{"id":84287,"date":"2020-05-15T14:37:37","date_gmt":"2020-05-15T06:37:37","guid":{"rendered":"http:\/\/4563.org\/?p=84287"},"modified":"2020-05-15T14:37:37","modified_gmt":"2020-05-15T06:37:37","slug":"%e8%bf%99%e7%a7%8d%e6%83%85%e5%86%b5%e4%b8%8b%e6%98%af%e5%90%a6%e9%9c%80%e8%a6%81%e5%88%86%e8%a1%a8","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=84287","title":{"rendered":"\u8fd9\u79cd\u60c5\u51b5\u4e0b\u662f\u5426\u9700\u8981\u5206\u8868"},"content":{"rendered":"
\n
\n
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\u8fd9\u79cd\u60c5\u51b5\u4e0b\u662f\u5426\u9700\u8981\u5206\u8868 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : mamasan <\/span> <\/i> 0<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
\u5f88\u4e45\u524d\u4e00\u4e2a\u9879\u76ee\u4e86. \u5c31\u662f\u7c7b\u4f3c\u652f\u4ed8\u5b9d\u5e74\u5ea6\u8d26\u5355\u8fd9\u79cd.<\/p>\n

\u6570\u636e\u5e93\u662f SQL Server. \u6570\u636e\u4e00\u4ebf\u591a\u6761\u5427.<\/p>\n

\u5f88\u7b80\u5355\u7684\u63a5\u53e3, \u4f20\u5165\u7528\u6237\u7684 id, \u8fd4\u56de\u8fd9\u6761\u8bb0\u5f55. <\/p>\n

\u56e0\u4e3a\u52a0\u4e86\u7d22\u5f15, \u6240\u4ee5\u67e5\u8be2\u8d77\u6765\u90fd\u662f ms \u7ea7\u7684, \u6240\u4ee5\u5c31\u6ca1\u505a\u5206\u8868\u4e86.<\/p>\n

\u4f46\u662f\u7532\u65b9\u540e\u6765\u77e5\u9053\u4e86, \u5c31\u5f00\u59cb\u8d23\u5907\u4e3a\u4ec0\u4e48\u4e0d\u5206\u8868.<\/p>\n

\u6240\u4ee5\u60f3\u95ee\u4e0b, \u5982\u679c\u67e5\u8be2\u65f6\u95f4\u4e0a\u5b8c\u5168\u6ca1\u6709\u95ee\u9898, \u6570\u636e\u4e5f\u662f\u4e00\u6b21\u5bfc\u5165\u4e0d\u4f1a\u589e\u52a0\u4e86. \u8fd9\u79cd\u60c5\u51b5\u4e0b, \u4e0d\u5206\u8868\u6709\u95ee\u9898\u5417?<\/p>\n

\u8fd8\u662f\u8bf4\u4f1a\u5f71\u54cd\u5230\u6574\u4e2a\u6570\u636e\u5e93\u6027\u80fd? <\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (17<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : littlewing <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u7532\u65b9\u662f\u7238\u7238\uff0c\u4ed6\u4eec\u600e\u4e48\u8bf4\u4f60\u600e\u4e48\u6765 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : mamasan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @littlewing \u4e8b\u60c5\u5df2\u7ecf\u8fc7\u4e86, \u7eaf\u6280\u672f\u65b9\u9762\u63a2\u8ba8. \u60f3\u77e5\u9053\u4e0b, \u8fd9\u79cd\u5927\u8868\u662f\u5426\u4f1a\u9020\u6210\u6570\u636e\u5e93\u6027\u80fd\u7684\u95ee\u9898. \u7279\u522b\u662f\u4e5f\u6709\u522b\u7684\u9879\u76ee\u5728\u540c\u4e00\u4e2a\u6570\u636e\u5e93\u4e0a. <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : opengps <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u53ef\u4ee5\u5148\u8f7b\u677e\u7528\u8868\u5206\u533a\u6765\u7a0d\u5fae\u63d0\u9ad8\u4e0b\u67e5\u8be2\u6548\u7387 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : saulshao <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u8bf4\u7684\u60c5\u51b5,\u76ee\u524d\u7684\u6570\u636e\u91cf\u4e00\u4ebf\uff0c\u4e0d\u4f1a\u518d\u589e\u52a0\uff0c\u4e0d\u5206\u8868\u95ee\u9898\u4e0d\u5927\u3002
    \u4f46\u662f\u8fd9\u79cd\u4e8b\u60c5\u5176\u5b9e\u5f88\u96be\u9884\u6599\uff0c\u4e5f\u8bb8\u4f60\u7684\u4e89\u8bba\u5bf9\u7acb\u65b9\u638c\u63e1\u4e86\u4ec0\u4e48\u4f60\u4e0d\u77e5\u9053\u7684\u4fe1\u606f\u4e5f\u4e0d\u4e00\u5b9a\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : chiuan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u52a0\u7d22\u5f15\u4e00\u822c\u90fd\u80fd\u6ee1\u8db3\u9700\u6c42\u4e86\u5427\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : sagaxu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u8fd9\u79cd\u60c5\u51b5\uff0c\u5206\u8868\u76f8\u5f53\u4e8e\u4eba\u5de5\u7ed9\u7d22\u5f15\u589e\u52a0\u4e00\u5c42\uff0c\u80fd\u5e26\u6765\u4ec0\u4e48\u63d0\u5347\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : peyppicp <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @sagaxu \u591a\u4e00\u4e2a\u54c8\u5e0c\u548c\u53d6\u6a21\u80fd\u6709\u5565\u5f00\u9500\uff1f\u767e\u4e07\u7ea7\u6570\u636e\u91cf\u67e5\u8be2\u548c\u4ebf\u7ea7\u522b\u67e5\u8be2\uff0c\u5c31\u7b97\u547d\u4e2d\u7d22\u5f15\u8017\u8d39\u7684\u65f6\u95f4\u8fdc\u5927\u4e8e\u54c8\u5e0c\u53d6\u6a21\u3002<\/p>\n

