{"id":120635,"date":"2026-10-31T23:47:53","date_gmt":"2026-10-31T15:47:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/120635.html"},"modified":"2026-10-31T23:47:53","modified_gmt":"2026-10-31T15:47:53","slug":"%e5%88%86%e5%b8%83%e5%bc%8f-id-%e7%94%9f%e6%88%90%e6%96%b9%e6%a1%88%ef%bc%9a%e9%9b%aa%e8%8a%b1%e7%ae%97%e6%b3%95%e4%b8%8e%e5%8f%b7%e6%ae%b5%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/120635.html","title":{"rendered":"\u5206\u5e03\u5f0f ID \u751f\u6210\u65b9\u6848\uff1a\u96ea\u82b1\u7b97\u6cd5\u4e0e\u53f7\u6bb5\u6a21\u5f0f"},"content":{"rendered":"

\u5206\u5e03\u5f0f ID \u751f\u6210\u65b9\u6848：\u96ea\u82b1\u7b97\u6cd5\u4e0e\u53f7\u6bb5\u6a21\u5f0f<\/h2>\n

\u95ee\u9898\u57df：\u5206\u5e03\u5f0f\u7cfb\u7edf \/ \u5206\u5e93\u5206\u8868\u540e\u7684\u4e3b\u952e\u751f\u6210
\n\u6280\u672f\u6808：\u8bed\u8a00\u65e0\u5173\u3002\u4ee3\u7801\u4ee5 Go \u4e3e\u4f8b，Java \u751f\u6001\u5bf9\u5e94 Leaf\u3001UidGenerator\u3001TinyID
\n\u96be\u5ea6：\u2b50\u2b50\u2b50\u2b50（\u9700\u8981\u4e86\u89e3\u5206\u5e93\u5206\u8868\u4e0e\u5e76\u53d1\u57fa\u7840）
\n\u9605\u8bfb\u65f6\u957f：5 \u5206\u949f\u770b\u300c\u901f\u89c8\u300d｜20 \u5206\u949f\u8bfb\u5168\u6587｜30 \u5206\u949f\u542b\u81ea\u6d4b\u9898<\/p>\n

\n

🎯 \u4e00\u53e5\u8bdd\u5b9a\u4f4d<\/h3>\n

\u5206\u5e03\u5f0f ID \u89e3\u51b3\u4ec0\u4e48\u95ee\u9898？<\/p>\n

\u7cfb\u7edf\u62c6\u6210\u591a\u5e93\u591a\u8282\u70b9\u4e4b\u540e，"\u6570\u636e\u5e93\u81ea\u589e\u4e3b\u952e"\u8fd9\u6761\u8def\u65ad\u4e86\u2014\u2014\u6bcf\u4e2a\u5e93\u90fd\u4ece 1 \u5f00\u59cb\u53d1\u53f7，\u5fc5\u7136\u649e\u8f66\u3002\u6240\u4ee5\u9700\u8981\u4e00\u5957\u5168\u5c40\u552f\u4e00\u3001\u5c3d\u91cf\u6709\u5e8f\u3001\u6027\u80fd\u625b\u5f97\u4f4f\u7684\u53d1\u53f7\u673a\u5236\u3002<\/p>\n

\u751f\u6d3b\u5316\u6bd4\u55bb：<\/p>\n

\u8eab\u4efd\u8bc1\u53f7\u300214 \u4ebf\u4eba\u4e0d\u80fd\u91cd\u53f7，\u4f46\u4f60\u53c8\u5e0c\u671b\u53f7\u6bb5\u5927\u81f4\u80fd\u6309\u5730\u533a\u3001\u6309\u51fa\u751f\u5e74\u4efd\u6392\u5e8f\u2014\u2014\u8fd9\u5c31\u662f"\u5168\u5c40\u552f\u4e00 + \u8d8b\u52bf\u9012\u589e"\u3002<\/p>\n

\u4e0d\u9002\u5408\u8c01：\u5355\u5e93\u5355\u8868\u3001\u6570\u636e\u91cf < \u5343\u4e07\u3002\u8fd9\u79cd\u60c5\u51b5\u76f4\u63a5\u7528\u6570\u636e\u5e93\u81ea\u589e，\u5f15\u5165\u8fd9\u5957\u590d\u6742\u5ea6\u7eaf\u5c5e\u81ea\u627e\u9ebb\u70e6\u3002<\/p>\n

\n

\u26a1 5 \u5206\u949f\u901f\u89c8\u7248（\u8d76\u65f6\u95f4\u770b\u8fd9\u91cc）<\/h3>\n

\u6838\u5fc3\u7ed3\u8bba\u4e00\u53e5\u8bdd：<\/p>\n

\u7528\u4f4d\u5206\u914d\u6362\u6027\u80fd，\u7528 workerID \u6362\u552f\u4e00\u6027，\u7528 buffer \u6362\u53ef\u7528\u6027；\u65f6\u949f\u56de\u62e8\u662f\u552f\u4e00\u80fd\u771f\u6b63\u6253\u7834\u552f\u4e00\u6027\u7684\u88c2\u7f1d\u3002<\/p>\n

\u4e94\u4e2a\u5fc5\u987b\u8bb0\u4f4f\u7684\u70b9：<\/p>\n\n#\u8981\u70b9\u4e00\u53e5\u8bdd\u8bb0\u5fc6<\/tr>\n\n\n\n\n\n\n
1<\/td>\n\u96ea\u82b1 = 1 \u7b26\u53f7 + 41 \u65f6\u95f4\u6233 + 10 \u673a\u5668 + 12 \u5e8f\u5217<\/td>\n\u65f6\u95f4\u7684\u5207\u7247 + \u673a\u5668\u7684\u7f16\u53f7<\/td>\n<\/tr>\n
2<\/td>\n\u552f\u4e00\u6027\u53ea\u7531 workerID \u4fdd\u8bc1，\u4e0d\u662f\u65f6\u949f\u540c\u6b65<\/td>\n\u65f6\u949f\u53ea\u7ba1\u6709\u5e8f，\u673a\u5668\u53f7\u624d\u7ba1\u4e0d\u649e<\/td>\n<\/tr>\n
3<\/td>\n\u65f6\u949f\u56de\u62e8\u6309\u5e45\u5ea6\u5206 4 \u7ea7\u5904\u7f6e<\/td>\n\u5c0f\u56de\u62e8\u7b49，\u4e2d\u56de\u62e8\u6362\u53f7，\u5927\u56de\u62e8\u6458\u8282\u70b9<\/td>\n<\/tr>\n
4<\/td>\n\u53f7\u6bb5\u6a21\u5f0f\u7528\u53cc Buffer \u628a DB \u6296\u52a8\u6321\u5728\u95e8\u5916<\/td>\n\u63d0\u524d\u5907\u6599，\u800c\u4e0d\u662f\u997f\u809a\u5b50\u4e86\u624d\u53bb\u4e70<\/td>\n<\/tr>\n
5<\/td>\n\u5bb9\u5668\u5316\u4e0b workerID \u5fc5\u987b\u7533\u8bf7-\u91ca\u653e，\u4e0d\u80fd\u786c\u7f16\u7801<\/td>\nPod \u5929\u5929\u91cd\u5efa，\u786c\u7f16\u7801\u5fc5\u649e\u53f7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u9009\u578b\u901f\u67e5：<\/p>\n

\u5355\u5e93 \u4e14 QPS<1000 \u2192 \u6570\u636e\u5e93\u81ea\u589e
\n\u9700\u8981\u4e3b\u952e\u4f46\u4e0d\u9700\u8981\u4e25\u683c\u6709\u5e8f \u2192 UUID v7
\n\u5927\u89c4\u6a21 + \u8981\u8d8b\u52bf\u9012\u589e \u2192 \u96ea\u82b1\u7b97\u6cd5
\n\u8981\u6c42\u8fde\u7eed \/ \u8981\u6297 DB \u6296\u52a8 \u2192 \u53f7\u6bb5\u6a21\u5f0f（Leaf-segment）<\/p>\n

\n

🗺 \u77e5\u8bc6\u5730\u56fe（\u5148\u770b\u5730\u56fe，\u518d\u8fdb\u7ec6\u8282）<\/h3>\n

#mermaid-svg-ulTqGKRJ0bP0XxP7{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .error-icon{fill:#552222;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .marker{fill:#333333;stroke:#333333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .marker.cross{stroke:#333333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-ulTqGKRJ0bP0XxP7 p{margin:0;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .cluster-label text{fill:#333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .cluster-label span{color:#333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .cluster-label span p{background-color:transparent;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .label text,#mermaid-svg-ulTqGKRJ0bP0XxP7 span{fill:#333;color:#333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .node rect,#mermaid-svg-ulTqGKRJ0bP0XxP7 .node circle,#mermaid-svg-ulTqGKRJ0bP0XxP7 .node ellipse,#mermaid-svg-ulTqGKRJ0bP0XxP7 .node polygon,#mermaid-svg-ulTqGKRJ0bP0XxP7 .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .rough-node .label text,#mermaid-svg-ulTqGKRJ0bP0XxP7 .node .label text,#mermaid-svg-ulTqGKRJ0bP0XxP7 .image-shape .label,#mermaid-svg-ulTqGKRJ0bP0XxP7 .icon-shape .label{text-anchor:middle;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .rough-node .label,#mermaid-svg-ulTqGKRJ0bP0XxP7 .node .label,#mermaid-svg-ulTqGKRJ0bP0XxP7 .image-shape .label,#mermaid-svg-ulTqGKRJ0bP0XxP7 .icon-shape .label{text-align:center;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .node.clickable{cursor:pointer;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .arrowheadPath{fill:#333333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-ulTqGKRJ0bP0XxP7 .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-ulTqGKRJ0bP0XxP7 .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-ulTqGKRJ0bP0XxP7 .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .cluster text{fill:#333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .cluster span{color:#333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-ulTqGKRJ0bP0XxP7 rect.text{fill:none;stroke-width:0;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .icon-shape,#mermaid-svg-ulTqGKRJ0bP0XxP7 .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .icon-shape p,#mermaid-svg-ulTqGKRJ0bP0XxP7 .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .icon-shape .label rect,#mermaid-svg-ulTqGKRJ0bP0XxP7 .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-ulTqGKRJ0bP0XxP7 .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-ulTqGKRJ0bP0XxP7 .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-ulTqGKRJ0bP0XxP7 :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n

\u5206\u5e03\u5f0f ID \u751f\u6210<\/p>\n

<\/span><\/p>\n

\u7b2c\u4e00\u5c42：ID \u7ed3\u6784\u4e0e\u6807\u8bc6\u6cbb\u7406\u4e0d\u51fa\u9519<\/p>\n

<\/span><\/p>\n

\u7b2c\u4e8c\u5c42：\u6027\u80fd\u4e0e\u5f02\u5e38\u515c\u5e95\u51fa\u9519\u80fd\u625b<\/p>\n

<\/span><\/p>\n

\u7b2c\u4e09\u5c42：\u76d1\u63a7\u4e0e\u81ea\u6108\u51fa\u9519\u80fd\u67e5\u80fd\u6062\u590d<\/p>\n

<\/span><\/p>\n

\u96ea\u82b1\u7b97\u6cd5\u4f4d\u5206\u914d<\/p>\n

<\/span><\/p>\n

workerID \u7533\u8bf7-\u91ca\u653e<\/p>\n

<\/span><\/p>\n

\u542f\u52a8\u65f6\u949f\u524d\u7f6e\u6821\u9a8c<\/p>\n

<\/span><\/p>\n

\u53f7\u6bb5\u53cc Buffer<\/p>\n

<\/span><\/p>\n

\u65f6\u949f\u56de\u62e8\u5206\u7ea7\u5904\u7f6e<\/p>\n

<\/span><\/p>\n

\u8fc7\u8f7d\u964d\u7ea7\u7b56\u7565<\/p>\n

<\/span><\/p>\n

\u56db\u6307\u6807\u76d1\u63a7<\/p>\n

<\/span><\/p>\n

\u51b2\u7a81\u81ea\u52a8\u91cd\u65b0\u5206\u914d<\/p>\n

<\/span><\/p>\n

\u6df7\u6c8c\u5de5\u7a0b\u9a8c\u8bc1<\/p>\n

<\/span><\/p>\n

\u4e09\u5c42\u662f\u9012\u8fdb\u7684：\u7b2c\u4e00\u5c42\u51b3\u5b9a\u6545\u969c\u6982\u7387，\u7b2c\u4e8c\u5c42\u51b3\u5b9a\u6545\u969c\u5f71\u54cd\u9762，\u7b2c\u4e09\u5c42\u51b3\u5b9a\u6062\u590d\u901f\u5ea6\u3002<\/p>\n

\u540e\u6587\u7684\u4e09\u3001\u4e94\u3001\u516d\u8282\u5206\u522b\u5bf9\u5e94\u8fd9\u4e09\u5c42\u3002\u4e0d\u5fc5\u4e00\u6b21\u8bfb\u5b8c\u2014\u2014\u6309\u5c42\u770b，\u6bcf\u5c42\u90fd\u80fd\u72ec\u7acb\u6210\u7bc7\u3002<\/p>\n

\n

\u3007\u3001\u4ece\u573a\u666f\u5f00\u59cb：\u4e00\u4e2a\u8ba2\u5355\u53f7\u5f15\u53d1\u7684\u8840\u6848<\/h3>\n

\u8bbe\u5b9a\u4e00\u4e2a\u771f\u5b9e\u573a\u666f，\u8d2f\u7a7f\u5168\u6587：<\/p>\n

\u4f60\u8d1f\u8d23\u7535\u5546\u8ba2\u5355\u670d\u52a1，\u5f53\u524d\u72b6\u51b5：<\/p>\n

    \n
  • \u65e5\u8ba2\u5355 5000 \u4e07，\u5cf0\u503c 2 \u4e07 TPS（\u5927\u4fc3\u518d\u7ffb 3 \u500d）<\/li>\n
  • 3 \u4e2a\u673a\u623f，K8s \u90e8\u7f72，Pod \u6bcf\u5929\u91cd\u5efa\u4e0a\u767e\u6b21<\/li>\n
  • \u8ba2\u5355\u8868\u5206 16 \u5e93 256 \u8868<\/li>\n<\/ul>\n

    \u73b0\u5728\u8981\u7ed9\u8ba2\u5355\u53f7\u8bbe\u8ba1\u53d1\u53f7\u65b9\u6848\u3002\u4f60\u4f1a\u88ab\u8fd9\u4e9b\u95ee\u9898\u8fde\u73af\u8ffd\u95ee：<\/p>\n\n#\u573a\u666f\u903c\u51fa\u6765\u7684\u95ee\u9898\u540e\u6587\u4f4d\u7f6e<\/tr>\n\n\n\n\n\n\n
    1<\/td>\n16 \u4e2a\u5e93\u90fd\u81ea\u589e，\u600e\u4e48\u4fdd\u8bc1\u4e0d\u91cd\u590d？<\/td>\n\u7b2c 2 \u8282<\/td>\n<\/tr>\n
    2<\/td>\n2 \u4e07 TPS \u4e0b，\u53d1\u53f7\u4f1a\u4e0d\u4f1a\u62d6\u57ae\u94fe？<\/td>\n\u7b2c 3 \u8282<\/td>\n<\/tr>\n
    3<\/td>\n\u673a\u5668\u65f6\u949f\u88ab NTP \u8c03\u56de 1 \u79d2，\u4f1a\u600e\u6837？<\/td>\n\u7b2c 4 \u8282<\/td>\n<\/tr>\n
    4<\/td>\n\u53d1\u53f7\u670d\u52a1\u4f9d\u8d56\u7684 DB \u6302\u4e86，\u8fd8\u80fd\u53d1\u53f7\u5417？<\/td>\n\u7b2c 5 \u8282<\/td>\n<\/tr>\n
    5<\/td>\nPod \u53cd\u590d\u91cd\u5efa，\u673a\u5668\u53f7\u600e\u4e48\u4e0d\u91cd\u590d\u5206\u914d？<\/td>\n\u7b2c 6 \u8282<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u8bf7\u5e26\u7740\u8fd9 5 \u4e2a\u95ee\u9898\u5f80\u4e0b\u8bfb\u2014\u2014\u6bcf\u8bfb\u5b8c\u4e00\u5c42，\u56de\u5934\u770b\u4e00\u773c\u80fd\u7b54\u51e0\u4e2a\u3002\u8fd9\u6bd4\u4ece\u5934\u80cc\u5230\u5c3e\u6709\u6548\u5f97\u591a\u3002<\/p>\n

