{"id":68712,"date":"2025-05-26T18:17:39","date_gmt":"2025-05-26T10:17:39","guid":{"rendered":"https:\/\/fwq.ai\/blog\/?p=68712"},"modified":"2025-05-26T18:17:39","modified_gmt":"2025-05-26T10:17:39","slug":"mysql-%e4%b8%bb%e4%bb%8e%e9%83%a8%e7%bd%b2%e4%bc%98%e5%8c%96%e7%ad%96%e7%95%a5%ef%bc%9a%e6%8f%90%e5%8d%87%e6%95%b0%e6%8d%ae%e4%b8%80%e8%87%b4%e6%80%a7%e4%b8%8e%e7%be%8e%e5%9b%bd%e6%9c%8d%e5%8a%a1","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/68712\/","title":{"rendered":"MySQL \u4e3b\u4ece\u90e8\u7f72\u4f18\u5316\u7b56\u7565\uff1a\u63d0\u5347\u6570\u636e\u4e00\u81f4\u6027\u4e0e\u7f8e\u56fd\u670d\u52a1\u5668\u7684\u9ad8\u53ef\u7528\u5b9e\u8df5"},"content":{"rendered":"<p>&nbsp;<\/p>\n<h1>\u524d\u8a00<\/h1>\n<p>\u5728\u73b0\u4ee3\u4e92\u8054\u7f51\u67b6\u6784\u4e2d\uff0cMySQL \u4f5c\u4e3a\u4e3b\u6d41\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7f51\u7ad9\u3001\u5e94\u7528\u548c\u6570\u636e\u670d\u52a1\u7cfb\u7edf\u4e2d\u3002\u4e3a\u4e86\u63d0\u5347\u7cfb\u7edf\u7684\u8bfb\u53d6\u80fd\u529b\u4e0e\u4fdd\u969c\u670d\u52a1\u7684\u9ad8\u53ef\u7528\u6027\uff0c<strong>MySQL \u4e3b\u4ece\u90e8\u7f72\u67b6\u6784<\/strong>\u6210\u4e3a\u4f17\u591a\u4f01\u4e1a\u7684\u9996\u9009\u65b9\u6848\u3002\u901a\u8fc7\u914d\u7f6e\u4e00\u4e3b\u591a\u4ece\u6570\u636e\u5e93\u4f53\u7cfb\uff0c\u53ef\u4ee5\u6709\u6548\u7f13\u89e3\u4e3b\u8282\u70b9\u7684\u538b\u529b\uff0c\u5e76\u5b9e\u73b0\u6570\u636e\u5197\u4f59\u4e0e\u4e1a\u52a1\u8fde\u7eed\u6027\u4fdd\u969c\u3002<\/p>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8 MySQL \u4e3b\u4ece\u67b6\u6784\u7684\u642d\u5efa\u3001\u6570\u636e\u4e00\u81f4\u6027\u7684\u4f18\u5316\u7b56\u7565\uff0c\u4ee5\u53ca\u5728\u7f8e\u56fd\u670d\u52a1\u5668\u90e8\u7f72\u4e2d\u5982\u4f55\u8fdb\u4e00\u6b65\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u4e0e\u7a33\u5b9a\u6027\u3002<\/p>\n<hr \/>\n<h2>\u4e00\u3001\u4e00\u4e3b\u591a\u4ece\u67b6\u6784\u8bbe\u8ba1\u7406\u5ff5<\/h2>\n<p>\u5728\u4e3b\u4ece\u590d\u5236\u6a21\u578b\u4e2d\uff0c\u4e3b\u6570\u636e\u5e93\u627f\u62c5\u5199\u64cd\u4f5c\u804c\u8d23\uff0c\u800c\u4e00\u4e2a\u6216\u591a\u4e2a\u4ece\u6570\u636e\u5e93\u8d1f\u8d23\u8bfb\u53d6\u8bf7\u6c42\u3002\u6b64\u67b6\u6784\u80fd\u5927\u5e45\u5ea6\u964