    \u5982\u679c\u8017\u65f6 10ms \u5185\u53ef\u4ee5\u4e0d\u7528\u4f18\u5316\u3002pct99 \u4e00\u76f4\u4e0d\u7a33\u7684\u8bdd\u53ef\u4ee5\u8003\u8651\u5206\u5e93\u5206\u8868 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : index90 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5176\u5b9e\u7532\u65b9\u60f3\u8981\u7684\u662f\u8fd9\u4e2a\u7cfb\u7edf\u53ef\u6269\u5bb9\uff0c\u5982\u679c\u4f60\u6709\u6269\u5bb9\u65b9\u6848\uff0c\u4e0d\u5206\u8868\u4e5f\u884c\u3002
    \u4f60\u73b0\u5728\u662f sql server\uff0c\u4f60\u53ef\u4ee5\u7528\u5206\u533a\u554a <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : sagaxu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    sharding \u7684\u76ee\u7684\u662f\u8ba9\u6570\u636e\u5206\u5e03\u5230\u4e0d\u540c\u7684 instance\uff0c\u4e00\u822c\u662f\u4e0d\u540c\u7684 server\uff0c\u591a\u53f0 server \u7684 cpu \u548c io \u80fd\u529b\u53ef\u4ee5\u53e0\u52a0\u3002<\/p>\n

    \u540c\u4e00\u4e2a instance \u5185\uff0c\u6709\u65f6\u4f1a\u5206\u8868\u6216\u5206\u533a\uff0c\u6bd4\u5982\u8ba2\u5355\u6309\u65e5\u671f\u5206\uff0c\u7531\u4e8e\u4e00\u822c\u60c5\u51b5\u53ea\u4f1a\u8bbf\u95ee\u51e0\u4e2a\u6708\u4ee5\u5185\u7684\u8ba2\u5355\uff0c\u5206\u533a\u505a\u5230\u4e86\u51b7\u70ed\u6570\u636e\u5206\u79bb\uff0c\u51cf\u5c11\u4e86\u70ed\u6570\u636e\u89c4\u6a21\u3002<\/p>\n

