57 lines
5.4 KiB
XML
57 lines
5.4 KiB
XML
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<title id="title">Каскад fixed сценария и ранняя точка ограничения</title>
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<desc id="desc">Схема показывает один логический запрос, временный timeout, единственного владельца retry, выбор одной реплики, именованный fallback и terminal action после исчерпания бюджета.</desc>
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<path d="M0,0 L12,6 L0,12 Z" fill="#355070"/>
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</marker>
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<marker id="stop-arrow" markerWidth="12" markerHeight="12" refX="10" refY="6" orient="auto">
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<text x="72" y="82" fill="#ffffff" font-family="Arial, sans-serif" font-size="38" font-weight="700">Fixed каскад: limit стоит до расширения маршрута</text>
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<text x="72" y="105" fill="#cfe8ff" font-family="Arial, sans-serif" font-size="22">Одна дополнительная попытка не превращается в новую волну retry, fallback и fan-out.</text>
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<text x="180" y="236" text-anchor="middle" fill="#102a43" font-family="Arial, sans-serif" font-size="29" font-weight="700">logical request</text>
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<text x="180" y="270" text-anchor="middle" fill="#334e68" font-family="Arial, sans-serif" font-size="24">fixed input</text>
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<text x="180" y="300" text-anchor="middle" fill="#334e68" font-family="Arial, sans-serif" font-size="24">2 units of work</text>
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<rect x="390" y="190" width="250" height="128" rx="16" fill="#fff1f0" stroke="#b42318" stroke-width="3"/>
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<text x="515" y="236" text-anchor="middle" fill="#7a271a" font-family="Arial, sans-serif" font-size="29" font-weight="700">primary-a</text>
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<text x="515" y="270" text-anchor="middle" fill="#7a271a" font-family="Arial, sans-serif" font-size="24">fixed timeout</text>
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<text x="515" y="300" text-anchor="middle" fill="#7a271a" font-family="Arial, sans-serif" font-size="24">named injection</text>
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<text x="880" y="220" text-anchor="middle" fill="#744210" font-family="Arial, sans-serif" font-size="31" font-weight="700">limit point</text>
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<text x="880" y="258" text-anchor="middle" fill="#744210" font-family="Arial, sans-serif" font-size="25">edge owns retry</text>
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<text x="880" y="290" text-anchor="middle" fill="#744210" font-family="Arial, sans-serif" font-size="25">budget: 2 extra attempts</text>
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<text x="880" y="318" text-anchor="middle" fill="#744210" font-family="Arial, sans-serif" font-size="22">before route expansion</text>
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<rect x="850" y="470" width="280" height="128" rx="16" fill="#e7f8ef" stroke="#21865b" stroke-width="3"/>
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<text x="990" y="516" text-anchor="middle" fill="#135d3d" font-family="Arial, sans-serif" font-size="29" font-weight="700">primary-b</text>
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<text x="990" y="550" text-anchor="middle" fill="#135d3d" font-family="Arial, sans-serif" font-size="24">one selected replica</text>
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<text x="990" y="580" text-anchor="middle" fill="#135d3d" font-family="Arial, sans-serif" font-size="24">fixed complete</text>
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<rect x="410" y="470" width="290" height="128" rx="16" fill="#eef2ff" stroke="#5b5bd6" stroke-width="3"/>
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<text x="555" y="516" text-anchor="middle" fill="#3730a3" font-family="Arial, sans-serif" font-size="29" font-weight="700">named-summary</text>
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<text x="555" y="550" text-anchor="middle" fill="#3730a3" font-family="Arial, sans-serif" font-size="24">one work unit</text>
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<text x="555" y="580" text-anchor="middle" fill="#3730a3" font-family="Arial, sans-serif" font-size="24">no nested retry</text>
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<text x="232" y="657" text-anchor="middle" fill="#7a271a" font-family="Arial, sans-serif" font-size="29" font-weight="700">budget exhausted</text>
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<text x="232" y="691" text-anchor="middle" fill="#7a271a" font-family="Arial, sans-serif" font-size="24">return fixed degraded result</text>
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<path d="M640 254 H708" fill="none" stroke="#355070" stroke-width="5" marker-end="url(#arrow)"/>
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<path d="M760 334 V422 H555 V450" fill="none" stroke="#5b5bd6" stroke-width="5" marker-end="url(#arrow)"/>
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<path d="M730 280 C590 365, 270 420, 232 590" fill="none" stroke="#b42318" stroke-width="5" stroke-dasharray="13 10" marker-end="url(#stop-arrow)"/>
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<text x="1005" y="392" text-anchor="middle" fill="#334e68" font-family="Arial, sans-serif" font-size="22">max fan-out: 1</text>
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<text x="570" y="392" text-anchor="middle" fill="#4c3a9b" font-family="Arial, sans-serif" font-size="22">optional result unavailable</text>
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<text x="390" y="640" fill="#7a271a" font-family="Arial, sans-serif" font-size="22">no new retry, no broad fan-out</text>
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