refactor: 문서 개선 중
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donghyeon-ka
+28
-40
@@ -1,8 +1,8 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<svg xmlns="http://www.w3.org/2000/svg" width="680" height="422" viewBox="0 0 680 422" role="img" aria-labelledby="diagram-title diagram-description">
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<svg xmlns="http://www.w3.org/2000/svg" width="680" height="353" viewBox="0 0 680 353" role="img" aria-labelledby="diagram-title diagram-description">
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<title id="diagram-title">세션 공유가 실제로 지나는 경로</title>
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<desc id="diagram-description">keycloak-0 과 keycloak-1 은 JGROUPS_PING 테이블을 통해 서로를 발견하고 클러스터 뷰를 형성한다. 그러나 sessions 캐시의 엔트리는 노드 사이로 복제되지 않으며, 각 노드는 자기가 처리한 로그인만 캐시한다. 노드 A 로 로그인한 세션을 노드 B 가 아는 이유는 노드 B 가 PostgreSQL 의 OFFLINE_USER_SESSION 을 직접 읽기 때문이고, 이는 반대편 노드가 날린 SQL 을 문장 로깅으로 잡아 확인했다.</desc>
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<metadata>{"techviz":{"spec_version":"1.1","id":"session-sharing-path","profile":"component-flow"},"source_context":{"document":"docs/keycloak-session-store/final/document.md","document_sha256":"609353e10bfd37a9bbb6a79ecf2a32f3d3c02d5d161879a14ad4713e49e7e5e8","anchor":{"kind":"heading","value":"그런데 첫 실험에서 전제가 무너졌다","line":33}},"evidence_policy":"Each factual element cites source lines or is marked assumption.","diagram_only":true}</metadata>
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<desc id="diagram-description">keycloak-0과 keycloak-1은 JGROUPS_PING을 통해 서로를 발견하지만 sessions cache 엔트리를 서로 복제하지 않는다. 다른 노드가 만든 세션을 알아야 할 때는 PostgreSQL OFFLINE_USER_SESSION을 직접 읽는다. discovery와 session sharing은 같은 데이터베이스 안에서도 다른 책임이다.</desc>
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<metadata>{"techviz":{"spec_version":"1.1","id":"session-sharing-path","profile":"component-flow"},"source_context":{"document":"docs/keycloak-session-store/final/document.md","document_sha256":"28aef96a2bbb94fbb10ade26a71238fee62a5a4d9fa6e7749ae98cfd0a65e560","anchor":{"kind":"heading","value":"그런데 첫 실험에서 전제가 무너졌다","line":64}},"evidence_policy":"Each factual element cites source lines or is marked assumption.","diagram_only":true}</metadata>
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<defs>
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<marker id="arrow" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
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<path d="M 0 0 L 10 5 L 0 10 z" />
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@@ -49,44 +49,32 @@
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.timeline-detail { font-size: 11px; fill: #4b5563; text-anchor: middle; }
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</style>
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</defs>
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<rect class="canvas" width="680" height="422" />
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<polyline class="edge kind-write style-solid emphasis-normal" points="220.0,138.0 306.0,138.0 306.0,108.0 392.0,108.0" data-evidence="44-45" />
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<rect class="edge-label-bg" x="304.2" y="109.0" width="51.5" height="22" rx="3" />
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<text class="edge-label" x="330.0" y="124.0">멤버 등록</text>
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<polyline class="edge kind-write style-solid emphasis-normal" points="220.0,156.0 300.0,156.0 300.0,302.5 380.0,302.5" data-evidence="49-52" />
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<text class="edge-label" x="324.0" y="230.2">세션 INSERT</text>
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<polyline class="edge kind-write style-solid emphasis-normal" points="220.0,281.0 306.0,281.0 306.0,126.0 392.0,126.0" data-evidence="44-45" />
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<text class="edge-label" x="330.0" y="204.5">멤버 등록</text>
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<polyline class="edge kind-read style-solid emphasis-normal" points="220.0,299.0 300.0,299.0 300.0,320.5 380.0,320.5" data-evidence="48-50" />
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<rect class="edge-label-bg" x="284.9" y="295.8" width="78.3" height="22" rx="3" />
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<text class="edge-label" x="324.0" y="310.8">세션 SELECT</text>
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<g id="node-keycloak-0">
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<rect class="node-shape kind-service emphasis-primary role-source" data-evidence="49-51" x="70.0" y="111.5" width="150.0" height="71.0" rx="7" />
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<text class="node-label" x="145.0" y="138.5">keycloak-0</text>
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<line class="node-detail-divider" x1="84.0" y1="159.5" x2="206.0" y2="159.5" />
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<text class="node-detail" x="86.0" y="176.5">자기 처리분만 캐시</text>
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<rect class="canvas" width="680" height="353" />
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<polyline class="edge kind-write style-solid emphasis-normal" points="265.0,175.0 351.0,175.0 351.0,104.0 437.0,104.0" data-evidence="75-75" />
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<rect class="edge-label-bg" x="349.2" y="125.5" width="51.5" height="22" rx="3" />
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<text class="edge-label" x="375.0" y="140.5">멤버 발견</text>
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<polyline class="edge kind-data style-solid emphasis-normal" points="265.0,193.0 345.0,193.0 345.0,264.0 425.0,264.0" data-evidence="78-81" />
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<rect class="edge-label-bg" x="326.5" y="214.5" width="85.0" height="22" rx="3" />
