{"id":289,"date":"2024-06-20T18:27:54","date_gmt":"2024-06-20T10:27:54","guid":{"rendered":"http:\/\/zhaoyanqi.cn\/?p=289"},"modified":"2024-06-20T18:32:34","modified_gmt":"2024-06-20T10:32:34","slug":"mysql%e5%ad%98%e5%82%a8%e5%bc%95%e6%93%8e%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/zhaoyanqi.cn\/?p=289","title":{"rendered":"mysql\u5b58\u50a8\u5f15\u64ce\u8be6\u89e3"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"aXfF0\">\u4e00 MySQL\u7ec4\u7ec7\u67b6\u6784<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/06\/image-48.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"598\" data-original=\"https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/06\/image-48.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-290\"  sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u6a830c25\">MySQL\u6570\u636e\u5e93\u7cfb\u7edf\u91c7\u7528\u6a21\u5757\u5316\u8bbe\u8ba1\uff0c\u6bcf\u4e2a\u6a21\u5757\u5404\u53f8\u5176\u804c\uff0c\u4fdd\u8bc1\u4e86\u7cfb\u7edf\u7684\u9ad8\u6548\u8fd0\u884c\u548c\u53ef\u6269\u5c55\u6027\u3002\u901a\u8fc7\u4e86\u89e3MySQL\u7684\u7ec4\u7ec7\u67b6\u6784\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u5176\u5de5\u4f5c\u539f\u7406\uff0c\u5e76\u80fd\u591f\u8fdb\u884c\u66f4\u6709\u6548\u7684\u4f18\u5316\u548c\u8c03\u8bd5\u3002\u7ed3\u5408\u4e0a\u56fe\u8fdb\u884c\u8be6\u7ec6\u6574\u7406\u5982\u4e0b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"lNtHU\">1. \u8fde\u63a5\u5c42<\/h3>\n\n\n\n<p id=\"ubcb4b03a\">\u8fde\u63a5\u5c42\u8d1f\u8d23\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\uff0c\u5305\u62ec\u8ba4\u8bc1\u548c\u6388\u6743\u7b49\u64cd\u4f5c\u3002\u4e3b\u8981\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8fde\u63a5\u7ba1\u7406<\/strong>\uff1a\u7ba1\u7406\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u548c\u65ad\u5f00\u3002\u901a\u8fc7\u7ba1\u7406\u8fde\u63a5\uff0cMySQL\u53ef\u4ee5\u9ad8\u6548\u5730\u5904\u7406\u5e76\u53d1\u8fde\u63a5\uff0c\u63d0\u4f9b\u826f\u597d\u7684\u6269\u5c55\u6027\u3002<\/li>\n\n\n\n<li><strong>\u8eab\u4efd\u9a8c\u8bc1<\/strong>\uff1a\u9a8c\u8bc1\u7528\u6237\u8eab\u4efd\uff0c\u786e\u4fdd\u53ea\u6709\u5408\u6cd5\u7528\u6237\u53ef\u4ee5\u8bbf\u95ee\u6570\u636e\u5e93\u3002\u8eab\u4efd\u9a8c\u8bc1\u901a\u8fc7\u7528\u6237\u540d\u3001\u5bc6\u7801\u548c\u6743\u9650\u8fdb\u884c\u3002<\/li>\n\n\n\n<li><strong>\u8fde\u63a5\u6c60<\/strong>\uff1a\u590d\u7528\u8fde\u63a5\uff0c\u51cf\u5c11\u521b\u5efa\u548c\u9500\u6bc1\u8fde\u63a5\u7684\u5f00\u9500\uff0c\u63d0\u9ad8\u6027\u80fd\u3002\u8fde\u63a5\u6c60\u7684\u4f7f\u7528\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7cfb\u7edf\u7684\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002<\/li>\n<\/ul>\n\n\n\n<p id=\"u3ed7f09f\">\u652f\u6301\u7684\u8fde\u63a5\u65b9\u5f0f\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u672c\u5730\u8fde\u63a5<\/strong>\uff1a\u4f8b\u5982Unix Socket\u548cNamed Pipe\uff0c\u9002\u7528\u4e8e\u540c\u4e00\u53f0\u670d\u52a1\u5668\u4e0a\u7684\u5ba2\u6237\u7aef\u3002<\/li>\n\n\n\n<li><strong>\u7f51\u7edc\u8fde\u63a5<\/strong>\uff1a\u901a\u8fc7TCP\/IP\u534f\u8bae\u5b9e\u73b0\u8fdc\u7a0b\u8fde\u63a5\uff0c\u9002\u7528\u4e8e\u5206\u5e03\u5f0f\u73af\u5883\u3002<\/li>\n\n\n\n<li><strong>\u591a\u79cdAPI\u63a5\u53e3\u652f\u6301<\/strong>\uff1aMySQL\u652f\u6301\u591a\u79cd\u7f16\u7a0b\u8bed\u8a00\u7684API\u63a5\u53e3\uff0c\u5305\u62ecNative C API, JDBC, ODBC, .NET, PHP, Python, Perl, Ruby, VB\u7b49\uff0c\u65b9\u4fbf\u5f00\u53d1\u8005\u8fdb\u884c\u5e94\u7528\u5f00\u53d1\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"hN6RI\">2. SQL\u5c42<\/h3>\n\n\n\n<p id=\"u69664ed0\">SQL\u5c42\u662fMySQL\u7684\u6838\u5fc3\u90e8\u5206\uff0c\u8d1f\u8d23\u5904\u7406SQL\u8bed\u53e5\uff0c\u5305\u62ec\u67e5\u8be2\u89e3\u6790\u3001\u4f18\u5316\u548c\u6267\u884c\u3002\u4e3b\u8981\u6a21\u5757\u6709\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>SQL\u63a5\u53e3<\/strong>\uff1a\u63a5\u6536\u7528\u6237\u63d0\u4ea4\u7684SQL\u547d\u4ee4\uff0c\u5e76\u8fd4\u56de\u67e5\u8be2\u7ed3\u679c\u3002\u652f\u6301\u591a\u79cdSQL\u64cd\u4f5c\uff0c\u5305\u62ec\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff08DML\uff09\u3001\u6570\u636e\u5b9a\u4e49\u8bed\u8a00\uff08DDL\uff09\u3001\u5b58\u50a8\u8fc7\u7a0b\u3001\u89c6\u56fe\u3001\u89e6\u53d1\u5668\u7b49\u3002<\/li>\n\n\n\n<li><strong>\u89e3\u6790\u5668\uff08Parser\uff09<\/strong>\uff1a\u5c06SQL\u8bed\u53e5\u89e3\u6790\u6210\u6570\u636e\u7ed3\u6784\uff0c\u540c\u65f6\u8fdb\u884c\u8bed\u6cd5\u68c0\u67e5\u548c\u6743\u9650\u9a8c\u8bc1\u3002\u89e3\u6790\u5668\u5c06SQL\u8bed\u53e5\u8f6c\u6362\u6210\u5185\u90e8\u8868\u793a\u5f62\u5f0f\uff0c\u4f9b\u540e\u7eed\u6a21\u5757\u5904\u7406\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u5316\u5668\uff08Optimizer\uff09<\/strong>\uff1a\u6839\u636e\u7edf\u8ba1\u4fe1\u606f\u548c\u8bbf\u95ee\u8def\u5f84\u751f\u6210\u6700\u4f18\u7684\u67e5\u8be2\u8ba1\u5212\uff0c\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002\u4f18\u5316\u5668\u9009\u62e9\u6700\u4f73\u7684\u6267\u884c\u8def\u5f84\uff0c\u51cf\u5c11\u67e5\u8be2\u7684\u8d44\u6e90\u6d88\u8017\u3002<\/li>\n\n\n\n<li><strong>\u7f13\u5b58\u4e0e\u7f13\u51b2\u533a\uff08Caches &amp; Buffers\uff09<\/strong>\uff1a\u7f13\u5b58\u67e5\u8be2\u7ed3\u679c\u548c\u9891\u7e41\u8bbf\u95ee\u7684\u6570\u636e\uff0c\u51cf\u5c11\u78c1\u76d8I\/O\uff0c\u63d0\u9ad8\u6027\u80fd\u3002MySQL\u4f7f\u7528\u591a\u79cd\u7f13\u5b58\u548c\u7f13\u51b2\u6280\u672f\uff0c\u5982\u67e5\u8be2\u7f13\u5b58\u3001InnoDB\u7f13\u51b2\u6c60\u7b49\uff0c\u6765\u63d0\u5347\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"jxEHd\">3. \u5b58\u50a8\u5f15\u64ce\u5c42<\/h3>\n\n\n\n<p id=\"ua7723ca8\">\u5b58\u50a8\u5f15\u64ce\u5c42\u662fMySQL\u6700\u5177\u7279\u8272\u7684\u90e8\u5206\uff0c\u5b83\u5c06\u6570\u636e\u5b58\u50a8\u548c\u7ba1\u7406\u7684\u529f\u80fd\u62bd\u8c61\u6210\u63d2\u4ef6\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u4e0d\u540c\u7684\u5b58\u50a8\u5f15\u64ce\u3002\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b58\u50a8\u5f15\u64ce\u5b9a\u4e49<\/strong>\uff1a\u5b58\u50a8\u5f15\u64ce\u662f\u6570\u636e\u5b58\u50a8\u548c\u63d0\u53d6\u7684\u6838\u5fc3\u7ec4\u4ef6\uff0c\u8d1f\u8d23\u8868\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784\u548c\u6570\u636e\u64cd\u4f5c\u3002MySQL\u5141\u8bb8\u5728\u540c\u4e00\u5b9e\u4f8b\u4e2d\u4f7f\u7528\u4e0d\u540c\u7684\u5b58\u50a8\u5f15\u64ce\uff0c\u63d0\u4f9b\u4e86\u6781\u5927\u7684\u7075\u6d3b\u6027\u3002<\/li>\n\n\n\n<li><strong>\u5e38\u89c1\u5b58\u50a8\u5f15\u64ce<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>MyISAM<\/strong>\uff1a\u4e0d\u652f\u6301\u4e8b\u52a1\u548c\u5916\u952e\uff0c\u9002\u7528\u4e8e\u8bfb\u5bc6\u96c6\u578b\u5e94\u7528\u3002MyISAM\u5b58\u50a8\u5f15\u64ce\u7684\u7279\u70b9\u662f\u7b80\u5355\u9ad8\u6548\uff0c\u9002\u5408\u8fdb\u884c\u5927\u91cf\u8bfb\u64cd\u4f5c\u7684\u5e94\u7528\u573a\u666f\u3002<\/li>\n\n\n\n<li><strong>InnoDB<\/strong>\uff1a\u652f\u6301\u4e8b\u52a1\u3001\u5916\u952e\u548c\u884c\u7ea7\u9501\uff0c\u9002\u7528\u4e8e\u9ad8\u5e76\u53d1\u3001\u4e8b\u52a1\u6027\u5e94\u7528\u3002InnoDB\u662f\u9ed8\u8ba4\u7684\u5b58\u50a8\u5f15\u64ce\uff0c\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u4e8b\u52a1\u5904\u7406\u80fd\u529b\u548c\u6570\u636e\u4e00\u81f4\u6027\u4fdd\u8bc1\u3002<\/li>\n\n\n\n<li><strong>Memory<\/strong>\uff1a\u5c06\u6570\u636e\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\uff0c\u9002\u7528\u4e8e\u4e34\u65f6\u6570\u636e\u6216\u9700\u8981\u9ad8\u901f\u8bbf\u95ee\u7684\u6570\u636e\u3002Memory\u5b58\u50a8\u5f15\u64ce\u9002\u5408\u8fdb\u884c\u5feb\u901f\u67e5\u8be2\u548c\u8ba1\u7b97\u64cd\u4f5c\uff0c\u4f46\u4e0d\u9002\u5408\u5b58\u50a8\u957f\u671f\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>Archive<\/strong>\uff1a\u7528\u4e8e\u5b58\u50a8\u5927\u91cf\u5386\u53f2\u6570\u636e\uff0c\u652f\u6301\u9ad8\u6548\u7684\u63d2\u5165\u548c\u538b\u7f29\u3002Archive\u5b58\u50a8\u5f15\u64ce\u9002\u5408\u4fdd\u5b58\u5f52\u6863\u6570\u636e\uff0c\u63d0\u4f9b\u4e86\u8f83\u9ad8\u7684\u538b\u7f29\u6bd4\u548c\u5b58\u50a8\u6548\u7387\u3002<\/li>\n\n\n\n<li><strong>Federated<\/strong>\uff1a\u5141\u8bb8\u8bbf\u95ee\u8fdc\u7a0bMySQL\u6570\u636e\u5e93\u4e2d\u7684\u8868\u3002Federated\u5b58\u50a8\u5f15\u64ce\u53ef\u4ee5\u5c06\u591a\u4e2aMySQL\u5b9e\u4f8b\u4e2d\u7684\u8868\u8054\u5408\u8d77\u6765\uff0c\u8fdb\u884c\u5206\u5e03\u5f0f\u67e5\u8be2\u3002<\/li>\n\n\n\n<li><strong>\u5176\u4ed6<\/strong>\uff1a\u4f8b\u5982NDB Cluster\u3001Falcon\u7b49\uff0c\u6839\u636e\u9700\u6c42\u9009\u62e9\u3002\u6bcf\u79cd\u5b58\u50a8\u5f15\u64ce\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u70b9\u548c\u5e94\u7528\u573a\u666f\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u8fdb\u884c\u9009\u62e9\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"EfZDc\">4. MySQL\u67e5\u8be2\u8fc7\u7a0b<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/06\/image-49.