{"id":915,"date":"2025-03-22T14:41:47","date_gmt":"2025-03-22T06:41:47","guid":{"rendered":"https:\/\/eve2333.top\/?p=915"},"modified":"2025-03-22T14:41:47","modified_gmt":"2025-03-22T06:41:47","slug":"mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e5%85%a5%e9%97%a8%e5%88%b0%e5%a4%a7%e8%9b%87%e5%b0%9a%e7%a1%85%e8%b0%b7%e5%ae%8b%e7%ba%a2%e5%ba%b7%e8%80%81%e5%b8%88%e7%ac%94%e8%ae%b0-%e9%ab%98%e7%ba%a7%e7%af%87-p-12","status":"publish","type":"post","link":"https:\/\/eve2333.top\/?p=915","title":{"rendered":"MySQL\u6570\u636e\u5e93\u5165\u95e8\u5230\u5927\u86c7\u5c1a\u7845\u8c37\u5b8b\u7ea2\u5eb7\u8001\u5e08\u7b14\u8bb0 \u9ad8\u7ea7\u7bc7 part12"},"content":{"rendered":"\n<p>\u200b<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">&nbsp;\u7b2c12\u7ae0_\u6570\u636e\u5e93\u5176\u5b83\u8c03\u4f18\u7b56\u7565<\/h1>\n\n\n\n<p>&nbsp;&nbsp;\u6211\u4eec\u9700\u8981\u8c03\u4f18\u7684\u5bf9\u8c61\u662f\u6574\u4e2a\u6570\u636e\u5e93\u7ba1\u7406\uff0c\u5b83\u4e0d\u4ec5\u5305\u62ecSQL\u67e5\u8be2\uff0c\u8fd8\u5305\u62ec\u6570\u636e\u5e93\u7684\u90e8\u7f72\u914d\u7f6e\u3001\u67b6\u6784\u7b49\u3002\u4ece\u8fd9\u4e2a\u89d2\u5ea6\u6765\u8bf4\uff0c\u6211\u4eec\u601d\u8003\u7684\u7ef4\u5ea6\u5c31\u4e0d\u4ec5\u4ec5\u5c40\u9650\u5728S\u5316\u4e0a\u4e86\u3002\u901a\u8fc7\u5982\u4e0b\u7684\u6b65\u9aa4\u6211\u4eec\u8fdb\u884c\u68b3\u7406\uff1a<\/p>\n\n\n\n<p>DBMS\u7684\u9009\u62e9\u5173\u7cfb\u5230\u4e86\u540e\u9762\u7684\u6574\u4e2a\u8bbe\u8ba1\u8fc7\u7a0b\uff0c\u6240\u4ee5\u7b2c\u4e00\u6b65\u5c31\u662f\u8981\u9009\u62e9\u9002\u5408\u7684DBMS\u3002\u5982\u679c\u5df2\u7ecf\u786e\u5b9a\u597d\u4e86DBMS\uff0c\u90a3\u4e48\u8fd9\u6b65\u53ef\u4ee5\u8df3\u8fc7\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7b2c2\u6b65\uff1a\u4f18\u5316\u8868\u8bbe\u8ba1<\/h4>\n\n\n\n<p>\u9009\u62e9\u4e86DBMS\u4e4b\u540e\uff0c\u6211\u4eec\u5c31\u9700\u8981\u8fdb\u884c\u8868\u8bbe\u8ba1\u4e86\u3002\u800c\u6570\u636e\u8868\u7684\u8bbe\u8ba1\u65b9\u5f0f\u4e5f\u76f4\u63a5\u5f71\u54cd\u4e86\u540e\u7eed\u7684SQL\u67e5\u8be2\u8bed\u53e5\u3002RDBMS\u4e2d\uff0c\u6bcf\u4e2a\u5bf9\u8c61\u90fd\u53ef\u4ee5\u5b9a\u4e49\u4e3a\u4e00\u5f20\u8868\uff0c\u8868\u4e0e\u8868\u4e4b\u95f4\u7684\u5173\u7cfb\u4ee3\u8868\u4e86\u5bf9\u8c61\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u5982\u679c\u7528\u7684\u662fMySQL\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u8868\u7684\u4f7f\u7528\u9700\u6c42\uff0c\u9009\u62e9\u4e0d\u540c\u7684\u5b58\u50a8\u5f15\u64ce\u3002\u9664\u6b64\u4ee5\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u4f18\u5316\u7684\u539f\u5219\u53ef\u4ee5\u53c2\u8003\uff1a<\/p>\n\n\n\n<p>1.\u8868\u7ed3\u6784\u8981\u5c3d\u91cf\u9075\u5faa\u4e09\u8303\u5f0f\u7684\u539f\u5219\u3002\u8fd9\u6837\u53ef\u4ee5\u8ba9\u6570\u636e\u7ed3\u6784\u66f4\u52a0\u6e05\u6670\u89c4\u8303\uff0c\u51cf\u5c11\u5197\u4f59\u5b57\u6bb5\uff0c\u540c\u65f6\u4e5f\u51cf\u5c11\u4e86\u5728\u66f4\u65b0\uff0c\u63d2\u5165\u548c\u5220\u9664\u6570\u636e\u65f6\u7b49\u5f02\u5e38\u60c5\u51b5\u7684\u53d1\u751f\u3002<\/p>\n\n\n\n<p>2.\u5982\u679c\u67e5\u8be2\u5e94\u7528\u6bd4\u8f83\u591a\uff0c\u5c24\u5176\u662f\u9700\u8981\u8fdb\u884c\u591a\u8868\u8054\u67e5\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u91c7\u7528\u53cd\u8303\u5f0f\u8fdb\u884c\u4f18\u5316\u3002\u53cd\u8303\u5f0f\u91c7\u7528\u7a7a\u952e\u6362\u65f6\u95f4\u7684\u65b9\u5f0f\uff0c\u901a\u8fc7\u589e\u52a0\u5197\u4f59\u5b57\u6bb5\u63d0\u9ad8\u67e5\u8be2\u7684\u6548\u7387\u3002<\/p>\n\n\n\n<p>3.\u8868\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u9009\u62e9\uff0c\u5173\u7cfb\u5230\u4e86\u67e5\u8be2\u6548\u7387\u7684\u9ad8\u4f4e\u4ee5\u53ca\u5b58\u50a8\u7a7a\u95f4\u7684\u5927\u5c0f\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u5982\u679c\u5b57\u6bb5\u53ef\u4ee5\u91c7\u7528\u6570\u503c\u7c7b\u578b\u5c31\u4e0d\u8981\u91c7\u7528\u5b57\u7b26\u7c7b\u578b\uff1b\u5b57\u7b26\u957f\u5ea6\u8981\u5c3d\u53ef\u80fd\u8bbe\u8ba1\u5f97\u77ed\u4e00\u4e9b\u3002\u9488\u5bf9\u5b57\u7b26\u7c7b\u578b\u6765\u8bf4\uff0c\u5f53\u786e\u5b9a\u5b57\u7b26\u957f\u5ea6\u56fa\u5b9a\u65f6\uff0c\u5c31\u53ef\u4ee5\u91c7\u7528CHAR\u7c7b\u578b\uff1a\u5f53\u957f\u5ea6\u4e0d\u56fa\u5b9a\u65f6\uff0c\u901a\u5e38\u91c7\u7528VARCHAR\u7c7b\u578b\u3002<\/p>\n\n\n\n<p>\u6570\u636e\u8868\u7684\u7ed3\u6784\u8bbe\u8ba1\u5f88\u57fa\u7840\uff0c\u4e5f\u5f88\u5173\u952e\u3002\u597d\u7684\u8868\u7ed3\u