    \n

    \u4e00\u3001\u9700\u6c42\u8fb9\u754c：\u4ec0\u4e48\u53eb"\u597d"\u7684\u5206\u5e03\u5f0f ID<\/h3>\n\n\u8981\u6c42\u5927\u767d\u8bdd\u4e0d\u6ee1\u8db3\u4f1a\u600e\u6837\u4f18\u5148\u7ea7<\/tr>\n\n\n\n\n\n\n\n
    \u5168\u5c40\u552f\u4e00<\/td>\n\u7edd\u5bf9\u4e0d\u80fd\u91cd\u53f7<\/td>\n\u4e3b\u952e\u51b2\u7a81\u3001\u8ba2\u5355\u88ab\u8986\u76d6<\/td>\n\u5e95\u7ebf<\/td>\n<\/tr>\n
    \u8d8b\u52bf\u9012\u589e<\/td>\n\u5927\u81f4\u8d8a\u6765\u8d8a\u5927\u5c31\u884c<\/td>\nB+ \u6811\u9891\u7e41\u9875\u5206\u88c2，\u5199\u5165\u653e\u5927<\/td>\n\u52a0\u5206\u9879<\/td>\n<\/tr>\n
    \u9ad8\u6027\u80fd<\/td>\n\u53d1\u53f7\u4e0d\u80fd\u6210\u4e3a\u74f6\u9888<\/td>\n\u53d1\u53f7\u6162\u4e86，\u5168\u7ad9\u5199\u64cd\u4f5c\u6392\u961f<\/td>\n\u5de5\u7a0b\u7ea6\u675f<\/td>\n<\/tr>\n
    \u9ad8\u53ef\u7528<\/td>\n\u6ca1\u6709\u5355\u70b9<\/td>\n\u53d1\u53f7\u670d\u52a1\u6302\u4e86 = \u5168\u7ad9\u4e0d\u80fd\u4e0b\u5355<\/td>\n\u5de5\u7a0b\u7ea6\u675f<\/td>\n<\/tr>\n
    \u4fe1\u606f\u5b89\u5168<\/td>\n\u522b\u8ba9\u4eba\u7b97\u51fa\u4f60\u7684\u4e1a\u52a1\u91cf<\/td>\n\u7ade\u5bf9\u7528\u8ba2\u5355\u53f7\u9664\u4ee5\u5929\u6570\u91cf，\u4f30\u51fa\u4f60\u7684\u65e5\u5355\u91cf<\/td>\n\u89c6\u4e1a\u52a1<\/td>\n<\/tr>\n
    \u53ef\u8bfb\u6027<\/td>\n\u80fd\u770b\u51fa\u65f6\u95f4\u3001\u673a\u623f<\/td>\n\u6392\u67e5\u95ee\u9898\u9760\u731c<\/td>\n\u5f31\u9700\u6c42<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u26a0\ufe0f \u6700\u5bb9\u6613\u641e\u6df7\u7684\u4e24\u4e2a\u8bcd：<\/p>\n

      \n
    • \u9012\u589e（\u8d8b\u52bf\u53d8\u5927）= \u7d22\u5f15\u53cb\u597d，\u5fc5\u987b<\/li>\n
    • \u8fde\u7eed（1,2,3,4 \u65e0\u7a7a\u6d1e）= \u4e1a\u52a1\u597d\u770b，\u4e0d\u5fc5\u987b<\/li>\n<\/ul>\n

      \u8ffd\u6c42"\u8fde\u7eed"\u4f1a\u903c\u4f60\u6bcf\u6b21\u90fd\u8bbf\u95ee DB，\u6027\u80fd\u548c\u53ef\u7528\u6027\u5168\u6bc1\u3002\u7edd\u5927\u591a\u6570\u4e1a\u52a1\u8981\u7684\u53ea\u662f"\u9012\u589e"\u3002<\/p>\n

      \n

      \u4e8c\u3001\u65b9\u6848\u5168\u666f：\u6709\u54ea\u51e0\u6761\u8def，\u5404\u81ea\u4ee3\u4ef7\u662f\u4ec0\u4e48<\/h3>\n

      2.1 \u516b\u79cd\u65b9\u6848\u6a2a\u5411\u5bf9\u6bd4<\/h4>\n\n\u65b9\u6848\u5927\u767d\u8bdd\u552f\u4e00\u6027\u6709\u5e8f\u6027\u80fd\u4f9d\u8d56\u4ec0\u4e48\u65f6\u5019\u7528<\/tr>\n\n\n\n\n\n\n\n\n\n
      DB \u81ea\u589e<\/td>\n\u8ba9\u6570\u636e\u5e93\u5e2e\u4f60\u6570\u6570<\/td>\n\u2705<\/td>\n\u2705 \u8fde\u7eed<\/td>\n\u4f4e<\/td>\n\u5f3a\u4f9d\u8d56 DB<\/td>\n\u5355\u5e93\u3001\u5c0f\u89c4\u6a21<\/td>\n<\/tr>\n
      DB \u591a\u6b65\u957f<\/td>\n\u6bcf\u4e2a\u5e93\u6b65\u4f10\u4e0d\u540c（1,4,7\u2026）<\/td>\n\u2705<\/td>\n\u2705 \u9012\u589e<\/td>\n\u4e2d<\/td>\n\u5f3a\u4f9d\u8d56 DB<\/td>\n\u5c0f\u89c4\u6a21\u5206\u5e93<\/td>\n<\/tr>\n
      UUID v4<\/td>\n\u968f\u673a\u6570，\u649e\u4e0a\u7b97\u4f60\u8fd0\u6c14\u5dee<\/td>\n\u2705<\/td>\n\u274c \u4e71<\/td>\n\u6781\u9ad8<\/td>\n\u65e0<\/td>\n\u65e5\u5fd7\u8ffd\u8e2a，\u4e0d\u5f53\u4e3b\u952e<\/td>\n<\/tr>\n
      UUID v7<\/td>\n\u5e26\u65f6\u95f4\u524d\u7f00\u7684 UUID<\/td>\n\u2705<\/td>\n\u2705 \u65f6\u95f4\u6709\u5e8f<\/td>\n\u6781\u9ad8<\/td>\n\u65e0<\/td>\n\u53ef\u5f53\u4e3b\u952e（RFC 9562）<\/td>\n<\/tr>\n
      Redis INCR<\/td>\n\u8ba1\u6570\u5668 +1<\/td>\n\u26a0\ufe0f \u4e3b\u4ece\u5207\u6362\u53ef\u80fd\u91cd<\/td>\n\u2705<\/td>\n\u6781\u9ad8<\/td>\n\u5f3a\u4f9d\u8d56 Redis<\/td>\n\u4e2d\u5c0f\u89c4\u6a21，\u53ef\u5bb9\u5fcd\u6781\u5c0f\u6982\u7387\u91cd<\/td>\n<\/tr>\n
      \u96ea\u82b1\u7b97\u6cd5<\/td>\n\u65f6\u95f4 + \u673a\u5668\u53f7 + \u5e8f\u53f7\u62fc\u8d77\u6765<\/td>\n\u2705 \u9760\u673a\u5668\u53f7\u4e0d\u51b2\u7a81<\/td>\n\u2705 \u9012\u589e<\/td>\n\u6781\u9ad8（\u7eaf\u672c\u5730）<\/td>\n\u53ea\u9700\u5206\u914d\u673a\u5668\u53f7<\/td>\n\u5927\u89c4\u6a21\u4e3b\u529b<\/td>\n<\/tr>\n
      \u53f7\u6bb5\u6a21\u5f0f<\/td>\n\u4e00\u6b21\u9886\u4e00\u6279，\u6162\u6162\u53d1<\/td>\n\u2705<\/td>\n\u2705 \u9012\u589e（\u4e0d\u8fde\u7eed）<\/td>\n\u9ad8<\/td>\n\u4f4e\u9891\u4f9d\u8d56 DB<\/td>\n\u8981\u6297 DB \u6296\u52a8<\/td>\n<\/tr>\n
      Leaf \/ UidGenerator \/ TinyID<\/td>\n\u522b\u4eba\u9020\u597d\u7684\u8f6e\u5b50<\/td>\n\u2705<\/td>\n\u2705<\/td>\n\u9ad8<\/td>\n\u5404\u81ea<\/td>\n\u751f\u4ea7\u7ea7\u76f4\u63a5\u9009<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u26a0\ufe0f \u7279\u522b\u6f84\u6e05\u4e24\u4e2a\u5e38\u89c1\u9519\u8bef\u8bf4\u6cd5：<\/p>\n

    • \u201cRedis INCR \u662f\u5f3a\u4e00\u81f4\u3001\u7edd\u5bf9\u552f\u4e00\u201d\u2014\u2014\u9519\u3002 Redis \u4e3b\u4ece\u662f\u5f02\u6b65\u590d\u5236，\u4e3b\u5e93\u5b95\u673a\u5207\u4ece\u5e93\u53ef\u80fd\u4e22\u4e00\u6bb5\u589e\u91cf，\u5bfc\u81f4 ID \u56de\u9000\u3001\u4ea7\u751f\u91cd\u590d\u3002Redis \u7ed9\u7684\u662f\u9ad8\u6027\u80fd，\u4e0d\u662f\u5f3a\u4e00\u81f4\u3002\u7528\u5b83\u5fc5\u987b\u914d\u4e1a\u52a1\u4fa7\u552f\u4e00\u7d22\u5f15\u515c\u5e95\u3002<\/li>\n
    • \u201cUUID \u4e0d\u80fd\u505a\u4e3b\u952e\u201d\u2014\u2014\u4e0d\u5b8c\u5168\u5bf9\u3002 UUID v4 \u786e\u5b9e\u4f1a\u56e0\u4e3a\u65e0\u5e8f\u5bfc\u81f4 B+ \u6811\u9875\u5206\u88c2；\u4f46 UUID v7（\u524d 48 \u4f4d\u662f\u6beb\u79d2\u65f6\u95f4\u6233）\u662f\u65f6\u95f4\u6709\u5e8f\u7684，\u5b8c\u5168\u53ef\u4ee5\u505a\u5206\u5e03\u5f0f\u4e3b\u952e，\u800c\u4e14\u96f6\u4f9d\u8d56\u3002<\/li>\n

      2.2 \u9009\u578b\u51b3\u7b56\u6811<\/h4>\n

      #mermaid-svg-gNN7qDFgV8NOD776{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-gNN7qDFgV8NOD776 .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-gNN7qDFgV8NOD776 .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-gNN7qDFgV8NOD776 .error-icon{fill:#552222;}#mermaid-svg-gNN7qDFgV8NOD776 .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-gNN7qDFgV8NOD776 .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-gNN7qDFgV8NOD776 .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-gNN7qDFgV8NOD776 .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-gNN7qDFgV8NOD776 .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-gNN7qDFgV8NOD776 .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-gNN7qDFgV8NOD776 .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-gNN7qDFgV8NOD776 .marker{fill:#333333;stroke:#333333;}#mermaid-svg-gNN7qDFgV8NOD776 .marker.cross{stroke:#333333;}#mermaid-svg-gNN7qDFgV8NOD776 svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-gNN7qDFgV8NOD776 p{margin:0;}#mermaid-svg-gNN7qDFgV8NOD776 .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-gNN7qDFgV8NOD776 .cluster-label text{fill:#333;}#mermaid-svg-gNN7qDFgV8NOD776 .cluster-label span{color:#333;}#mermaid-svg-gNN7qDFgV8NOD776 .cluster-label span p{background-color:transparent;}#mermaid-svg-gNN7qDFgV8NOD776 .label text,#mermaid-svg-gNN7qDFgV8NOD776 span{fill:#333;color:#333;}#mermaid-svg-gNN7qDFgV8NOD776 .node rect,#mermaid-svg-gNN7qDFgV8NOD776 .node circle,#mermaid-svg-gNN7qDFgV8NOD776 .node ellipse,#mermaid-svg-gNN7qDFgV8NOD776 .node polygon,#mermaid-svg-gNN7qDFgV8NOD776 .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-gNN7qDFgV8NOD776 .rough-node .label text,#mermaid-svg-gNN7qDFgV8NOD776 .node .label text,#mermaid-svg-gNN7qDFgV8NOD776 .image-shape .label,#mermaid-svg-gNN7qDFgV8NOD776 .icon-shape .label{text-anchor:middle;}#mermaid-svg-gNN7qDFgV8NOD776 .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-gNN7qDFgV8NOD776 .rough-node .label,#mermaid-svg-gNN7qDFgV8NOD776 .node .label,#mermaid-svg-gNN7qDFgV8NOD776 .image-shape .label,#mermaid-svg-gNN7qDFgV8NOD776 .icon-shape .label{text-align:center;}#mermaid-svg-gNN7qDFgV8NOD776 .node.clickable{cursor:pointer;}#mermaid-svg-gNN7qDFgV8NOD776 .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-gNN7qDFgV8NOD776 .arrowheadPath{fill:#333333;}#mermaid-svg-gNN7qDFgV8NOD776 .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-gNN7qDFgV8NOD776 .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-gNN7qDFgV8NOD776 .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-gNN7qDFgV8NOD776 .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-gNN7qDFgV8NOD776 .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-gNN7qDFgV8NOD776 .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-gNN7qDFgV8NOD776 .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-gNN7qDFgV8NOD776 .cluster text{fill:#333;}#mermaid-svg-gNN7qDFgV8NOD776 .cluster span{color:#333;}#mermaid-svg-gNN7qDFgV8NOD776 div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-gNN7qDFgV8NOD776 .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-gNN7qDFgV8NOD776 rect.text{fill:none;stroke-width:0;}#mermaid-svg-gNN7qDFgV8NOD776 .icon-shape,#mermaid-svg-gNN7qDFgV8NOD776 .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-gNN7qDFgV8NOD776 .icon-shape p,#mermaid-svg-gNN7qDFgV8NOD776 .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-gNN7qDFgV8NOD776 .icon-shape .label rect,#mermaid-svg-gNN7qDFgV8NOD776 .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-gNN7qDFgV8NOD776 .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-gNN7qDFgV8NOD776 .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-gNN7qDFgV8NOD776 :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/span><\/p>\n