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"896\" height=\"517\" data-original=\"https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/06\/image-49.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-291\"  sizes=\"auto, (max-width: 896px) 100vw, 896px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u8281cfa1\">MySQL\u7684\u67e5\u8be2\u8fc7\u7a0b\u7531\u591a\u4e2a\u6b65\u9aa4\u7ec4\u6210\uff0c\u901a\u8fc7\u4ee5\u4e0b\u51e0\u4e2a\u9636\u6bb5\u6765\u5904\u7406\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u67e5\u8be2\u8bf7\u6c42\u3002\u53c2\u8003\u4e0a\u56fe\uff0c\u8be6\u7ec6\u63cf\u8ff0MySQL\u67e5\u8be2\u7684\u6bcf\u4e2a\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5ba2\u6237\u7aef\u53d1\u9001\u67e5\u8be2\u8bf7\u6c42<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5ba2\u6237\u7aef\u901a\u8fc7\u901a\u4fe1\u534f\u8bae\uff08\u5982TCP\/IP\uff09\u5411MySQL\u670d\u52a1\u5668\u53d1\u9001SQL\u67e5\u8be2\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li><strong>\u67e5\u8be2\u7f13\u5b58<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>MySQL\u9996\u5148\u68c0\u67e5\u67e5\u8be2\u7f13\u5b58\u3002\u5982\u679c\u67e5\u8be2\u7f13\u5b58\u4e2d\u5b58\u5728\u76f8\u540c\u7684\u67e5\u8be2\u7ed3\u679c\uff0c\u5219\u76f4\u63a5\u8fd4\u56de\u7f13\u5b58\u4e2d\u7684\u7ed3\u679c\uff0c\u8df3\u8fc7\u540e\u7eed\u6b65\u9aa4\u3002\u7f13\u5b58\u7ed3\u679c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u91cd\u590d\u67e5\u8be2\u7684\u6027\u80fd\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li><strong>\u89e3\u6790\u5668\uff08Parser\uff09<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u67e5\u8be2\u7f13\u5b58\u672a\u547d\u4e2d\uff0cMySQL\u5c06SQL\u67e5\u8be2\u4ea4\u7ed9\u89e3\u6790\u5668\u8fdb\u884c\u8bed\u6cd5\u5206\u6790\u548c\u9884\u5904\u7406\u3002<\/li>\n\n\n\n<li><strong>\u8bed\u6cd5\u89e3\u6790<\/strong>\uff1a\u89e3\u6790\u5668\u68c0\u67e5SQL\u8bed\u53e5\u7684\u8bed\u6cd5\u662f\u5426\u6b63\u786e\uff0c\u5e76\u5c06\u5176\u8f6c\u6362\u6210\u89e3\u6790\u6811\uff08Parse Tree\uff09\u3002<\/li>\n\n\n\n<li><strong>\u9884\u5904\u7406\u5668<\/strong>\uff1a\u9884\u5904\u7406\u5668\u8fdb\u4e00\u6b65\u68c0\u67e5\u89e3\u6790\u6811\uff0c\u786e\u4fdd\u5f15\u7528\u7684\u8868\u548c\u5217\u5b58\u5728\uff0c\u9a8c\u8bc1\u7528\u6237\u6743\u9650\u7b49\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li><strong>\u67e5\u8be2\u4f18\u5316\u5668\uff08Query Optimizer\uff09<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u89e3\u6790\u6811\u88ab\u4f20\u9012\u7ed9\u67e5\u8be2\u4f18\u5316\u5668\uff0c\u4f18\u5316\u5668\u751f\u6210\u67e5\u8be2\u6267\u884c\u8ba1\u5212\u3002\u4f18\u5316\u5668\u6839\u636e\u8868\u7684\u7edf\u8ba1\u4fe1\u606f\u3001\u7d22\u5f15\u60c5\u51b5\u548c\u67e5\u8be2\u6761\u4ef6\uff0c\u9009\u62e9\u6700\u4f18\u7684\u6267\u884c\u8def\u5f84\u3002<\/li>\n\n\n\n<li><strong>\u65b0\u89e3\u6790\u6811<\/strong>\uff1a\u4f18\u5316\u540e\u7684\u89e3\u6790\u6811\u7528\u4e8e\u751f\u6210\u6267\u884c\u8ba1\u5212\u3002<\/li>\n\n\n\n<li><strong>\u6267\u884c\u8ba1\u5212<\/strong>\uff1a\u4f18\u5316\u5668\u751f\u6210\u7684\u6267\u884c\u8ba1\u5212\u63cf\u8ff0\u4e86\u67e5\u8be2\u7684\u5177\u4f53\u6267\u884c\u6b65\u9aa4\u548c\u987a\u5e8f\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li><strong>\u67e5\u8be2\u6267\u884c\u5f15\u64ce\uff08Query Execution Engine\uff09<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u67e5\u8be2\u6267\u884c\u5f15\u64ce\u6839\u636e\u6267\u884c\u8ba1\u5212\u6267\u884c\u67e5\u8be2\u3002\u67e5\u8be2\u6267\u884c\u5f15\u64ce\u8d1f\u8d23\u4e0e\u5b58\u50a8\u5f15\u64ce\u4ea4\u4e92\uff0c\u8bfb\u53d6\u548c\u5199\u5165\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u6267\u884c\u5f15\u64ce\u901a\u8fc7API\u63a5\u53e3\u8c03\u7528\u5177\u4f53\u7684\u5b58\u50a8\u5f15\u64ce\uff08\u5982InnoDB\u3001MyISAM\uff09\uff0c\u6267\u884c\u5177\u4f53\u7684\u6570\u636e\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"6\">\n<li><strong>\u8fd4\u56de\u7ed3\u679c<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u67e5\u8be2\u6267\u884c\u5f15\u64ce\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u5c06\u7ed3\u679c\u8fd4\u56de\u7ed9SQL\u63a5\u53e3\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u67e5\u8be2\u7ed3\u679c\u9700\u8981\u7f13\u5b58\uff0c\u5219\u7f13\u5b58\u7ed3\u679c\uff0c\u4ee5\u4fbf\u4e0b\u6b21\u76f8\u540c\u67e5\u8be2\u65f6\u53ef\u4ee5\u76f4\u63a5\u8fd4\u56de\u7f13\u5b58\u7ed3\u679c\uff0c\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u6700\u540e\uff0cSQL\u63a5\u53e3\u5c06\u7ed3\u679c\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff0c\u5b8c\u6210\u6574\u4e2a\u67e5\u8be2\u8fc7\u7a0b\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"xAAQm\">\u4e8c\u3001\u67e5\u770b\u5b58\u50a8\u5f15\u64ce\u4fe1\u606f<\/h2>\n\n\n\n<p id=\"u475793bc\">MySQL\u652f\u6301\u591a\u79cd\u5b58\u50a8\u5f15\u64ce\uff0c\u4e86\u89e3\u548c\u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u652f\u6301\u7684\u5b58\u50a8\u5f15\u64ce\u4fe1\u606f\u662f\u7ba1\u7406\u6570\u636e\u5e93\u7684\u91cd\u8981\u6b65\u9aa4\u3002\u4ee5\u4e0b\u662f\u67e5\u770bMySQL\u5b58\u50a8\u5f15\u64ce\u4fe1\u606f\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"wzO4j\">1. \u67e5\u770bMySQL\u652f\u6301\u7684\u5b58\u50a8\u5f15\u64ce<\/h3>\n\n\n\n<p id=\"ue3c2447b\">\u4f7f\u7528<code>SHOW ENGINES<\/code>\u547d\u4ee4\u53ef\u4ee5\u67e5\u770bMySQL\u5f53\u524d\u652f\u6301\u7684\u6240\u6709\u5b58\u50a8\u5f15\u64ce\u53ca\u5176\u72b6\u6001\uff1a<\/p>\n\n\n\n<pre id=\"lkwWo\" class=\"wp-block-code\"><code>SHOW ENGINES;<\/code><\/pre>\n\n\n\n<p id=\"uc4427bcd\">\u6267\u884c\u4e0a\u8ff0\u547d\u4ee4\u540e\uff0c\u4f1a\u663e\u793a\u4e00\u4e2a\u8868\u683c\uff0c\u5176\u4e2d\u5305\u542b\u4ee5\u4e0b\u5217\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Engine<\/strong>\uff1a\u5b58\u50a8\u5f15\u64ce\u7684\u540d\u79f0\u3002<\/li>\n\n\n\n<li><strong>Support<\/strong>\uff1a\u662f\u5426\u652f\u6301\u8be5\u5b58\u50a8\u5f15\u64ce\uff08YES\u3001NO\u3001DEFAULT\uff09\u3002<\/li>\n\n\n\n<li><strong>Comment<\/strong>\uff1a\u5bf9\u8be5\u5b58\u50a8\u5f15\u64ce\u7684\u7b80\u77ed\u63cf\u8ff0\u3002<\/li>\n\n\n\n<li><strong>Transactions<\/strong>\uff1a\u8be5\u5b58\u50a8\u5f15\u64ce\u662f\u5426\u652f\u6301\u4e8b\u52a1\uff08YES\u3001NO\uff09\u3002<\/li>\n\n\n\n<li><strong>XA<\/strong>\uff1a\u8be5\u5b58\u50a8\u5f15\u64ce\u662f\u5426\u652f\u6301XA\u4e8b\u52a1\uff08\u5206\u5e03\u5f0f\u4e8b\u52a1\uff09\u3002<\/li>\n\n\n\n<li><strong>Savepoints<\/strong>\uff1a\u8be5\u5b58\u50a8\u5f15\u64ce\u662f\u5426\u652f\u6301\u4fdd\u5b58\u70b9\uff08Savepoints\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p id=\"uecefc421\">\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre id=\"AHxJ5\" class=\"wp-block-code\"><code>mysql&gt; SHOW ENGINES;\n+------------+---------+-----------------------------------+--------------+------+------------+\n| Engine     | Support | Comment                           | Transactions | XA   | Savepoints |\n+------------+---------+-----------------------------------+--------------+------+------------+\n| InnoDB     | DEFAULT | Supports transactions, row-level locking, and foreign keys | YES  | YES  | YES        |\n| MyISAM     | YES     | Default engine with support for high-performance indexing | NO   | NO   | NO         |\n| MEMORY     | YES     | Hash based, stored in memory, useful for temporary tables  | NO   | NO   | NO         |\n| CSV        | YES     | CSV storage engine                | NO           | NO   | NO         |\n| ARCHIVE    | YES     | Archive storage engine            | NO           | NO   | NO         |\n| BLACKHOLE  | YES     | \/dev\/null storage engine (anything