6784\u53ef\u4ee5\u5728\u4e1a\u52a1\u53d1\u5c55\u548c\u7528\u6237\u91cf\u589e\u52a0\u7684\u60c5\u51b5\u4e0b\u4f9d\u7136\u53d1\u6325\u4f5c\u7528\uff0c\u4e0d\u597d\u7684\u8868\u7ed3\u6784\u8bbe\u8ba1\u4f1a\u8ba9\u6570\u636e\u8868\u53d8\u5f97\u975e\u5e38\u81c3\u80bf\uff0c\u67e5\u8be2\u6548\u7387\u4e5f\u4f1a\u964d\u4f4e\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7b2c3\u6b65\uff1a\u4f18\u5316\u903b\u8f91\u67e5\u8be2<\/h4>\n\n\n\n<p>\u5f53\u6211\u4eec\u5efa\u7acb\u597d\u6570\u636e\u8868\u4e4b\u540e\uff0c\u5c31\u53ef\u4ee5\u5bf9\u6570\u636e\u8868\u8fdb\u884c\u589e\u5220\u6539\u67e5\u7684\u64cd\u4f5c\u4e86\u3002\u8fd9\u65f6\u6211\u4eec\u9996\u5148\u9700\u8981\u8003\u8651\u7684\u662f\u903b\u8f91\u67e5\u8be2\u4f18\u5316\u3002SQL\u67e5\u8be2\u4f18\u5316\uff0c\u53ef\u4ee5\u5206\u4e3a\u903b\u8f91\u67e5\u8be2\u4f18\u5316\u548c\u7269\u7406\u67e5\u8be2\u4f18\u5316\u3002\u903b\u8f91\u67e5\u8be2\u4f18\u5316\u5c31\u662f\u901a\u8fc7\u6539\u53d8SQL\u8bed\u53e5\u7684\u5185\u5bb9\u8ba9SQL\u6267\u884c\u6548\u7387\u66f4\u9ad8\u6548\uff0c\u91c7\u7528\u7684\u65b9\u5f0f\u662f\u5bf9SQL\u8bed\u53e5\u8fdb\u884c\u7b49\u4ef7\u53d8\u6362\uff0c\u5bf9\u67e5\u8be2\u8fdb\u884c\u91cd\u5199\u3002&nbsp;<\/p>\n\n\n\n<p><strong>SQL\u7684\u67e5\u8be2\u91cd\u5199\u5305\u62ec\u4e86\u5b50\u67e5\u8be2\u4f18\u5316\u3001\u7b49\u4ef7\u8c13\u8bcd\u91cd\u5199\u3001\u89c6\u56fe\u91cd\u5199\u3001\u6761\u4ef6\u7b80\u5316\u3001\u8fde\u63a5\u6d88\u9664\u548c\u5d4c\u5957\u8fde\u63a5\u6d88\u9664\u7b49\u3002<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u4e3e\u4f8b\uff1a\u67e5\u8be2\u8bc4\u8bba\u5185\u5bb9\u5f00\u5934\u4e3a abc \u7684\u5185\u5bb9\u90fd\u6709\u54ea\u4e9b\uff0c\u5982\u679c\u5728 WHERE \u5b50\u53e5\u4e2d\u4f7f\u7528\u4e86\u51fd\u6570\uff0c\n\u8bed\u53e5\u5c31\u4f1a\u5199\u6210\u4e0b\u9762\u8fd9\u6837\uff1a\n\nSELECT comment_id, comment_text, comment_time FROM product_comment \nWHERE SUBSTRING(comment_text, 1, 3) = 'abc'\n\u91c7\u7528\u67e5\u8be2\u91cd\u5199\u7684\u65b9\u5f0f\u8fdb\u884c\u7b49\u4ef7\u66ff\u6362\uff1a\n\nSELECT comment_id, comment_text, comment_time FROM product_comment \nWHERE comment_text LIKE 'abc%'<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u7b2c4\u6b65\uff1a\u4f18\u5316\u7269\u7406\u67e5\u8be2<\/h4>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u90e8\u5206\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u638c\u63e1\u7684\u91cd\u70b9\u662f\u5bf9\u7d22\u5f15\u7684\u521b\u5efa\u548c\u4f7f\u7528\u3002\u4f46\u7d22\u5f15\u4e0d\u662f\u4e07\u80fd\u7684\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u6765\u521b\u5efa\u7d22\u5f15\u3002<\/p>\n\n\n\n<p>SQL\u67e5\u8be2\u65f6\u9700\u8981\u5bf9\u4e0d\u540c\u7684\u6570\u636e\u8868\u8fdb\u884c\u67e5\u8be2\uff0c\u56e0\u6b64\u5728\u7269\u7406\u67e5\u8be2\u4f18\u5316\u9636\u6bb5\u4e5f\u9700\u8981\u786e\u5b9a\u8fd9\u4e9b\u67e5\u8be2\u6240\u91c7\u7528\u7684\u8def\u5f84\uff0c\u5177\u4f53\u7684<br>\u60c5\u51b5\u5305\u62ec\uff1a<br>1\uff0e\u5355\u8868\u626b\u63cf\uff1a\u5bf9\u4e8e\u5355\u8868\u626b\u63cf\u6765\u8bf4\uff0c\u6211\u4eec\u53ef\u4ee5\u5168\u8868\u626b\u63cf\u6240\u6709\u7684\u6570\u636e\uff0c\u4e5f\u53ef\u4ee5\u5c40\u90e8\u626b\u63cf\u3002<br>2.&nbsp; &nbsp;\u4e24\u5f20\u8868\u7684\u8fde\u63a5\uff1a\u5e38\u7528\u7684\u8fde\u63a5\u65b9\u5f0f\u5305\u62ec\u4e86\u5d4c\u5957\u5faa\u73af\u8fde\u63a5\u3001HASH\u8fde\u63a5\u548c\u5408\u5e76\u8fde\u63a5\u3002<br>3.&nbsp; &nbsp;\u591a\u5f20\u8868\u7684\u8fde\u63a5\uff1a\u591a\u5f20\u6570\u636e\u8868\u8fdb\u884c\u8fde\u63a5\u7684\u65f6\u5019\uff0c\u987a\u5e8f\u5f88\u91cd\u8981\uff0c\u56e0\u4e3a\u4e0d\u540c\u7684\u8fde\u63a5\u8def\u5f84\u67e5\u8be2\u7684\u6548\u7387\u4e0d\u540c\uff0c\u641c\u7d22\u7a7a\u95f4\u4e5f\u4f1a\u4e0d\u540c\u3002\u6211\u4eec\u5728\u8fdb\u884c\u591a\u8868\u8fde\u63a5\u7684\u65f6\u5019\uff0c\u641c\u7d22\u7a7a\u95f4\u53ef\u80fd\u4f1a\u8fbe\u5230\u5f88\u9ad8\u7684\u6570\u636e\u91cf\u7ea7\uff0c\u5de8\u5927\u7684\u641c\u7d22\u7a7a\u95f4\u663e\u7136\u4f1a\u5360\u7528\u66f4\u591a\u7684\u8d44\u6e90\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u901a\u8fc7\u8c03\u6574\u8fde\u63a5\u987a\u5e8f\uff0c\u5c06\u641c\u7d22\u7a7a\u95f4\u8c03\u6574\u5728\u4e00\u4e2a\u53ef\u63a5\u53d7\u7684\u8303\u56f4\u5185\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7b2c5\u6b65\uff1a\u4f7f\u7528Redis\u6216Memcached\u4f5c\u4e3a\u7f13\u5b58<\/h4>\n\n\n\n<p>\u4ece\u