      \u662f<\/p>\n

      <\/span><\/p>\n

      \u5426<\/p>\n

      <\/span><\/p>\n

      \u5426<\/p>\n

      <\/span><\/p>\n

      \u662f<\/p>\n

      <\/span><\/p>\n

      \u4e0d\u80fd<\/p>\n

      <\/span><\/p>\n

      \u80fd<\/p>\n

      <\/span><\/p>\n

      \u5426<\/p>\n

      <\/span><\/p>\n

      \u662f<\/p>\n

      <\/span><\/p>\n

      \u9700\u8981\u4e00\u4e2a ID \u65b9\u6848<\/p>\n

      <\/span><\/p>\n

      \u5355\u5e93 \u4e14 QPS < 1000?<\/p>\n

      <\/span><\/p>\n

      \u6570\u636e\u5e93\u81ea\u589e\u6700\u7701\u4e8b<\/p>\n

      <\/span><\/p>\n

      \u5fc5\u987b\u505a\u8d8b\u52bf\u9012\u589e\u7684\u4e3b\u952e?<\/p>\n

      <\/span><\/p>\n

      UUID v7\u96f6\u4f9d\u8d56<\/p>\n

      <\/span><\/p>\n

      \u80fd\u63a5\u53d7\u4f9d\u8d56\u4e2d\u95f4\u4ef6?<\/p>\n

      <\/span><\/p>\n

      \u96ea\u82b1\u7b97\u6cd5\u9700\u89e3\u51b3 workerID \u5206\u914d<\/p>\n

      <\/span><\/p>\n

      \u4e1a\u52a1\u8981\u6c42 ID \u8fde\u7eed?<\/p>\n

      <\/span><\/p>\n

      \u96ea\u82b1 \u6216 Leaf-segment<\/p>\n

      <\/span><\/p>\n

      \u53f7\u6bb5\u6a21\u5f0f + \u53cc Buffer<\/p>\n

      <\/span><\/p>\n

      2.3 \u56db\u680f\u8bb0\u5fc6\u8868<\/h4>\n\n\u6982\u5ff5\u5927\u767d\u8bdd\u751f\u6d3b\u6bd4\u55bb\u4e00\u53e5\u8bdd\u8bb0\u5fc6<\/tr>\n\n\n\n\n\n\n\n
      \u5168\u5c40\u552f\u4e00<\/td>\n\u4e0d\u80fd\u91cd\u53f7<\/td>\n\u8eab\u4efd\u8bc1\u53f7<\/td>\n\u91cd\u53f7 = \u6570\u636e\u707e\u96be<\/td>\n<\/tr>\n
      \u8d8b\u52bf\u9012\u589e<\/td>\n\u5927\u81f4\u8d8a\u6765\u8d8a\u5927<\/td>\n\u6392\u961f\u9886\u53f7<\/td>\n\u6709\u5e8f \u2260 \u8fde\u7eed<\/td>\n<\/tr>\n
      \u96ea\u82b1\u7b97\u6cd5<\/td>\n\u65f6\u95f4+\u673a\u5668+\u5e8f\u53f7<\/td>\n\u51fa\u751f\u65f6\u95f4+\u6237\u7c4d\u5730+\u987a\u5e8f<\/td>\n\u672c\u5730\u751f\u6210，\u4e0d\u4f9d\u8d56\u4efb\u4f55\u4eba<\/td>\n<\/tr>\n
      \u53f7\u6bb5\u6a21\u5f0f<\/td>\n\u4e00\u6b21\u9886\u4e00\u6279<\/td>\n\u6279\u53d1\u4e00\u53e0\u53f7\u7801\u672c<\/td>\n1000 \u6b21\u53d1\u53f7\u53ea\u78b0 1 \u6b21 DB<\/td>\n<\/tr>\n
      \u53cc Buffer<\/td>\n\u63d0\u524d\u9886\u597d\u4e0b\u4e00\u6279<\/td>\n\u9910\u5385\u63d0\u524d\u5907\u6599<\/td>\n\u4e0d\u997f\u809a\u5b50\u624d\u53bb\u4e70\u83dc<\/td>\n<\/tr>\n
      workerID<\/td>\n\u673a\u5668\u81ea\u5df1\u7684\u7f16\u53f7<\/td>\n\u5de5\u4f4d\u53f7<\/td>\n\u552f\u4e00\u6027\u7684\u552f\u4e00\u6765\u6e90<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
      \n

      \u4e09\u3001\u7b2c\u4e00\u5c42：ID \u7ed3\u6784\u4e0e\u5168\u5c40\u6807\u8bc6\u6cbb\u7406（\u96ea\u82b1\u7b97\u6cd5）<\/h3>\n

      \u8fd9\u4e00\u5c42\u8981\u89e3\u51b3\u7684\u95ee\u9898：\u628a ID \u7684\u7ed3\u6784\u89c4\u5212\u597d，\u8ba9\u673a\u5668\u53f7\u6709\u5408\u6cd5\u6765\u6e90\u2014\u2014\u76ee\u6807\u662f"\u4e0d\u51fa\u9519"\u3002<\/p>\n

      3.1 \u7ed3\u6784：64 \u4f4d\u600e\u4e48\u5207<\/h4>\n

      \u250c\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
      \n\u2502 0 \u2502 41 \u4f4d\u65f6\u95f4\u6233(\u6beb\u79d2) \u2502 10 \u4f4d workerID\u2502 12 \u4f4d\u5e8f\u5217\u53f7 \u2502
      \n\u2514\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
      \n \u7b26\u53f7\u4f4d \u7ea6 69.7 \u5e74 1024 \u4e2a\u8282\u70b9 \u6bcf\u6beb\u79d2 4096 \u4e2a<\/p>\n\n\u5b57\u6bb5\u4f4d\u6570\u5bb9\u91cf\u5173\u952e\u70b9<\/tr>\n\n\n\n\n\n
      \u7b26\u53f7\u4f4d<\/td>\n1<\/td>\n\u6052\u4e3a 0<\/td>\n\u4fdd\u8bc1\u6b63\u6570，\u517c\u5bb9 long \/ int64<\/td>\n<\/tr>\n
      \u65f6\u95f4\u6233<\/td>\n41<\/td>\n2^41 ms \u2248 69.7 \u5e74<\/td>\n\u4ece\u54ea\u4e2a epoch \u8d77\u7b97，\u51b3\u5b9a\u4f60\u80fd\u7528\u591a\u4e45<\/td>\n<\/tr>\n
      workerID<\/td>\n10<\/td>\n1024<\/td>\n\u552f\u4e00\u6027\u5b8c\u5168\u9760\u5b83<\/td>\n<\/tr>\n
      \u5e8f\u5217\u53f7<\/td>\n12<\/td>\n4096\/ms<\/td>\n\u5355\u8282\u70b9\u7406\u8bba\u4e0a\u9650 409.6 \u4e07\/s<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      3.2 \u4e09\u4e2a\u5fc5\u987b\u7b54\u5bf9\u7684\u7ec6\u8282<\/h4>\n

      \u2460 epoch \u4ece\u54ea\u7b97\u8d77？\u7528\u5b8c\u4e86\u600e\u4e48\u529e？<\/p>\n

        \n
      • epoch \u662f\u4ee3\u7801\u91cc\u7684\u5e38\u91cf\u3002Twitter \u539f\u59cb\u5b9e\u73b0\u7528 2010-11-04，\u56fd\u5185\u591a\u6570\u7528 2021-01-01 00:00:00 UTC（\u6beb\u79d2\u503c 1609459200000）\u3002<\/li>\n
      • epoch \u4e00\u65e6\u4e0a\u7ebf\u5c31\u4e0d\u80fd\u6539，\u6539\u4e86\u4f1a\u5bfc\u81f4\u65b0\u65e7 ID \u51b2\u7a81\u3002<\/li>\n
      • 69.7 \u5e74\u5230\u671f\u540e：\u63d0\u524d\u89c4\u5212\u65b0 epoch \u7070\u5ea6\u5207\u6362，\u6216\u628a\u65f6\u95f4\u4f4d\u4ece 41 \u6269\u5230 42\/43（\u4f46\u4f1a\u6324\u5360 workerID，\u5c5e\u4e8e\u4e0d\u517c\u5bb9\u53d8\u66f4，\u8981\u63d0\u524d\u5f88\u591a\u5e74\u89c4\u5212）\u3002<\/li>\n<\/ul>\n

        \u2461 10 \u4f4d workerID \u4e3a\u4ec0\u4e48\u8981\u62c6\u6210 5+5？<\/p>\n

        \u62c6\u6210 5 \u4f4d\u673a\u623f（32 \u4e2a）+ 5 \u4f4d\u673a\u5668（32 \u53f0）：<\/p>\n

          \n
        • \u6269\u5bb9\u65f6\u7f16\u53f7\u6709\u8bed\u4e49：\u673a\u623f 2\u3001\u673a\u5668 7 \u2192 \u4e00\u773c\u77e5\u9053\u662f\u54ea\u53f0\u673a\u5668\u53d1\u7684\u53f7<\/li>\n
        • \u591a\u673a\u623f\u90e8\u7f72\u65f6\u53ef\u4ee5\u6309\u673a\u623f\u5206\u6bb5，\u8de8\u673a\u623f\u8fc1\u79fb\u4e0d\u5f71\u54cd<\/li>\n
        • \u6392\u969c\u6210\u672c\u5927\u5e45\u4e0b\u964d（\u5426\u5219\u62ff\u5230 workerID=723 \u4f60\u5f97\u53cd\u67e5\u662f\u54ea\u4e2a Pod）<\/li>\n<\/ul>\n

          \u2462 \u5e8f\u5217\u53f7\u4e00\u6beb\u79d2\u7528\u5b8c\u4e86\u600e\u4e48\u529e？<\/p>\n

          4096 \u4e2a\u7528\u5c3d \u2192 \u5fc5\u987b\u7b49\u4e0b\u4e00\u6beb\u79d2\u3002\u4f46\u7b49\u5f85\u65b9\u5f0f\u5f88\u5173\u952e：<\/p>\n

          \/\/ \u274c \u9519\u8bef：\u88f8\u81ea\u65cb，\u4f1a\u6253\u6ee1\u4e00\u4e2a CPU \u6838，\u4e14\u4e0d\u4ea7\u751f ID<\/span>
          \nfor<\/span> now <=<\/span> s.<\/span>lastMs {<\/span>
          \n now =<\/span> time.<\/span>Now<\/span>(<\/span>)<\/span>.<\/span>UnixNano<\/span>(<\/span>)<\/span> \/<\/span> 1e6<\/span>
          \n}<\/span><\/p>\n

          \/\/ \u2705 \u6b63\u786e：\u8ba9\u51fa CPU，\u907f\u514d\u7a7a\u8f6c<\/span>
          \nfor<\/span> now <=<\/span> s.<\/span>lastMs {<\/span>
          \n runtime.<\/span>Gosched<\/span>(<\/span>)<\/span> \/\/ \u6216 time.Sleep(50 * time.Microsecond)<\/span>
          \n now =<\/span> s.<\/span>clock<\/span>(<\/span>)<\/span>
          \n}<\/span><\/p>\n

          \u8fd9\u4e2a\u662f\u771f\u5b9e\u8e29\u8fc7\u7684\u5751：\u538b\u6d4b\u65f6 CPU 100% \u4f46 QPS \u4e0a\u4e0d\u53bb，\u5c31\u662f\u8fd9\u4e2a\u5faa\u73af\u5728\u7a7a\u8f6c\u3002<\/p>\n

          3.3 \u5b9e\u73b0\u8981\u70b9（Go \u793a\u4f8b，\u903b\u8f91\u4e0e\u8bed\u8a00\u65e0\u5173）<\/h4>\n

          const<\/span> (<\/span>
          \n epoch =<\/span> int64<\/span>(<\/span>1609459200000<\/span>)<\/span> \/\/ 2021-01-01T00:00:00Z，\u4e0d\u53ef\u968f\u610f\u66f4\u6539<\/span>
          \n workerBits =<\/span> 10<\/span>
          \n seqBits =<\/span> 12<\/span>
          \n maxWorker =<\/span> int64<\/span>(<\/span>1<\/span><<<\/span>workerBits)<\/span> –<\/span> 1<\/span> \/\/ 1023<\/span>
          \n maxSeq =<\/span> int64<\/span>(<\/span>1<\/span><<<\/span>seqBits)<\/span> –<\/span> 1<\/span> \/\/ 4095<\/span>
          \n timeShift =<\/span> workerBits +<\/span> seqBits
          \n workerShift =<\/span> seqBits
          \n)<\/span><\/p>\n

          type<\/span> Snowflake struct<\/span> {<\/span>
          \n mu sync.<\/span>Mutex
          \n lastMs int64<\/span>
          \n workerID int64<\/span>
          \n seq int64<\/span>
          \n clock func<\/span>(<\/span>)<\/span> int64<\/span> \/\/ \u6ce8\u5165\u65f6\u949f：\u4fbf\u4e8e\u5355\u6d4b\u6784\u9020\u56de\u62e8\u573a\u666f<\/span>
          \n}<\/span><\/p>\n

          func<\/span> (<\/span>s *<\/span>Snowflake)<\/span> Next<\/span>(<\/span>)<\/span> (<\/span>int64<\/span>,<\/span> error<\/span>)<\/span> {<\/span>
          \n s.<\/span>mu.<\/span>Lock<\/span>(<\/span>)<\/span>
          \n defer<\/span> s.<\/span>mu.<\/span>Unlock<\/span>(<\/span>)<\/span><\/p>\n

          now :=<\/span> s.<\/span>clock<\/span>(<\/span>)<\/span>
          \n switch<\/span> {<\/span>
          \n case<\/span> now ==<\/span> s.<\/span>lastMs:<\/span> \/\/ \u540c\u4e00\u6beb\u79d2<\/span>
          \n s.<\/span>seq =<\/span> (<\/span>s.<\/span>seq +<\/span> 1<\/span>)<\/span> &<\/span> maxSeq
          \n if<\/span> s.<\/span>seq ==<\/span> 0<\/span> {<\/span> \/\/ \u672c\u6beb\u79d2 4096 \u4e2a\u7528\u5c3d<\/span>
          \n for<\/span> now <=<\/span> s.<\/span>lastMs {<\/span> \/\/ \u7b49\u4e0b\u4e00\u6beb\u79d2（\u6ce8\u610f\u9000\u907f，\u89c1 3.2\u2462）<\/span>
          \n runtime.<\/span>Gosched<\/span>(<\/span>)<\/span>
          \n now =<\/span> s.<\/span>clock<\/span>(<\/span>)<\/span>
          \n }<\/span>
          \n }<\/span>
          \n case<\/span> now ><\/span> s.<\/span>lastMs:<\/span> \/\/ \u6b63\u5e38\u63a8\u8fdb<\/span>
          \n s.<\/span>seq =<\/span> 0<\/span>
          \n default<\/span>:<\/span> \/\/ now < lastMs：\u65f6\u949f\u56de\u62e8<\/span>
          \n return<\/span> 0<\/span>,<\/span> fmt.<\/span>Errorf<\/span>(<\/span>"clock moved backwards: last=%d now=%d"<\/span>,<\/span> s.<\/span>lastMs,<\/span> now)<\/span>
          \n }<\/span>
          \n s.<\/span>lastMs =<\/span> now
          \n return<\/span> (<\/span>now–<\/span>epoch)<\/span><<<\/span>timeShift |<\/span> s.<\/span>workerID<<<\/span>workerShift |<\/span> s.<\/span>seq,<\/span> nil<\/span>
          \n}<\/span><\/p>\n

          \u4e09\u4e2a\u5de5\u7a0b\u7ec6\u8282（\u5f88\u591a\u535a\u5ba2\u7684\u4ee3\u7801\u6ca1\u6709）：<\/p>\n

        • \u65f6\u949f\u6ce8\u5165 clock func()：\u5426\u5219\u5355\u6d4b\u65f6\u949f\u56de\u62e8\u53ea\u80fd\u6539\u7cfb\u7edf\u65f6\u95f4，\u65e0\u6cd5\u81ea\u52a8\u5316\u3002<\/li>\n
        • \u5e8f\u5217\u53f7\u8017\u5c3d\u5fc5\u987b\u9000\u907f（\u89c1\u4e0a）\u3002<\/li>\n
        • \u56de\u62e8\u76f4\u63a5\u62a5\u9519\u53ea\u662f\u6700\u4fdd\u5b88\u7b56\u7565，\u751f\u4ea7\u8981\u5206\u7ea7\u5904\u7406\u2014\u2014\u89c1\u7b2c 4 \u8282\u3002<\/li>\n

          3.4 \u4e3b\u6d41\u5b9e\u73b0\u5bf9\u7167<\/h4>\n\n\u5b9e\u73b0\u5173\u952e\u7279\u70b9\u5907\u6ce8<\/tr>\n\n\n\n\n\n
          Twitter Snowflake<\/td>\n\u539f\u59cb\u5b9e\u73b0，ZK \u5206\u914d workerID<\/td>\n\u6700\u7ecf\u5178<\/td>\n<\/tr>\n
          \u767e\u5ea6 UidGenerator<\/td>\nRingBuffer \u9884\u70ed\u3001\u79d2\u7ea7\u65f6\u95f4\u3001\u652f\u6301\u672a\u6765\u65f6\u95f4<\/td>\n\u541e\u5410\u6781\u9ad8<\/td>\n<\/tr>\n
          \u7f8e\u56e2 Leaf-snowflake<\/td>\nZK \u987a\u5e8f\u8282\u70b9\u5206\u914d workerID + ZK \u8bb0\u5f55\u4e0a\u6b21\u65f6\u95f4\u6233\u505a\u56de\u62e8\u6821\u9a8c<\/td>\n\u56fd\u5185\u843d\u5730\u6700\u591a<\/td>\n<\/tr>\n
          \u6ef4\u6ef4 TinyID<\/td>\n\u53f7\u6bb5 + \u591a\u7ea7\u7f13\u5b58<\/td>\n\u504f\u53f7\u6bb5\u8def\u7ebf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
          \n