you write to it disappears) | NO | NO   | NO         |\n| FEDERATED  | NO      | Federated MySQL storage engine    | NO           | NO   | NO         |\n| EXAMPLE    | NO      | Example storage engine            | NO           | NO   | NO         |\n| NDB        | NO      | Clustered, fault-tolerant, memory-based tables | NO    | NO   | NO         |\n| PERFORMANCE_SCHEMA | YES | Performance Schema            | NO           | NO   | NO         |\n+------------+---------+-----------------------------------+--------------+------+------------+<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"QSifG\">2. \u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u4f7f\u7528\u7684\u5b58\u50a8\u5f15\u64ce<\/h3>\n\n\n\n<p id=\"uef107e39\">\u53ef\u4ee5\u4f7f\u7528<code>SHOW TABLE STATUS<\/code>\u547d\u4ee4\u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u4e2d\u5404\u4e2a\u8868\u4f7f\u7528\u7684\u5b58\u50a8\u5f15\u64ce\uff1a<\/p>\n\n\n\n<pre id=\"c4TNE\" class=\"wp-block-code\"><code>SHOW TABLE STATUS;<\/code><\/pre>\n\n\n\n<p id=\"uf5d6cc59\">\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre id=\"RdwZT\" class=\"wp-block-code\"><code>mysql&gt; SHOW TABLE STATUS\\G;\n*************************** 1. row ***************************\n           Name: employee\n         Engine: InnoDB\n        Version: 10\n     Row_format: Compact\n           Rows: 1000\n Avg_row_length: 83\n    Data_length: 81920\nMax_data_length: 0\n   Index_length: 0\n      Data_free: 0\n Auto_increment: 1001\n    Create_time: 2023-06-01 10:00:00\n    Update_time: 2023-06-20 11:00:00\n     Check_time: NULL\n      Collation: utf8_general_ci\n       Checksum: NULL\n Create_options: \n        Comment: \n*************************** 2. row ***************************\n           Name: department\n         Engine: MyISAM\n        Version: 10\n     Row_format: Fixed\n           Rows: 50\n Avg_row_length: 40\n    Data_length: 2048\nMax_data_length: 281474976710655\n   Index_length: 1024\n      Data_free: 0\n Auto_increment: NULL\n    Create_time: 2023-06-01 10:05:00\n    Update_time: 2023-06-20 11:05:00\n     Check_time: NULL\n      Collation: utf8_general_ci\n       Checksum: NULL\n Create_options: \n        Comment: <\/code><\/pre>\n\n\n\n<p id=\"u2fd238f2\">\u901a\u8fc7<code>SHOW TABLE STATUS<\/code>\u547d\u4ee4\uff0c\u53ef\u4ee5\u83b7\u5f97\u6bcf\u4e2a\u8868\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5305\u62ec\u8868\u7684\u5b58\u50a8\u5f15\u64ce\u3001\u884c\u683c\u5f0f\u3001\u884c\u6570\u3001\u6570\u636e\u957f\u5ea6\u3001\u7d22\u5f15\u957f\u5ea6\u3001\u521b\u5efa\u65f6\u95f4\u3001\u66f4\u65b0\u65f6\u95f4\u7b49\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"npOV6\">3. \u4f7f\u7528<code>INFORMATION_SCHEMA<\/code>\u67e5\u770b\u5b58\u50a8\u5f15\u64ce\u4fe1\u606f<\/h3>\n\n\n\n<p id=\"u5ee8a7fe\"><code>INFORMATION_SCHEMA<\/code>\u662fMySQL\u63d0\u4f9b\u7684\u4e00\u4e2a\u6570\u636e\u5e93\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u5173\u4e8e\u6570\u636e\u5e93\u5bf9\u8c61\u7684\u5143\u6570\u636e\u3002\u53ef\u4ee5\u67e5\u8be2<code>INFORMATION_SCHEMA.ENGINES<\/code>\u8868\u6765\u67e5\u770b\u5b58\u50a8\u5f15\u64ce\u7684\u4fe1\u606f\uff1a<\/p>\n\n\n\n<pre id=\"Yq8Jo\" class=\"wp-block-code\"><code>SELECT * FROM INFORMATION_SCHEMA.ENGINES;<\/code><\/pre>\n\n\n\n<p id=\"u3d988bbf\">\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre id=\"mU4Rd\" class=\"wp-block-code\"><code>mysql&gt; SELECT * FROM INFORMATION_SCHEMA.ENGINES;\n+------------+---------+-----------------------------------+--------------+------+------------+\n| ENGINE     | SUPPORT | COMMENT                           | TRANSACTIONS | XA   | SAVEPOINTS |\n+------------+---------+-----------------------------------+--------------+------+------------+\n| InnoDB     | DEFAULT | Supports transactions, row-level locking, and foreign keys | YES  | YES  | YES        |\n| MyISAM     | YES     | Default engine with support for high-performance indexing | NO   | NO   | NO         |\n| MEMORY     | YES     | Hash based, stored in memory, useful for temporary tables  | NO   | NO   | NO         |\n| CSV        | YES     | CSV storage engine                | NO           | NO   | NO         |\n| ARCHIVE    | YES     | Archive storage engine            | NO           | NO   | NO         |\n| BLACKHOLE  | YES     | \/dev\/null storage engine (anything you write to it disappears) | NO | NO   | NO         |\n| FEDERATED  | NO      | Federated MySQL storage engine    | NO           | NO   | NO         |\n| EXAMPLE    | NO      | Example storage engine            | NO           | NO   | NO         |\n| NDB        | NO      | Clustered, fault-tolerant, memory-based tables | NO    | NO   | NO         |\n| PERFORMANCE_SCHEMA | YES | Performance Schema            | NO           | NO   | NO         |\n+------------+---------+-----------------------------------+--------------+------+------------+<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"CV2IS\">4. \u67e5\u770b\u4f7f\u7528\u67d0\u4e2a\u5b58\u50a8\u5f15\u64ce\u7684\u8868<\/h3>\n\n\n\n<p id=\"u24a32cd5\"><strong>\u901a\u8fc7<\/strong><code>INFORMATION_SCHEMA.TABLES<\/code><strong>\u67e5\u8be2<\/strong>\u4f60\u53ef\u4ee5\u901a\u8fc7\u67e5\u8be2<code>INFORMATION_SCHEMA.TABLES<\/code>\u8868\u6765\u67e5\u770b\u4f7f\u7528\u7279\u5b9a\u5b58\u50a8\u5f15\u64ce\u7684\u6240\u6709\u8868\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u67e5\u8be2\uff0c\u663e\u793a\u6240\u6709\u4f7f\u7528InnoDB\u5b58\u50a8\u5f15\u64ce\u7684\u8868\uff1a<\/p>\n\n\n\n<pre id=\"pKKzB\" class=\"wp-block-code\"><code>SELECT TABLE_NAME, TABLE_SCHEMA, ENGINE\nFROM INFORMATION_SCHEMA.TABLES\nWHERE ENGINE = 'InnoDB';<\/code><\/pre>\n\n\n\n<p id=\"ucd4ae83e\">\u5982\u679c\u60f3\u67e5\u770b\u4f7f\u7528\u5176\u4ed6\u5b58\u50a8\u5f15\u64ce\u7684\u8868\uff0c\u4f8b\u5982MyISAM\uff0c\u53ef\u4ee5\u5c06<code>ENGINE<\/code>\u7684\u503c\u66f4\u6539\u4e3a<code>'MyISAM'<\/code>\uff1a<\/p>\n\n\n\n<pre id=\"OcFaV\" class=\"wp-block-code\"><code>SELECT TABLE_NAME, TABLE_SCHEMA, ENGINE\nFROM INFORMATION_SCHEMA.TABLES\nWHERE ENGINE = 'MyISAM';<\/code><\/pre>\n\n\n\n<p id=\"u59c53904\">\u4e0a\u8ff0\u67e5\u8be2\u5c06\u8fd4\u56de\u6240\u6709\u4f7f\u7528\u6307\u5b9a\u5b58\u50a8\u5f15\u64ce\u7684\u8868\u7684\u540d\u79f0\u3001\u6240\u5c5e\u6570\u636e\u5e93\u548c\u5b58\u50a8\u5f15\u64ce\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"VAJjh\">4.1. \u793a\u4f8b<\/h4>\n\n\n\n<p id=\"u810e37be\">\u5047\u8bbe\u6570\u636e\u5e93\u4e2d\u6709\u4ee5\u4e0b\u51e0\u4e2a\u8868\uff1a<\/p>\n\n\n\n<pre id=\"h5XcS\" class=\"wp-block-code\"><code>CREATE DATABASE example_db;\nUSE example_db;\n\nCREATE TABLE innodb_table (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(50)\n) ENGINE=InnoDB;\n\nCREATE TABLE myisam_table (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(50)\n) ENGINE=MyISAM;\n\nCREATE TABLE memory_table (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(50)\n) ENGINE=MEMORY;<\/code><\/pre>\n\n\n\n<p id=\"ua7ac7b48\">\u8981\u67e5\u770b\u6240\u6709\u4f7f\u7528InnoDB\u5b58\u50a8\u5f15\u64ce\u7684\u8868\uff1a<\/p>\n\n\n\n<pre id=\"WKLDs\" class=\"wp-block-code\"><code>SELECT TABLE_NAME, TABLE_SCHEMA, ENGINE\nFROM INFORMATION_SCHEMA.TABLES\nWHERE ENGINE = 'InnoDB';<\/code><\/pre>\n\n\n\n<p id=\"u62638cbc\">\u67e5\u8be2\u7ed3\u679c\uff1a<\/p>\n\n\n\n<pre id=\"OrUTB\" class=\"wp-block-code\"><code>+-------------+--------------+--------+\n| TABLE_NAME  | TABLE_SCHEMA | ENGINE |\n+-------------+--------------+--------+\n| innodb_table| example_db   | InnoDB |\n+-------------+--------------+--------+<\/code><\/pre>\n\n\n\n<p id=\"uf7a222ca\">\u8981\u67e5\u770b\u6240\u6709\u4f7f\u7528MyISAM\u5b58\u50a8\u5f15\u64ce\u7684\u8868\uff1a<\/p>\n\n\n\n<pre id=\"z0ZIp\" class=\"wp-block-code\"><code>SELECT TABLE_NAME, TABLE_SCHEMA, ENGINE\nFROM INFORMATION_SCHEMA.TABLES\nWHERE ENGINE = 'MyISAM';<\/code><\/pre>\n\n\n\n<p id=\"ufbd08a02\">\u67e5\u8be2\u7ed3\u679c\uff1a<\/p>\n\n\n\n<pre id=\"ygodq\" class=\"wp-block-code\"><code>+--------------+--------------+--------+\n| TABLE_NAME   | TABLE_SCHEMA | ENGINE |\n+--------------+--------------+--------+\n| myisam_table | example_db   | MyISAM |\n+--------------+--------------+--------+<\/code><\/pre>\n\n\n\n<p