    \u4f46\u662f\u540c\u4e00\u4e2a instance \u5185\uff0c\u4e0d\u533a\u5206\u51b7\u70ed\u6570\u636e\u7684\u5206\u8868\uff0c\u63d0\u5347\u5c31\u4e0d\u592a\u660e\u663e\u4e86\uff0c\u867d\u7136\u5f88\u591a\u9879\u76ee\u90fd\u65e0\u8111\u8fd9\u4e48\u505a\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : starcraft <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u7532\u65b9\u5c45\u7136\u8fd8\u4f1a\u7ba1\u5206\u8868\u7ba1\u8fd9\u4e48\u7ec6\u3002\u4e00\u4ebf\u6570\u636e\uff0c\u53ea\u8981\u4f60\u8bf4\u7684 ms \u4e0d\u662f\u4ee5\u5343\u8ba1\u7684\u90a3\u79cd\uff0c\u90a3\u771f\u662f\u5403\u9971\u4e86\u6491\u7684\u3002\u5efa\u8bae\u8ba9\u7532\u65b9\u6d3e\u4e2a\u81ea\u5df1\u7684\u6280\u672f\u6765\u6307\u5bfc\uff0c\u8fd9\u4e2a\u4eba\u80af\u5b9a\u61c2\u7684\u591a\uff0c\u6279\u8981\u6c42\u4e00\u4e2a\u4e2a\u7684\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : sagaxu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @peyppicp hash \u4e4b\u540e\u4e0d\u8fd8\u5f97\u67e5\u7d22\u5f15\uff1f\u628a\u4e00\u4e2a\u5927\u7d22\u5f15\u62c6\u6210 10 \u4e2a\u5c0f\u7d22\u5f15\uff0c\u5982\u679c\u8fd9 10 \u4e2a\u6ca1\u6709\u51b7\u70ed\u4e4b\u5206\uff0c\u603b\u91cf\u5e76\u6ca1\u6709\u51cf\u5c11\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : peyppicp <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @sagaxu \u5927\u7d22\u5f15\u547d\u4e2d\u5355\u6761\u6570\u636e\u786c\u76d8 io \u6b21\u6570\u4e0d\u4e00\u6837\u5427\uff0c\u4e00\u822c\u6765\u8bb2\uff0c\u6309\u7167 mysql \u7684 b+\u6811\uff0c \u767e\u4e07\u6570\u636e 3 \u6b21 io\uff0c\u5343\u4e07\u6570\u636e 4 \u6b21 io \u4e86\u3002\u4ebf\u7ea7\u522b\u7684\u6570\u636e 5 \u6b21 io<\/p>\n

    \u603b\u91cf\u6ca1\u6709\u51cf\u5c11\uff0c\u4f46\u662f\u4f60\u67e5\u8be2\u53ea\u4f1a\u843d\u5230\u5206\u7247\u4e0a\uff0c\u4e0d\u4f1a\u8d70\u6240\u6709\u7d22\u5f15\u554a\u30025 \u6b21 io \u51cf\u5c11\u5230 3 \u6b21 io \u63d0\u5347\u5df2\u7ecf\u5f88\u660e\u663e\u4e86\u597d\u5427 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : sagaxu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @peyppicp \u4ece 5 \u6b21\u51cf\u5c11\u5230 3 \u6b21\uff0c\u5f97\u5206\u51e0\u5343\u4e2a\u8868\u4e86\uff0c\u5b9a\u4f4d\u8fd9\u51e0\u5343\u4e2a\u8868\u672c\u8eab\u4e5f\u662f\u4e24\u5c42\u67e5\u627e\uff0c\u603b\u67e5\u627e\u5c42\u6570\u4f3c\u4e4e\u6ca1\u6709\u51cf\u5c11\u3002\u6781\u7aef\u60c5\u51b5\u4e0b\uff0c\u6211\u6bcf 20 \u6761\u8bb0\u5f55\u5206\u4e00\u4e2a\u8868\uff0c\u662f\u4e0d\u662f\u5c31\u53ea\u6709\u4e00\u6b21 IO \u4e86\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : peyppicp <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @sagaxu \u7d22\u5f15\u952e\u5408\u7406\u7684\u8bdd\uff0c\u5343\u4e07\u6761\u4ee5\u4e0b\u53ef\u4ee5 3 \u6b21 io \u3002
    5 \u6b21 io \u5230 3 \u6b21 io \u8981\u5206\u51e0\u5343\u4e2a\u8868\uff0c\u662f\u7ebf\u4e0a\u4e1a\u52a1\u4e2d\u6ca1\u6709\u8d70\u8fc7\u8fd9\u5757\u903b\u8f91\u5427\uff1f\u8fd9\u79cd\u60c5\u51b5\u4e0b\u7b80\u5355\u5206 101 \u4e2a\u8868\u5c31\u8db3\u591f\u4e86\uff0c\u4ebf\u7ea7\u522b\u6570\u636e\u76f4\u63a5\u964d\u5230\u767e\u4e07\uff0c\u4e0d\u77e5\u9053\u4f60\u51e0\u5343\u4e2a\u8868\u600e\u4e48\u7b97\u51fa\u6765\u7684\u3002<\/p>\n