          \u56db\u3001\u88c2\u7f1d\u5728\u54ea：\u65f6\u949f\u56de\u62e8<\/h3>\n

          \u8fd9\u662f\u552f\u4e00\u80fd\u771f\u6b63\u6253\u7834\u552f\u4e00\u6027\u7684\u5730\u65b9，\u6240\u4ee5\u5355\u72ec\u6210\u8282\u3002<\/p>\n

          4.1 \u5148\u6f84\u6e05\u4e00\u4e2a\u9ad8\u9891\u8bef\u89e3（\u7b54\u9519\u76f4\u63a5\u66b4\u9732\u7406\u89e3\u6df1\u5ea6）<\/h4>\n

          \u95ee\u9898：\u4e24\u53f0\u673a\u5668\u65f6\u949f\u5dee 1 \u79d2，\u4f1a\u751f\u6210\u91cd\u590d ID \u5417？<\/p>\n

          \u7b54\u6848：\u4e0d\u4f1a\u3002 \u56e0\u4e3a ID = (\u65f6\u95f4\u6233, workerID, \u5e8f\u5217\u53f7)，\u4e24\u53f0\u673a\u5668 workerID \u4e0d\u540c，\u65f6\u95f4\u6233\u5dee\u591a\u5c11\u90fd\u4e0d\u4f1a\u649e\u3002<\/p>\n\n\u56e0\u7d20\u4fdd\u969c\u4ec0\u4e48<\/tr>\n\n\n\n
          workerID \u552f\u4e00<\/td>\n\u552f\u4e00\u6027（\u4e0d\u91cd\u590d）<\/td>\n<\/tr>\n
          \u65f6\u949f\u540c\u6b65（NTP）<\/td>\n\u8d8b\u52bf\u9012\u589e\u6027（\u4e0d\u4e71\u5e8f），\u4ee5\u53ca\u9884\u9632\u56de\u62e8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u6240\u4ee5"\u673a\u5668\u65f6\u949f\u4e0d\u51c6 \u2192 \u4f1a\u91cd\u590d"\u8fd9\u4e2a\u8bf4\u6cd5\u662f\u9519\u7684\u3002\u771f\u6b63\u4f1a\u91cd\u590d\u7684\u53ea\u6709\u4e00\u79cd\u60c5\u51b5：
          \n\u540c\u4e00\u53f0\u673a\u5668\u3001\u65f6\u949f\u56de\u62e8\u5230\u7528\u8fc7\u7684\u6beb\u79d2\u3001\u5e8f\u5217\u53f7\u53c8\u4ece\u5934\u5f00\u59cb \u2192 \u751f\u6210\u548c\u5386\u53f2\u4e0a\u5b8c\u5168\u76f8\u540c\u7684 ID\u3002<\/p>\n

          4.2 \u5206\u7ea7\u515c\u5e95：\u6309\u56de\u62e8\u5e45\u5ea6\u51b3\u5b9a\u5904\u7f6e\u4ee3\u4ef7<\/h4>\n\n\u56de\u62e8\u5e45\u5ea6\u5904\u7f6e\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u5b9a<\/tr>\n\n\n\n\n\n
          \u6beb\u79d2\u7ea7（< 100ms）<\/td>\n\u5c0f\u7761\u81ea\u65cb，\u7b49\u65f6\u949f\u8ffd\u5e73<\/td>\n\u963b\u585e\u6781\u77ed，\u4e1a\u52a1\u65e0\u611f，\u6700\u7701\u4e8b<\/td>\n<\/tr>\n
          \u767e\u6beb\u79d2\u7ea7（100ms ~ 1s）<\/td>\n\u5207\u6362\u5230\u5907\u7528 workerID \u53d1\u53f7<\/td>\n\u4e0d\u963b\u585e\u6838\u5fc3\u94fe\u8def，\u540c\u65f6\u907f\u5f00\u91cd\u590d\u7a97\u53e3<\/td>\n<\/tr>\n
          \u79d2\u7ea7（> 1s）<\/td>\n\u6458\u9664\u8282\u70b9 + \u544a\u8b66 + \u4eba\u5de5\u4ecb\u5165<\/td>\n\u5927\u6982\u7387\u662f NTP \u6545\u969c\u6216\u4eba\u4e3a\u6539\u65f6\u95f4，\u786c\u625b\u4f1a\u6269\u5927\u6545\u969c<\/td>\n<\/tr>\n
          \u542f\u52a8\u65f6\u53d1\u73b0\u56de\u62e8<\/td>\n\u76f4\u63a5\u62d2\u7edd\u542f\u52a8<\/td>\n\u6700\u5b89\u5168：\u4e0d\u5e26\u7740\u574f\u65f6\u949f\u8fdb\u96c6\u7fa4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u4e3a\u4ec0\u4e48\u8981\u5206\u7ea7：<\/p>\n

            \n
          • \u5168\u90e8"\u7b49\u5f85" \u2192 \u957f\u56de\u62e8\u4f1a\u62d6\u6b7b\u53d1\u53f7\u94fe\u8def（2 \u4e07 TPS \u4e0b\u963b\u585e 1 \u79d2 = \u5806\u79ef 2 \u4e07\u4e2a\u8bf7\u6c42）<\/li>\n
          • \u5168\u90e8"\u62d2\u7edd" \u2192 \u4e00\u6b21 NTP \u6296\u52a8\u6253\u6302\u4e00\u7247\u8282\u70b9<\/li>\n<\/ul>\n

            \u5206\u7ea7\u672c\u8d28\u662f\u5728"\u963b\u585e\u4ee3\u4ef7"\u548c"\u91cd\u590d\u98ce\u9669"\u4e4b\u95f4\u505a\u6743\u8861\u3002<\/p>\n

            4.3 Leaf-snowflake \u7684\u8de8\u91cd\u542f\u6c34\u4f4d\u7ebf（\u5de5\u7a0b\u6807\u51c6\u7b54\u6848）<\/h4>\n

            \u5355\u673a\u68c0\u6d4b\u7684\u76f2\u533a\u662f：\u8fdb\u7a0b\u91cd\u542f\u540e，lastMs \u4e22\u4e86，\u5982\u679c\u91cd\u542f\u671f\u95f4\u65f6\u949f\u88ab\u8c03\u56de，\u68c0\u6d4b\u4e0d\u51fa\u6765\u3002<\/p>\n

            Leaf \u7684\u505a\u6cd5：<\/p>\n

          • \u542f\u52a8\u65f6\u4ece ZK \u53d6 workerID（\u987a\u5e8f\u8282\u70b9，\u4e0d\u662f\u53d6\u6a21）<\/li>\n
          • \u5728 ZK \u6301\u4e45\u8bb0\u5f55\u672c\u673a\u4e0a\u6b21\u4e0a\u62a5\u7684\u65f6\u95f4\u6233<\/li>\n
          • \u542f\u52a8\u65f6\u5bf9\u6bd4：\u672c\u5730\u65f6\u95f4 < ZK \u8bb0\u5f55\u7684 lastTimestamp \u2192 \u5224\u5b9a\u56de\u62e8 \u2192 \u62d2\u7edd\u542f\u52a8 + \u544a\u8b66<\/li>\n
          • \u8fd0\u884c\u4e2d\u5b9a\u671f\u4e0a\u62a5\u65f6\u95f4\u6233，\u6301\u7eed\u7ef4\u62a4\u8fd9\u6761"\u65f6\u95f4\u6c34\u4f4d\u7ebf"<\/li>\n

            \u4e00\u53e5\u8bdd\u8bb0\u5fc6：\u628a"\u56de\u62e8\u68c0\u6d4b"\u4ece\u8fdb\u7a0b\u5185\u5355\u673a\u5bf9\u6bd4，\u5347\u7ea7\u4e3a\u8de8\u91cd\u542f\u7684\u6301\u4e45\u5316\u6c34\u4f4d\u7ebf\u3002<\/p>\n

            \n

            \u4e94\u3001\u7b2c\u4e8c\u5c42：\u6027\u80fd\u4e0e\u5f02\u5e38\u515c\u5e95（\u53f7\u6bb5\u6a21\u5f0f）<\/h3>\n

            \u8fd9\u4e00\u5c42\u8981\u89e3\u51b3\u7684\u95ee\u9898：DB \u6296\u52a8\u3001\u53f7\u6bb5\u8017\u5c3d\u3001\u6781\u7aef\u6d41\u91cf\u2014\u2014\u76ee\u6807\u662f"\u51fa\u9519\u80fd\u625b"\u3002<\/p>\n

            5.1 \u539f\u7406：\u7528\u7a7a\u95f4\u6362 DB \u8bbf\u95ee<\/h4>\n

            \u751f\u6d3b\u5316\u6bd4\u55bb：<\/p>\n

            \u4e0d\u662f\u6bcf\u6b21\u53d1\u53f7\u90fd\u53bb\u7a97\u53e3\u6392\u961f（\u8bbf\u95ee DB），\u800c\u662f\u4e00\u6b21\u6279\u53d1\u4e00\u53e0\u53f7\u7801\u672c（\u5982 1~1000），\u53d1\u5b8c\u518d\u6279\u4e0b\u4e00\u53e0\u3002<\/p>\n

            \u8868\u8bbe\u8ba1：<\/p>\n

            CREATE<\/span> TABLE<\/span> id_segment (<\/span>
            \n biz_type VARCHAR<\/span>(<\/span>64<\/span>)<\/span> PRIMARY<\/span> KEY<\/span>,<\/span> — \u4e1a\u52a1\u9694\u79bb：order \/ user \u5404\u81ea\u4e00\u6761<\/span>
            \n max_id BIGINT<\/span> NOT<\/span> NULL<\/span>,<\/span> — \u5df2\u5206\u914d\u5230\u7684\u6700\u5927\u503c<\/span>
            \n step INT<\/span> NOT<\/span> NULL<\/span>,<\/span> — \u6bcf\u6b21\u6279\u591a\u5c11<\/span>
            \n version INT<\/span> NOT<\/span> NULL<\/span> DEFAULT<\/span> 0<\/span>,<\/span> — \u4e50\u89c2\u9501<\/span>
            \n updated_at TIMESTAMP<\/span> NOT<\/span> NULL<\/span> DEFAULT<\/span> CURRENT_TIMESTAMP<\/span> ON<\/span> UPDATE<\/span> CURRENT_TIMESTAMP<\/span>
            \n)<\/span>;<\/span>
            \nINSERT<\/span> INTO<\/span> id_segment (<\/span>biz_type,<\/span> max_id,<\/span> step)<\/span> VALUES<\/span> (<\/span>'order'<\/span>,<\/span> 0<\/span>,<\/span> 1000<\/span>)<\/span>;<\/span><\/p>\n

            \u6279\u53f7\u6bb5（\u4e50\u89c2\u9501\u62a2\u5360）：<\/p>\n

            UPDATE<\/span> id_segment
            \n SET<\/span> max_id =<\/span> max_id +<\/span> step,<\/span> version =<\/span> version +<\/span> 1<\/span>
            \n WHERE<\/span> biz_type =<\/span> 'order'<\/span> AND<\/span> version =<\/span> #{version};<\/span>
            \n— RowsAffected = 1 \u2192 \u62a2\u5360\u6210\u529f，\u62ff\u5230 (old_max, new_max] \u8fd9\u6bb5\u79c1\u6709\u53f7\u6bb5<\/span>
            \n— RowsAffected = 0 \u2192 \u88ab\u5e76\u53d1\u62a2\u8d70，\u91cd\u8bd5（\u52a1\u5fc5\u5e26\u9000\u907f，\u522b\u65e0\u9650\u7d27\u5faa\u73af\u6253\u7206 DB）<\/span><\/p>\n

            \u62ff\u5230\u53f7\u6bb5\u540e\u7eaf\u5185\u5b58\u53d1\u53f7，\u96f6\u7f51\u7edc IO\u3002<\/p>\n

            5.2 \u5355 Buffer \u2192 \u53cc Buffer（\u5173\u952e\u8fdb\u5316）<\/h4>\n\n\u7248\u672c\u505a\u6cd5\u81f4\u547d\u95ee\u9898<\/tr>\n\n\n\n
            \u5355 Buffer<\/td>\n\u53f7\u6bb5\u53d1\u5b8c\u4e86\u624d\u53bb DB \u9886<\/td>\n\u9886\u7684\u8fc7\u7a0b\u540c\u6b65\u963b\u585e\u6240\u6709\u53d1\u53f7\u8bf7\u6c42；DB \u6296\u4e00\u4e0b，\u53d1\u53f7\u5c31\u8d85\u65f6<\/td>\n<\/tr>\n
            \u53cc Buffer<\/td>\n\u5f53\u524d\u53f7\u6bb5\u7528\u5230\u9608\u503c\u5c31\u5f02\u6b65\u9884\u52a0\u8f7d\u4e0b\u4e00\u6bb5<\/td>\n\u5207\u6362\u65e0\u7f1d，DB \u6296\u52a8\u88ab buffer \u5438\u6536<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            #mermaid-svg-QEGgtfWgmFXf6AYP{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-QEGgtfWgmFXf6AYP .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-QEGgtfWgmFXf6AYP .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-QEGgtfWgmFXf6AYP .error-icon{fill:#552222;}#mermaid-svg-QEGgtfWgmFXf6AYP .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-QEGgtfWgmFXf6AYP .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-QEGgtfWgmFXf6AYP .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-QEGgtfWgmFXf6AYP .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-QEGgtfWgmFXf6AYP .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-QEGgtfWgmFXf6AYP .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-QEGgtfWgmFXf6AYP .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-QEGgtfWgmFXf6AYP .marker{fill:#333333;stroke:#333333;}#mermaid-svg-QEGgtfWgmFXf6AYP .marker.cross{stroke:#333333;}#mermaid-svg-QEGgtfWgmFXf6AYP svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-QEGgtfWgmFXf6AYP p{margin:0;}#mermaid-svg-QEGgtfWgmFXf6AYP .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-QEGgtfWgmFXf6AYP .cluster-label text{fill:#333;}#mermaid-svg-QEGgtfWgmFXf6AYP .cluster-label span{color:#333;}#mermaid-svg-QEGgtfWgmFXf6AYP .cluster-label span p{background-color:transparent;}#mermaid-svg-QEGgtfWgmFXf6AYP .label text,#mermaid-svg-QEGgtfWgmFXf6AYP span{fill:#333;color:#333;}#mermaid-svg-QEGgtfWgmFXf6AYP .node rect,#mermaid-svg-QEGgtfWgmFXf6AYP .node circle,#mermaid-svg-QEGgtfWgmFXf6AYP .node ellipse,#mermaid-svg-QEGgtfWgmFXf6AYP .node polygon,#mermaid-svg-QEGgtfWgmFXf6AYP .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-QEGgtfWgmFXf6AYP .rough-node .label text,#mermaid-svg-QEGgtfWgmFXf6AYP .node .label text,#mermaid-svg-QEGgtfWgmFXf6AYP .image-shape .label,#mermaid-svg-QEGgtfWgmFXf6AYP .icon-shape .label{text-anchor:middle;}#mermaid-svg-QEGgtfWgmFXf6AYP .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-QEGgtfWgmFXf6AYP .rough-node .label,#mermaid-svg-QEGgtfWgmFXf6AYP .node .label,#mermaid-svg-QEGgtfWgmFXf6AYP .image-shape .label,#mermaid-svg-QEGgtfWgmFXf6AYP .icon-shape .label{text-align:center;}#mermaid-svg-QEGgtfWgmFXf6AYP .node.clickable{cursor:pointer;}#mermaid-svg-QEGgtfWgmFXf6AYP .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-QEGgtfWgmFXf6AYP .arrowheadPath{fill:#333333;}#mermaid-svg-QEGgtfWgmFXf6AYP .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-QEGgtfWgmFXf6AYP .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-QEGgtfWgmFXf6AYP .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-QEGgtfWgmFXf6AYP .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-QEGgtfWgmFXf6AYP .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-QEGgtfWgmFXf6AYP .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-QEGgtfWgmFXf6AYP .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-QEGgtfWgmFXf6AYP .cluster text{fill:#333;}#mermaid-svg-QEGgtfWgmFXf6AYP .cluster span{color:#333;}#mermaid-svg-QEGgtfWgmFXf6AYP div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-QEGgtfWgmFXf6AYP .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-QEGgtfWgmFXf6AYP rect.text{fill:none;stroke-width:0;}#mermaid-svg-QEGgtfWgmFXf6AYP .icon-shape,#mermaid-svg-QEGgtfWgmFXf6AYP .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-QEGgtfWgmFXf6AYP .icon-shape p,#mermaid-svg-QEGgtfWgmFXf6AYP .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-QEGgtfWgmFXf6AYP .icon-shape .label rect,#mermaid-svg-QEGgtfWgmFXf6AYP .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-QEGgtfWgmFXf6AYP .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-QEGgtfWgmFXf6AYP .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-QEGgtfWgmFXf6AYP :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n