53ef\u9760\u6027\u6765\u8bf4\uff0cRedis\u652f\u6301\u6301\u4e45\u5316\uff0c\u53ef\u4ee5\u8ba9\u6211\u4eec\u7684\u6570\u636e\u4fdd\u5b58\u5728\u786c\u76d8\u4e0a\uff0c\u4e0d\u8fc7\u8fd9\u6837\u4e00\u6765\u6027\u80fd\u6d88\u8017\u4e5f\u4f1a\u6bd4\u8f83\u5927\u3002\u800cMemcached\u4ec5\u4ec5\u662f\u5185\u5b58\u5b58\u50a8\uff0c\u4e0d\u652f\u6301\u6301\u4e45\u5316\u3002<\/p>\n\n\n\n<p>\u4ece\u652f\u6301\u7684\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0cRedis\u6bd4Memcached\u8981\u591a\uff0c\u5b83\u4e0d\u4ec5\u652f\u6301key-value\u7c7b\u578b\u7684\u6570\u636e\uff0c\u8fd8\u652f\u6301List\uff0cSet\uff0cHash\u7b49\u6570\u636e\u7ed3\u6784\u3002\u5f53\u6211\u4eec\u6709\u6301\u4e45\u5316\u9700\u6c42\u6216\u8005\u662f\u66f4\u9ad8\u7ea7\u7684\u6570\u636e\u5904\u7406\u9700\u6c42\u7684\u65f6\u5019\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528Redis\u3002\u5982\u679c\u662f\u7b80\u5355\u7684key-value\u5b58\u50a8\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528Memcached\u3002<\/p>\n\n\n\n<p>\u901a\u5e38\u6211\u4eec\u5bf9\u4e8e\u67e5\u8be2\u54cd\u5e94\u8981\u6c42\u9ad8\u7684\u573a\u666f\uff08\u54cd\u5e94\u65f6\u95f4\u77ed\uff0c\u541e\u5410\u91cf\u5927\uff09\uff0c\u53ef\u4ee5\u8003\u8651\u5185\u5b58\u6570\u636e\u5e93\uff0c\u6bd5\u7adf\u672f\u4e1a\u6709\u4e13\u653b\u3002\u4f20\u7edf\u7684RDBMS\u90fd\u662f\u5c06\u6570\u636e\u5b58\u50a8\u5728\u786c\u76d8\u4e0a\uff0c\u800c\u5185\u5b58\u6570\u636e\u5e93\u5219\u5b58\u653e\u5728\u5185\u5b58\u4e2d\uff0c\u67e5\u8be2\u8d77\u6765\u8981\u5feb\u5f97\u591a\u3002\u4e0d\u8fc7\u4f7f\u7528\u4e0d\u540c\u7684\u5de5\u5177\uff0c\u4e5f\u589e\u52a0\u4e86\u5f00\u53d1\u4eba\u5458\u7684\u4f7f\u7528\u6210\u672c\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7b2c6\u6b65\uff1a\u5e93\u7ea7\u4f18\u5316<\/h4>\n\n\n\n<p>\u5e93\u7ea7\u4f18\u5316\u662f\u7ad9\u5728\u6570\u636e\u5e93\u7684\u7ef4\u5ea6\u4e0a\u8fdb\u884c\u7684\u4f18\u5316\u7b56\u7565\uff0c\u6bd4\u5982\u63a7\u5236\u4e00\u4e2a\u5e93\u4e2d\u7684\u6570\u636e\u8868\u6570\u91cf\u3002\u53e6\u5916\uff0c\u5355\u4e00\u7684\u6570\u636e\u5e93\u603b\u4f1a\u9047\u5230\u5404\u79cd\u9650\u5236\uff0c\u4e0d\u5982\u53d6\u957f\u8865\u77ed\uff0c\u5229\u7528\"\u5916\u63f4\"\u7684\u65b9\u5f0f\u3002\u901a\u8fc7\u4e3b\u4ece\u67b6\u6784\u4f18\u5316\u6211\u4eec\u7684\u8bfb\u5199\u7b56\u7565\uff0c\u901a\u8fc7\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u5782\u76f4\u6216\u8005\u6c34\u5e73\u5207\u5206\uff0c\u7a81\u7834\u5355\u4e00\u6570\u636e\u5e93\u6216\u6570\u636e\u8868\u7684\u8bbf\u95ee\u9650\u5236\uff0c\u63d0\u5347\u67e5\u8be2\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">1\u3001\u8bfb\u5199\u5206\u79bb<\/h5>\n\n\n\n<p>\u5982\u679c\u8bfb\u548c\u5199\u7684\u4e1a\u52a1\u91cf\u90fd\u5f88\u5927\uff0c\u5e76\u4e14\u5b83\u4eec\u90fd\u5728\u540c\u4e00\u4e2a\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e2d\u8fdb\u884c\u64cd\u4f5c\uff0c\u90a3\u4e48\u6570\u636e\u5e93\u7684\u6027\u80fd\u5c31\u4f1a\u51fa\u73b0\u74f6\u9888\uff0c\u8fd9\u65f6\u4e3a\u4e86\u63d0\u5347\u7cfb\u7edf\u7684\u6027\u80fd\uff0c\u4f18\u5316\u7528\u6237\u4f53\u9a8c\uff0c\u6211\u4eec\u53ef\u4ee5\u91c7\u7528\u8bfb\u5199\u5206\u79bb\u7684\u65b9\u5f0f\u964d\u4f4e\u4e3b\u6570\u636e\u5e93\u7684\u8d1f\u8f7d\uff0c\u6bd4\u5982\u7528\u4e3b\u6570\u636e\u5e93\uff08master\uff09\u5b8c\u6210\u5199\u64cd\u4f5c\uff0c\u7528\u4ece\u6570\u636e\u5e93\uff08slave\uff09\u5b8c\u6210\u8bfb\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"469\" width=\"680\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/c4997390dc5d4ae99882293f6cebb467.png\" alt=\"\"><\/p>\n\n\n\n<h5 class=\"wp-block-heading\">2\u3001\u6570\u636e\u5206\u7247<\/h5>\n\n\n\n<p>\u5bf9\u6570\u636e\u5e93\u5206\u5e93\u5206\u8868\u3002\u5f53\u6570\u636e\u91cf\u7ea7\u8fbe\u5230\u5e72\u4e07\u7ea7\u4ee5\u4e0a\u65f6\uff0c\u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u628a\u4e00\u4e2a\u6570\u636e\u5e93\u5207\u6210\u591a\u4efd\uff0c\u653e\u5230\u4e0d\u540c\u7684\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\uff0c\u51cf\u5c11\u5bf9\u5355\u4e00\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684\u8bbf\u95ee\u538b\u529b\u3002\u5982\u679c\u4f60\u4f7f\u7528\u7684\u662fMySQL\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528MySQL\u81ea\u5e26\u7684\u5206\u533a\u8868\u529f\u80fd\uff0c\u5f53\u7136\u4f60\u4e5f\u53ef\u4ee5\u8003\u8651\u81ea\u5df2\u505a\u5782\u76f4\u62c6\u5206\uff08\u5206\u5e93\uff09\u3001\u6c34\u5e73\u62c6\u5206\uff08\u5206\u8868\uff09\u3001\u5782\u76f4+\u6c34\u5e73\u62c6\u5206\uff08\u5206\u5e93\u5206\u8868\uff09\u3002&nbsp;<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"441\" width=\"681\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/008b8400c6504986a54272785d9840a6.png\" alt=\"\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">&nbsp;2.