d\u4f4e\u4e3b\u8282\u70b9\u7684\u8d1f\u8f7d\u538b\u529b\uff0c\u540c\u65f6\u4e3a\u8bfb\u53d6\u5bc6\u96c6\u578b\u4e1a\u52a1\u573a\u666f\u63d0\u4f9b\u5f39\u6027\u6269\u5c55\u80fd\u529b\u3002<\/p>\n<p><strong>\u4e3b\u8981\u4f18\u52bf\u5305\u62ec\uff1a<\/strong><\/p>\n<ul>\n<li>\u663e\u8457\u63d0\u5347\u8bfb\u5199\u5206\u79bb\u6548\u7387\uff1b<\/li>\n<li>\u63d0\u4f9b\u707e\u96be\u6062\u590d\u80fd\u529b\uff1b<\/li>\n<li>\u6613\u4e8e\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u4e0e\u9ad8\u53ef\u7528\u96c6\u7fa4\u3002<\/li>\n<\/ul>\n<p>\u90e8\u7f72\u5728\u9ad8\u6027\u80fd\u7684<strong>\u7f8e\u56fd\u4e91\u670d\u52a1\u5668<\/strong>\u4e0a\uff0c\u80fd\u8fdb\u4e00\u6b65\u589e\u5f3a\u4e3b\u4ece\u67b6\u6784\u7684\u53ef\u6269\u5c55\u6027\u4e0e\u5168\u7403\u8bbf\u95ee\u901f\u5ea6\u3002<\/p>\n<hr \/>\n<h2>\u4e8c\u3001\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>\u5728\u4e3b\u4ece\u590d\u5236\u73af\u5883\u4e2d\uff0c\u4e3b\u4ece\u6570\u636e\u5b58\u5728\u8f7b\u5fae\u4e0d\u4e00\u81f4\u7684\u53ef\u80fd\uff0c\u5e38\u89c1\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u7f51\u7edc\u6ce2\u52a8\u4e0e\u5ef6\u8fdf<\/strong>\uff1abinlog \u4f20\u8f93\u8fc7\u7a0b\u4e2d\u53d7\u5230\u7f51\u7edc\u5f71\u54cd\uff1b<\/li>\n<li><strong>\u590d\u5236\u6ede\u540e<\/strong>\uff1a\u4ece\u5e93\u5728\u6267\u884c\u65e5\u5fd7\u65f6\u5b58\u5728\u5904\u7406\u5ef6\u8fdf\uff1b<\/li>\n<li><strong>\u4e3b\u8282\u70b9\u6545\u969c\u540e\u6062\u590d\u4e0d\u5f53<\/strong>\uff1a\u91cd\u542f\u987a\u5e8f\u6216\u6570\u636e\u8986\u76d6\u9519\u8bef\u3002<\/li>\n<\/ul>\n<h3>\u2705 \u63a8\u8350\u7684\u4f18\u5316\u7b56\u7565\uff1a<\/h3>\n<h4>1. \u542f\u7528\u534a\u540c\u6b65\u590d\u5236\u673a\u5236<\/h4>\n<p>MySQL \u9ed8\u8ba4\u4f7f\u7528\u5f02\u6b65\u590d\u5236\uff0c\u5728\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u4f1a\u52a0\u5267\u5ef6\u8fdf\u3002\u53ef\u6539\u4e3a\u534a\u540c\u6b65\u590d\u5236\uff0c\u4ee5\u589e\u5f3a\u4e00\u81f4\u6027\uff1a<\/p>\n<p>\u4e3b\u5e93\u542f\u7528\u63d2\u4ef6\uff1a<\/p>\n<pre><code class=\"language-sql\">INSTALL PLUGIN rpl_semi_sync_master SONAME 'semisync_master.so';\r\nSET GLOBAL rpl_semi_sync_master_enabled = 1;\r\n<\/code><\/pre>\n<p>\u4ece\u5e93\u542f\u7528\u63d2\u4ef6\uff1a<\/p>\n<pre><code