            \u5230\u9608\u503c\u89e6\u53d1<\/p>\n

            <\/span><\/span><\/span><\/span><\/p>\n

            \u5f53\u524d\u53f7\u6bb5 1~1000\u5df2\u53d1\u5230 900<\/p>\n

            <\/span><\/p>\n

            \u5f02\u6b65\u52a0\u8f7d 1001~2000<\/p>\n

            <\/span><\/p>\n

            \u5f53\u524d\u6bb5\u8017\u5c3d\u539f\u5b50\u5207\u6362<\/p>\n

            <\/span><\/p>\n

            1001~2000 \u751f\u6548\u540c\u65f6\u9884\u52a0\u8f7d 2001~3000<\/p>\n

            <\/span><\/p>\n

            5.3 \u4e09\u4e2a\u5b9e\u73b0\u7ec6\u8282（\u539f\u6587\u7f3a\u5931，\u90fd\u662f\u771f\u5751）<\/h4>\n

            \u2460 \u9608\u503c\u4e0d\u662f\u62cd\u8111\u888b\u7684 10%<\/p>\n

            \u8ba1\u7b97\u516c\u5f0f：<\/p>\n

            \u5269\u4f59\u91cf \/ QPS > DB \u5f80\u8fd4\u8017\u65f6 \u00d7 \u5b89\u5168\u7cfb\u6570<\/p>\n

            \u4f8b：QPS 2 \u4e07\u3001DB \u4e00\u6b21\u6279\u53f7 50ms \u2192 \u5269\u4f59\u91cf\u81f3\u5c11 20000 \u00d7 0.05 = 1000 \u4e2a\u624d\u6709\u5b89\u5168\u8fb9\u9645\u3002\u5982\u679c\u4f60\u7684 step \u53ea\u6709 1000，\u90a3\u5fc5\u987b\u4e00\u62ff\u5230\u5c31\u9884\u52a0\u8f7d，50% \u9608\u503c\u90fd\u4e0d\u591f\u3002<\/p>\n

            \u2461 loading \u6807\u5fd7\u5fc5\u987b\u590d\u4f4d<\/p>\n

            if<\/span> !<\/span>b.<\/span>loading &&<\/span> b.<\/span>current.<\/span>used >=<\/span> int64<\/span>(<\/span>float64<\/span>(<\/span>b.<\/span>current.<\/span>size)<\/span>*<\/span>0.9<\/span>)<\/span> {<\/span>
            \n b.<\/span>loading =<\/span> true<\/span>
            \n go<\/span> func<\/span>(<\/span>)<\/span> {<\/span>
            \n defer<\/span> func<\/span>(<\/span>)<\/span> {<\/span> b.<\/span>loading =<\/span> false<\/span> }<\/span>(<\/span>)<\/span> \/\/ \u2190 \u5fc5\u987b\u590d\u4f4d，\u5426\u5219\u53ea\u4f1a\u9884\u52a0\u8f7d\u4e00\u6b21<\/span>
            \n b.<\/span>loadNext<\/span>(<\/span>)<\/span>
            \n }<\/span>(<\/span>)<\/span>
            \n}<\/span><\/p>\n

            \u6f0f\u4e86\u8fd9\u53e5 defer，\u7cfb\u7edf\u524d 10 \u5206\u949f\u6b63\u5e38，\u4e4b\u540e\u5c31\u4e0d\u518d\u9884\u52a0\u8f7d\u2014\u2014\u8fd9\u4e2a bug \u6781\u96be\u5728\u6d4b\u8bd5\u73af\u5883\u53d1\u73b0\u3002<\/p>\n

            \u2462 \u5207\u6362\u5fc5\u987b\u539f\u5b50<\/p>\n

            \u7528\u6307\u9488 swap \u6216 CAS\u3002\u5426\u5219\u5e76\u53d1\u4e0b\u4f1a\u51fa\u73b0"\u4e00\u4e2a\u8bf7\u6c42\u8fd8\u5728\u65e7\u6bb5\u3001\u53e6\u4e00\u4e2a\u5df2\u5230\u65b0\u6bb5"，\u53ef\u80fd\u8df3\u53f7\u751a\u81f3\u91cd\u590d\u3002<\/p>\n

            5.4 \u53f7\u6bb5\u6a21\u5f0f\u7684\u56fa\u6709\u4ee3\u4ef7（\u9009\u5b83\u5c31\u8981\u63a5\u53d7）<\/h4>\n\n\u4ee3\u4ef7\u8bf4\u660e\u80fd\u63a5\u53d7\u5417<\/tr>\n\n\n\n\n\n
            ID \u4e0d\u8fde\u7eed<\/td>\n\u591a\u8282\u70b9\u5404\u9886\u5404\u6bb5，\u4e2d\u95f4\u4f1a\u8df3\u53f7<\/td>\n\u7edd\u5927\u591a\u6570\u4e1a\u52a1\u53ef\u63a5\u53d7<\/td>\n<\/tr>\n
            \u91cd\u542f\u6d6a\u8d39<\/td>\n\u8fdb\u7a0b\u91cd\u542f，\u672a\u7528\u5b8c\u7684\u53f7\u6bb5\u4e22\u5f03<\/td>\n\u53ef\u63a5\u53d7（\u6216\u843d\u76d8\u7eed\u7528）<\/td>\n<\/tr>\n
            \u975e\u4e25\u683c\u5355\u8c03<\/td>\n\u4e0d\u540c\u8282\u70b9\u9886\u7684\u6bb5\u5929\u7136\u4e71\u5e8f<\/td>\n\u53ef\u63a5\u53d7（\u53ea\u8981\u8d8b\u52bf\u9012\u589e）<\/td>\n<\/tr>\n
            \u5f3a\u4f9d\u8d56 DB<\/td>\n\u9996\u6b21\u542f\u52a8\u5fc5\u987b\u6709 DB<\/td>\n\u9700\u914d\u964d\u7ea7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            \u964d\u7ea7\u7b56\u7565：DB \u4e0d\u53ef\u7528\u4e14 buffer \u8017\u5c3d\u65f6，\u964d\u7ea7\u5230\u672c\u5730\u6587\u4ef6\u9884\u5206\u914d\u53f7\u6bb5（Leaf \u6709\u6b64\u8bbe\u8ba1），\u4fdd\u8bc1\u6838\u5fc3\u94fe\u8def\u4ecd\u53ef\u5199\u3002<\/p>\n

            \u4ec0\u4e48\u65f6\u5019\u522b\u7528\u53f7\u6bb5：\u4e1a\u52a1\u5f3a\u4f9d\u8d56 ID \u8fde\u7eed（\u5982\u5bf9\u8d26\u5355\u6d41\u6c34\u53f7\u3001\u53d1\u7968\u53f7）\u3002\u8fd9\u79cd\u60c5\u51b5\u5f97\u7528"\u5206\u6bb5 + \u53f7\u6c60\u56de\u6536"\u65b9\u6848，\u6210\u672c\u9ad8\u5f97\u591a\u3002<\/p>\n

            \n

            \u516d\u3001\u7b2c\u4e09\u5c42：\u96c6\u7fa4\u4e0e\u53ef\u89c2\u6d4b<\/h3>\n

            \u8fd9\u4e00\u5c42\u8981\u89e3\u51b3\u7684\u95ee\u9898：\u673a\u5668\u53f7\u600e\u4e48\u5206\u3001\u65f6\u949f\u600e\u4e48\u7ba1\u3001\u51fa\u95ee\u9898\u600e\u4e48\u53d1\u73b0\u2014\u2014\u76ee\u6807\u662f"\u51fa\u9519\u80fd\u67e5\u80fd\u6062\u590d"\u3002<\/p>\n

            6.1 workerID \u5206\u914d\u7684\u4e09\u4ee3\u65b9\u6848<\/h4>\n\n\u4ee3\u65b9\u6848\u505a\u6cd5\u98ce\u9669<\/tr>\n\n\n\n\n
            1<\/td>\n\u786c\u7f16\u7801 \/ \u914d\u7f6e\u6587\u4ef6<\/td>\n\u6bcf\u53f0\u673a\u5668\u914d workerID=3<\/td>\n\u6269\u7f29\u5bb9\u9760\u4eba\u8089，\u914d\u9519\u5c31\u649e\u53f7；\u5bb9\u5668\u5316\u540e\u51e0\u4e4e\u4e0d\u53ef\u7528<\/td>\n<\/tr>\n
            2<\/td>\nZK \/ etcd \u987a\u5e8f\u8282\u70b9<\/td>\n\u542f\u52a8\u6ce8\u518c\u4e34\u65f6\u987a\u5e8f\u8282\u70b9\u53d6\u53f7<\/td>\n\u4f9d\u8d56\u534f\u8c03\u7ec4\u4ef6；\u53d6\u6a21\u4f1a\u5728\u8282\u70b9\u6570 > 1024 \u65f6\u649e\u53f7，\u9700\u76d1\u542c\u8282\u70b9\u53d8\u5316\u56de\u6536<\/td>\n<\/tr>\n
            3<\/td>\n\u6ce8\u518c\u4e2d\u5fc3\u7533\u8bf7-\u91ca\u653e<\/td>\n\u5bb9\u5668\u542f\u52a8\u7533\u8bf7\u3001\u9500\u6bc1\u91ca\u653e，\u5168\u5c40\u56de\u6536<\/td>\n\u5bb9\u5668\u5316\u573a\u666f\u7684\u6b63\u89e3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            \u4e3a\u4ec0\u4e48\u5bb9\u5668\u5316\u662f\u653e\u5927\u5668：<\/p>\n

            Pod \u6bcf\u5929\u91cd\u5efa\u4e0a\u767e\u6b21，\u786c\u7f16\u7801 workerID \u5fc5\u7136\u51b2\u7a81\u3002\u8fd9\u662f\u5f88\u591a\u56e2\u961f\u4ece"\u865a\u62df\u673a\u65f6\u4ee3"\u8fc1\u5230 K8s \u540e\u7ffb\u8f66\u7684\u8d77\u70b9\u3002<\/p>\n

            \u7b2c 3 \u4ee3\u7684\u5173\u952e：<\/p>\n

              \n
            • \u7533\u8bf7\u65f6\u5fc5\u987b\u5e26\u79df\u7ea6（TTL），\u5426\u5219 Pod \u88ab kill -9 \u65f6 workerID \u6c38\u4e0d\u91ca\u653e<\/li>\n
            • \u91ca\u653e\u8981\u5e42\u7b49（\u91cd\u590d\u91ca\u653e\u4e0d\u62a5\u9519）<\/li>\n
            • \u5269\u4f59\u53ef\u5206\u914d\u53f7\u4e0d\u8db3\u65f6\u8981\u544a\u8b66（\u5426\u5219\u6269\u7f29\u5bb9\u65f6\u624d\u53d1\u73b0\u6ca1\u53f7\u53ef\u7528）<\/li>\n<\/ul>\n

              6.2 \u65f6\u949f\u540c\u6b65\u7684\u6b63\u786e\u5b9a\u4f4d<\/h4>\n\n\u9879\u8bf4\u660e<\/tr>\n\n\n\n\n\n
              \u4f5c\u7528<\/td>\n\u4fdd\u8bc1 ID \u7684\u8d8b\u52bf\u9012\u589e\u6027（\u5426\u5219\u8de8\u8282\u70b9 ID \u4e71\u5e8f，\u7d22\u5f15\u5c40\u90e8\u6027\u53d8\u5dee）；\u9884\u9632\u56de\u62e8<\/td>\n<\/tr>\n
              \u4e0d\u662f<\/td>\n\u552f\u4e00\u6027\u7684\u4fdd\u969c（\u552f\u4e00\u6027\u9760 workerID）<\/td>\n<\/tr>\n
              \u505a\u6cd5<\/td>\n\u6240\u6709\u8282\u70b9\u63a5\u540c\u4e00\u7ec4 NTP；\u76d1\u63a7 offset \u6307\u6807，\u8d85 10ms \u544a\u8b66<\/td>\n<\/tr>\n
              \u52a0\u56fa<\/td>\n\u5e94\u7528\u542f\u52a8\u65f6\u6821\u9a8c\u4e00\u6b21\u65f6\u949f\u504f\u79fb，\u8d85\u9608\u503c\u62d2\u7edd\u542f\u52a8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              \u539f\u6587\u5199"\u65f6\u949f\u504f\u5dee\u5efa\u8bae < 5ms"，\u8fd9\u4e2a\u9608\u503c\u6ca1\u6709\u4f9d\u636e\u300210ms \u662f\u66f4\u5e38\u89c1\u7684\u9009\u62e9，\u5177\u4f53\u770b\u4f60\u7684 NTP \u73af\u5883\u548c ID \u6709\u5e8f\u6027\u8981\u6c42\u2014\u2014\u5173\u952e\u662f\u6807\u51c6\u8981\u81ea\u5df1\u7b97，\u4e0d\u8981\u6284\u6570\u5b57\u3002<\/p>\n

              6.3 \u5fc5\u987b\u76d1\u63a7\u7684\u56db\u4e2a\u6307\u6807<\/h4>\n\n\u6307\u6807\u5f02\u5e38\u542b\u4e49\u7ea7\u522b<\/tr>\n\n\n\n\n\n
              \u53d1\u53f7\u8017\u65f6 P99<\/td>\n\u94fe\u8def\u5361\u4e86（\u9501\u7ade\u4e89 \/ \u65f6\u949f\u7b49\u5f85 \/ DB \u963b\u585e）<\/td>\nP1<\/td>\n<\/tr>\n
              \u53f7\u6bb5\u5269\u4f59\u91cf<\/td>\n\u9884\u52a0\u8f7d\u5931\u6548\u6216 QPS \u7a81\u589e，\u5373\u5c06\u8017\u5c3d<\/td>\nP1<\/td>\n<\/tr>\n
              \u65f6\u949f\u504f\u79fb<\/td>\nNTP \u5f02\u5e38，\u56de\u62e8\u524d\u5146<\/td>\nP2<\/td>\n<\/tr>\n
              ID \u91cd\u590d\u7387<\/td>\n\u552f\u4e00\u6027\u5df2\u88ab\u7834\u574f<\/td>\nP0，\u7acb\u5373\u6b62\u8840<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              ID \u91cd\u590d\u7387\u600e\u4e48\u76d1\u63a7（\u4e0d\u9700\u8981\u5168\u91cf\u6bd4\u5bf9）：<\/p>\n

                \n
              • \u62bd\u6837\u5199\u5165 Redis：SETNX dup_check:{id} 1 EX 3600<\/li>\n
              • \u6216\u7528\u5e03\u9686\u8fc7\u6ee4\u5668（\u4f1a\u6709\u5047\u9633\u6027，\u4f46\u6210\u672c\u6781\u4f4e）<\/li>\n
              • \u62bd\u6837\u6bd4\u4f8b 1%~5% \u8db3\u4ee5\u5728\u5206\u949f\u7ea7\u53d1\u73b0\u5f02\u5e38<\/li>\n<\/ul>\n

                6.4 \u6df7\u6c8c\u5de5\u7a0b：\u9a8c\u8bc1\u515c\u5e95\u662f\u771f\u7684\u751f\u6548<\/h4>\n