id=\"u90f83228\">\u8981\u67e5\u770b\u6240\u6709\u4f7f\u7528MEMORY\u5b58\u50a8\u5f15\u64ce\u7684\u8868\uff1a<\/p>\n\n\n\n<pre id=\"tknoL\" class=\"wp-block-code\"><code>SELECT TABLE_NAME, TABLE_SCHEMA, ENGINE\nFROM INFORMATION_SCHEMA.TABLES\nWHERE ENGINE = 'MEMORY';<\/code><\/pre>\n\n\n\n<p id=\"uea1df712\">\u67e5\u8be2\u7ed3\u679c\uff1a<\/p>\n\n\n\n<pre id=\"BENil\" class=\"wp-block-code\"><code>+--------------+--------------+--------+\n| TABLE_NAME   | TABLE_SCHEMA | ENGINE |\n+--------------+--------------+--------+\n| memory_table | example_db   | MEMORY |\n+--------------+--------------+--------+<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"RIDhV\">\u4e09\u3001\u4fee\u6539\u5b58\u50a8\u5f15\u64ce<\/h2>\n\n\n\n<p id=\"ub792d97f\">\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u4fee\u6539\u8868\u7684\u5b58\u50a8\u5f15\u64ce\uff0c\u5305\u62ec\u4f7f\u7528<code>ALTER TABLE<\/code>\u8bed\u53e5\u3001\u914d\u7f6e\u6587\u4ef6\u4fee\u6539\u3001\u4e34\u65f6\u4fee\u6539\u4ee5\u53ca\u5728\u521b\u5efa\u8868\u65f6\u6307\u5b9a\u5b58\u50a8\u5f15\u64ce\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u6b65\u9aa4\u548c\u793a\u4f8b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"XW9BF\">1. \u4f7f\u7528 <code>ALTER TABLE<\/code> \u8bed\u53e5\u4fee\u6539\u5b58\u50a8\u5f15\u64ce<\/h3>\n\n\n\n<p id=\"ubbc1aac1\">\u8981\u4fee\u6539\u8868\u7684\u5b58\u50a8\u5f15\u64ce\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre id=\"HTaSS\" class=\"wp-block-code\"><code>ALTER TABLE table_name ENGINE = new_storage_engine;<\/code><\/pre>\n\n\n\n<p id=\"u53eaeb0c\">\u5176\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>table_name<\/code> \u662f\u8981\u4fee\u6539\u7684\u8868\u7684\u540d\u79f0\u3002<\/li>\n\n\n\n<li><code>new_storage_engine<\/code> \u662f\u8981\u66f4\u6539\u4e3a\u7684\u65b0\u5b58\u50a8\u5f15\u64ce\u540d\u79f0\uff08\u4f8b\u5982\uff0cInnoDB\u3001MyISAM\u3001MEMORY\u7b49\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p id=\"u12a14a06\"><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<pre id=\"vAZLL\" class=\"wp-block-code\"><code>ALTER TABLE example_table ENGINE = InnoDB;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ZJBZO\">2. \u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u4fee\u6539\u5b58\u50a8\u5f15\u64ce<\/h3>\n\n\n\n<p id=\"u78d2974f\">\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539MySQL\u7684\u914d\u7f6e\u6587\u4ef6<code>my.cnf<\/code>\uff08\u6216<code>my.ini<\/code>\uff09\u6765\u66f4\u6539\u9ed8\u8ba4\u7684\u5b58\u50a8\u5f15\u64ce\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6253\u5f00MySQL\u914d\u7f6e\u6587\u4ef6\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"UZp2p\" class=\"wp-block-code\"><code>sudo nano \/etc\/mysql\/my.cnf<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6dfb\u52a0\u6216\u4fee\u6539<code>default-storage-engine<\/code>\u53c2\u6570\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"Wz5L6\" class=\"wp-block-code\"><code>&#91;mysqld]\ndefault-storage-engine=InnoDB<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u4fdd\u5b58\u6587\u4ef6\u5e76\u91cd\u542fMySQL\u670d\u52a1\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"ajFYA\" class=\"wp-block-code\"><code>sudo systemctl restart mysql<\/code><\/pre>\n\n\n\n<p id=\"u020ef085\">\u6216\u8005\uff1a<\/p>\n\n\n\n<pre id=\"CDRey\" class=\"wp-block-code\"><code>sudo service mysql restart<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"YWOr3\">3. \u4e34\u65f6\u4fee\u6539\u5b58\u50a8\u5f15\u64ce<\/h3>\n\n\n\n<p id=\"ub54b5e19\">\u53ef\u4ee5\u901a\u8fc7\u5728\u5f53\u524d\u4f1a\u8bdd\u4e2d\u4e34\u65f6\u4fee\u6539\u9ed8\u8ba4\u5b58\u50a8\u5f15\u64ce\uff1a<\/p>\n\n\n\n<pre id=\"XuemH\" class=\"wp-block-code\"><code>SET default_storage_engine = InnoDB;<\/code><\/pre>\n\n\n\n<p id=\"u257cc2ae\">\u6b64\u8bbe\u7f6e\u4ec5\u5bf9\u5f53\u524d\u4f1a\u8bdd\u6709\u6548\uff0c\u5f53\u4f1a\u8bdd\u7ed3\u675f\u540e\uff0c\u9ed8\u8ba4\u5b58\u50a8\u5f15\u64ce\u5c06\u6062\u590d\u4e3a\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684\u8bbe\u7f6e\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"wx2LZ\">4. \u5728\u521b\u5efa\u8868\u65f6\u6307\u5b9a\u5b58\u50a8\u5f15\u64ce<\/h3>\n\n\n\n<p id=\"ud66133df\">\u5728\u521b\u5efa\u8868\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7<code>ENGINE<\/code>\u53c2\u6570\u76f4\u63a5\u6307\u5b9a\u8868\u7684\u5b58\u50a8\u5f15\u64ce\uff1a<\/p>\n\n\n\n<pre id=\"e6tWF\" class=\"wp-block-code\"><code>CREATE TABLE table_name (\n    id INT PRIMARY KEY,\n    name VARCHAR(50)\n) ENGINE=InnoDB;<\/code><\/pre>\n\n\n\n<p id=\"uba04e90b\"><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<pre id=\"zx6jw\" class=\"wp-block-code\"><code>CREATE TABLE example_table (\n    id INT PRIMARY KEY,\n    name VARCHAR(50)\n) ENGINE=InnoDB;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"kWKhy\">5. \u6279\u91cf\u4fee\u6539\u5b58\u50a8\u5f15\u64ce<\/h3>\n\n\n\n<p id=\"u4110cb6b\">\u5982\u679c\u9700\u8981\u6279\u91cf\u4fee\u6539\u67d0\u4e2a\u6570\u636e\u5e93\u4e2d\u6240\u6709\u8868\u7684\u5b58\u50a8\u5f15\u64ce\uff0c\u53ef\u4ee5\u4f7f\u7528\u811a\u672c\u6216\u5b58\u50a8\u8fc7\u7a0b\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u811a\u672c\uff0c\u5c06\u67d0\u4e2a\u6570\u636e\u5e93\u4e2d\u6240\u6709\u8868\u7684\u5b58\u50a8\u5f15\u64ce\u4fee\u6539\u4e3aInnoDB\uff1a<\/p>\n\n\n\n<pre id=\"sfZNW\" class=\"wp-block-code\"><code>SET @database_name = 'your_database_name';\nSET @new_engine = 'InnoDB';\n\nSELECT CONCAT('ALTER TABLE ', table_name, ' ENGINE=', @new_engine, ';') AS alter_sql\nFROM information_schema.tables\nWHERE table_schema = @database_name\nAND engine &lt;&gt; @new_engine;<\/code><\/pre>\n\n\n\n<p id=\"uc209a3a6\">\u751f\u6210\u7684\u8f93\u51fa\u5c06\u662f\u591a\u6761<code>ALTER TABLE<\/code>\u8bed\u53e5\uff0c\u53ef\u4ee5\u5c06\u5176\u590d\u5236\u5e76\u6267\u884c\u4ee5\u6279\u91cf\u4fee\u6539\u5b58\u50a8\u5f15\u64ce\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"o8lAQ\">6. \u6ce8\u610f\u4e8b\u9879<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6570\u636e\u5907\u4efd<\/strong>\uff1a\u5728\u4fee\u6539\u5b58\u50a8\u5f15\u64ce\u4e4b\u524d\uff0c\u52a1\u5fc5\u5907\u4efd\u6570\u636e\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u7684\u6570\u636e\u4e22\u5931\u6216\u635f\u574f\u3002<\/li>\n\n\n\n<li><strong>\u517c\u5bb9\u6027<\/strong>\uff1a\u4e0d\u540c\u7684\u5b58\u50a8\u5f15\u64ce\u652f\u6301\u7684\u529f\u80fd\u548c\u7279\u6027\u6709\u6240\u4e0d\u540c\uff08\u5982\u4e8b\u52a1\u3001\u5916\u952e\u7b49\uff09\u3002\u5728\u4fee\u6539\u5b58\u50a8\u5f15\u64ce\u4e4b\u524d\uff0c\u786e\u4fdd\u76ee\u6807\u5b58\u50a8\u5f15\u64ce\u652f\u6301\u5f53\u524d\u8868\u7684\u6240\u6709\u529f\u80fd\u3002<\/li>\n\n\n\n<li><strong>\u6027\u80fd\u5f71\u54cd<\/strong>\uff1a\u4e0d\u540c\u5b58\u50a8\u5f15\u64ce\u7684\u6027\u80fd\u7279\u6027\u4e0d\u540c\uff0c\u4fee\u6539\u5b58\u50a8\u5f15\u64ce\u53ef\u80fd\u4f1a\u5f71\u54cd\u8868\u7684\u8bfb\u5199\u6027\u80fd\u3002<\/li>\n<\/ul>\n\n\n\n<p id=\"ud28302a4\">\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\u548c\u6ce8\u610f\u4e8b\u9879\uff0c\u53ef\u4ee5\u5b89\u5168\u5730\u4fee\u6539MySQL\u8868\u7684\u5b58\u50a8\u5f15\u64ce\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"lMrJc\">\u56db\u3001\u4e0d\u540c\u5b58\u50a8\u5f15\u64ce\u521b\u5efa\u6570\u636e<\/h2>\n\n\n\n<p id=\"uc9998fbd\"><a href=\"https:\/\/www.yuque.com\/u39220520\/rtqkia\/cz1vhxsrzrqawq72\"><a href=\"https:\/\/zhaoyanqi.cn\/?p=158\">\u4e0d\u540c\u5b58\u50a8\u5f15\u64ce\uff08InnoDB\u3001MyISAM\u3001Memory\u3001Blackhole\uff09\u5982\u4f55\u521b\u5efa\u6570\u636e\uff0c\u4ee5\u53ca\u5404\u81ea\u7279\u70b9<\/a><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"r8Edg\">\u4e94\u3001\u4e0d\u540c\u5b58\u50a8\u5f15\u64ce\u5bf9\u6bd4<\/h2>\n\n\n\n<p id=\"u050d0bf5\"><a href=\"https:\/\/www.yuque.com\/u39220520\/rtqkia\/zrynd7hwq12pmfg5\" target=\"_blank\" rel=\"noreferrer noopener\"><a href=\"https:\/\/zhaoyanqi.cn\/?p=181\">Mysql\u4e0d\u540c\u5b58\u50a8\u5f15\u64ce\uff08InnoDB\u3001MyISAM\u3001Memory\u3001Blackhole\uff09\u7684\u533a\u522b<\/a><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"OaIzV\">\u516d\u3001InnoDB \u903b\u8f91\u67b6\u6784<\/h2>\n\n\n\n<p id=\"u3ea366bb\">InnoDB \u5b58\u50a8\u5f15\u64ce\u662f MySQL \u4e2d\u5e38\u7528\u7684\u4e8b\u52a1\u578b\u5b58\u50a8\u5f15\u64ce\uff0c\u5177\u6709\u9ad8\u53ef\u9760\u6027\u548c\u9ad8\u6027\u80fd\u3002\u5176\u903b\u8f91\u67b6\u6784\u53ef\u4ee5\u901a\u8fc7\u5185\u5b58\u7ed3\u6784\u3001\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\u4ee5\u53ca\u786c\u76d8\u7ed3\u6784\u6765\u8be6\u7ec6\u7406\u89e3\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/06\/image-52.