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<text class="edge-label" x="369.0" y="229.5">세션 저장 · 조회</text>
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<g id="node-replicas">
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<rect class="node-shape kind-service emphasis-primary role-source" data-evidence="75-81" x="70.0" y="140.0" width="195.0" height="88.0" rx="7" />
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<text class="node-label" x="167.5" y="167.0">Keycloak replica 2개</text>
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<line class="node-detail-divider" x1="84.0" y1="188.0" x2="251.0" y2="188.0" />
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<text class="node-detail" x="86.0" y="205.0">keycloak-0 · keycloak-1</text>
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<text class="node-detail" x="86.0" y="221.0">sessions cache는 각자</text>
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</g>
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<g id="node-keycloak-1">
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<rect class="node-shape kind-service emphasis-primary role-target" data-evidence="48-51" x="70.0" y="254.5" width="150.0" height="71.0" rx="7" />
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<text class="node-label" x="145.0" y="281.5">keycloak-1</text>
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<line class="node-detail-divider" x1="84.0" y1="302.5" x2="206.0" y2="302.5" />
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<text class="node-detail" x="86.0" y="319.5">refresh 시 DB 조회</text>
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<g id="node-discovery">
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<rect class="node-shape kind-datastore emphasis-normal role-target" data-evidence="75-75" x="437.0" y="73.0" width="150.0" height="62.0" /><ellipse class="node-shape kind-datastore emphasis-normal role-target" cx="512.0" cy="73.0" rx="75.0" ry="13.0" /><path class="storage-bottom" d="M 437.0 135.0 A 75.0 13.0 0 0 0 587.0 135.0" />
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<text class="node-label" x="512.0" y="87.0">JGROUPS_PING</text>
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<line class="node-detail-divider" x1="451.0" y1="108.0" x2="573.0" y2="108.0" />
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<text class="node-detail" x="453.0" y="125.0">노드 둘 등록</text>
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<text class="node-detail" x="453.0" y="141.0">discovery만 담당</text>
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</g>
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<g id="node-jgroups-ping">
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<rect class="node-shape kind-datastore emphasis-muted role-support" data-evidence="44-46" x="392.0" y="73.0" width="150.0" height="88.0" /><ellipse class="node-shape kind-datastore emphasis-muted role-support" cx="467.0" cy="73.0" rx="75.0" ry="13.0" /><path class="storage-bottom" d="M 392.0 161.0 A 75.0 13.0 0 0 0 542.0 161.0" />
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<text class="node-label" x="467.0" y="100.0">JGROUPS_PING</text>
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<line class="node-detail-divider" x1="406.0" y1="121.0" x2="528.0" y2="121.0" />
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<text class="node-detail" x="408.0" y="138.0">노드 둘 등록</text>
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<text class="node-detail" x="408.0" y="154.0">세션 복제 아님</text>
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</g>
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<g id="node-postgres">
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<rect class="node-shape kind-datastore emphasis-primary role-store" data-evidence="48-52" x="380.0" y="259.0" width="174.0" height="105.0" /><ellipse class="node-shape kind-datastore emphasis-primary role-store" cx="467.0" cy="259.0" rx="87.0" ry="13.0" /><path class="storage-bottom" d="M 380.0 364.0 A 87.0 13.0 0 0 0 554.0 364.0" />
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<text class="node-label" x="467.0" y="286.0">PostgreSQL</text>
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<line class="node-detail-divider" x1="394.0" y1="307.0" x2="540.0" y2="307.0" />
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<text class="node-detail" x="396.0" y="324.0">OFFLINE_USER_SESSION</text>
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<text class="node-detail" x="396.0" y="340.0">offline_flag='0'</text>
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<text class="node-detail" x="396.0" y="356.0">두 노드 공용</text>
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<g id="node-session-store">
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<rect class="node-shape kind-datastore emphasis-primary role-target" data-evidence="78-81" x="425.0" y="233.0" width="174.0" height="62.0" /><ellipse class="node-shape kind-datastore emphasis-primary role-target" cx="512.0" cy="233.0" rx="87.0" ry="13.0" /><path class="storage-bottom" d="M 425.0 295.0 A 87.0 13.0 0 0 0 599.0 295.0" />
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<text class="node-label" x="512.0" y="247.0">OFFLINE_USER_SESSION</text>
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<line class="node-detail-divider" x1="439.0" y1="268.0" x2="585.0" y2="268.0" />
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<text class="node-detail" x="441.0" y="285.0">keycloak-0 INSERT</text>
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<text class="node-detail" x="441.0" y="301.0">keycloak-1 SELECT</text>
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</g>
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</svg>
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Before Width: | Height: | Size: 7.8 KiB After Width: | Height: | Size: 6.7 KiB |
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