                \u5fc5\u505a\u7684\u4e09\u4e2a\u6ce8\u5165\u5b9e\u9a8c：<\/p>\n\n\u6ce8\u5165\u6545\u969c\u9884\u671f\u8868\u73b0<\/tr>\n\n\n\n\n
                \u65f6\u949f\u56de\u62e8 500ms<\/td>\n\u5207\u5230\u5907\u7528 workerID，\u53d1\u53f7\u7ee7\u7eed，\u65e0\u91cd\u590d<\/td>\n<\/tr>\n
                \u53f7\u6bb5\u8017\u5c3d + DB \u65ad\u5f00<\/td>\n\u964d\u7ea7\u5230\u672c\u5730\u9884\u5206\u914d，\u6838\u5fc3\u94fe\u8def\u53ef\u5199<\/td>\n<\/tr>\n
                \u4e24\u4e2a Pod \u62ff\u5230\u540c\u4e00 workerID<\/td>\n\u76d1\u63a7\u544a\u8b66\u89e6\u53d1，\u51b2\u7a81\u81ea\u52a8\u91cd\u65b0\u7533\u8bf7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                \u6ca1\u505a\u8fc7\u6df7\u6c8c\u6ce8\u5165\u7684"\u515c\u5e95\u8bbe\u8ba1"，\u57fa\u672c\u7b49\u4e8e\u6ca1\u8bbe\u8ba1\u2014\u2014\u56e0\u4e3a\u4ece\u6765\u6ca1\u9a8c\u8bc1\u8fc7\u3002<\/p>\n

                \n

                \u4e03\u3001\u56de\u5230\u573a\u666f：\u8fd9\u4e2a\u8ba2\u5355\u670d\u52a1\u600e\u4e48\u843d\u5730<\/h3>\n

                \u628a\u7b2c\u3007\u8282\u7684 5 \u4e2a\u95ee\u9898\u9010\u4e2a\u6536\u53e3：<\/p>\n\n#\u95ee\u9898\u7b54\u6848<\/tr>\n\n\n\n\n\n\n
                1<\/td>\n16 \u4e2a\u5e93\u600e\u4e48\u4e0d\u91cd\u590d？<\/td>\n\u4e0d\u7528\u5e93\u81ea\u589e，\u6539\u6210\u7edf\u4e00\u53d1\u53f7\u670d\u52a1（\u96ea\u82b1 + \u53f7\u6bb5\u6df7\u5408：\u8ba2\u5355\u53f7\u7528\u53f7\u6bb5\u4fdd\u8bc1\u8d8b\u52bf\u8fde\u7eed，\u5185\u90e8\u4e8b\u4ef6 ID \u7528\u96ea\u82b1）<\/td>\n<\/tr>\n
                2<\/td>\n2 \u4e07 TPS \u4f1a\u4e0d\u4f1a\u62d6\u57ae\u94fe？<\/td>\n\u96ea\u82b1\u7eaf\u672c\u5730\u65e0 IO；\u53f7\u6bb5\u53cc Buffer \u628a DB \u8c03\u7528\u964d\u5230\u6bcf 1000 \u6b21 1 \u6b21 \u2192 DB \u538b\u529b \u2248 20 TPS，\u53ef\u5ffd\u7565<\/td>\n<\/tr>\n
                3<\/td>\n\u65f6\u949f\u56de\u62e8 1 \u79d2\u4f1a\u600e\u6837？<\/td>\n\u79d2\u7ea7\u56de\u62e8 \u2192 \u6458\u9664\u8282\u70b9 + \u544a\u8b66；\u96c6\u7fa4\u5176\u4ed6\u8282\u70b9\u6b63\u5e38\u53d1\u53f7，\u4e1a\u52a1\u65e0\u611f<\/td>\n<\/tr>\n
                4<\/td>\nDB \u6302\u4e86\u8fd8\u80fd\u53d1\u53f7\u5417？<\/td>\n\u53cc Buffer \u91cc\u8fd8\u6709\u5907\u7528\u6bb5；\u518d\u8017\u5c3d\u5219\u964d\u7ea7\u5230\u672c\u5730\u6587\u4ef6\u9884\u5206\u914d，\u4fdd\u8bc1\u5927\u4fc3\u671f\u95f4\u53ef\u5199<\/td>\n<\/tr>\n
                5<\/td>\nPod \u91cd\u5efa\u600e\u4e48\u4e0d\u649e\u53f7？<\/td>\nworkerID \u7528\u6ce8\u518c\u4e2d\u5fc3\u7533\u8bf7-\u91ca\u653e + TTL \u79df\u7ea6，Pod \u9500\u6bc1\u81ea\u52a8\u56de\u6536<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                \u8fd9\u5c31\u662f"\u67b6\u6784\u8bbe\u8ba1"\u548c"\u80cc\u65b9\u6848"\u7684\u533a\u522b：\u65b9\u6848\u8981\u80fd\u843d\u56de\u5177\u4f53\u6d41\u91cf\u3001\u5177\u4f53\u6545\u969c\u3001\u5177\u4f53\u90e8\u7f72\u65b9\u5f0f\u3002<\/p>\n

                \n

                \u516b\u3001\u5e38\u89c1\u8bef\u533a（6 \u6761，\u81ea\u67e5\u7528）<\/h3>\n\n#\u8bef\u533a\u771f\u76f8<\/tr>\n\n\n\n\n\n\n\n
                1<\/td>\n\u201c\u673a\u5668\u65f6\u949f\u4e0d\u51c6\u4f1a\u5bfc\u81f4 ID \u91cd\u590d\u201d<\/td>\n\u274c \u552f\u4e00\u6027\u9760 workerID，\u65f6\u949f\u53ea\u7ba1\u6709\u5e8f<\/td>\n<\/tr>\n
                2<\/td>\n\u201cRedis INCR \u80fd\u4fdd\u8bc1\u7edd\u5bf9\u552f\u4e00\u201d<\/td>\n\u274c \u4e3b\u4ece\u5f02\u6b65\u590d\u5236，\u4e3b\u4ece\u5207\u6362\u53ef\u80fd\u56de\u9000 \u2192 \u5fc5\u987b\u4e1a\u52a1\u552f\u4e00\u7d22\u5f15\u515c\u5e95<\/td>\n<\/tr>\n
                3<\/td>\n\u201c\u96ea\u82b1\u5355\u673a 409.6 \u4e07 QPS\u201d<\/td>\n\u26a0\ufe0f \u90a3\u662f\u7406\u8bba\u4e0a\u9650；\u5b9e\u9645\u53d7 time.Now() + \u9501 + \u5e8f\u5217\u53f7\u8017\u5c3d\u7b49\u5f85\u9650\u5236，\u901a\u5e38 100~200 \u4e07\/s<\/td>\n<\/tr>\n
                4<\/td>\n\u201cUUID \u5b8c\u5168\u4e0d\u80fd\u505a\u4e3b\u952e\u201d<\/td>\n\u26a0\ufe0f UUID v4 \u786e\u5b9e\u4e0d\u884c；UUID v7 \u65f6\u95f4\u6709\u5e8f，\u53ef\u4ee5\u505a\u4e3b\u952e<\/td>\n<\/tr>\n
                5<\/td>\n\u201cID \u8981\u8fde\u7eed\u624d\u597d\u201d<\/td>\n\u274c \u8981\u7684\u662f\u8d8b\u52bf\u9012\u589e；\u8ffd\u6c42\u8fde\u7eed\u5fc5\u7136\u727a\u7272\u6027\u80fd<\/td>\n<\/tr>\n
                6<\/td>\n\u201c\u53f7\u6bb5\u6a21\u5f0f\u7684 90% \u9608\u503c\u662f\u6807\u51c6\u505a\u6cd5\u201d<\/td>\n\u274c \u9608\u503c\u8981\u7b97：\u5269\u4f59\u91cf\/QPS > DB\u5f80\u8fd4\u00d7\u5b89\u5168\u7cfb\u6570<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                \n

                \u4e5d\u3001\u8ffd\u95ee\u89c6\u89d2：\u8fd9\u9053\u9898\u4f1a\u88ab\u4ece\u54ea\u513f\u6df1\u6316<\/h3>\n

                \u6309\u8003\u5bdf\u610f\u56fe\u7ec4\u7ec7，\u7528\u6765\u81ea\u67e5\u76f2\u533a\u3002\u6bcf\u6761\u90fd\u6807\u4e86"\u7b54\u9519\u4f1a\u66b4\u9732\u4ec0\u4e48"\u3002<\/p>\n\n\u8ffd\u95ee\u89d2\u5ea6\u8003\u5bdf\u4ec0\u4e48\u7b54\u9519\u4f1a\u66b4\u9732\u4ec0\u4e48<\/tr>\n\n\n\n\n\n\n\n\n\n\n
                41 \u4f4d\u65f6\u95f4\u6233\u4ece\u54ea\u7b97？\u7528\u5b8c\u4e86\u600e\u4e48\u529e？<\/td>\n\u662f\u5426\u771f\u8bfb\u8fc7\u5b9e\u73b0<\/td>\n\u53ea\u80cc"1+41+10+12"\u7684\u7eb8\u9762\u7406\u89e3<\/td>\n<\/tr>\n
                10 \u4f4d workerID \u4e3a\u4ec0\u4e48\u62c6 5+5？<\/td>\n\u662f\u5426\u8003\u8651\u591a\u673a\u623f\u4e0e\u8fd0\u7ef4\u6210\u672c<\/td>\n\u6ca1\u505a\u8fc7\u771f\u5b9e\u90e8\u7f72<\/td>\n<\/tr>\n
                \u4e24\u53f0\u673a\u5668\u65f6\u949f\u5dee 1 \u79d2\u4f1a\u649e\u5417？<\/td>\n\u662f\u5426\u7406\u89e3\u552f\u4e00\u6027\u6765\u6e90<\/td>\n\u6982\u5ff5\u6df7\u6dc6：\u628a\u65f6\u949f\u540c\u6b65\u5f53\u552f\u4e00\u6027\u4fdd\u969c<\/td>\n<\/tr>\n
                \u5e8f\u5217\u53f7\u4e00\u6beb\u79d2\u7528\u5b8c\u600e\u4e48\u529e？<\/td>\n\u662f\u5426\u610f\u8bc6\u5230\u81ea\u65cb\u7684 CPU \u4ee3\u4ef7<\/td>\n\u53ea\u4f1a\u7167\u6284\u4ee3\u7801，\u6ca1\u538b\u6d4b\u8fc7<\/td>\n<\/tr>\n
                K8s \u5f39\u6027\u6269\u7f29\u5bb9\u4e0b workerID \u600e\u4e48\u4e0d\u51b2\u7a81？<\/td>\n\u662f\u5426\u6709\u5bb9\u5668\u5316\u843d\u5730\u7ecf\u9a8c<\/td>\n\u53ea\u4f1a\u8bf4"\u7528 ZK"，\u6ca1\u8003\u8651 Pod \u91cd\u5efa<\/td>\n<\/tr>\n
                \u53f7\u6bb5\u4e0d\u8fde\u7eed，\u4e1a\u52a1\u80fd\u63a5\u53d7\u5417？<\/td>\n\u662f\u5426\u7406\u89e3\u4e1a\u52a1\u7ea6\u675f<\/td>\n\u5206\u4e0d\u6e05"\u8fde\u7eed"\u548c"\u9012\u589e"<\/td>\n<\/tr>\n
                DB \u6302\u4e86\u53f7\u6bb5\u8fd8\u80fd\u53d1\u591a\u4e45？<\/td>\n\u662f\u5426\u8bbe\u8ba1\u8fc7\u964d\u7ea7<\/td>\n\u6ca1\u6709\u515c\u5e95\u610f\u8bc6<\/td>\n<\/tr>\n
                \u600e\u4e48\u9a8c\u8bc1\u65b9\u6848\u771f\u7684\u4e0d\u4f1a\u91cd\u590d？<\/td>\n\u662f\u5426\u6709\u9a8c\u8bc1\u624b\u6bb5<\/td>\n\u53ea\u4f1a\u8bf4"\u7406\u8bba\u4e0a\u4e0d\u4f1a"<\/td>\n<\/tr>\n
                \u96ea\u82b1 vs \u53f7\u6bb5，\u4f60\u7684\u573a\u666f\u9009\u54ea\u4e2a？<\/td>\n\u7efc\u5408\u6743\u8861\u80fd\u529b<\/td>\n\u53ea\u80fd\u7f57\u5217\u4f18\u7f3a\u70b9，\u7ed9\u4e0d\u51fa\u51b3\u7b56<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                \u6700\u540e\u4e00\u6761\u662f\u5206\u6c34\u5cad：\u80fd\u8bb2\u6e05"\u9009\u578b\u4ee3\u4ef7"\u7684\u4eba\u901a\u5e38\u771f\u505a\u8fc7；\u53ea\u8bb2"\u4f18\u70b9"\u7684\u4eba\u901a\u5e38\u53ea\u770b\u8fc7\u535a\u5ba2\u3002<\/p>\n

                \n

                9.1 \u6807\u51c6\u7b54\u6848<\/h4>\n

                \u2460 41 \u4f4d\u65f6\u95f4\u6233\u4ece\u54ea\u7b97？\u7528\u5b8c\u4e86\u600e\u4e48\u529e？<\/h5>\n

                \u6838\u5fc3\u7b54\u6848：\u4ece\u4ee3\u7801\u91cc\u7684 epoch \u5e38\u91cf\u8d77\u7b97，\u8fd9\u4e2a\u503c\u4e00\u65e6\u4e0a\u7ebf\u5c31\u4e0d\u80fd\u6539，\u6539\u4e86\u4f1a\u5bfc\u81f4\u65b0\u65e7 ID \u7a7a\u95f4\u91cd\u53e0\u3002<\/p>\n

                  \n
                • Twitter \u539f\u59cb\u5b9e\u73b0\u7528 2010-11-04，\u56fd\u5185\u591a\u6570\u7528 2021-01-01T00:00:00Z（1609459200000）<\/li>\n
                • 2^41 \u6beb\u79d2 \u2248 69.7 \u5e74<\/li>\n
                • \u5feb\u5230\u671f\u65f6\u7684\u4e24\u6761\u8def：\n
                • \u6362\u65b0 epoch + \u7070\u5ea6\u5207\u6362：\u4fdd\u8bc1\u65b0\u65e7 ID \u7a7a\u95f4\u4e0d\u91cd\u53e0，\u505a\u597d\u53cc\u5199\/\u517c\u5bb9\u671f<\/li>\n
                • \u6269\u65f6\u95f4\u4f4d（41 \u2192 42\/43）：\u4f1a\u6324\u5360 workerID \u6216\u5e8f\u5217\u53f7，\u5c5e\u4e8e\u4e0d\u517c\u5bb9\u53d8\u66f4，\u5fc5\u987b\u63d0\u524d\u5f88\u591a\u5e74\u89c4\u5212<\/li>\n<\/li>\n
                • \u52a0\u5206\u53e5：\u201cepoch \u662f\u67b6\u6784\u51b3\u7b56\u4e0d\u662f\u9b54\u6cd5\u6570\u5b57，\u9009\u7684\u65f6\u5019\u5c31\u8981\u7b97\u6e05\u695a\u8fd9\u5957\u7cfb\u7edf\u8981\u7528\u591a\u5c11\u5e74\u3002\u201d<\/li>\n<\/ul>\n
                  \u2461 10 \u4f4d workerID \u4e3a\u4ec0\u4e48\u62c6 5+5？<\/h5>\n

                  \u6838\u5fc3\u7b54\u6848：\u62c6\u6210 5 \u4f4d\u673a\u623f（32）+ 5 \u4f4d\u673a\u5668（32），\u603b\u6570\u4ecd\u662f 1024，\u4f46\u7f16\u53f7\u6709\u4e86\u8bed\u4e49\u3002<\/p>\n