\u4f18\u5316MySQL\u670d\u52a1\u5668<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 \u4f18\u5316\u670d\u52a1\u5668\u786c\u4ef6<\/h3>\n\n\n\n<p>\u5185\u5b58\u3001ssd\u9ad8\u901f\u78c1\u76d8\u3001\u5408\u7406\u7684io\u3001\u591a\u5904\u7406\u5668<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 mysql\u7684\u53c2\u6570<\/h3>\n\n\n\n<p>MySQL\u670d\u52a1\u7684\u914d\u7f6e\u53c2\u6570\u90fd\u5728my.cnf\u6216\u8005my.ini\u6587\u4ef6\u7684[mysqld]\u7ec4\u4e2d\u3002\u914d\u7f6e\u5b8c\u53c2\u6570\u4ee5\u540e\uff0c\u9700\u8981\u91cd\u65b0\u542f\u52a8MySQL\u670d\u52a1\u624d\u4f1a\u751f\u6548\u3002\u4e0b\u9762\u5bf9\u51e0\u4e2a\u5bf9\u6027\u80fd\u5f71\u54cd\u6bd4\u8f83\u5927\u7684\u53c2\u6570\u8fdb\u884c\u8be6\u7ec6\u4ecb\u7ecd\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>innodb_buffer_pool_size\uff1a\u8fd9\u4e2a\u53c2\u6570\u662fMysql\u6570\u636e\u5e93\u6700\u91cd\u8981\u7684\u53c2\u6570\u4e4b\u4e00\uff0c\u8868\u793alnnoDB\u7c7b\u578b\u7684\u8868\u548c\u7d22\u5f15\u7684\u6700\u5927\u7f13\u5b58\u3002\u5b83\u4e0d\u4ec5\u4ec5\u7f13\u5b58\u7d22\u5f15\u6570\u636e\uff0c\u8fd8\u4f1a\u7f13\u5b58\u8868\u7684\u6570\u636e\u3002\u8fd9\u4e2a\u503c\u8d8a\u5927\uff0c\u67e5\u8be2\u7684\u901f\u5ea6\u5c31\u4f1a\u8d8a\u5feb\u3002\u4f46\u662f\u8fd9\u4e2a\u503c\u592a\u5927\u4f1a\u5f71\u54cd\u64cd\u4f5c\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/li>\n\n\n\n<li>key_buffer_size\uff1a\u8868\u793a\u7d22\u5f15\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u3002\u7d22\u5f15\u7f13\u51b2\u533a\u662f\u6240\u6709\u7684\u7ebf\u7a0b\u5171\u4eab\u3002\u589e\u52a0\u7d22\u5f15\u7f13\u51b2\u533a\u53ef\u4ee5\u5f97\u5230\u66f4\u597d\u5904\u7406\u7684\u7d22\u5f15\uff08\u5bf9\u6240\u6709\u8bfb\u548c\u591a\u91cd\u5199\uff09\u3002\u5f53\u7136\uff0c\u8fd9\u4e2a\u503c\u4e0d\u662f\u8d8a\u5927\u8d8a\u597d\uff0c\u5b83\u7684\u5927\u5c0f\u53d6\u51b3\u4e8e\u5185\u5b58\u7684\u5927\u5c0f\u3002\u5982\u679c\u8fd9\u4e2a\u503c\u592a\u5927\uff0c\u5c31\u4f1a\u5bfc\u81f4\u64cd\u4f5c\u7cfb\u7edf\u9891\u7e41\u6362\u9875\uff0c\u4e5f\u4f1a\u964d\u4f4e\u7cfb\u7edf\u6027\u80fd\u3002\u5bf9\u4e8e\u5185\u5b58\u57284GB\u5de6\u53f3\u7684\u670d\u52a1\u5668\u8be5\u53c2\u6570\u53ef\u8bbe\u7f6e\u4e3a256M\u6216384M\u3002<\/li>\n\n\n\n<li>table_cache\uff1a\u8868\u793a\u540c\u65f6\u6253\u5f00\u7684\u8868\u7684\u4e2a\u6570\u3002\u8fd9\u4e2a\u503c\u8d8a\u5927\uff0c\u80fd\u591f\u540c\u65f6\u6253\u5f00\u7684\u8868\u7684\u4e2a\u6570\u8d8a\u591a\u3002\u7269\u7406\u5185\u5b58\u8d8a\u5927\uff0c\u8bbe\u7f6e\u5c31\u8d8a\u5927\u3002\u9ed8\u8ba4\u4e3a2402\uff0c\u8c03\u5230512-1024\u6700\u4f73\u3002\u8fd9\u4e2a\u503c\u4e0d\u662f\u8d8a\u5927\u8d8a\u597d\uff0c\u56e0\u4e3a\u540c\u65f6\u6253\u5f00\u7684\u592a\u591a\u4f1a\u5f71\u54cd\u64cd\u4f5c\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/li>\n\n\n\n<li>query_cache_size\uff1a\u8868\u793a\u67e5\u8be2\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u3002\u53ef\u4ee5\u901a\u8fc7\u5728MySQL\u63a7\u5236\u53f0\u89c2\u5bdf\uff0c\u5982\u679cQcache_lowmem_prunes\u7684\u503c\u975e\u5e38\u5927\uff0c\u5219\u8868\u660e\u7ecf\u5e38\u51fa\u73b0\u7f13\u51b2\u4e0d\u591f\u7684\u60c5\u51b5\uff0c\u5c31\u8981\u589e\u52a0Query_cache_size\u7684\u503c\uff1b\u5982\u679cQcache_hits\u7684\u503c\u975e\u5e38\u5927\uff0c\u5219\u8868\u660e\u67e5\u8be2\u7f13\u51b2\u4f7f\u7528\u975e\u5e38\u9891\u7e41\uff0c\u5982\u679c\u8be5\u503c\u8f83\u5c0f\u53cd\u800c\u4f1a\u5f71\u54cd\u6548\u7387\uff0c\u90a3\u4e48\u53ef\u4ee5\u8003\u8651\u4e0d\u7528\u67e5\u8be2\u7f13\u5b58\uff1bQcache_free_blocks\uff0c\u5982\u679c\u8be5\u503c\u975e\u5e38\u5927\uff0c\u5219\u8868\u660e\u7f13\u51b2\u533a\u4e2d\u788e\u7247\u5f88\u591a\u3002<strong>MySQL8.0\u4e4b\u540e\u5931\u6548\u3002\u8be5\u53c2\u6570\u9700\u8981\u548cquery_cache_type\u914d\u5408\u4f7f\u7528\u3002<\/strong><\/li>\n\n\n\n<li>query_cache_type\u7684\u503c\u662fo\u65f6\uff0c\u6240\u6709\u7684\u67e5\u8be2\u90fd\u4e0d\u4f7f\u7528\u67e5\u8be2\u7f13\u5b58\u533a\u3002\u4f46\u662fquery_cache_type=o\u5e76\u4e0d\u4f1a\u5bfc\u81f4MySQL\u91ca\u653equery_cache_size\u6240\u914d\u7f6e\u7684\u7f13\u5b58\u533a\u5185\u5b58\u3002<br>1.