DongHyeonkaandClaude Opus 5
cdac9b8178
An audit against the standard the series set — concepts, procedure, commands, architecture diagram, evidence table, terminal output — found the three new experiments met it while twelve of the original ones had no diagram at all: A-0, A-1, A-3, A-4, A-5, A-6, A-8, B-0, B-2, B-7, C-2, D-2. Each now has one drawn from what that experiment actually found, not filler: A-0 shows sharing going through PostgreSQL rather than between the caches; A-3 the gap between the 200 and the WAL flush, with both failed injections; A-5 the three silent injection failures; A-6 the two places latency is multiplied; B-0 the repository keyed by principal with no session id; B-2 the primary key that causes the overwrite; D-2 why the rolling update stopped the accident halfway. Also corrected the index's stale claim of 11 experiments without a screenshot — it is 14, and the reason is recorded: those experiments were measured from terminals, the database and logs, and the observability stack does not scrape Redis, the BFF or PostgreSQL, so there is no console to photograph. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
48 lines
3.3 KiB
XML
48 lines
3.3 KiB
XML
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<style>
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.warn{fill:#fff8f0;stroke:#bf8700;stroke-width:1.5;rx:6}
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.t{font-size:12px;fill:#1f2328}
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.tb{font-size:12.5px;fill:#1f2328;font-weight:600}
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.s{font-size:10.5px;fill:#656d76}
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.ttl{font-size:14px;fill:#1f2328;font-weight:600}
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.r{stroke:#cf222e;stroke-width:1.6;fill:none}
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.g{stroke:#1a7f37;stroke-width:1.6;fill:none}
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.k{stroke:#8c959f;stroke-width:1.3;fill:none}
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</style>
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<defs>
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<marker id="a" markerWidth="8" markerHeight="8" refX="7" refY="3" orient="auto"><path d="M0,0 L7,3 L0,6 z" fill="#8c959f"/></marker>
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<marker id="ar" markerWidth="8" markerHeight="8" refX="7" refY="3" orient="auto"><path d="M0,0 L7,3 L0,6 z" fill="#cf222e"/></marker>
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<marker id="ag" markerWidth="8" markerHeight="8" refX="7" refY="3" orient="auto"><path d="M0,0 L7,3 L0,6 z" fill="#1a7f37"/></marker>
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</defs>
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<text x="20" y="26" class="ttl">A-1 — 7800 을 막아도 세션 공유는 안 깨진다. 깨지는 것은 로그아웃 전파다</text>
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<text x="20" y="44" class="s">예측 하나가 빗나갔고, 예상 못 한 것이 둘 나왔다</text>
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<rect x="30" y="72" width="300" height="104" class="box"/>
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<text x="46" y="94" class="tb">keycloak-0</text>
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<text x="46" y="116" class="s">로그인 처리 · 세션을 DB 에 쓴다</text>
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<rect x="530" y="72" width="300" height="104" class="box"/>
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<text x="546" y="94" class="tb">keycloak-1</text>
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<text x="546" y="116" class="s">DB 를 읽어 같은 세션을 안다</text>
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<rect x="352" y="86" width="156" height="34" class="dead"/>
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<text x="430" y="107" class="t" text-anchor="middle" fill="#cf222e">TCP 7800 차단</text>
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<text x="430" y="140" class="s" text-anchor="middle">NetworkPolicy 는 허용목록이다</text>
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<text x="430" y="156" class="s" text-anchor="middle">8080·9000 만 열고 7800 은 누락시킨다</text>
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<rect x="300" y="206" width="260" height="64" class="ok"/>
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<text x="316" y="228" class="tb">PostgreSQL</text>
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<text x="316" y="248" class="s">세션은 여기 있다 → 교차 노드 refresh 200</text>
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<path d="M150 178 L320 202" class="g" marker-end="url(#ag)"/>
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<path d="M710 178 L540 202" class="g" marker-end="url(#ag)"/>
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<rect x="30" y="290" width="390" height="76" class="dead"/>
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<text x="46" y="312" class="tb">깨진 것 — 로그아웃 전파</text>
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<text x="46" y="332" class="s">무효화 통지가 7800 을 탄다</text>
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<text x="46" y="350" class="s">400 이어야 할 refresh 가 200 을 반환했다</text>
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<rect x="440" y="290" width="390" height="76" class="warn"/>
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<text x="456" y="312" class="tb">★ 주입이 먹지 않았다 — conntrack</text>
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<text x="456" y="332" class="s">ESTABLISHED 연결은 규칙 평가를 건너뛴다</text>
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<text x="456" y="350" class="s">cluster_size 가 25분간 2 로 남았다 → 삭제 후에야 갈렸다</text>
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<text x="30" y="392" class="s">그리고 예상 못 한 둘째 — 분단된 노드가 readiness 실패로 스스로 로드밸런서에서 빠진다</text>
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<text x="30" y="410" class="s">덕분에 외부에서는 장애가 보이지 않는다. 관측 지점을 밖에만 두면 이 실험은 「아무 일도 없음」으로 보인다</text>
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</svg>
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