                    \n
                  • \u6392\u969c\u5feb：\u62ff\u5230 workerID=723 \u80fd\u76f4\u63a5\u89e3\u51fa"\u673a\u623f 22\u3001\u673a\u5668 19"，\u4e0d\u7528\u53cd\u67e5 Pod<\/li>\n
                  • \u591a\u673a\u623f\u89c4\u5212：\u6309\u673a\u623f\u5206\u6bb5，\u8de8\u673a\u623f\u8fc1\u79fb\u4e0d\u5f71\u54cd\u7f16\u53f7\u4f53\u7cfb<\/li>\n
                  • \u6269\u5bb9\u53ef\u63a7：\u65b0\u673a\u623f\u76f4\u63a5\u7528\u65b0\u53f7\u6bb5，\u4e0d\u5e72\u6270\u5b58\u91cf<\/li>\n
                  • \u4ee3\u4ef7：\u5355\u673a\u623f\u6700\u591a 32 \u53f0（\u53ef\u518d\u7528\u903b\u8f91\u5206\u7ec4\u7f13\u89e3）<\/li>\n
                  • \u52a0\u5206\u53e5：\u201c\u4e0d\u62c6\u4e5f\u80fd\u8dd1，\u62c6\u5206\u662f\u62ff\u2019\u7075\u6d3b\u6027\u6362\u8fd0\u7ef4\u6548\u7387\u2019\u2014\u2014\u5982\u679c\u53ea\u5728\u5355\u673a\u623f\u3001\u673a\u5668\u5f88\u5c11，10 \u4f4d\u5168\u7ed9\u673a\u5668\u4e5f\u5408\u7406\u3002\u201d<\/li>\n<\/ul>\n
                    \u2462 \u4e24\u53f0\u673a\u5668\u65f6\u949f\u5dee 1 \u79d2\u4f1a\u649e ID \u5417？<\/h5>\n

                    \u6838\u5fc3\u7b54\u6848：\u4e0d\u4f1a\u3002 \u552f\u4e00\u6027\u7531 workerID \u4fdd\u8bc1，\u4e0d\u9760\u65f6\u949f\u3002<\/p>\n

                      \n
                    • ID = (\u65f6\u95f4\u6233, workerID, \u5e8f\u5217\u53f7)，workerID \u4e0d\u540c \u2192 ID \u5fc5\u7136\u4e0d\u540c<\/li>\n
                    • \u65f6\u949f\u53ea\u5f71\u54cd\u8d8b\u52bf\u9012\u589e\u6027（\u8de8\u8282\u70b9 ID \u662f\u5426\u8fd1\u4f3c\u6709\u5e8f）<\/li>\n
                    • \u771f\u6b63\u4f1a\u649e\u7684\u53ea\u6709\u4e00\u79cd：\u540c\u4e00\u53f0\u673a\u5668\u3001\u65f6\u949f\u56de\u62e8\u5230\u7528\u8fc7\u7684\u6beb\u79d2\u3001\u5e8f\u5217\u53f7\u53c8\u5f52\u96f6<\/li>\n
                    • \u52a0\u5206\u53e5：\u201c\u6240\u4ee5 NTP \u7684\u4f5c\u7528\u662f\u4fdd\u8bc1 ID \u8fd1\u4f3c\u5168\u5c40\u6709\u5e8f + \u9884\u9632\u56de\u62e8，\u4e0d\u662f\u552f\u4e00\u6027\u4fdd\u969c\u3002\u628a\u8fd9\u4e24\u4ef6\u4e8b\u6df7\u8d77\u6765，\u662f\u8fd9\u9053\u9898\u6700\u5178\u578b\u7684\u6982\u5ff5\u9519\u8bef\u3002\u201d<\/li>\n<\/ul>\n
                      \u2463 \u5e8f\u5217\u53f7\u4e00\u6beb\u79d2\u7528\u5b8c\u600e\u4e48\u529e？<\/h5>\n

                      \u6838\u5fc3\u7b54\u6848：\u7b49\u5230\u4e0b\u4e00\u6beb\u79d2，\u4e14\u7b49\u5f85\u5fc5\u987b\u9000\u907f\u3002<\/p>\n

                      for<\/span> now <=<\/span> s.<\/span>lastMs {<\/span>
                      \n runtime.<\/span>Gosched<\/span>(<\/span>)<\/span> \/\/ \u6216 time.Sleep(50 * time.Microsecond)<\/span>
                      \n now =<\/span> s.<\/span>clock<\/span>(<\/span>)<\/span>
                      \n}<\/span><\/p>\n

                        \n
                      • \u88f8\u81ea\u65cb（\u53ea\u91cd\u8bfb\u65f6\u95f4）\u4f1a\u6253\u6ee1\u4e00\u4e2a CPU \u6838\u5374\u4e0d\u4ea7\u751f ID<\/li>\n
                      • \u7406\u8bba\u4e0a\u9650 409.6 \u4e07\/s，\u5b9e\u6d4b\u901a\u5e38 100~200 \u4e07\/s（\u53d7 time.Now() \u4e0e\u9501\u5f00\u9500\u9650\u5236）<\/li>\n
                      • \u52a0\u5206\u53e5：\u201c\u538b\u6d4b\u65f6\u5982\u679c\u51fa\u73b0 CPU 100% \u4f46 QPS \u4e0d\u6da8，\u516b\u6210\u5c31\u662f\u8fd9\u4e2a\u5faa\u73af\u5728\u7a7a\u8f6c\u2014\u2014\u6240\u4ee5\u76d1\u63a7\u91cc\u2019\u53d1\u53f7\u8017\u65f6\u2019\u548c\u2019CPU\u2019\u8981\u4e00\u8d77\u770b\u3002\u201d<\/li>\n<\/ul>\n
                        \u2464 K8s \u5f39\u6027\u6269\u7f29\u5bb9\u4e0b workerID \u600e\u4e48\u4e0d\u51b2\u7a81？<\/h5>\n

                        \u6838\u5fc3\u7b54\u6848：\u7533\u8bf7-\u91ca\u653e + TTL \u79df\u7ea6，\u7981\u6b62\u786c\u7f16\u7801\u3002<\/p>\n

                          \n
                        • \u786c\u7f16\u7801\u5fc5\u649e：Pod \u91cd\u5efa\u540e\u8fd8\u662f\u540c\u4e00\u4e2a\u53f7，\u65b0\u65e7 Pod \u53ef\u80fd\u540c\u65f6\u5728\u8dd1<\/li>\n
                        • \u4e09\u4ee3\u65b9\u6848\u6f14\u8fdb：\n
                        • \u786c\u7f16\u7801\/\u914d\u7f6e \u2192 \u4eba\u8089\u8fd0\u7ef4，\u5bb9\u5668\u5316\u4e0b\u4e0d\u53ef\u7528<\/li>\n
                        • ZK \u987a\u5e8f\u8282\u70b9 \u2192 \u53ef\u7528，\u4f46 seq % 1024 \u5728\u8282\u70b9\u6570 > 1024 \u65f6\u4f1a\u649e\u53f7，\u4e14\u8981\u76d1\u542c\u8282\u70b9\u53d8\u5316\u56de\u6536<\/li>\n
                        • \u6ce8\u518c\u4e2d\u5fc3\u7533\u8bf7-\u91ca\u653e \u2192 \u5bb9\u5668\u573a\u666f\u6b63\u89e3<\/li>\n<\/li>\n
                        • \u4e09\u4e2a\u5fc5\u5907\u7ec6\u8282：TTL \u79df\u7ea6（\u9632 kill -9 \u540e\u53f7\u6cc4\u6f0f）\u3001\u91ca\u653e\u5e42\u7b49\u3001\u5269\u4f59\u53f7\u4e0d\u8db3\u544a\u8b66<\/li>\n
                        • \u52a0\u5206\u53e5：\u201cPod \u88ab kill -9 \u65f6\u6ca1\u6709\u4f18\u96c5\u9000\u51fa\u673a\u4f1a，\u6240\u4ee5\u4e0d\u80fd\u4f9d\u8d56\u2019\u4e3b\u52a8\u91ca\u653e\u2019，\u5fc5\u987b\u9760\u79df\u7ea6\u8fc7\u671f\u515c\u5e95\u3002\u201d<\/li>\n<\/ul>\n
                          \u2465 \u53f7\u6bb5\u4e0d\u8fde\u7eed，\u4e1a\u52a1\u80fd\u63a5\u53d7\u5417？<\/h5>\n

                          \u6838\u5fc3\u7b54\u6848：\u7edd\u5927\u591a\u6570\u80fd\u63a5\u53d7，\u5c11\u6570\u4e0d\u80fd\u3002<\/p>\n\n\u573a\u666f\u80fd\u63a5\u53d7\u5417\u7406\u7531<\/tr>\n\n\n\n\n
                          \u8ba2\u5355\/\u7528\u6237\/\u6d88\u606f ID<\/td>\n\u2705<\/td>\n\u53ea\u505a\u552f\u4e00\u6807\u8bc6\u4e0e\u6392\u5e8f，\u8df3\u53f7\u65e0\u5f71\u54cd<\/td>\n<\/tr>\n
                          \u5bf9\u8d26\u5355\u6d41\u6c34\u53f7\u3001\u53d1\u7968\u53f7<\/td>\n\u274c<\/td>\n\u8d22\u52a1\u5ba1\u8ba1\u8981\u6c42\u96f6\u7a7a\u6d1e<\/td>\n<\/tr>\n
                          \u9700\u8981"ID \u6570\u91cf = \u4e1a\u52a1\u91cf"\u5bf9\u8d26<\/td>\n\u274c<\/td>\n\u8df3\u53f7\u4f1a\u8ba9\u7edf\u8ba1\u53e3\u5f84\u5931\u771f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                            \n
                          • \u771f\u8981\u8fde\u7eed：\u5206\u6bb5\u53d1\u53f7 + \u53f7\u6c60\u56de\u6536（\u6210\u672c\u9ad8\u3001\u590d\u6742\u5ea6\u9661\u589e），\u6216\u9000\u56de\u5355\u70b9\u53d1\u53f7（\u727a\u7272\u53ef\u7528\u6027）<\/li>\n
                          • \u52a0\u5206\u53e5：\u201c\u5173\u952e\u8981\u5206\u6e05\u2019\u9012\u589e\u2019\u548c\u2019\u8fde\u7eed\u2019\u2014\u2014\u9012\u589e\u662f\u4e3a\u4e86\u7d22\u5f15\u5c40\u90e8\u6027，\u5fc5\u987b；\u8fde\u7eed\u662f\u4e1a\u52a1\u5ba1\u7f8e，\u4e0d\u4e00\u5b9a\u5fc5\u987b\u3002\u201d<\/li>\n<\/ul>\n
                            \u2466 DB \u6302\u4e86，\u53f7\u6bb5\u8fd8\u80fd\u53d1\u591a\u4e45？<\/h5>\n

                            \u6838\u5fc3\u7b54\u6848：\u5269\u4f59\u91cf \u00f7 \u5cf0\u503c QPS = \u53ef\u6491\u65f6\u957f，\u5fc5\u987b\u6309\u5cf0\u503c\u7b97，\u4e0d\u80fd\u6309\u5747\u503c\u3002<\/p>\n

                              \n
                            • \u4f8b：\u5f53\u524d\u53f7\u6bb5\u5269 4000 \u4e2a，\u5cf0\u503c 2 \u4e07 TPS \u2192 \u53ea\u80fd\u6491 200ms<\/li>\n
                            • \u7ed3\u8bba：\u53cc Buffer \u662f\u5fc5\u9700\u9879，\u4e0d\u662f\u4f18\u5316\u9879\u2014\u2014\u5426\u5219\u4e00\u6b21 200ms \u6296\u52a8\u5c31\u662f\u4e00\u6b21\u96ea\u5d29<\/li>\n
                            • buffer \u4e5f\u6491\u4e0d\u4f4f\u65f6：\u964d\u7ea7\u5230\u672c\u5730\u6587\u4ef6\u9884\u5206\u914d\u53f7\u6bb5（Leaf \u7684\u505a\u6cd5），\u4fdd\u6838\u5fc3\u94fe\u8def\u53ef\u5199<\/li>\n
                            • \u52a0\u5206\u53e5：\u201c\u8fd9\u4e2a\u6570\u5b57\u8981\u5728\u5927\u4fc3\u524d\u5b9e\u9645\u6f14\u7ec3\u4e00\u904d\u2014\u2014\u5f88\u591a\u4eba\u7b97\u5b8c\u624d\u53d1\u73b0\u81ea\u5df1\u53ea\u80fd\u6491 200 \u6beb\u79d2\u3002\u201d<\/li>\n<\/ul>\n
                              \u2467 \u600e\u4e48\u9a8c\u8bc1\u65b9\u6848\u771f\u7684\u4e0d\u4f1a\u91cd\u590d？<\/h5>\n

                              \u6838\u5fc3\u7b54\u6848：\u4e09\u5c42\u9a8c\u8bc1\u2014\u2014\u538b\u6d4b\u8fb9\u754c + \u6df7\u6c8c\u6ce8\u5165 + \u7ebf\u4e0a\u62bd\u6837\u76d1\u63a7\u3002<\/p>\n\n\u5c42\u505a\u4ec0\u4e48\u6293\u4ec0\u4e48<\/tr>\n\n\n\n\n
                              \u538b\u6d4b<\/td>\n\u628a\u5355\u673a\u6253\u5230 >409.6 \u4e07\/s，\u903c\u51fa\u5e8f\u5217\u53f7\u8017\u5c3d<\/td>\n\u81ea\u65cb\u3001\u8017\u65f6\u98d9\u5347<\/td>\n<\/tr>\n
                              \u6df7\u6c8c<\/td>\n\u6ce8\u5165\u65f6\u949f\u56de\u62e8 \/ workerID \u51b2\u7a81 \/ \u53f7\u6bb5\u8017\u5c3d<\/td>\n\u515c\u5e95\u662f\u5426\u771f\u751f\u6548<\/td>\n<\/tr>\n
                              \u7ebf\u4e0a<\/td>\n\u62bd\u6837\u5199 SETNX dup_check:{id} \u6216\u5e03\u9686\u8fc7\u6ee4\u5668，\u91cd\u590d\u7387\u5b9a P0 \u544a\u8b66<\/td>\n\u771f\u5b9e\u91cd\u590d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                                \n
                              • \u62bd\u6837 1%~5% \u5373\u53ef\u5728\u5206\u949f\u7ea7\u53d1\u73b0\u5f02\u5e38，\u4e0d\u9700\u8981\u5168\u91cf\u6bd4\u5bf9<\/li>\n
                              • \u52a0\u5206\u53e5：\u201c\u6ca1\u505a\u8fc7\u6df7\u6c8c\u6ce8\u5165\u7684\u2019\u515c\u5e95\u8bbe\u8ba1\u2019\u57fa\u672c\u7b49\u4e8e\u6ca1\u8bbe\u8ba1\u2014\u2014\u56e0\u4e3a\u4ece\u6765\u6ca1\u9a8c\u8bc1\u8fc7\u5b83\u4f1a\u4e0d\u4f1a\u771f\u7684\u751f\u6548\u3002\u201d<\/li>\n<\/ul>\n
                                \u2468 \u96ea\u82b1 vs \u53f7\u6bb5，\u4f60\u7684\u573a\u666f\u9009\u54ea\u4e2a？<\/h5>\n

                                \u6838\u5fc3\u7b54\u6848：\u5148\u8bf4\u51b3\u7b56\u7ef4\u5ea6，\u518d\u8bf4\u7ed3\u8bba\u548c\u4ee3\u4ef7，\u6700\u540e\u7ed9\u5207\u6362\u6761\u4ef6\u3002<\/p>\n

                                \u51b3\u7b56\u7ef4\u5ea6（\u56db\u4e2a）：<\/p>\n\n\u7ef4\u5ea6\u9009\u96ea\u82b1\u9009\u53f7\u6bb5<\/tr>\n\n\n\n\n\n
                                ID \u6709\u5e8f\u6027\u8981\u6c42<\/td>\n\u8d8b\u52bf\u9012\u589e\u5373\u53ef<\/td>\n\u8981\u6c42\u66f4\u4e25\u683c\u7684\u9012\u589e<\/td>\n<\/tr>\n
                                \u541e\u5410\u89c4\u6a21<\/td>\n\u6781\u9ad8（\u7eaf\u672c\u5730）<\/td>\n\u9ad8（\u53d7 buffer \u9650\u5236）<\/td>\n<\/tr>\n
                                DB \u4f9d\u8d56\u5bb9\u5fcd\u5ea6<\/td>\n\u5b8c\u5168\u4e0d\u60f3\u4f9d\u8d56<\/td>\n\u80fd\u63a5\u53d7\u4f4e\u9891\u4f9d\u8d56<\/td>\n<\/tr>\n
                                \u90e8\u7f72\u5f62\u6001<\/td>\n\u5bb9\u5668\u5316\u9891\u7e41\u6269\u7f29<\/td>\n\u673a\u5668\u76f8\u5bf9\u7a33\u5b9a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                \u53c2\u8003\u7ed3\u8bba（\u8ba2\u5355\u53f7\u573a\u666f：\u65e5\u5355 5000 \u4e07 \/ 3 \u673a\u623f \/ K8s）：<\/p>\n