\u5f53query_cache_type=1\u65f6\uff0c\u6240\u6709\u7684\u67e5\u8be2\u90fd\u5c06\u4f7f\u7528\u67e5\u8be2\u7f13\u5b58\u533a\uff0c\u9664\u975e\u5728\u67e5\u8be2\u8bed\u53e5\u4e2d\u6307\u5b9aSQL_No_CACHE\uff0c\u5982SELECT SQL_NO_CACHE*FROM tbl_name\u3002<br>2.\u5f53query_cache_type=2\u65f6\uff0c\u53ea\u6709\u5728\u67e5\u8be2\u8bed\u53e5\u4e2d\u4f7f\u7528SQL_CACHE\u5173\u952e\u5b57\uff0c\u67e5\u8be2\u624d\u4f1a\u4f7f\u7528\u67e5\u8be2\u7f13\u5b58\u533a\u3002\u4f7f\u7528\u67e5\u8be2\u7f13\u5b58\u533a\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u7684\u901f\u5ea6\uff0c\u8fd9\u79cd\u65b9\u5f0f\u53ea\u9002\u7528\u4e8e\u4fee\u6539\u64cd\u4f5c\u5c11\u4e14\u7ecf\u5e38\u6267\u884c\u76f8\u540c\u7684\u67e5\u8be2\u64cd\u4f5c\u7684\u60c5\u51b5\u3002<\/li>\n\n\n\n<li>sort_buffer_size\uff1a\u8868\u793a\u6bcf\u4e2a\u9700\u8981\u8fdb\u884c\u6392\u5e8f\u7684\u7ebf\u7a0b\u5206\u914d\u7684\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u3002\u589e\u52a0\u8fd9\u4e2a\u53c2\u6570\u7684\u503c\u53ef\u4ee5\u63d0\u9ad8ORDER BY\u6216GROUPBY\u64cd\u4f5c\u7684\u901f\u5ea6\u3002\u9ed8\u8ba4\u6570\u503c\u662f2097144\u5b57\u8282\uff08\u7ea62MB\uff09\u3002\u5bf9\u4e8e\u5185\u5b58\u57284GB\u5de6\u53f3\u7684\u670d\u52a1\u5668\u63a8\u8350\u8bbe\u7f6e\u4e3a6-8M\uff0c\u5982\u679c\u6709100\u4e2a\u8fde\u63a5\uff0c\u90a3\u4e48\u5b9e\u9645\u5206\u914d\u7684\u603b\u5171\u6392\u5e8f\u7f13\u51b2\u533a\u5927\u5c0f\u4e3a100\u00d76=600MB\u3002<\/li>\n\n\n\n<li>join_buffer_size=8M\uff1a\u8868\u793a\u8054\u5408\u67e5\u8be2\u64cd\u4f5c\u6240\u80fd\u4f7f\u7528\u7684\u7f13\u51b2\u533a\u5927\u5c0f\uff0c\u548csort_buffer_size\u4e00\u6837\uff0c\u8be5\u53c2\u6570\u5bf9\u5e94\u7684\u5206\u914d\u5185\u5b58\u4e5f\u662f\u6bcf\u4e2a\u8fde\u63a5\u72ec\u4eab\u3002<\/li>\n\n\n\n<li>read_buffer_size\uff1a\u8868\u793a\u6bcf\u4e2a\u7ebf\u7a0b\u8fde\u7eed\u626b\u63cf\u65f6\u4e3a\u626b\u63cf\u7684\u6bcf\u4e2a\u8868\u5206\u914d\u7684\u7f13\u51b2\u533a\u7684\u5927\u5c0f\uff08\u5b57\u8282\uff09\u3002\u5f53\u7ebf\u7a0b\u4ece\u8868\u4e2d\u8fde\u7eed\u8bfb\u53d6\u8bb0\u5f55\u65f6\u9700\u8981\u7528\u5230\u8fd9\u4e2a\u7f13\u51b2\u533a\u3002SETSESSIONread_buffer_size=n\u53ef\u4ee5\u4e34\u65f6\u8bbe\u7f6e\u8be5\u53c2\u6570\u7684\u503c\u3002\u9ed8\u8ba4\u4e3a64K\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u4e3a4M\u3002<\/li>\n\n\n\n<li>innodb_flush_log_at_trx_commit\uff1a\u8868\u793a\u4f55\u65f6\u5c06\u7f13\u51b2\u533a\u7684\u6570\u636e\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\uff0c\u5e76\u4e14\u5c06\u65e5\u5fd7\u6587\u4ef6\u5199\u5165\u78c1\u76d8\u4e2d\u3002\u8be5\u53c2\u6570\u5bf9\u4e8einnoDB\u5f15\u64ce\u975e\u5e38\u91cd\u8981\u3002\u8be5\u53c2\u6570\u67093\u4e2a\u503c\uff0c\u5206\u522b\u4e3a0\u30011\u548c2\u3002\u8be5\u53c2\u6570\u7684\u9ed8\u8ba4\u503c\u4e3a1\u3002<br>1.\u503c\u4e3a\u65e5\u65f6\uff0c\u8868\u793a\u6bcf\u79d21\u6b21\u7684\u9891\u7387\u5c06\u6570\u636e\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\u5e76\u5c06\u65e5\u5fd7\u6587\u4ef6\u5199\u5165\u78c1\u76d8\u3002\u6bcf\u4e2a\u4e8b\u52a1\u7684commit\u5e76\u4e0d\u4f1a\u89e6\u53d1\u524d\u9762\u7684\u4efb\u4f55\u64cd\u4f5c\u3002\u8be5\u6a21\u5f0f\u901f\u5ea6\u6700\u5feb\uff0c\u4f46\u4e0d\u592a\u5b89\u5168\uff0cmysqld\u8fdb\u7a0b\u7684\u5d29\u6e83\u4f1a\u5bfc\u81f4\u4e0a\u4e00\u79d2\u949f\u6240\u6709\u4e8b\u52a1\u6570\u636e\u7684\u4e22\u5931\u3002<br>2.\u503c\u4e3a1\u65f6\uff0c\u8868\u793a\u6bcf\u6b21\u63d0\u4ea4\u4e8b\u52a1\u65f6\u5c06\u6570\u636e\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\u5e76\u5c06\u65e5\u5fd7\u6587\u4ef6\u5199\u5165\u78c1\u76d8\u8fdb\u884c\u540c\u6b65\u3002\u8be5\u6a21\u5f0f\u662f\u6700\u5b89\u5168\u7684\uff0c\u4f46\u4e5f\u662f\u6700\u6162\u7684\u4e00\u79cd\u65b9\u5f0f\u3002\u56e0\u4e3a\u6bcf\u6b21\u4e8b\u52a1\u63d0\u4ea4\u6216\u4e8b\u52a1\u5916\u7684\u6307\u4ee4\u90fd\u9700\u8981\u628a\u65e5\u5fd7\u5199\u5165\uff08flush\uff09\u786c\u76d8\u3002<br>3.