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"701\" height=\"531\" data-original=\"https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/06\/image-52.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-294\"  sizes=\"auto, (max-width: 701px) 100vw, 701px\" \/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"Uet3D\">\u4e00\u3001\u5185\u5b58\u67b6\u6784<\/h3>\n\n\n\n<p id=\"u63a554c9\"><strong>1. Buffer Pool<\/strong><br>Buffer Pool \u662f InnoDB \u7528\u4e8e\u7f13\u5b58\u6570\u636e\u548c\u7d22\u5f15\u7684\u4e3b\u8981\u5185\u5b58\u533a\u57df\u3002\u5b83\u4e3b\u8981\u5305\u542b\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6570\u636e\u9875\u548c\u7d22\u5f15\u9875<\/strong>\uff1aInnoDB \u5c06\u78c1\u76d8\u4e0a\u7684\u6570\u636e\u9875\u548c\u7d22\u5f15\u9875\u7f13\u5b58\u5230 Buffer Pool \u4e2d\uff0c\u4ee5\u63d0\u9ad8\u8bfb\u53d6\u548c\u5199\u5165\u7684\u6027\u80fd\u3002<\/li>\n\n\n\n<li><strong>Adaptive Hash Index (AHI)<\/strong>\uff1a\u81ea\u9002\u5e94\u54c8\u5e0c\u7d22\u5f15\u662f InnoDB \u5728\u5185\u5b58\u4e2d\u52a8\u6001\u521b\u5efa\u7684\uff0c\u7528\u4e8e\u52a0\u901f\u7d22\u5f15\u67e5\u627e\u3002<\/li>\n\n\n\n<li><strong>Change Buffer<\/strong>\uff1a\u7528\u4e8e\u7f13\u5b58\u5bf9\u4e8c\u7ea7\u7d22\u5f15\u7684\u4fee\u6539\u64cd\u4f5c\uff08<strong>\u5199\u64cd\u4f5c<\/strong>\uff09\uff0c\u8fd9\u4e9b\u4fee\u6539\u5c06\u5728\u5408\u9002\u7684\u65f6\u673a\u88ab\u5408\u5e76\u5230\u78c1\u76d8\u4e0a\uff0c\u4ee5\u63d0\u9ad8\u5199\u5165\u6027\u80fd\u3002<\/li>\n<\/ul>\n\n\n\n<p id=\"ufeacd035\"><strong>2. Log Buffer<\/strong><br>Log Buffer \u662f\u4e00\u4e2a\u5185\u5b58\u533a\u57df\uff0c\u7528\u4e8e\u7f13\u5b58\u4e8b\u52a1\u65e5\u5fd7\uff08Redo Log\uff09\u7684\u8bb0\u5f55\u3002\u5728\u4e8b\u52a1\u63d0\u4ea4\u65f6\uff0c\u65e5\u5fd7\u5148\u5199\u5165 Log Buffer\uff0c\u7136\u540e\u5468\u671f\u6027\u5730\u5237\u65b0\u5230\u78c1\u76d8\u4e0a\u7684 Redo Log \u6587\u4ef6\u4e2d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"GOdK4\">\u4e8c\u3001\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58<\/h3>\n\n\n\n<p id=\"ud67ad7ec\">\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\u662f\u6307\u64cd\u4f5c\u7cfb\u7edf\u7528\u4e8e\u7f13\u5b58\u78c1\u76d8 I\/O \u64cd\u4f5c\u7684\u6570\u636e\u533a\u57df\u3002InnoDB \u5229\u7528\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\u6765\u8fdb\u4e00\u6b65\u63d0\u5347 IO \u6027\u80fd\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"eKpgR\"><strong>1. Write \u64cd\u4f5c<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f53 InnoDB \u9700\u8981\u5c06\u6570\u636e\u4ece\u5185\u5b58\u5199\u5165\u78c1\u76d8\u65f6\uff0c\u9996\u5148\u901a\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u7684 write() \u7cfb\u7edf\u8c03\u7528\u5c06\u6570\u636e\u5199\u5165\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\u3002\u8fd9\u4e00\u64cd\u4f5c\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u662f\u5feb\u901f\u7684\uff0c\u56e0\u4e3a\u5b83\u53ea\u662f\u5c06\u6570\u636e\u5199\u5165\u5185\u5b58\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u5199\u5165\u78c1\u76d8\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"B0z9E\"><strong>2. fsync \u64cd\u4f5c<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\u7684\u6570\u636e\u5e76\u4e0d\u4f1a\u7acb\u5373\u5199\u5165\u78c1\u76d8\uff0c\u8fd9\u6837\u505a\u662f\u4e3a\u4e86\u63d0\u9ad8\u5199\u5165\u6027\u80fd\u3002\u7136\u800c\uff0c\u4e3a\u4e86\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u6301\u4e45\u6027\uff0cInnoDB \u9700\u8981\u5b9a\u671f\u5c06\u7f13\u5b58\u4e2d\u7684\u6570\u636e\u540c\u6b65\u5230\u78c1\u76d8\u3002\u8fd9\u4e00\u64cd\u4f5c\u901a\u8fc7 fsync() \u7cfb\u7edf\u8c03\u7528\u5b9e\u73b0\u3002<\/li>\n\n\n\n<li>fsync() \u8c03\u7528\u4f1a\u5c06\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\u4e2d\u7684\u6570\u636e\u5f3a\u5236\u5199\u5165\u78c1\u76d8\uff0c\u786e\u4fdd\u6570\u636e\u5728\u7cfb\u7edf\u5d29\u6e83\u65f6\u4e0d\u4f1a\u4e22\u5931\u3002InnoDB \u5728\u4e8b\u52a1\u63d0\u4ea4\u65f6\u4f1a\u8c03\u7528 fsync() \u4ee5\u4fdd\u8bc1\u4e8b\u52a1\u65e5\u5fd7\uff08Redo Log\uff09\u7684\u6301\u4e45\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"cW0LI\"><strong>3. O_DIRECT \u6a21\u5f0f<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>InnoDB \u53ef\u4ee5\u914d\u7f6e\u4f7f\u7528 O_DIRECT \u6a21\u5f0f\uff0c\u8fd9\u79cd\u6a21\u5f0f\u4e0b\uff0c\u6570\u636e\u5728\u5199\u5165\u78c1\u76d8\u65f6\u4f1a\u7ed5\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\uff0c\u76f4\u63a5\u5199\u5165\u78c1\u76d8\u3002\u8fd9\u53ef\u4ee5\u907f\u514d\u53cc\u91cd\u7f13\u5b58\u5e26\u6765\u7684\u6027\u80fd\u5f00\u9500\uff0c\u63d0\u9ad8 I\/O \u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528 O_DIRECT \u9700\u8981\u5728 MySQL \u914d\u7f6e\u6587\u4ef6\u4e2d\u8bbe\u7f6e innodb_flush_method \u53c2\u6570\u4e3a O_DIRECT\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"YAIXH\">\u4e09\u3001\u786c\u76d8\u67b6\u6784<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"SNmHi\"><strong>1. On-Disk Structures<\/strong><\/h4>\n\n\n\n<p id=\"udac64177\">\u786c\u76d8\u4e0a\u7684\u7ed3\u6784\u662f InnoDB \u5b58\u50a8\u7684\u6838\u5fc3\uff0c\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>System Tablespace (ibdata1)<\/strong>\uff1a\u7cfb\u7edf\u8868\u7a7a\u95f4\uff0c\u7528\u4e8e\u5b58\u50a8 InnoDB \u7684\u6570\u636e\u5b57\u5178\u3001\u53cc\u5199\u7f13\u51b2\uff08Doublewrite Buffer\uff09\u3001\u66f4\u6539\u7f13\u51b2\uff08Change Buffer\uff09\u7b49\u7cfb\u7edf\u4fe1\u606f\u3002<\/li>\n\n\n\n<li><strong>File-Per-Table Tablespaces<\/strong>\uff1a\u5f53\u53c2\u6570 <code>innodb_file_per_table<\/code> \u8bbe\u7f6e\u4e3a ON \u65f6\uff0c\u6bcf\u4e2a\u8868\u7684\u6570\u636e\u548c\u7d22\u5f15\u5b58\u50a8\u5728\u72ec\u7acb\u7684\u8868\u7a7a\u95f4\u6587\u4ef6\u4e2d\uff08.ibd \u6587\u4ef6\uff09\u3002<\/li>\n\n\n\n<li><strong>General Tablespaces<\/strong>\uff1a\u53ef\u4ee5\u8de8\u591a\u4e2a\u8868\u7684\u901a\u7528\u8868\u7a7a\u95f4\u6587\u4ef6\u3002<\/li>\n\n\n\n<li><strong>Undo Tablespaces<\/strong>\uff1a\u7528\u4e8e\u5b58\u50a8\u64a4\u9500\u65e5\u5fd7\uff08Undo Log\uff09\uff0c\u4ee5\u652f\u6301\u4e8b\u52a1\u7684\u56de\u6eda\u548c MVCC\uff08\u591a\u7248\u672c\u5e76\u53d1\u63a7\u5236\uff09\u3002\u7cfb\u7edf\u8868\u7a7a\u95f4\u4e2d\u5305\u542b\u7cfb\u7edf\u64a4\u9500\u8868\u7a7a\u95f4\uff08undo_002\uff09\uff0c\u4e5f\u53ef\u4ee5\u6709\u7528\u6237\u5b9a\u4e49\u7684\u64a4\u9500\u8868\u7a7a\u95f4\uff08\u5982 undo_004\uff09\u3002<\/li>\n\n\n\n<li><strong>Temporary Tablespaces<\/strong>\uff1a\u4e34\u65f6\u8868\u7a7a\u95f4\uff0c\u7528\u4e8e\u5b58\u50a8\u4e34\u65f6\u8868\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"HheVC\"><strong>2. Redo Log<\/strong><\/h4>\n\n\n\n<p id=\"u95447ac5\">Redo Log \u662f InnoDB \u7528\u4e8e\u6062\u590d\u4e8b\u52a1\u7684\u65e5\u5fd7\u6587\u4ef6\u3002\u4e3b\u8981\u5305\u62ec\u4e24\u4e2a\u6587\u4ef6\uff08ib_logfile1 \u548c ib_logfile2\uff09\uff0c\u8bb0\u5f55\u4e86\u5bf9\u6570\u636e\u5e93\u7684\u6240\u6709\u4fee\u6539\uff0c\u4ee5\u4fbf\u5728\u7cfb\u7edf\u5d29\u6e83\u540e\u8fdb\u884c\u6062\u590d\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"oLdBd\">\u7ed3\u5408\u67e5\u8be2\u8fc7\u7a0b\u7406\u89e3<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5ba2\u6237\u7aef\u8bf7\u6c42<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5ba2\u6237\u7aef\u53d1\u9001 SQL \u67e5\u8be2\u8bf7\u6c42\uff0c\u901a\u8fc7\u8fde\u63a5\u5c42\u8fdb\u5165 MySQL \u670d\u52a1\u5668\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li><strong>\u67e5\u8be2\u7f13\u5b58<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u67e5\u8be2\u9996\u5148\u68c0\u67e5\u67e5\u8be2\u7f13\u5b58\uff0c\u5982\u679c\u547d\u4e2d\u7f13\u5b58\uff0c\u5219\u76f4\u63a5\u8fd4\u56de\u7ed3\u679c\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li><strong>\u89e3\u6790\u5668<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u67e5\u8be2\u89e3\u6790\u5668\u5bf9 