                                \u53ef\u4ee5\u6df7\u5408：\u5bf9\u5916\u8ba2\u5355\u53f7\u7528\u53f7\u6bb5（\u8d8b\u52bf\u8fde\u7eed\u3001\u6297 DB \u6296\u52a8），\u5185\u90e8\u4e8b\u4ef6\/\u6d41\u6c34 ID \u7528\u96ea\u82b1（\u7eaf\u672c\u5730\u9ad8\u541e\u5410）\u3002
                                \n\u5355\u9009\u7528\u96ea\u82b1\u4e5f\u884c，\u4f46\u5fc5\u987b\u89e3\u51b3 workerID \u7533\u8bf7-\u91ca\u653e + \u56de\u62e8\u5206\u7ea7，\u4ee3\u4ef7\u662f\u6cbb\u7406\u6210\u672c\u3002
                                \n\u5982\u679c\u6761\u4ef6\u53d8\u5316\u2014\u2014\u6bd4\u5982\u8981\u6c42 ID \u7edd\u5bf9\u8fde\u7eed\u3001\u6216 DB \u53ef\u4ee5\u63a5\u53d7\u66f4\u9ad8\u9891\u8bbf\u95ee\u2014\u2014\u6211\u4f1a\u5207\u5230\u7eaf\u53f7\u6bb5\u6216"\u5206\u6bb5+\u53f7\u6c60"\u65b9\u6848\u3002<\/p>\n

                                  \n
                                • \u52a0\u5206\u53e5：\u201c\u6211\u9009 A，\u4ee3\u4ef7\u662f B；\u5982\u679c\u6761\u4ef6\u53d8\u6210 C，\u6211\u4f1a\u6362\u6210 D\u3002\u201d \u2014\u2014 \u80fd\u8bf4\u51fa\u8fd9\u53e5\u8bdd，\u8bf4\u660e\u662f\u771f\u505a\u8fc7\u53d6\u820d\u800c\u4e0d\u662f\u80cc\u65b9\u6848\u3002<\/li>\n<\/ul>\n
                                  \n

                                  \u5341\u3001\u751f\u4ea7 Checklist<\/h3>\n\n\u7c7b\u522b\u68c0\u67e5\u9879\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                                  \u7ed3\u6784<\/td>\nepoch \u5df2\u6587\u6863\u5316\u4e14\u4e0e\u5386\u53f2\u6570\u636e\u4e00\u81f4<\/td>\n\u6362 epoch = \u707e\u96be<\/td>\n<\/tr>\n
                                  <\/td>\n\u4f4d\u5206\u914d\u9884\u7559\u6269\u5c55\u4f4d<\/td>\n\u907f\u514d\u8fc7\u65e9\u8017\u5c3d<\/td>\n<\/tr>\n
                                  <\/td>\nworkerID \u6709\u8bed\u4e49（\u673a\u623f+\u673a\u5668）<\/td>\n\u4fbf\u4e8e\u6392\u969c<\/td>\n<\/tr>\n
                                  \u6807\u8bc6\u6cbb\u7406<\/td>\nworkerID \u5168\u5c40\u7533\u8bf7-\u91ca\u653e，\u7981\u6b62\u786c\u7f16\u7801<\/td>\n\u5bb9\u5668\u5316\u5fc5\u9700<\/td>\n<\/tr>\n
                                  <\/td>\n\u7533\u8bf7\u5e26 TTL \u79df\u7ea6，\u91ca\u653e\u5e42\u7b49<\/td>\n\u9632 Pod \u88ab kill \u540e\u53f7\u6cc4\u6f0f<\/td>\n<\/tr>\n
                                  <\/td>\n\u542f\u52a8\u6821\u9a8c\u65f6\u949f\u504f\u79fb，\u8d85\u9608\u503c\u62d2\u7edd\u542f\u52a8<\/td>\n\u9632\u5e26\u75c5\u4e0a\u7ebf<\/td>\n<\/tr>\n
                                  \u6027\u80fd\u515c\u5e95<\/td>\n\u53f7\u6bb5\u53cc Buffer，\u9608\u503c\u6709\u8ba1\u7b97\u4f9d\u636e<\/td>\n\u522b\u62cd\u8111\u888b<\/td>\n<\/tr>\n
                                  <\/td>\nloading \u6807\u5fd7\u5728 finally \u590d\u4f4d<\/td>\n\u9ad8\u9891\u5b9e\u73b0 bug<\/td>\n<\/tr>\n
                                  <\/td>\n\u5e8f\u5217\u53f7\u8017\u5c3d\u6709\u9000\u907f，\u975e\u88f8\u81ea\u65cb<\/td>\n\u9632 CPU \u6253\u6ee1<\/td>\n<\/tr>\n
                                  <\/td>\nDB \u4e0d\u53ef\u7528\u65f6\u6709\u964d\u7ea7\u8def\u5f84<\/td>\n\u4fdd\u6838\u5fc3\u94fe\u8def<\/td>\n<\/tr>\n
                                  \u53ef\u89c2\u6d4b<\/td>\n\u56db\u6307\u6807\u76d1\u63a7（\u8017\u65f6\/\u5269\u4f59\u91cf\/\u504f\u79fb\/\u91cd\u590d\u7387）<\/td>\n\u7f3a\u4e00\u4e0d\u53ef<\/td>\n<\/tr>\n
                                  <\/td>\n\u91cd\u590d\u7387\u544a\u8b66\u5b9a\u4e3a P0<\/td>\n\u552f\u4e00\u6027\u88ab\u7834\u574f<\/td>\n<\/tr>\n
                                  \u9a8c\u8bc1<\/td>\n\u538b\u6d4b\u8fc7\u5e8f\u5217\u53f7\u8017\u5c3d\u8fb9\u754c<\/td>\n\u8fb9\u754c\u6700\u6613\u51fa\u95ee\u9898<\/td>\n<\/tr>\n
                                  <\/td>\n\u6df7\u6c8c\u6ce8\u5165\u8fc7\u56de\u62e8\/\u8017\u5c3d\/workerID \u51b2\u7a81<\/td>\n\u9a8c\u8bc1\u515c\u5e95\u771f\u751f\u6548<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                                  \n

                                  \u5341\u4e00\u3001\u81ea\u6d4b\u9898（10 \u9898，\u80fd\u7b54 8 \u9898\u7b97\u8fc7\u5173）<\/h3>\n

                                  \u7b54\u6848\u8981\u70b9\u5728\u6bcf\u9898\u4e0b\u65b9，\u5148\u81ea\u5df1\u7b54，\u518d\u770b\u3002<\/p>\n

                                  Q1 \u96ea\u82b1 ID \u7684 41 \u4f4d\u65f6\u95f4\u6233\u4e00\u5171\u80fd\u7528\u591a\u5c11\u5e74？\u5230\u671f\u540e\u600e\u4e48\u529e？<\/p>\n

                                  \u7b54\u6848\u8981\u70b92^41 ms \u2248 69.7 \u5e74\u3002\u5230\u671f\u524d\u9700\u89c4\u5212\u65b0 epoch \u7070\u5ea6\u5207\u6362，\u6216\u6269\u65f6\u95f4\u4f4d（\u4e0d\u517c\u5bb9\u53d8\u66f4，\u8981\u63d0\u524d\u5f88\u591a\u5e74）\u3002<\/p>\n

                                  Q2 \u4e24\u53f0\u673a\u5668\u65f6\u949f\u5dee 1 \u79d2，\u4f1a\u751f\u6210\u91cd\u590d ID \u5417？\u4e3a\u4ec0\u4e48？<\/p>\n

                                  \u7b54\u6848\u8981\u70b9\u4e0d\u4f1a\u3002\u552f\u4e00\u6027\u7531 workerID \u4fdd\u8bc1，workerID \u4e0d\u540c\u5219 ID \u5fc5\u4e0d\u540c\u3002\u65f6\u949f\u53ea\u5f71\u54cd\u6709\u5e8f\u6027\u3002<\/p>\n

                                  Q3 \u5e8f\u5217\u53f7\u5728 1ms \u5185\u7528\u5c3d\u4e86，\u6b63\u786e\u505a\u6cd5\u662f\u4ec0\u4e48？<\/p>\n

                                  \u7b54\u6848\u8981\u70b9\u7b49\u5230\u4e0b\u4e00\u6beb\u79d2，\u4e14\u7b49\u5f85\u5fc5\u987b\u9000\u907f（Gosched \u6216 Sleep）\u3002\u88f8\u81ea\u65cb\u4f1a\u6253\u6ee1 CPU \u4e14\u4e0d\u4ea7\u751f ID\u3002<\/p>\n

                                  Q4 \u65f6\u949f\u56de\u62e8\u5206\u54ea\u51e0\u7ea7？\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u53ea\u7528\u4e00\u4e2a\u7b56\u7565？<\/p>\n

                                  \u7b54\u6848\u8981\u70b9\u6beb\u79d2\u7ea7\u7b49\u5f85 \/ \u767e\u6beb\u79d2\u7ea7\u5207\u5907\u7528 workerID \/ \u79d2\u7ea7\u6458\u8282\u70b9\u544a\u8b66 \/ \u542f\u52a8\u65f6\u62d2\u7edd\u542f\u52a8\u3002\u5168\u7b49\u5f85\u4f1a\u62d6\u6b7b\u94fe\u8def，\u5168\u62d2\u7edd\u4f1a\u88ab NTP \u6296\u52a8\u6253\u6302\u3002<\/p>\n

                                  Q5 \u53f7\u6bb5\u6a21\u5f0f\u53cc Buffer \u7684\u9884\u52a0\u8f7d\u9608\u503c\u600e\u4e48\u5b9a？<\/p>\n

                                  \u7b54\u6848\u8981\u70b9\u5269\u4f59\u91cf\/QPS > DB \u5f80\u8fd4\u8017\u65f6 \u00d7 \u5b89\u5168\u7cfb\u6570\u3002\u8981\u770b step \u5927\u5c0f，step \u592a\u5c0f\u5219\u5fc5\u987b\u62ff\u5230\u5c31\u9884\u52a0\u8f7d\u3002<\/p>\n

                                  Q6 \u53f7\u6bb5\u6a21\u5f0f\u4e3a\u4ec0\u4e48\u4f1a\u51fa\u73b0 ID \u4e0d\u8fde\u7eed？\u80fd\u4fee\u5417？<\/p>\n

                                  \u7b54\u6848\u8981\u70b9\u591a\u8282\u70b9\u5404\u81ea\u9886\u6bb5\u3002\u4fee\u4e0d\u4e86\u2014\u2014\u8981\u8fde\u7eed\u5c31\u5f97\u6bcf\u6b21\u8bbf\u95ee DB，\u6027\u80fd\u548c\u53ef\u7528\u6027\u5168\u6bc1\u3002<\/p>\n

                                  Q7 workerID \u5728 K8s \u4e0b\u5e94\u8be5\u600e\u4e48\u5206\u914d？<\/p>\n

                                  \u7b54\u6848\u8981\u70b9\u6ce8\u518c\u4e2d\u5fc3\u7533\u8bf7-\u91ca\u653e，\u5e26 TTL \u79df\u7ea6，\u91ca\u653e\u5e42\u7b49，\u5269\u4f59\u53f7\u4e0d\u8db3\u544a\u8b66\u3002\u786c\u7f16\u7801\u5fc5\u649e\u53f7\u3002<\/p>\n

                                  Q8 Redis INCR \u80fd\u4fdd\u8bc1\u7edd\u5bf9\u552f\u4e00\u5417？<\/p>\n

                                  \u7b54\u6848\u8981\u70b9\u4e0d\u80fd\u3002\u4e3b\u4ece\u5f02\u6b65\u590d\u5236，\u4e3b\u4ece\u5207\u6362\u53ef\u80fd\u4e22\u589e\u91cf\u5bfc\u81f4\u56de\u9000\u3002\u9700\u4e1a\u52a1\u552f\u4e00\u7d22\u5f15\u515c\u5e95\u3002<\/p>\n

                                  Q9 \u600e\u4e48\u5728\u4e0d\u505a\u5168\u91cf\u6bd4\u5bf9\u7684\u524d\u63d0\u4e0b\u76d1\u63a7 ID \u91cd\u590d？<\/p>\n

                                  \u7b54\u6848\u8981\u70b9\u62bd\u6837\u5199 Redis SETNX（\u6216\u5e03\u9686\u8fc7\u6ee4\u5668），1%~5% \u62bd\u6837\u5373\u53ef\u5206\u949f\u7ea7\u53d1\u73b0\u5f02\u5e38；\u91cd\u590d\u7387\u544a\u8b66\u5b9a P0\u3002<\/p>\n

                                  Q10 \u8ba2\u5355\u53f7\u573a\u666f（\u65e5\u5355 5000 \u4e07\u30013 \u673a\u623f\u3001K8s）：\u96ea\u82b1\u548c\u53f7\u6bb5\u4f60\u600e\u4e48\u9009？<\/p>\n

                                  \u7b54\u6848\u8981\u70b9\u53ef\u6df7\u5408：\u8ba2\u5355\u53f7\u7528\u53f7\u6bb5（\u8d8b\u52bf\u8fde\u7eed\u3001\u6297 DB \u6296\u52a8），\u5185\u90e8\u4e8b\u4ef6\/\u6d41\u6c34\u7528\u96ea\u82b1（\u7eaf\u672c\u5730\u9ad8\u541e\u5410）\u3002\u5355\u9009\u7528\u96ea\u82b1\u4e5f\u884c，\u4f46\u8981\u914d workerID \u7533\u8bf7-\u91ca\u653e + \u56de\u62e8\u5206\u7ea7\u3002\u5173\u952e\u662f\u80fd\u8bf4\u51fa\u53d6\u820d\u4ee3\u4ef7\u3002<\/p>\n

                                  \n

                                  🧠 \u4e00\u53e5\u8bdd\u5e26\u8d70<\/h3>\n

                                  \u5206\u5e03\u5f0f ID \u7684\u672c\u8d28\u662f"\u7528\u4f4d\u5206\u914d\u6362\u6027\u80fd，\u7528 workerID \u6362\u552f\u4e00\u6027，\u7528 buffer \u6362\u53ef\u7528\u6027"；\u65f6\u949f\u56de\u62e8\u662f\u552f\u4e00\u80fd\u771f\u6b63\u6253\u7834\u552f\u4e00\u6027\u7684\u88c2\u7f1d，\u6240\u4ee5\u8981\u7528\u5206\u7ea7\u515c\u5e95 + \u8de8\u91cd\u542f\u6c34\u4f4d\u7ebf\u628a\u5b83\u710a\u6b7b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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                                  \n\u6280\u672f\u6808：\u8bed\u8a00\u65e0\u5173\u3002\u4ee3\u7801\u4ee5 Go \u4e3e\u4f8b，Java \u751f\u6001\u5bf9\u5e94 Leaf\u3001UidGenerator\u3001TinyID
                                  \n\u96be\u5ea6：\u2b50\u2b50\u2b50\u2b50（\u9700\u8981\u4e86\u89e3\u5206\u5e93\u5206\u8868\u4e0e\u5e76\u53d1\u57fa\u7840）
                                  \n\u9605\u8bfb\u65f6\u957f：5 \u5206\u949f\u770b\u300c\u901f\u89c8\u300d｜20 \u5206\u949f\u8bfb\u5168\u6587｜30 \u5206\u949f\u542b\u81ea\u6d4b\u9898🎯 \u4e00\u53e5\u8bdd\u5b9a\u4f4d<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1862,664,427],"topic":[],"class_list":["post-120635","post","type-post","status-publish","format-standard","hentry","category-server","tag-wpf","tag-664","tag-427"],"yoast_head":"\n\u5206\u5e03\u5f0f ID \u751f\u6210\u65b9\u6848\uff1a\u96ea\u82b1\u7b97\u6cd5\u4e0e\u53f7\u6bb5\u6a21\u5f0f - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/120635.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5206\u5e03\u5f0f ID \u751f\u6210\u65b9\u6848\uff1a\u96ea\u82b1\u7b97\u6cd5\u4e0e\u53f7\u6bb5\u6a21\u5f0f - 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