92 lines
7.6 KiB
XML
92 lines
7.6 KiB
XML
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<title id="diagram-title">방향에 따라 갈리는 업그레이드</title>
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<desc id="diagram-description">26.7.0 에서 26.7.3 으로 올리는 것은 무중단이었고 87회 요청이 전부 200 이었다. 되돌리기는 Liquibase 가 체크섬 검증에서 막았다. 새 버전이 남긴 체크섬을 옛 버전이 거부하기 때문이다. 그런데 서비스는 살아 있었다. StatefulSet 롤링 업데이트가 첫 파드에서 멈추고 나머지를 건드리지 않았기 때문이다. 롤백 불가는 조건부이며 판단 기준은 databasechangelog 의 행 수가 업그레이드 전후로 같은가이다.</desc>
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<polyline class="edge kind-read style-solid emphasis-normal" points="680.0,158.0 760.0,158.0 760.0,95.5 840.0,95.5" data-evidence="1006-1008" />
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<text class="edge-label" x="784.0" y="127.8">판단 기준</text>
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<polyline class="edge kind-blocked style-solid emphasis-normal" points="680.0,176.0 763.5,176.0 763.5,238.5 847.0,238.5" data-evidence="997-999" />
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<text class="edge-label" x="787.5" y="208.2">중단 지점</text>
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<polyline class="edge kind-request style-solid emphasis-normal" points="220.0,167.0 300.0,167.0 300.0,167.0 380.0,167.0" data-evidence="988-996" />
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<text class="edge-label" x="300.0" y="140.0">기동 시 검증</text>
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<text class="edge-label" x="1121.5" y="203.8">잔여 파드 응답</text>
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<rect class="node-shape kind-process emphasis-warning role-source" data-evidence="988-995" x="70.0" y="135.0" width="150.0" height="64.0" rx="7" />
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<text class="node-label" x="145.0" y="165.0">옛 버전 롤백</text>
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<g id="node-liquibase">
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<rect class="node-shape kind-process emphasis-warning role-control" data-evidence="988-996" x="380.0" y="131.5" width="300.0" height="71.0" rx="7" />
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<text class="node-label" x="530.0" y="158.5">Liquibase 검증</text>
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<line class="node-detail-divider" x1="394.0" y1="179.5" x2="666.0" y2="179.5" />
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<text class="node-detail" x="396.0" y="196.5">ValidationFailedException: 1 changesets check sum</text>
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<g id="node-changelog">
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<rect class="node-shape kind-datastore emphasis-primary role-support" data-evidence="1006-1008" x="840.0" y="71.8" width="181.0" height="47.3" /><ellipse class="node-shape kind-datastore emphasis-primary role-support" cx="930.5" cy="71.8" rx="90.5" ry="11.8" /><path class="storage-bottom" d="M 840.0 119.2 A 90.5 11.8 0 0 0 1021.0 119.2" />
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<text class="node-label" x="930.5" y="87.0">databasechangelog 행 수</text>
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<line class="node-detail-divider" x1="854.0" y1="108.0" x2="1007.0" y2="108.0" />
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<text class="node-detail" x="856.0" y="125.0">전후 행 수 비교</text>
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<g id="node-rolling">
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<rect class="node-shape kind-process emphasis-primary role-control" data-evidence="997-999" x="847.0" y="203.0" width="167.0" height="71.0" rx="7" />
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<text class="node-label" x="930.5" y="230.0">StatefulSet 롤링 업데이트</text>
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<line class="node-detail-divider" x1="861.0" y1="251.0" x2="1000.0" y2="251.0" />
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<text class="node-detail" x="863.0" y="268.0">나머지 파드 유지</text>
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<text class="node-label" x="1256.0" y="165.0">외부 서비스</text>
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