50 lines
4.7 KiB
XML
50 lines
4.7 KiB
XML
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 720 1400" role="img" aria-labelledby="title desc">
|
||
<title id="title">Диагностика потерянного ответа и безопасного повтора</title>
|
||
<desc id="desc">Вертикальная временная шкала показывает первую HTTP-попытку с requestId req-51, сохранение результата сервисом, таймаут клиента, вторую попытку req-52 с тем же ключом и повтор сохранённого результата.</desc>
|
||
<rect width="720" height="1400" fill="#f8fafc"/>
|
||
<rect x="28" y="26" width="664" height="112" rx="24" fill="#1e293b"/>
|
||
<text x="62" y="72" fill="#f8fafc" font-family="Arial, sans-serif" font-size="32" font-weight="700">Потерянный ответ: что проверить</text>
|
||
<text x="62" y="108" fill="#cbd5e1" font-family="Arial, sans-serif" font-size="20">requestId меняется, idempotency key остаётся одним</text>
|
||
|
||
<line x1="136" y1="194" x2="136" y2="1288" stroke="#94a3b8" stroke-width="8" stroke-linecap="round"/>
|
||
<circle cx="136" cy="242" r="20" fill="#2563eb"/>
|
||
<circle cx="136" cy="472" r="20" fill="#059669"/>
|
||
<circle cx="136" cy="702" r="20" fill="#ea580c"/>
|
||
<circle cx="136" cy="932" r="20" fill="#7c3aed"/>
|
||
<circle cx="136" cy="1162" r="20" fill="#16a34a"/>
|
||
|
||
<text x="52" y="212" fill="#475569" font-family="Arial, sans-serif" font-size="20" font-weight="700">t0</text>
|
||
<text x="52" y="442" fill="#475569" font-family="Arial, sans-serif" font-size="20" font-weight="700">t1</text>
|
||
<text x="52" y="672" fill="#475569" font-family="Arial, sans-serif" font-size="20" font-weight="700">t2</text>
|
||
<text x="52" y="902" fill="#475569" font-family="Arial, sans-serif" font-size="20" font-weight="700">t3</text>
|
||
<text x="52" y="1132" fill="#475569" font-family="Arial, sans-serif" font-size="20" font-weight="700">t4</text>
|
||
|
||
<rect x="182" y="174" width="486" height="142" rx="22" fill="#eff6ff" stroke="#2563eb" stroke-width="3"/>
|
||
<text x="214" y="220" fill="#1e3a8a" font-family="Arial, sans-serif" font-size="26" font-weight="700">Попытка № 1</text>
|
||
<text x="214" y="257" fill="#1e3a8a" font-family="Arial, sans-serif" font-size="21">requestId = req-51</text>
|
||
<text x="214" y="286" fill="#1e3a8a" font-family="Arial, sans-serif" font-size="21">key = demo-key-retry-2020-06-a7f1</text>
|
||
|
||
<rect x="182" y="404" width="486" height="142" rx="22" fill="#ecfdf5" stroke="#059669" stroke-width="3"/>
|
||
<text x="214" y="450" fill="#065f46" font-family="Arial, sans-serif" font-size="26" font-weight="700">Сервис сохранил result</text>
|
||
<text x="214" y="487" fill="#065f46" font-family="Arial, sans-serif" font-size="21">decision = owner → stored status = 201</text>
|
||
<text x="214" y="516" fill="#065f46" font-family="Arial, sans-serif" font-size="21">resultId = demo-request-42</text>
|
||
|
||
<rect x="182" y="634" width="486" height="142" rx="22" fill="#fff7ed" stroke="#ea580c" stroke-width="3"/>
|
||
<text x="214" y="680" fill="#9a3412" font-family="Arial, sans-serif" font-size="26" font-weight="700">Клиентский deadline истёк</text>
|
||
<text x="214" y="717" fill="#9a3412" font-family="Arial, sans-serif" font-size="21">response = not observed</text>
|
||
<text x="214" y="746" fill="#9a3412" font-family="Arial, sans-serif" font-size="21">не делаем вывод «эффекта нет»</text>
|
||
|
||
<rect x="182" y="864" width="486" height="142" rx="22" fill="#f5f3ff" stroke="#7c3aed" stroke-width="3"/>
|
||
<text x="214" y="910" fill="#4c1d95" font-family="Arial, sans-serif" font-size="26" font-weight="700">Попытка № 2</text>
|
||
<text x="214" y="947" fill="#4c1d95" font-family="Arial, sans-serif" font-size="21">requestId = req-52 — новый</text>
|
||
<text x="214" y="976" fill="#4c1d95" font-family="Arial, sans-serif" font-size="21">key тот же, payload hash тот же</text>
|
||
|
||
<rect x="182" y="1094" width="486" height="142" rx="22" fill="#f0fdf4" stroke="#16a34a" stroke-width="3"/>
|
||
<text x="214" y="1140" fill="#166534" font-family="Arial, sans-serif" font-size="26" font-weight="700">Replay сохранённого ответа</text>
|
||
<text x="214" y="1177" fill="#166534" font-family="Arial, sans-serif" font-size="21">decision = replay → status = 201</text>
|
||
<text x="214" y="1206" fill="#166534" font-family="Arial, sans-serif" font-size="21">effects = 1, resultId тот же</text>
|
||
|
||
<rect x="52" y="1302" width="616" height="56" rx="16" fill="#dbeafe"/>
|
||
<text x="360" y="1337" text-anchor="middle" fill="#1e3a8a" font-family="Arial, sans-serif" font-size="21" font-weight="700">Порядок событий важнее одного timeout</text>
|
||
</svg>
|