class=\"language-sql\">INSTALL PLUGIN rpl_semi_sync_slave SONAME 'semisync_slave.so';\r\nSET GLOBAL rpl_semi_sync_slave_enabled = 1;\r\n<\/code><\/pre>\n<h4>2. \u5b9e\u65f6\u76d1\u63a7\u590d\u5236\u72b6\u6001<\/h4>\n<p>\u4f7f\u7528 <code>SHOW SLAVE STATUS\\G;<\/code> \u53ef\u5b9e\u65f6\u67e5\u770b\u4ece\u5e93\u7684\u590d\u5236\u5ef6\u8fdf\uff0c\u5173\u6ce8\u4ee5\u4e0b\u5b57\u6bb5\uff1a<\/p>\n<ul>\n<li><code>Seconds_Behind_Master<\/code>\uff1a\u4ece\u5e93\u6ede\u540e\u4e3b\u5e93\u7684\u79d2\u6570\uff1b<\/li>\n<li><code>Read_Master_Log_Pos<\/code> \u4e0e <code>Relay_Log_Pos<\/code>\uff1a\u7528\u4e8e\u6bd4\u5bf9\u65e5\u5fd7\u4f4d\u7f6e\u5dee\u5f02\u3002<\/li>\n<\/ul>\n<h4>3. \u4f18\u5316\u4ece\u5e93\u786c\u4ef6\u6027\u80fd<\/h4>\n<p>\u4e3a\u4e86\u51cf\u5c11\u5904\u7406\u74f6\u9888\uff0c\u63a8\u8350\u4ece\u5e93\u4f7f\u7528 <strong>SSD \u5b58\u50a8\u3001\u9ad8\u9891 CPU \u4e0e\u5145\u8db3\u5185\u5b58\u914d\u7f6e<\/strong>\uff0c\u5e76\u9002\u5f53\u8c03\u5927 <code>innodb_buffer_pool_size<\/code> \u4ee5\u63d0\u5347 InnoDB \u6027\u80fd\u3002<\/p>\n<p>\u5728\u4f7f\u7528\u6027\u80fd\u5f3a\u5927\u7684<strong>\u7f8e\u56fdvps<\/strong>\u4f5c\u4e3a\u4ece\u5e93\u670d\u52a1\u5668\u65f6\uff0c\u786c\u4ef6\u5c42\u9762\u66f4\u5bb9\u6613\u5b9e\u73b0\u9ad8\u6027\u80fd\u4f4e\u5ef6\u8fdf\u540c\u6b65\u3002<\/p>\n<hr \/>\n<h2>\u4e09\u3001\u5b9e\u73b0\u9ad8\u53ef\u7528\u6027\u7684\u6838\u5fc3\u65b9\u6cd5<\/h2>\n<p>\u4e3a\u9632\u6b62\u5355\u70b9\u6545\u969c\u5e26\u6765\u4e1a\u52a1\u4e2d\u65ad\uff0c\u5e94\u63d0\u524d\u89c4\u5212\u81ea\u52a8\u6216\u624b\u52a8\u7684\u4e3b\u4ece\u5207\u6362\u673a\u5236\uff1a<\/p>\n<h3>1. \u4f7f\u7528 MHA \u5b9e\u73b0\u4e3b\u5e93\u81ea\u52a8\u5207\u6362<\/h3>\n<p>MHA\uff08Master High Availability\uff09\u662f MySQL \u9ad8\u53ef\u7528\u65b9\u6848\u4e2d\u975e\u5e38\u6210\u719f\u7684\u89e3\u51b3\u5de5\u5177\uff0c\u53ef\u81ea\u52a8\u76d1\u63a7\u4e3b\u5e93\u72b6\u6001\u5e76\u5728\u4e3b\u5e93\u5b95\u673a\u65f6\u5c06\u6700\u5b8c\u6574\u7684\u4ece\u5e93\u664b\u5347\u4e3a\u65b0\u7684\u4e3b\u5e93\u3002<\/p>\n<p>\u90e8\u7f72\u6b65\u9aa4\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u914d\u7f6e MHA \u7ba1\u7406\u8282\u70b9\uff1b<\/li>\n<li>\u8bbe\u7f6e\u6545\u969c\u68c0\u6d4b\u4e0e\u90ae\u4ef6\u901a\u77e5\uff1b<\/li>\n<li>\u81ea\u52a8\u6267\u884c\u4e3b\u4ece\u5207\u6362\u811a\u672c\u3002<\/li>\n<\/ul>\n<h3>2. \u624b\u52a8\u6216\u811a\u672c\u5207\u6362\u65b9\u5f0f<\/h3>\n<p>\u5728\u9884\u7b97\u53d7\u9650\u6216\u73af\u5883\u8f83\u5c0f\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u901a\u8fc7\u5982\u4e0b\u65b9\u5f0f\u624b\u52a8\u6062\u590d\uff1a<\/p>\n<ul>\n<li>\u5c06\u4ece\u5e93\u8bbe\u4e3a\u65b0\u7684\u4e3b\u5e93\uff1b<\/li>\n<li>\u8c03\u6574\u5176\u4ed6\u4ece\u5e93\u7684\u590d\u5236\u6e90\uff1b<\/li>\n<li>\u4fee\u6539\u5e94\u7528\u7a0b\u5e8f\u7684\u6570\u636e\u5e93\u8fde\u63a5\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u4e5f\u53ef\u901a\u8fc7\u81ea\u5b9a\u4e49\u811a\u672c\u8fdb\u884c\u4e3b\u4ece\u72b6\u6001\u68c0\u6d4b\u4e0e\u5207\u6362\uff0c\u63d0\u9ad8\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n<hr \/>\n<h2>\u56db\u3001\u8bfb\u5199\u5206\u79bb\u4e2d\u95f4\u4ef6\u63a8\u8350<\/h2>\n<p>\u53ef\u5f15\u5165 MyCat\u3001ProxySQL \u7b49\u6570\u636e\u5e93\u4e2d\u95f4\u4ef6\u5b9e\u73b0\u8bfb\u5199\u5206\u79bb\u903b\u8f91\uff0c\u8ba9\u5199\u5165\u8bf7\u6c42\u5b9a\u4f4d\u81f3\u4e3b\u5e93\uff0c\u8bfb\u53d6\u8bf7\u6c42\u81ea\u52a8\u8def\u7531\u5230\u4ece\u5e93\uff0c\u8fdb\u4e00\u6b65\u5206\u62c5\u4e3b\u8282\u70b9\u538b\u529b\u3002<\/p>\n<p>\u90e8\u7f72\u8fd9\u4e9b\u4e2d\u95f4\u4ef6\u81f3\u9ad8\u5e26\u5bbd\u4f4e\u5ef6\u8fdf\u7684<strong>\u7f8e\u56fd\u670d\u52a1\u5668<\/strong>\u4e2d\uff0c\u53ef\u6709\u6548\u63d0\u5347\u8de8\u533a\u57df\u8bbf\u95ee\u6027\u80fd\u4e0e\u7cfb\u7edf\u6574\u4f53\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n<hr \/>\n<h2>\u4e94\u3001\u603b\u7ed3\u4e0e\u5b9e\u8df5\u5efa\u8bae<\/h2>\n<p>MySQL \u4e3b\u4ece\u90e8\u7f72\u4e0d\u4ec5\u53ef\u4ee5\u7f13\u89e3\u6570\u636e\u5e93\u7684\u8bfb\u53d6\u538b\u529b\uff0c\u8fd8\u4e3a\u9ad8\u53ef\u7528\u6027\u4e0e\u707e\u5907\u63d0\u4f9b\u4e86\u5f3a\u6709\u529b\u7684\u652f\u6301\u3002\u901a\u8fc7\u5408\u7406\u9009\u62e9\u590d\u5236\u6a21\u5f0f\u3001\u4f18\u5316\u4ece\u5e93\u6027\u80fd\u914d\u7f6e\u3001\u90e8\u7f72\u8bfb\u5199\u5206\u79bb\u67b6\u6784\uff0c\u5e76\u7ed3\u5408\u9ad8\u8d28\u91cf\u670d\u52a1\u5668\u8d44\u6e90\uff08\u5982<strong>\u7f8e\u56fd\u4e91\