\u503c\u4e3a2\u65f6\uff0c\u8868\u793a\u6bcf\u6b21\u63d0\u4ea4\u4e8b\u52a1\u65f6\u5c06\u6570\u636e\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\uff0c\u6bcf\u96941\u79d2\u5c06\u65e5\u5fd7\u6587\u4ef6\u5199\u5165\u78c1\u76d8\u3002\u8be5\u6a21\u5f0f\u901f\u5ea6\u8f83\u5feb\u4e5f\u6bd40\u5b89\u5168\uff0c\u53ea\u6709\u5728\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\u6216\u8005\u7cfb\u7edf\u65ad\u7535\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0a\u4e00\u79d2\u949f\u6240\u6709\u4e8b\u52a1\u6570\u636e\u624d\u53ef\u80fd\u4e22\u5931\u3002<\/li>\n<\/ul>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"419\" width=\"683\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/70789ae043c74ec681efc5348bd456af.png\" alt=\"\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00a0innodb_log_buffer_size\uff1a\u8fd9\u662fInnoDB\u5b58\u50a8\u5f15l\u64ce\u7684\u4e8b\u52a1\u65e5\u5fd7\u6240\u4f7f\u7528\u7684\u7f13\u51b2\u533a\u3002\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\uff0c\u4e5f\u662f\u5148\u5c06\u4fe1\u606f\u5199\u5165InnodbLogBuffer\u4e2d\uff0c\u5f53\u6ee1\u8db3innodb_flush_log_trx_commit\u53c2\u6570\u6240\u8bbe\u7f6e\u7684\u76f8\u5e94\u6761\u4ef6\uff08\u6216\u8005\u65e5\u5fd7\u7f13\u51b2\u533a\u5199\u6ee1\uff09\u4e4b\u540e\uff0c\u624d\u4f1a\u5c06\u65e5\u5fd7\u5199\u5230\u6587\u4ef6\uff08\u6216\u8005\u540c\u6b65\u5230\u78c1\u76d8\uff09\u4e2d\u3002<\/li>\n\n\n\n<li>max_connections\uff1a\u8868\u793a\u5141\u8bb8\u8fde\u63a5\u5230MySQL\u6570\u636e\u5e93\u7684\u6700\u5927\u6570\u91cf\uff0c\u9ed8\u8ba4\u503c\u662f151\u3002\u5982\u679c\u72b6\u6001\u53d8\u91cfconnection_errors_max_connections\u4e0d\u4e3a\u96f6\uff0c\u5e76\u4e14\u4e00\u76f4\u589e\u957f\uff0c\u5219\u8bf4\u660e\u4e0d\u65ad\u6709\u8fde\u63a5\u8bf7\u6c42\u56e0\u6570\u636e\u5e93\u8fde\u63a5\u6570\u5df2\u8fbe\u5230\u5141\u8bb8\u6700\u5927\u503c\u800c\u5931\u8d25\uff0c\u8fd9\u662f\u53ef\u4ee5\u8003\u8651\u589e\u5927max_connections\u7684\u503c\u3002\u5728Linux\u5e73\u53f0\u4e0b\uff0c\u6027\u80fd\u597d\u7684\u670d\u52a1\u5668\uff0c\u652f\u6301500-1000\u4e2a\u8fde\u63a5\u4e0d\u662f\u96be\u4e8b\uff0c\u9700\u8981\u6839\u636e\u670d\u52a1\u5668\u6027\u80fd\u8fdb\u884c\u8bc4\u4f30\u8bbe\u5b9a\u3002\u8fd9\u4e2a\u8fde\u63a5\u6570\u4e0d\u662f\u8d8a\u5927\u8d8a\u597d\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u8fde\u63a5\u4f1a\u6d6a\u8d39\u5185\u5b58\u7684\u8d44\u6e90\u3002\u8fc7\u591a\u7684\u8fde\u63a5\u53ef\u80fd\u4f1a\u5bfc\u81f4MySQL\u670d\u52a1\u5668\u50f5\u6b7b\u3002<\/li>\n\n\n\n<li>back_log\uff1a\u7528\u4e8e\u63a7\u5236MySQL\u76d1\u542cTCP\u7aef\u53e3\u65f6\u8bbe\u7f6e\u7684\u79ef\u538b\u8bf7\u6c42\u6808\u5927\u5c0f\u3002\u5982\u679cMySql\u7684\u8fde\u63a5\u6570\u8fbe\u5230max_connections\u65f6\uff0c\u65b0\u6765\u7684\u8bf7\u6c42\u5c06\u4f1a\u88ab\u5b58\u5728\u5806\u6808\u4e2d\uff0c\u4ee5\u7b49\u5f85\u67d0\u4e00\u8fde\u63a5\u91ca\u653e\u8d44\u6e90\uff0c\u8be5\u5806\u6808\u7684\u6570\u91cf\u5373back_log\uff0c\u5982\u679c\u7b49\u5f85\u8fde\u63a5\u7684\u6570\u91cf\u8d85\u8fc7back_log\uff0c\u5c06\u4e0d\u88ab\u6388\u4e88\u8fde\u63a5\u8d44\u6e90\uff0c\u5c06\u4f1a\u62a5\u9519\u30025.6.6\u7248\u672c\u4e4b\u524d\u9ed8\u8ba4\u503c\u4e3a50\uff0c\u4e4b\u540e\u7684\u7248\u672c\u9ed8\u8ba4\u4e3a50+<\/li>\n\n\n\n<li>thread_cache_size\uff1a\u7ebf\u7a0b\u6c60\u7f13\u5b58\u7ebf\u7a0b\u6570\u91cf\u7684\u5927\u5c0f\uff0c\u5f53\u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5\u540e\u5c06\u5f53\u524d\u7ebf\u7a0b\u7f13\u5b58\u8d77\u6765\uff0c\u5f53\u5728\u63a5\u5230\u65b0\u7684\u8fde\u63a5\u8bf7\u6c42\u65f6\u5feb\u901f\u54cd\u5e94\u65e0\u9700\u521b\u5efa\u65b0\u7684\u7ebf\u7a0b\u3002\u8fd9\u5c24\u5176\u5bf9\u90a3\u4e9b\u4f7f\u7528\u77ed\u8fde\u63a5\u7684\u5e94\u7528\u7a0b\u5e8f\u6765\u8bf4\u53ef\u4ee5\u6781\u5927\u7684\u63d0\u9ad8\u521b\u5efa\u8fde\u63a5\u7684\u6548\u7387\u3002\u90a3\u4e48\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\u53ef\u4ee5\u589e\u5927\u8be5\u53c2\u6570\u7684\u503c\u3002\u9ed8\u8ba4\u4e3a60\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u4e3a120<\/li>\n\n\n\n<li><code>\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u51e0\u4e2aMySQL\u72b6\u6001\u503c\u6765\u9002\u5f53\u8c03\u6574\u7ebf\u7a0b\u6c60\u7684\u5927\u5c0f\uff1a mysql> show global status like \"Thread%\"; +---------------------------+-------+ | Variable_name \u00a0 \u00a0 \u00a0 \u00a0 \u00a0| Value | +---------------------------+-------+ | Threads_cached \u00a0 \u00a0 \u00a0 \u00a0 | 2 \u00a0 \u00a0 | | Threads_connected \u00a0 \u00a0 \u00a0| 1 \u00a0 \u00a0 | | Threads_created \u00a0 \u00a0 \u00a0 | 3 \u00a0 \u00a0 | | Threads_running \u00a0 \u00a0 \u00a0 | 2 \u00a0 \u00a0 | +---------------------------+-------+ 4 rows in set (0.01 sec)<\/code><img loading=\"lazy\" decoding=\"async\" height=\"15\" width=\"15\" src=\"blob:https:\/\/eve2333.top\/e8af4ecf-e4be-4bda-88cc-9cefe957abdb\"> \u5f53 Threads_cached \u8d8a\u6765\u8d8a\u5c11\uff0c\u4f46 Threads_connected \u59cb\u7ec8\u4e0d\u964d\uff0c\u4e14 Threads_created \u6301\u7eed\u589e\u52a0\uff0c\u53ef\u9002\u5f53\u589e\u52a0 thread_cache_size \u7684\u5927\u5c0f\u3002 \u2022 wait_timeout\uff1a\u6307\u5b9a\u4e00\u4e2a\u8bf7\u6c42\u7684\u6700\u5927\u8fde\u63a5\u65f6\u95f4\uff0c\u5bf9\u4e8e4GB\u5de6\u53f3\u5185\u5b58\u7684\u670d\u52a1\u5668\u53ef\u4ee5\u8bbe\u7f6e\u4e3a5-10\u3002<br>\u2022 interactive_timeout\uff1a\u8868\u793a\u670d\u52a1\u5668\u5728\u5173\u95ed\u8fde\u63a5\u524d\u7b49\u5f85\u884c\u52a8\u7684\u79d2\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4e3e\u4f8b\uff1a<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7535\u5546\u5e73\u53f0\uff0c\u7c7b\u4f3c\u4eac\u4e1c\u6216\u5929\u732b\u8fd9\u6837\u7684\u5e73\u53f0\u3002\u5546\u5bb6\u8d2d\u4e70\u670d\u52a1\uff0c\u5165\u4f4f\u5e73\u53f0\uff0c\u5f00\u901a\u4e4b\u540e\uff0c\u5546\u5bb6\u53ef\u4ee5\u5728\u7cfb\u7edf\u4e2d\u4e0a\u67b6\u5404\u79cd\u5546\u54c1\uff0c\u5ba2\u6237\u901a\u8fc7\u624b\u673a App\u3001\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u7b49\u6e20\u9053\u8d2d\u4e70\u5546\u54c1\uff0c\u5546\u5bb6\u63a5\u5230\u8ba2\u5355\u4ee5\u540e\u5b89\u6392\u5feb\u9012\u9001\u8d27\u3002<\/p>\n\n\n\n<p>\u521a\u521a\u4e0a\u7ebf\u7684\u65f6\u5019\uff0c\u7cfb\u7edf\u8fd0\u884c\u72b6\u6001\u826f\u597d\u3002\u4f46\u662f\uff0c\u968f\u7740\u5165\u4f4f\u7684\u5546\u5bb6\u4e0d\u65ad\u589e\u591a\uff0c\u4f7f\u7528\u7cfb\u7edf\u7684\u7528\u6237\u91cf\u8d8a\u6765\u8d8a\u591a\uff0c\u6bcf\u5929\u7684\u8ba2\u5355\u6570\u636e\u8fbe\u5230\u4e86 5 \u4e07\u6761\u4ee5\u4e0a\u3002\u8fd9\u4e2a\u65f6\u5019\uff0c\u7cfb\u7edf\u5f00\u59cb\u51fa\u73b0\u95ee\u9898\uff0cCPU \u4f7f\u7528\u7387\u4e0d\u65ad\u98d9\u5347\u3002\u7ec8\u4e8e\uff0c\u53cc\u5341\u4e00\u6216\u8005 618 \u6d3b\u52a8\u9ad8\u5cf0\u7684\u65f6\u5019\uff0cCPU \u4f7f\u7528\u7387\u8fbe\u5230 99%\uff0c\u8fd9\u5b9e\u9645\u4e0a\u5c31\u610f\u5473\u7740\uff0c\u7cfb\u7edf\u7684\u8ba1\u7b97\u8d44\u6e90\u5df2\u7ecf\u8017\u5c3d\uff0c\u518d\u4e5f\u65e0\u6cd5\u5904\u7406\u4efb\u4f55\u65b0\u7684\u8ba2\u5355\u4e86\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u7cfb\u7edf\u5df2\u7ecf\u5d29\u6e83\u4e86\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u65f6\u5019\uff0c\u6211\u4eec\u60f3\u5230\u4e86\u5bf9\u7cfb\u7edf\u53c2\u6570\u8fdb\u884c\u8c03\u6574\uff0c\u56e0\u4e3a\u53c2\u6570\u7684\u503c\u51b3\u5b9a\u4e86\u8d44\u6e90\u914d\u7f6e\u7684\u65b9\u5f0f\u548c\u6295\u653e\u7684\u7a0b\u5ea6\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4e00\u5171\u8c03\u6574 3 \u4e2a\u7cfb\u7edf\u53c2\u6570\uff0c\u5206\u522b\u662f<\/p>\n\n\n\n<p>- InnoDB_flush_log_at_trx_commit<br>- InnoDB_buffer_pool_size<br>- InnoDB_buffer_pool_instances<\/p>\n\n\n\n<p>\u4e0b\u9762\u6211\u4eec\u5c31\u8bf4\u4e00\u8bf4\u8c03\u6574\u8fd9\u4e09\u4e2a\u53c2\u6570\u7684\u539f\u56e0\u662f\u4ec0\u4e48\u3002<\/p>\n\n\n\n<p>\uff081\uff09\u8c03\u6574\u7cfb\u7edf\u53c2\u6570 InnoDB_flush_log_at_trx_commit<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u53c2\u6570\u9002\u7528\u4e8e InnoDB \u5b58\u50a8\u5f15\u64ce\uff0c\u7535\u5546\u5e73\u53f0\u7cfb\u7edf\u4e2d\u7684\u8868\u7528\u7684\u5b58\u50a8\u5f15\u64ce\u90fd\u662f InnoDB\u3002\u9ed8\u8ba4\u7684\u503c\u662f 1\uff0c\u610f\u601d\u662f\u6bcf\u6b21\u63d0\u4ea4\u4e8b\u52a1\u7684\u65f6\u5019\uff0c\u90fd\u628a\u6570\u636e\u5199\u5165\u65e5\u5fd7\uff0c\u5e76\u628a\u65e5\u5fd7\u5199\u5165\u78c1\u76d8\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u6570\u636e\u5b89\u5168\u6027\u6700\u4f73\uff0c\u4e0d\u8db3\u4e4b\u5904\u5728\u4e8e\u6bcf\u6b21\u63d0\u4ea4\u4e8b\u52a1\uff0c\u90fd\u8981\u8fdb\u884c\u78c1\u76d8\u5199\u5165\u7684\u64cd\u4f5c\u3002\u5728\u5927\u5e76\u53d1\u7684\u573a\u666f\u4e0b\uff0c\u8fc7\u4e8e\u9891\u7e41\u7684\u78c1\u76d8\u8bfb\u5199\u4f1a\u5bfc\u81f4 CPU \u8d44\u6e90\u6d6a\u8d39\uff0c\u7cfb\u7edf\u6548\u7387\u53d8\u4f4e\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u53c2\u6570\u7684\u503c\u8fd8\u6709 2 \u4e2a\u53ef\u80fd\u7684\u9009\u9879\uff0c\u5206\u522b\u662f 0 \u548c 2\u3002\u6211\u4eec\u628a\u8fd9\u4e2a\u53c2\u6570\u7684\u503c\u6539\u6210\u4e86 