    \u6781\u7aef\u60c5\u51b5\u4e0d\u7528\u63d0\u4e86\uff0c\u6ca1\u5565\u610f\u4e49 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : sagaxu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @peyppicp \u6309\u4e00\u4e2a\u8282\u70b9 50 \u5230 100 \u4e2a\u7b97\uff0c\u4e24\u5c42\u5c31\u662f 2500 \u5230 10000 \u3002<\/p>\n

    1. \u5206 n \u4e2a\u8868\u4e4b\u540e\uff0c\u6bcf\u4e2a\u8868\u7d22\u5f15\u662f\u4e4b\u524d\u7684 1\/n
    2. n \u4e2a\u5206\u8868\u7684\u603b\u7d22\u5f15\u5927\u5c0f\uff0c\u8ddf\u5206\u8868\u524d\u4e00\u6837
    3. \u968f\u673a\u5168\u91cf\u67e5\u4e00\u6b21\u6bcf\u4e00\u884c\uff0c\u76f8\u5f53\u4e8e\u968f\u673a\u904d\u5386\u7d22\u5f15\u7684\u6bcf\u4e00\u4e2a\u8282\u70b9
    4. IO \u603b\u91cf\u5c31\u662f\u7d22\u5f15\u8bfb\u53d6\u91cf
    5. \u7d22\u5f15\u91cf\u4e00\u6837\uff0c\u6240\u4ee5 IO \u91cf\u4e00\u6837<\/p>\n

    \u672c\u6765\u6709 5 \u5c42\u7684\u65f6\u5019\uff0c\u5982\u679c\u7b2c 4 \u5c42\u5f00\u59cb\u9891\u7e41\u51fa\u73b0 cache miss\uff0c\u5206\u8868\u4e4b\u540e\uff0c\u6bcf\u4e2a\u8868\u80fd\u7528\u7684 cache \u4e5f\u8981\u88ab\u5e73\u5206\uff0c\u53ef\u80fd\u7b2c 3 \u5c42\u5c31\u5f00\u59cb\u9891\u7e41\u7684 cache miss \u4e86\uff0c\u5747\u644a\u4e0b\u6765\u78c1\u76d8 IO \u6b21\u6570\u5e76\u6ca1\u6709\u51cf\u5c11\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : peyppicp <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @sagaxu \u4e3b\u8fd9\u91cc\u6709\u660e\u786e\u7684 userId\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0d\u9700\u8981\u67e5\u5168\u91cf\u7684\u7d22\u5f15\uff0c\u8fd9\u79cd\u53ea\u8981 hash \u4e00\u4e0b userId \u786e\u5b9a\u54ea\u4e2a\u8868\u597d\u4e86\u5427\uff0c\u8fd9\u79cd\u65f6\u5019\u7d22\u5f15\u91cf\u5c31\u662f 1\/n\uff0cio \u4e5f\u5c11\u4e86
    \u5982\u679c\u8981\u5168\u8868\u626b\u63cf\u5206\u5e93\u5206\u8868\u7684\u65b9\u6848\u5f88\u96be\u505a\u7f62\u4e86\uff0c\u53ea\u80fd\u501f\u52a9\u4e8e hive <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : sagaxu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @peyppicp \u53ea\u67e5\u4e00\u4e2a\u7528\u6237\uff0c\u53ea\u843d\u5230\u4e00\u4e2a\u5206\u533a\uff0c\u8fd9\u662f\u628a\u6570\u636e\u89c4\u6a21\u7f29\u5c0f\u5230 1\/n \u4e86\uff0c\u5f53\u7136\u5feb\u7684\u591a\u3002\u73b0\u5b9e\u573a\u666f\u4e0d\u4f1a\u7ed9\u4f60\u53ea\u547d\u4e2d\u5c11\u91cf\u8868\u7684\u5c40\u90e8\u6027\u4f18\u52bf\uff0c\u4efb\u610f\u4e00\u5206\u949f\u5185\u90fd\u4f1a\u591a\u6b21\u547d\u4e2d\u6240\u6709\u8868\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u8fd9\u79cd\u60c5\u51b5\u4e0b\u662f\u5426\u9700\u8981\u5206\u8868 \u8cc7\u6df1\u5927\u4f6c …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/84287"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=84287"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/84287\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=84287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=84287"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=84287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}