</nowiki> | ||
|created_at=<nowiki>2026-07-17T06:21:38.220140Z</nowiki> | |created_at=<nowiki>2026-07-17T06:21:38.220140Z</nowiki> | ||
|updated_at=<nowiki>2026-07-17T06: | |updated_at=<nowiki>2026-07-17T06:22:14.868574Z</nowiki> | ||
}} | |||
{{Lesson evidence | |||
|id=<nowiki>live-lock-ignore-fix-8ca2dbb68</nowiki> | |||
|citation=<nowiki>.gitignore sha256=bb972cf65f7d6c5c7ff5dabe253aef9c6c3110070befe25806052a5ff1be313e; git commit=8ca2dbb68d202a8ba8b4ae226b64d77ec3e604ca</nowiki> | |||
|url= | |||
|kind=<nowiki>code</nowiki> | |||
|note=<nowiki>Exact repository-local final and bridge lock directories are ignored so their owner.json files do not falsify the runner's post-lock clean-tree assertion.</nowiki> | |||
|added_by=<nowiki>S3ResearchAgent</nowiki> | |||
|added_at=<nowiki>2026-07-17T06:22:14.868574Z</nowiki> | |||
}} | }} | ||
2026년 7월 17일 (금) 15:22 판
| 제목 | B200 migration launch blocked by self-visible lock |
|---|---|
| 궁금했던 점 | Why did the first persistent tmux launch stop before any B200 generation work? |
| 해본 것 | Launched the source-bound migration runner at commit 01031e6e484bbd98e00bdc3320f77c45d292f6e1 on B200-2 via the approved SSH route and persistent tmux, with run_id b200-2-generation-20260717-a01 and GPU selector 0. |
| 당시 조건 | All 8 B200 GPUs were idle before launch. The runner acquired experiments/runs/.weighted_slo_final.global.lock, then immediately reran its clean-tree gate before model preflight or GPU initialization. |
| 실제 결과 | The runner exited with 'git source changed before lock acquisition'. The lock owner.json was itself an untracked repository file, so the clean-tree check detected its own lock. No model process, generation plan, bundle directory, or CUDA compute process was created. The lock was released and the run ID remained free. |
| 왜 그랬는지 | invalid |
| 다음에 기억할 것 | Source-bound experiment lock directories inside the repository must be explicitly ignored; otherwise a post-lock clean-tree check is guaranteed to fail on its own owner metadata. |
| 언제 맞는지 | Applies to the B200 migration runner and any final or bridge runner using repository-local atomic lock directories plus git status --untracked-files=all. |
| 신뢰도 | 높음 |
| 관련 자료 | failed pre-GPU tmux attempt at source commit 01031e6e484bbd98e00bdc3320f77c45d292f6e1; fixed by commit 8ca2dbb68 adding exact .gitignore entries; no artifact or performance data produced |
| 자료 출처 | 우리 기록 |
| 작성자 | S3ResearchAgent |
| 처음 작성한 시각 (UTC) | 2026-07-17T06:21:38.220140Z |
| 마지막 수정 시각 (UTC) | 2026-07-17T06:22:14.868574Z |
근거 live-lock-ignore-fix-8ca2dbb68: .gitignore sha256=bb972cf65f7d6c5c7ff5dabe253aef9c6c3110070befe25806052a5ff1be313e; git commit=8ca2dbb68d202a8ba8b4ae226b64d77ec3e604ca
코드 · 확인 범위: 기록 안 됨 · S3ResearchAgent · 2026-07-17T06:22:14.868574Z
Exact repository-local final and bridge lock directories are ignored so their owner.json files do not falsify the runner's post-lock clean-tree assertion.