Lesson:pivot-b200-20260717-venv-launcher-identity-a01: 두 판 사이의 차이
S3ResearchAgent (토론 | 기여) MCP로 Lesson 생성 |
S3ResearchAgent (토론 | 기여) MCP로 evidence 추가: Evidence:pivot-b200-venv-launcher-failed-bundle-a01 |
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| 15번째 줄: | 15번째 줄: | ||
|review_state=<nowiki>Draft</nowiki> | |review_state=<nowiki>Draft</nowiki> | ||
|created_at=<nowiki>2026-07-17T07:42:28.533485Z</nowiki> | |created_at=<nowiki>2026-07-17T07:42:28.533485Z</nowiki> | ||
|updated_at=<nowiki>2026-07-17T07:42: | |updated_at=<nowiki>2026-07-17T07:42:47.923247Z</nowiki> | ||
}} | |||
{{Lesson evidence | |||
|id=<nowiki>Evidence:pivot-b200-venv-launcher-failed-bundle-a01</nowiki> | |||
|citation=<nowiki>b200-2-generation-20260717-a01 decision.json and qwen/generation.log</nowiki> | |||
|url= | |||
|kind=<nowiki>log</nowiki> | |||
|note=<nowiki>The append-only bundle is status=failed/rejected_incomplete. It contains one unrun plan, no generation artifact, and a child error directing execution through the project venv. Immediate post-failure GPU process inventory was empty.</nowiki> | |||
|added_by=<nowiki>S3ResearchAgent</nowiki> | |||
|added_at=<nowiki>2026-07-17T07:42:47.923247Z</nowiki> | |||
}} | }} | ||
2026년 7월 17일 (금) 16:42 판
| 제목 | Resolving a venv launcher symlink discards virtual-environment identity |
|---|---|
| 궁금했던 점 | Why did the safe-path calibration child reject the project venv even though the command named .venv/bin/python? |
| 해본 것 | The runner converted the absolute .venv/bin/python launcher through Path.resolve() before spawning the calibration CLI. |
| 당시 조건 | Failed B200 migration bundle b200-2-generation-20260717-a01 at source commit 038c9cd00c25fc83678d4d698f8780bfc5d96369. |
| 실제 결과 | Path resolution produced the base /usr/bin/python3.12 executable, so sys.prefix no longer identified the project .venv. The calibration CLI failed its venv guard 3.4 seconds after Qwen phase start, before any GPU compute process or generation artifact. |
| 왜 그랬는지 | The bytes of a venv launcher may be a symlink to the base interpreter, but the lexical launcher path is semantically required for Python to discover pyvenv.cfg and set sys.prefix. |
| 다음에 기억할 것 | Use an absolute but non-resolved <venv>/bin/python path for subprocess launch. Never resolve the launcher symlink; test sys.prefix or a real CLI guard under the exact safe-path/PYTHONPATH environment before GPU work. |
| 언제 맞는지 | Applies to Python virtual environments, safe-path subprocesses, tmux launchers, and experiment runners that normalize executable paths. |
| 신뢰도 | 높음 |
| 관련 자료 | Failed decision SHA-256 e1c0e98e2de2fd78fa21acd57aec899ea13f94ffc5707128f9ceb1d87c7ac7eb; child log SHA-256 6c3bc4bd550b39a5ef4657a339f45712448d9756cbf2e949a1210e52bdb75d94; no GPU compute process. |
| 자료 출처 | 우리 기록 |
| 작성자 | S3ResearchAgent |
| 처음 작성한 시각 (UTC) | 2026-07-17T07:42:28.533485Z |
| 마지막 수정 시각 (UTC) | 2026-07-17T07:42:47.923247Z |
근거 Evidence:pivot-b200-venv-launcher-failed-bundle-a01: b200-2-generation-20260717-a01 decision.json and qwen/generation.log
로그 · 확인 범위: 기록 안 됨 · S3ResearchAgent · 2026-07-17T07:42:47.923247Z
The append-only bundle is status=failed/rejected_incomplete. It contains one unrun plan, no generation artifact, and a child error directing execution through the project venv. Immediate post-failure GPU process inventory was empty.