SQL \u8bed\u53e5\u8fdb\u884c\u8bed\u6cd5\u89e3\u6790\uff0c\u751f\u6210\u89e3\u6790\u6811\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li><strong>\u9884\u5904\u7406\u5668<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9884\u5904\u7406\u5668\u5bf9\u89e3\u6790\u6811\u8fdb\u884c\u8fdb\u4e00\u6b65\u5904\u7406\uff0c\u751f\u6210\u65b0\u89e3\u6790\u6811\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li><strong>\u67e5\u8be2\u4f18\u5316\u5668<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f18\u5316\u5668\u751f\u6210\u6267\u884c\u8ba1\u5212\uff0c\u5e76\u9009\u62e9\u6700\u4f18\u7684\u6267\u884c\u8def\u5f84\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"6\">\n<li><strong>\u6267\u884c\u5668<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6267\u884c\u5668\u6309\u7167\u6267\u884c\u8ba1\u5212\u4ece\u5b58\u50a8\u5f15\u64ce\u8bfb\u53d6\u6570\u636e\uff0c\u901a\u8fc7 API \u8c03\u7528\u8bbf\u95ee\u5b58\u50a8\u5f15\u64ce\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"7\">\n<li><strong>\u5b58\u50a8\u5f15\u64ce<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b58\u50a8\u5f15\u64ce\u5728 Buffer Pool \u4e2d\u67e5\u627e\u6570\u636e\u9875\uff0c\u5982\u679c\u6ca1\u6709\u627e\u5230\u5219\u4ece\u78c1\u76d8\u4e2d\u8bfb\u53d6\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u9875\u5728\u5185\u5b58\u4e2d\u8fdb\u884c\u5904\u7406\uff08\u5305\u62ec\u53ef\u80fd\u7684\u65e5\u5fd7\u8bb0\u5f55\uff09\uff0c\u6700\u540e\u8fd4\u56de\u7ed3\u679c\u7ed9\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"mxd2M\">\u4e03\u3001InnoDB \u5b58\u50a8\u5f15\u64ce\u7684\u6267\u884c\u8fc7\u7a0b<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/06\/image-51.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"951\" height=\"539\" data-original=\"https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/06\/image-51.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-293\"  sizes=\"auto, (max-width: 951px) 100vw, 951px\" \/><\/div><\/figure>\n\n\n\n<p id=\"ub7ff8755\">\u901a\u8fc7\u56fe\u793a\u53ef\u4ee5\u770b\u51fa InnoDB \u5b58\u50a8\u5f15\u64ce\u5728\u6267\u884c\u5199\u64cd\u4f5c\u65f6\u7684\u8be6\u7ec6\u8fc7\u7a0b\u3002\u4e0b\u9762\u5c06\u9010\u6b65\u89e3\u91ca\u8fd9\u4e9b\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n<p id=\"ua4fd0985\"><\/p>\n\n\n\n<p id=\"u28f8d281\"><strong>\u6267\u884c\u5668<\/strong>\u63a5\u6536\u5230 SQL \u8bed\u53e5\u540e\uff0c\u9996\u5148\u8fdb\u884c\u89e3\u6790\u548c\u4f18\u5316\uff0c\u751f\u6210\u6267\u884c\u8ba1\u5212\u3002\u6267\u884c\u8ba1\u5212\u51b3\u5b9a\u8981\u4fee\u6539\u7684\u6570\u636e\u9875\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"AYxFb\">1. <strong>\u52a0\u8f7d\u6570\u636e\u5230\u7f13\u51b2\u6c60<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f53\u6709\u4e00\u6761 SQL \u8bed\u53e5\u9700\u8981\u4fee\u6539\u6570\u636e\u65f6\uff0c\u9996\u5148\u6267\u884c\u5668\u5c06\u9700\u8981\u4fee\u6539\u7684\u6570\u636e\u9875\u4ece\u78c1\u76d8\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u7684\u7f13\u51b2\u6c60\uff08Buffer Pool\uff09\u4e2d\u3002\u5982\u679c\u6570\u636e\u9875\u5df2\u7ecf\u5728\u7f13\u51b2\u6c60\u4e2d\uff0c\u5219\u8df3\u8fc7\u8fd9\u4e00\u6b65\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ztflo\">2. <strong>\u8bb0\u5f55 Undo \u65e5\u5fd7<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u5bf9\u6570\u636e\u8fdb\u884c\u4efb\u4f55\u4fee\u6539\u4e4b\u524d\uff0c\u4e3a\u4e86\u652f\u6301\u4e8b\u52a1\u7684\u56de\u6eda\uff0c\u9700\u8981\u9996\u5148\u5c06\u6570\u636e\u4fee\u6539\u524d\u7684\u65e7\u503c\u5199\u5165 Undo \u65e5\u5fd7\u6587\u4ef6\u3002Undo \u65e5\u5fd7\u7528\u4e8e\u5728\u4e8b\u52a1\u56de\u6eda\u65f6\u6062\u590d\u6570\u636e\u7684\u65e7\u503c\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"hi3s6\">3. <strong>\u66f4\u65b0\u5185\u5b58\u6570\u636e<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u7f13\u51b2\u6c60\u4e2d\u8fdb\u884c\u6570\u636e\u9875\u7684\u4fee\u6539\u3002\u6b64\u65f6\uff0c\u5185\u5b58\u4e2d\u7684\u6570\u636e\u9875\u5df2\u7ecf\u88ab\u4fee\u6539\uff0c\u4f46\u8fd8\u6ca1\u6709\u88ab\u6301\u4e45\u5316\u5230\u78c1\u76d8\u4e0a\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"bHeSI\">4. <strong>\u5199\u5165 Redo \u65e5\u5fd7<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5c06\u6570\u636e\u4fee\u6539\u64cd\u4f5c\u8bb0\u5f55\u5230 Redo \u65e5\u5fd7\u7f13\u51b2\u533a\u4e2d\u3002Redo \u65e5\u5fd7\u8bb0\u5f55\u4e86\u4e8b\u52a1\u7684\u6bcf\u4e00\u4e2a\u4fee\u6539\u64cd\u4f5c\uff0c\u7528\u4e8e\u5728\u7cfb\u7edf\u5d29\u6e83\u65f6\u8fdb\u884c\u6570\u636e\u6062\u590d\u3002Redo \u65e5\u5fd7\u5305\u542b\u4e86\u4fee\u6539\u64cd\u4f5c\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u4f8b\u5982\u4fee\u6539\u4e86\u54ea\u4e2a\u6570\u636e\u9875\u3001\u5177\u4f53\u7684\u4fee\u6539\u5185\u5bb9\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"z09KO\">5. <strong>\u5237\u65b0 Redo \u65e5\u5fd7\u5230\u78c1\u76d8<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5c06 Redo \u65e5\u5fd7\u7f13\u51b2\u533a\u7684\u5185\u5bb9\u5237\u65b0\u5230\u78c1\u76d8\u4e0a\u7684 Redo \u65e5\u5fd7\u6587\u4ef6\u4e2d\u3002\u786e\u4fdd\u5373\u4f7f\u5728\u7cfb\u7edf\u5d29\u6e83\u7684\u60c5\u51b5\u4e0b\uff0c\u4e5f\u80fd\u901a\u8fc7 Redo \u65e5\u5fd7\u6062\u590d\u5230\u6700\u65b0\u7684\u72b6\u6001\u3002\u901a\u5e38\u662f\u901a\u8fc7 fsync \u64cd\u4f5c\u5c06\u7f13\u51b2\u533a\u5185\u5bb9\u6301\u4e45\u5316\u5230\u78c1\u76d8\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"eRpD9\">6. <strong>\u51c6\u5907\u63d0\u4ea4\u4e8b\u52a1<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u63d0\u4ea4\u4e8b\u52a1\u4e4b\u524d\uff0c\u9996\u5148\u5c06 Binlog \u65e5\u5fd7\u5199\u5165\u78c1\u76d8\u3002Binlog \u65e5\u5fd7\u8bb0\u5f55\u4e86\u6240\u6709\u7684\u5199\u64cd\u4f5c\uff0c\u7528\u4e8e\u4e3b\u4ece\u590d\u5236\u548c\u6570\u636e\u6062\u590d\u3002\u6b64\u65f6\uff0cBinlog \u65e5\u5fd7\u4e2d\u7684\u5185\u5bb9\u8fd8\u6ca1\u6709\u6807\u8bb0\u4e3a\u5df2\u63d0\u4ea4\u72b6\u6001\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"gIb6K\">7. <strong>\u63d0\u4ea4\u4e8b\u52a1<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u786e\u4fdd Redo \u65e5\u5fd7\u548c Binlog \u65e5\u5fd7\u90fd\u5df2\u6210\u529f\u5199\u5165\u78c1\u76d8\u540e\uff0c\u5728 Binlog \u65e5\u5fd7\u4e2d\u5199\u5165\u4e00\u4e2a commit \u6807\u8bb0\uff0c\u6807\u8bb0\u4e8b\u52a1\u5df2\u7ecf\u63d0\u4ea4\u3002\u5e76\u5c06\u4e8b\u52a1\u6807\u8bb0\u4e3a\u5df2\u63d0\u4ea4\u72b6\u6001\uff0c\u4e8b\u52a1\u6b63\u5f0f\u63d0\u4ea4\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"wgsYH\">8. <strong>\u5237\u65b0\u6570\u636e\u5230\u78c1\u76d8<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e8b\u52a1\u63d0\u4ea4\u540e\uff0cInnoDB \u4f1a\u5f02\u6b65\u5730\u5c06\u7f13\u51b2\u6c60\u4e2d\u5df2\u4fee\u6539\u7684\u6570\u636e\u9875\u5237\u65b0\u5230\u78c1\u76d8\u4e0a\u7684\u6570\u636e\u6587\u4ef6\u4e2d\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u53ef\u80fd\u4f1a\u5728\u7a0d\u540e\u7684\u65f6\u95f4\u8fdb\u884c\uff0c\u4e0d\u4f1a\u963b\u585e\u4e8b\u52a1\u63d0\u4ea4\u3002\u8fd9\u6837\u505a\u7684\u76ee\u7684\u662f\u63d0\u9ad8\u6027\u80fd\uff0c\u901a\u8fc7\u51cf\u5c11\u9891\u7e41\u7684\u78c1\u76d8 I\/O \u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<p id=\"ue8155e4d\">\u5f53\u7136\uff0c\u4ee5\u4e0b\u662f\u5404\u7ec4\u4ef6\u7684\u8be6\u7ec6\u7b80\u4ecb\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"W2LTR\">\u5404\u7ec4\u4ef6\u7b80\u4ecb<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"KbTeN\">8.1. <strong>Buffer Pool\uff08\u7f13\u51b2\u6c60\uff09<\/strong>\uff1a<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u529f\u80fd<\/strong>\uff1aBuffer Pool \u662f InnoDB \u5b58\u50a8\u5f15\u64ce\u4e2d\u7528\u6765\u7f13\u5b58\u78c1\u76d8\u4e0a\u7684\u6570\u636e\u9875\u7684\u5185\u5b58\u533a\u57df\u3002<\/li>\n\n\n\n<li><strong>\u4f5c\u7528<\/strong>\uff1a\u901a\u8fc7\u5c06\u6570\u636e\u9875\u7f13\u5b58\u5728\u5185\u5b58\u4e2d\uff0c\u53ef\u4ee5\u51cf\u5c11\u78c1\u76d8 I\/O \u64cd\u4f5c\uff0c\u63d0\u9ad8\u6570\u636e\u8bbf\u95ee\u901f\u5ea6\u3002Buffer Pool \u8fd8\u7528\u4e8e\u7f13\u5b58\u7d22\u5f15\u9875\uff0c\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002<\/li>\n\n\n\n<li><strong>\u7ec4\u6210<\/strong>\uff1a\u5305\u62ec\u6570\u636e\u9875\u548c\u7d22\u5f15\u9875\uff0c\u4ee5\u53ca\u4e00\u4e9b\u8f85\u52a9\u7684\u6570\u636e\u7ed3\u6784\u5982 Adaptive Hash Index \u7528\u4e8e\u52a0\u901f\u67e5\u8be2\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"HxLvH\">8.2. <strong>Undo Log\uff08\u64a4\u9500\u65e5\u5fd7\uff09<\/strong>\uff1a<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u529f\u80fd<\/strong>\uff1aUndo Log \u8bb0\u5f55\u4e86\u6570\u636e\u88ab\u4fee\u6539\u4e4b\u524d\u7684\u65e7\u503c\u3002<\/li>\n\n\n\n<li><strong>\u4f5c\u7528<\/strong>\uff1aUndo Log \u7528\u4e8e\u652f\u6301\u4e8b\u52a1\u56de\u6eda\u548c\u591a\u7248\u672c\u5e76\u53d1\u63a7\u5236\uff08MVCC\uff09\u3002\u5728\u4e8b\u52a1\u56de\u6eda\u65f6\uff0cInnoDB \u4f1a\u4f7f\u7528 Undo Log \u5c06\u6570\u636e\u6062\u590d\u5230\u4fee\u6539\u4e4b\u524d\u7684\u72b6\u6001\u3002\u540c\u65f6\uff0cUndo Log \u8fd8\u652f\u6301\u5feb\u7167\u8bfb\uff0c\u4f7f\u5f97\u8bfb\u64cd\u4f5c\u53ef\u4ee5\u770b\u5230\u4e8b\u52a1\u5f00\u59cb\u65f6\u7684\u6570\u636e\u72b6\u6001\u3002<\/li>\n\n\n\n<li><strong>\u7ec4\u6210<\/strong>\uff1aUndo \u65e5\u5fd7\u6587\u4ef6\u8bb0\u5f55\u4e86\u6570\u636e\u4fee\u6539\u4e4b\u524d\u7684\u65e7\u503c\uff0c\u53ef\u4ee5\u5728\u4e8b\u52a1\u56de\u6eda\u6216 MVCC \u8bfb\u53d6\u65f6\u4f7f\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"pSzpY\">8.3. <strong>Redo Log\uff08\u91cd\u505a\u65e5\u5fd7\uff09<\/strong>\uff1a<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u529f\u80fd<\/strong>\uff1aRedo Log \u8bb0\u5f55\u4e86\u6240\u6709\u7684\u6570\u636e\u4fee\u6539\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li><strong>\u4f5c\u7528<\/strong>\uff1aRedo Log \u7528\u4e8e\u5728\u7cfb\u7edf\u5d29\u6e83\u540e\u8fdb\u884c\u6570\u636e\u6062\u590d\u3002Redo Log \u786e\u4fdd\u5373\u4f7f\u5728\u7cfb\u7edf\u5d29\u6e83\u540e\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u91cd\u505a\u65e5\u5fd7\u5c06\u6570\u636e\u6062\u590d\u5230\u6700\u65b0\u7684\u72b6\u6001\u3002\u5199\u5165 Redo Log \u540e\uff0c\u4e8b\u52a1\u53ef\u4ee5\u88ab\u8ba4\u4e3a\u5df2\u7ecf\u63d0\u4ea4\u3002<\/li>\n\n\n\n<li><strong>\u7ec4\u6210<\/strong>\uff1aRedo Log \u5305\u62ec Redo Log Buffer\uff08\u5185\u5b58\u4e2d\u7684\u91cd\u505a\u65e5\u5fd7\u7f13\u51b2\u533a\uff09\u548c\u78c1\u76d8\u4e0a\u7684 Redo \u65e5\u5fd7\u6587\u4ef6\uff08\u5982 ib_logfile0, ib_logfile1\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"js24x\">8.4. <strong>Binlog\uff08\u4e8c\u8fdb\u5236\u65e5\u5fd7\uff09<\/strong>\uff1a<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u529f\u80fd<\/strong>\uff1aBinlog \u8bb0\u5f55\u4e86\u6240\u6709\u5bf9\u6570\u636e\u5e93\u7684\u5199\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li><strong>\u4f5c\u7528<\/strong>\uff1aBinlog \u7528\u4e8e\u4e3b\u4ece\u590d\u5236\u548c\u6570\u636e\u6062\u590d\u3002\u901a\u8fc7 Binlog\uff0c\u53ef\u4ee5\u5c06\u4e3b\u5e93\u4e0a\u7684\u6570\u636e\u4fee\u6539\u64cd\u4f5c\u91cd\u653e\u5230\u4ece\u5e93\u4e0a\uff0c\u4ece\u800c\u5b9e\u73b0\u4e3b\u4ece\u6570\u636e\u4e00\u81f4\u3002Binlog \u4e5f\u7528\u4e8e Point-in-Time Recovery\uff08PITR\uff09\uff0c\u5373\u4ece\u5907\u4efd\u6062\u590d\u540e\uff0c\u901a\u8fc7\u91cd\u653e Binlog \u65e5\u5fd7\u5c06\u6570\u636e\u5e93\u6062\u590d\u5230\u7279\u5b9a\u65f6\u95f4\u70b9\u3002<\/li>\n\n\n\n<li><strong>\u7ec4\u6210<\/strong>\uff1aBinlog \u5305\u542b\u6240\u6709\u4e8b\u52a1\u7684\u63d0\u4ea4\u4fe1\u606f\uff0c\u8bb0\u5f55\u4e86\u6570\u636e\u7684\u903b\u8f91\u4fee\u6539\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"TMD7t\">8.5. <strong>\u78c1\u76d8\u6587\u4ef6<\/strong>\uff1a<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u529f\u80fd<\/strong>\uff1a\u5b58\u50a8\u6700\u7ec8\u7684\u6570\u636e\u9875\u3002<\/li>\n\n\n\n<li><strong>\u4f5c\u7528<\/strong>\uff1a\u78c1\u76d8\u6587\u4ef6\u662f\u6301\u4e45\u5316\u5b58\u50a8\u7684\u5730\u65b9\uff0cBuffer Pool \u4e2d\u7684\u6570\u636e\u9875\u5b9a\u671f\u5237\u65b0\u5230\u78c1\u76d8\u6587\u4ef6\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u6301\u4e45\u6027\u3002\u6570\u636e\u6700\u7ec8\u5b58\u50a8\u5728\u78c1\u76d8\u6587\u4ef6\u4e2d\uff0c\u4ee5\u786e\u4fdd\u5728\u7cfb\u7edf\u91cd\u542f\u540e\u6570\u636e\u4f9d\u7136\u5b58\u5728\u3002<\/li>\n\n\n\n<li><strong>\u7ec4\u6210<\/strong>\uff1a\u5305\u62ec InnoDB \u8868\u7a7a\u95f4\u6587\u4ef6\uff08\u5982 .ibd \u6587\u4ef6\uff09\uff0c\u4ee5\u53ca\u7cfb\u7edf\u8868\u7a7a\u95f4\u6587\u4ef6\uff08\u5982 ibdata1\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"zQWzn\">\u516b\u3001InnoDB\u7684\u5237\u76d8\u7b56\u7565<\/h2>\n\n\n\n<p id=\"uca85924f\">InnoDB\u7684\u5237\u76d8\u7b56\u7565\u4e3b\u8981\u662f\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u3001\u6301\u4e45\u6027\uff0c\u5e76\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u3002\u5237\u76d8\u7b56\u7565\u5305\u62ec\u5c06\u5185\u5b58\u4e2d\u7684\u6570\u636e\u9875\u3001Redo Log\u3001Undo Log \u5237\u65b0\u5230\u78c1\u76d8\u7684\u673a\u5236\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"pxjDF\">1. <strong>Buffer Pool \u5237\u65b0\u7b56\u7565<\/strong><\/h3>\n\n\n\n<p id=\"u2ba0529c\">Buffer Pool \u4e2d\u7f13\u5b58\u4e86\u6570\u636e\u9875\u548c\u7d22\u5f15\u9875\uff0cInnoDB \u4f1a\u6839\u636e\u4ee5\u4e0b\u7b56\u7565\u5c06\u8fd9\u4e9b\u9875\u5237\u65b0\u5230\u78c1\u76d8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>LRU\uff08Least Recently Used\uff09\u7b97\u6cd5<\/strong>\uff1aInnoDB \u4f7f\u7528 LRU \u7b97\u6cd5\u7ba1\u7406 Buffer Pool \u4e2d\u7684\u6570\u636e\u9875\u3002\u5f53 Buffer Pool \u7a7a\u95f4\u4e0d\u8db3\u65f6\uff0c\u4f1a\u5c06\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u6570\u636e\u9875\u79fb\u51fa Buffer Pool\uff0c\u5e76\u5c06\u5176\u5237\u65b0\u5230\u78c1\u76d8\u3002<\/li>\n\n\n\n<li><strong>\u810f\u9875\u5237\u76d8<\/strong>\uff1a\u5f53 Buffer Pool \u4e2d\u7684\u9875\u88ab\u4fee\u6539\u540e\uff0c\u8fd9\u4e9b\u9875\u88ab\u6807\u8bb0\u4e3a\u810f\u9875\u3002InnoDB \u4f1a\u6839\u636e\u4e00\u5b9a\u7684\u7b56\u7565\u5c06\u810f\u9875\u5237\u65b0\u5230\u78c1\u76d8\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u6301\u4e45\u6027\u3002<\/li>\n\n\n\n<li><strong>Checkpoints<\/strong>\uff1aInnoDB \u4f7f\u7528\u68c0\u67e5\u70b9\u673a\u5236\u5b9a\u671f\u5c06 Buffer Pool \u4e2d\u7684\u810f\u9875\u5237\u65b0\u5230\u78c1\u76d8\uff0c\u51cf\u5c11\u6062\u590d\u65f6\u95f4\u3002\u68c0\u67e5\u70b9\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\uff1a\u5c0f\u68c0\u67e5\u70b9\u548c\u5927\u68c0\u67e5\u70b9\u3002\u5c0f\u68c0\u67e5\u70b9\u9891\u7e41\u53d1\u751f\uff0c\u5199\u5165\u8f83\u5c11\u7684\u6570\u636e\uff1b\u5927\u68c0\u67e5\u70b9\u8f83\u5c11\u53d1\u751f\uff0c\u5199\u5165\u5927\u91cf\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u540e\u53f0\u7ebf\u7a0b<\/strong>\uff1aInnoDB \u6709\u540e\u53f0\u7ebf\u7a0b\uff08\u5982 Page Cleaner \u7ebf\u7a0b\uff09\u8d1f\u8d23\u5b9a\u671f\u5c06\u810f\u9875\u5237\u65b0\u5230\u78c1\u76d8\uff0c\u8fd9\u4e9b\u7ebf\u7a0b\u4f1a\u5728\u7cfb\u7edf\u8d1f\u8f7d\u8f83\u4f4e\u65f6\u6267\u884c\u5237\u76d8\u64cd\u4f5c\uff0c\u4ee5\u51cf\u5c11\u5bf9\u524d\u53f0\u64cd\u4f5c\u7684\u5f71\u54cd\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"WyfOU\">2. <strong>Redo Log \u5237\u65b0\u7b56\u7565<\/strong><\/h3>\n\n\n\n<p id=\"ue47a6f7c\"><code>innodb_flush_log_at_trx_commit<\/code> \u53c2\u6570\u63a7\u5236 InnoDB \u5982\u4f55\u5904\u7406\u4e8b\u52a1\u63d0\u4ea4\u65f6\u7684\u65e5\u5fd7\u5237\u65b0\u7b56\u7565\uff0c\u5b83\u7684\u503c\u53ef\u4ee5\u662f 0\u30011 \u6216 2\u3002\u4e0b\u9762\u8be6\u7ec6\u8bf4\u660e\u8fd9\u4e09\u4e2a\u9009\u9879\u7684\u884c\u4e3a\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"F7xFB\">2.1. <code>innodb_flush_log_at_trx_commit = 0<\/code><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u884c\u4e3a<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e8b\u52a1\u63d0\u4ea4\u65f6\uff0cInnoDB \u4ec5\u5c06\u65e5\u5fd7\u7f13\u51b2\u533a\u4e2d\u7684\u65e5\u5fd7\u5199\u5165\u5230\u65e5\u5fd7\u6587\u4ef6\uff08ib_logfile*\uff09\u4e2d\uff0c\u4f46\u4e0d\u8c03\u7528 <code>fsync<\/code> \u5c06\u65e5\u5fd7\u6587\u4ef6\u5237\u65b0\u5230\u78c1\u76d8\u3002<\/li>\n\n\n\n<li>\u6bcf\u79d2\u949f\uff0cInnoDB \u4f1a\u5c06\u65e5\u5fd7\u7f13\u51b2\u533a\u4e2d\u7684\u65e5\u5fd7\u5199\u5165\u5230\u65e5\u5fd7\u6587\u4ef6\u4e2d\uff0c\u5e76\u8c03\u7528 <code>fsync<\/code> \u5c06\u65e5\u5fd7\u6587\u4ef6\u5237\u65b0\u5230\u78c1\u76d8\u3002<\/li>\n\n\n\n<li><strong>\u5f71\u54cd<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6027\u80fd<\/strong>\uff1a\u8fd9\u79cd\u914d\u7f6e\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\uff0c\u56e0\u4e3a\u51cf\u5c11\u4e86\u78c1\u76d8 I\/O \u64cd\u4f5c\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u5b89\u5168\u6027<\/strong>\uff1a\u5728 <strong>\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\u65f6\u6216MySQL \u670d\u52a1\u5d29\u6e83<\/strong>\u65f6\uff0c\u53ef\u80fd\u4f1a\u4e22\u5931\u6700\u8fd1\u4e00\u79d2\u5185\u63d0\u4ea4\u7684\u4e8b\u52a1\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u4e8b\u52a1\u7684\u65e5\u5fd7\u53ef\u80fd\u8fd8\u6ca1\u6709\u88ab\u5199\u5165\u78c1\u76d8\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"o1KJl\">2.2. <code>innodb_flush_log_at_trx_commit = 1<\/code><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u884c\u4e3a<\/strong>\uff1a<\/li>\n\n\n\n<li>\u4e8b\u52a1\u63d0\u4ea4\u65f6\uff0cInnoDB \u4f1a\u5c06\u65e5\u5fd7\u7f13\u51b2\u533a\u4e2d\u7684\u65e5\u5fd7\u5199\u5165\u5230\u65e5\u5fd7\u6587\u4ef6\uff0c\u5e76\u8c03\u7528 <code>fsync<\/code> \u5c06\u65e5\u5fd7\u6587\u4ef6\u5237\u65b0\u5230\u78c1\u76d8\u3002<\/li>\n\n\n\n<li><strong>\u5f71\u54cd<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6027\u80fd<\/strong>\uff1a\u6bcf\u6b21\u4e8b\u52a1\u63d0\u4ea4\u90fd\u4f1a\u5bfc\u81f4\u4e00\u6b21\u78c1\u76d8 I\/O \u64cd\u4f5c\uff0c\u6027\u80fd\u76f8\u5bf9\u8f83\u4f4e\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u5b89\u5168\u6027<\/strong>\uff1a\u8fd9\u79cd\u914d\u7f6e\u53ef\u4ee5\u63d0\u4f9b\u6700\u9ad8\u7684\u6570\u636e\u5b89\u5168\u6027\uff0c\u56e0\u4e3a\u6bcf\u6b21\u4e8b\u52a1\u63d0\u4ea4\u540e\u7684\u65e5\u5fd7\u90fd\u4f1a\u7acb\u5373\u5199\u5165\u78c1\u76d8\uff0c\u5373\u4f7f\u7cfb\u7edf\u5d29\u6e83\u4e5f\u4e0d\u4f1a\u4e22\u5931\u5df2\u63d0\u4ea4\u7684\u4e8b\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"su0Tc\">2.3. <code>innodb_flush_log_at_trx_commit = 2<\/code><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u884c\u4e3a<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e8b\u52a1\u63d0\u4ea4\u65f6\uff0cInnoDB \u4f1a\u5c06\u65e5\u5fd7\u7f13\u51b2\u533a\u4e2d\u7684\u65e5\u5fd7\u5199\u5165\u5230\u65e5\u5fd7\u6587\u4ef6\uff0c\u4f46\u4e0d\u8c03\u7528 <code>fsync<\/code> \u5c06\u65e5\u5fd7\u6587\u4ef6\u5237\u65b0\u5230\u78c1\u76d8\u3002<\/li>\n\n\n\n<li>\u6bcf\u79d2\u949f\uff0cInnoDB \u4f1a\u8c03\u7528 <code>fsync<\/code> \u5c06\u65e5\u5fd7\u6587\u4ef6\u5237\u65b0\u5230\u78c1\u76d8\u3002<\/li>\n\n\n\n<li><strong>\u5f71\u54cd<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6027\u80fd<\/strong>\uff1a\u8fd9\u79cd\u914d\u7f6e\u6027\u80fd\u8f83\u597d\uff0c\u56e0\u4e3a\u51cf\u5c11\u4e86 <code>fsync<\/code> \u64cd\u4f5c\u7684\u9891\u7387\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u5b89\u5168\u6027<\/strong>\uff1a<strong>\u5728\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\u65f6<\/strong>\uff0c\u53ef\u80fd\u4f1a\u4e22\u5931\u6700\u8fd1\u4e00\u79d2\u5185\u63d0\u4ea4\u7684\u4e8b\u52a1\uff0c<strong>\u4f46\u5728 MySQL \u5d29\u6e83\u65f6<\/strong>\uff0c\u5df2\u7ecf\u63d0\u4ea4\u7684\u4e8b\u52a1<strong>\u4e0d\u4f1a\u4e22\u5931<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"lz0kO\">3. <strong>Undo Log \u5237\u65b0\u7b56\u7565<\/strong><\/h3>\n\n\n\n<p id=\"u4a7a7574\">Undo Log \u7528\u4e8e\u652f\u6301\u4e8b\u52a1\u56de\u6eda\u548c MVCC\u3002InnoDB \u4f1a\u6839\u636e\u4ee5\u4e0b\u7b56\u7565\u5237\u65b0 Undo Log\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e8b\u52a1\u63d0\u4ea4\u65f6<\/strong>\uff1a\u5728\u4e8b\u52a1\u63d0\u4ea4\u65f6\uff0cInnoDB \u4f1a\u5c06 Undo Log \u8bb0\u5f55\u5237\u65b0\u5230\u78c1\u76d8\uff0c\u786e\u4fdd\u56de\u6eda\u4fe1\u606f\u7684\u6301\u4e45\u6027\u3002<\/li>\n\n\n\n<li><strong>\u810f\u9875\u5237\u76d8\u65f6<\/strong>\uff1a\u5728\u5c06 Buffer Pool \u4e2d\u7684\u810f\u9875\u5237\u65b0\u5230\u78c1\u76d8\u4e4b\u524d\uff0c\u4f1a\u5148\u5c06\u76f8\u5173\u7684 Undo Log \u5237\u65b0\u5230\u78c1\u76d8\uff0c\u4ee5\u786e\u4fdd\u5728\u7cfb\u7edf\u5d29\u6e83\u65f6\u53ef\u4ee5\u6b63\u786e\u56de\u6eda\u672a\u63d0\u4ea4\u7684\u4e8b\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"iPgxB\">4. <strong>\u53cc\u5199\u7f13\u51b2\u533a\uff08Doublewrite Buffer\uff09<\/strong><\/h3>\n\n\n\n<p id=\"ue24a5c0d\">\u53cc\u5199\u7f13\u51b2\u533a\u662f InnoDB \u4e3a\u4e86\u9632\u6b62\u5199\u5165\u8fc7\u7a0b\u4e2d\u7684\u90e8\u5206\u5199\u5165\uff08partial writes\uff09\u5bfc\u81f4\u6570\u636e\u9875\u635f\u574f\u800c\u5f15\u5165\u7684\u673a\u5236\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5199\u5165\u7b56\u7565<\/strong>\uff1a\u5f53 InnoDB \u5237\u65b0\u810f\u9875\u5230\u78c1\u76d8\u65f6\uff0c\u4f1a\u5148\u5c06\u8fd9\u4e9b\u9875\u5199\u5165\u53cc\u5199\u7f13\u51b2\u533a\uff08\u5185\u5b58\u4e2d\u7684\u4e00\u5757\u8fde\u7eed\u7a7a\u95f4\uff09\uff0c\u7136\u540e\u5c06\u53cc\u5199\u7f13\u51b2\u533a\u4e2d\u7684\u9875\u5199\u5165\u78c1\u76d8\u4e0a\u7684\u8fde\u7eed\u7a7a\u95f4\u3002\u786e\u4fdd\u6570\u636e\u9875\u7684\u5b8c\u6574\u6027\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u6062\u590d<\/strong>\uff1a\u5728\u7cfb\u7edf\u5d29\u6e83\u6062\u590d\u65f6\uff0c\u5982\u679c\u68c0\u6d4b\u5230\u6570\u636e\u9875\u635f\u574f\uff0cInnoDB \u53ef\u4ee5\u4f7f\u7528\u53cc\u5199\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\u9875\u8fdb\u884c\u6062\u590d\uff0c\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"DkaLK\">5. <strong>fsync\u548cwrite\u64cd\u4f5c<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>write \u64cd\u4f5c<\/strong>\uff1a\u5c06\u6570\u636e\u4ece\u5185\u5b58\u5199\u5165\u5230\u64cd\u4f5c\u7cfb\u7edf\u7684\u7f13\u5b58\u4e2d\uff0c\u4f46\u6570\u636e\u8fd8\u6ca1\u6709\u771f\u6b63\u5199\u5165\u5230\u78c1\u76d8\u3002<\/li>\n\n\n\n<li><strong>fsync \u64cd\u4f5c<\/strong>\uff1a\u5f3a\u5236\u5c06\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\u4e2d\u7684\u6570\u636e\u5237\u5165\u5230\u78c1\u76d8\uff0c\u786e\u4fdd\u6570\u636e\u7684\u6301\u4e45\u6027\u3002InnoDB \u4f7f\u7528 fsync \u6765\u4fdd\u8bc1\u4e8b\u52a1\u65e5\u5fd7\u548c\u6570\u636e\u9875\u5728\u5237\u76d8\u65f6\u88ab\u771f\u6b63\u5199\u5165\u78c1\u76d8\u3002<\/li>\n<\/ul>\n\n\n\n<p id=\"ufe430716\">\u5728MySQL\u4e2d\uff0credo log\u5237\u76d8\u7b56\u7565\u548cbinlog\u5237\u76d8\u7b56\u7565\u7684\u8bbe\u7f6e\u5bf9\u4e8e\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u6027\u80fd\u4f18\u5316\u81f3\u5173\u91cd\u8981\u3002\u4e0b\u9762\u662f\u8be6\u7ec6\u7684\u8bbe\u7f6e\u8bf4\u660e\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"MwJpT\">6. \u914d\u7f6eRedo Log\u548cBinlog\u5237\u76d8\u7b56\u7565<\/h3>\n\n\n\n<p><a href=\"https:\/\/zhaoyanqi.cn\/?p=281\">\u914d\u7f6eredo log\u548cBinlog\u7684\u5237\u76d8\u7b56\u7565<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"vLdgj\">\u4e5d\u3001InnoDB\u7684\u8868\u7a7a\u95f4\u8be6\u89e3<\/h2>\n\n\n\n<p id=\"u37cf05f8\"><a href=\"https:\/\/www.yuque.com\/u39220520\/rtqkia\/hoea6x3p4b0764x0\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/zhaoyanqi.cn\/?p=284\">InnoDB\u5b58\u50a8\u5f15\u64ce\u8868\u7a7a\u95f4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00 MySQL\u7ec4\u7ec7\u67b6\u6784 MySQL\u6570\u636e\u5e93\u7cfb\u7edf\u91c7\u7528\u6a21\u5757\u5316\u8bbe\u8ba1\uff0c\u6bcf\u4e2a\u6a21\u5757\u5404\u53f8\u5176\u804c\uff0c\u4fdd\u8bc1\u4e86\u7cfb\u7edf\u7684\u9ad8\u6548\u8fd0\u884c\u548c\u53ef\u6269\u5c55\u6027\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,8],"tags":[],"class_list":["post-289","post","type-post","status-publish","format-standard","hentry","category-mysql_storage_engine","category-mysql"],"_links":{"self":[{"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/posts\/289","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=289"}],"version-history":[{"count":2,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/posts\/289\/revisions"}],"predecessor-version":[{"id":297,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/posts\/289\/revisions\/297"}],"wp:attachment":[{"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}