2\u3002\u8fd9\u6837\u5c31\u4e0d\u7528\u6bcf\u6b21\u63d0\u4ea4\u4e8b\u52a1\u7684\u65f6\u5019\u90fd\u542f\u52a8\u78c1\u76d8\u8bfb\u5199\u4e86\uff0c\u5728\u5927\u5e76\u53d1\u7684\u573a\u666f\u4e0b\uff0c\u53ef\u4ee5\u6539\u5584\u7cfb\u7edf\u6548\u7387\uff0c\u964d\u4f4e CPU \u4f7f\u7528\u7387\u3002\u5373\u4fbf\u51fa\u73b0\u6545\u969c\uff0c\u635f\u5931\u7684\u6570\u636e\u4e5f\u6bd4\u8f83\u5c0f\u3002<\/p>\n\n\n\n<p>\uff082\uff09\u8c03\u6574\u7cfb\u7edf\u53c2\u6570 InnoDB_buffer_pool_size<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u53c2\u6570\u7684\u610f\u601d\u662f\uff0cInnoDB \u5b58\u50a8\u5f15\u64ce\u4f7f\u7528\u7f13\u5b58\u6765\u5b58\u50a8\u7d22\u5f15\u548c\u6570\u636e\u3002\u8fd9\u4e2a\u503c\u8d8a\u5927\uff0c\u53ef\u4ee5\u52a0\u8f7d\u5230\u7f13\u5b58\u533a\u7684\u7d22\u5f15\u548c\u6570\u636e\u91cf\u5c31\u8d8a\u591a\uff0c\u9700\u8981\u7684\u78c1\u76d8\u8bfb\u5199\u5c31\u8d8a\u5c11\u3002<\/p>\n\n\n\n<p>\u56e0\u4e3a\u6211\u4eec\u7684 MySQL \u670d\u52a1\u5668\u662f\u6570\u636e\u5e93\u4e13\u5c5e\u670d\u52a1\u5668\uff0c\u53ea\u7528\u6765\u8fd0\u884c MySQL \u6570\u636e\u5e93\u670d\u52a1\uff0c\u6ca1\u6709\u5176\u4ed6\u5e94\u7528\u4e86\uff0c\u800c\u6211\u4eec\u7684\u8ba1\u7b97\u673a\u662f 64 \u4f4d\u673a\u5668\uff0c\u5185\u5b58\u4e5f\u6709 128G\u3002\u4e8e\u662f\u6211\u4eec\u628a\u8fd9\u4e2a\u53c2\u6570\u7684\u503c\u8c03\u6574\u4e3a 64G\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u78c1\u76d8\u8bfb\u5199\u6b21\u6570\u53ef\u4ee5\u5927\u5e45\u964d\u4f4e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5145\u5206\u5229\u7528\u5185\u5b58\uff0c\u91ca\u653e\u51fa\u4e00\u4e9b CPU \u7684\u8d44\u6e90\u3002<\/p>\n\n\n\n<p>\uff083\uff09\u8c03\u6574\u7cfb\u7edf\u53c2\u6570 InnoDB_buffer_pool_instances<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u53c2\u6570\u53ef\u4ee5\u5c06 InnoDB \u7684\u7f13\u5b58\u533a\u5206\u6210\u51e0\u4e2a\u90e8\u5206\uff0c\u8fd9\u6837\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u5e76\u884c\u5904\u7406\u80fd\u529b\uff0c\u56e0\u4e3a\u53ef\u4ee5\u5141\u8bb8\u591a\u4e2a\u8fdb\u7a0b\u540c\u65f6\u5904\u7406\u4e0d\u540c\u90e8\u5206\u7684\u7f13\u5b58\u533a\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u628aInnoDB_buffer_pool_instances\u7684\u503c\u4fee\u6539\u4e3a64\uff0c\u610f\u601d\u5c31\u662f\u628aInnoDB\u7684\u7f13\u5b58\u533a\u5206\u621064\u4e2a\u5206\u533a\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u540c\u65f6\u6709\u591a\u4e2a\u8fdb\u7a0b\u8fdb\u884c\u6570\u636e\u64cd\u4f5c\uff0cCPU\u7684\u6548\u7387\u5c31\u9ad8\u591aT\u3002\u4fee\u6539\u597d\u4e86\u7cfb\u7edf\u53c2\u6570\u7684\u503c\uff0c\u8981\u91cd\u542fMySQL\u6570\u636e\u5e93\u670d\u52a1\u5668\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u603b\u7ed3\u4e00\u4e0b\u5c31\u662f\u9047\u5230CPU\u8d44\u6e90\u4e0d\u8db3\u7684\u95ee\u9898\uff0c\u53ef\u4ee5\u4ece\u4e0b\u97622\u4e2a\u601d\u8def\u53bb\u89e3\u51b3\u3002<br>\u00b7\u758f\u901a\u62e5\u5835\u8def\u6bb5\uff0c\u6d88\u9664\u74f6\u9888\uff0c\u8ba9\u7b49\u5f85\u7684\u65f6\u95f4\u66f4\u77ed\uff1b<br>\u00b7\u5f00\u62d3\u65b0\u7684\u901a\u9053\uff0c\u589e\u52a0\u5e76\u884c\u5904\u7406\u80fd\u529b\u3002<\/p>\n<\/blockquote>\n\n\n\n<p><a href=\"https:\/\/www.bilibili.com\/video\/BV1iq4y1u7vj?t=2.3&amp;p=160\" target=\"_blank\"  rel=\"nofollow\" >160-\u6570\u636e\u5e93\u7ed3\u6784\u4f18\u5316\u3001\u5927\u8868\u4f18\u5316\u3001\u5176\u5b833\u4e2a\u7b56\u7565_\u54d4\u54e9\u54d4\u54e9_bilibili<\/a> \u200b<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u200b &nbsp;\u7b2c12\u7ae0_\u6570\u636e\u5e93\u5176\u5b83\u8c03\u4f18\u7b56\u7565 &nbsp;&nbsp;\u6211\u4eec\u9700\u8981\u8c03\u4f18\u7684\u5bf9\u8c61\u662f\u6574\u4e2a\u6570\u636e\u5e93\u7ba1\u7406\uff0c\u5b83\u4e0d\u4ec5\u5305\u62ecSQL\u67e5\u8be2\uff0c\u8fd8 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[2],"tags":[16],"class_list":["post-915","post","type-post","status-publish","format-standard","hentry","category-2","tag-sql"],"_links":{"self":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/915","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=915"}],"version-history":[{"count":1,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/915\/revisions"}],"predecessor-version":[{"id":916,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/915\/revisions\/916"}],"wp:attachment":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}