u670d\u52a1\u5668<\/strong>\uff09\uff0c\u53ef\u4ee5\u5927\u5e45\u63d0\u5347\u4e1a\u52a1\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u4e0e\u62d3\u5c55\u80fd\u529b\u3002<\/p>\n<p>\u5bf9\u4e8e\u9700\u8981\u5168\u7403\u4e1a\u52a1\u90e8\u7f72\u3001\u8de8\u56fd\u8bbf\u95ee\u7a33\u5b9a\u6027\u7684\u7528\u6237\uff0c\u63a8\u8350\u9009\u7528\u9ad8\u6027\u80fd\u3001\u4f4e\u5ef6\u8fdf\u7684 <a href=\"https:\/\/fwq.ai\/\">\u7f8e\u56fd\u670d\u52a1\u5668<\/a> \u6765\u6784\u5efa\u6570\u636e\u5e93\u67b6\u6784\uff0c\u4fdd\u969c\u670d\u52a1\u7684\u6301\u7eed\u53ef\u7528\u6027\u4e0e\u5feb\u901f\u54cd\u5e94\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; \u524d\u8a00 \u5728\u73b0\u4ee3\u4e92\u8054\u7f51\u67b6\u6784\u4e2d\uff0cMySQL \u4f5c\u4e3a\u4e3b\u6d41\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7f51\u7ad9\u3001\u5e94\u7528\u548c\u6570\u636e\u670d\u52a1\u7cfb\u7edf\u4e2d\u3002\u4e3a\u4e86\u63d0\u5347\u7cfb\u7edf\u7684\u8bfb\u53d6\u80fd\u529b\u4e0e\u4fdd\u969c\u670d\u52a1\u7684\u9ad8\u53ef\u7528\u6027\uff0cMySQL \u4e3b\u4ece\u90e8\u7f72\u67b6\u6784\u6210\u4e3a\u4f17\u591a\u4f01\u4e1a\u7684\u9996\u9009\u65b9\u6848\u3002\u901a\u8fc7\u914d\u7f6e\u4e00\u4e3b\u591a\u4ece\u6570\u636e\u5e93\u4f53\u7cfb\uff0c\u53ef\u4ee5\u6709\u6548\u7f13\u89e3\u4e3b\u8282\u70b9\u7684\u538b\u529b\uff0c\u5e76\u5b9e\u73b0\u6570\u636e\u5197\u4f59\u4e0e\u4e1a\u52a1\u8fde\u7eed\u6027\u4fdd\u969c\u3002 \u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8 MySQL \u4e3b\u4ece\u67b6\u6784\u7684\u642d\u5efa\u3001\u6570\u636e\u4e00\u81f4\u6027\u7684\u4f18\u5316\u7b56\u7565\uff0c\u4ee5\u53ca\u5728\u7f8e\u56fd\u670d\u52a1\u5668\u90e8\u7f72\u4e2d\u5982\u4f55\u8fdb\u4e00\u6b65\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u4e0e\u7a33\u5b9a\u6027\u3002 \u4e00\u3001\u4e00\u4e3b\u591a\u4ece\u67b6\u6784\u8bbe\u8ba1\u7406\u5ff5 \u5728\u4e3b\u4ece\u590d\u5236\u6a21\u578b\u4e2d\uff0c\u4e3b\u6570\u636e\u5e93\u627f\u62c5\u5199\u64cd\u4f5c\u804c\u8d23\uff0c\u800c\u4e00\u4e2a\u6216\u591a\u4e2a\u4ece\u6570\u636e\u5e93\u8d1f\u8d23\u8bfb\u53d6\u8bf7\u6c42\u3002\u6b64\u67b6\u6784\u80fd\u5927\u5e45\u5ea6\u964d\u4f4e\u4e3b\u8282\u70b9\u7684\u8d1f\u8f7d\u538b\u529b\uff0c\u540c\u65f6\u4e3a\u8bfb\u53d6\u5bc6\u96c6\u578b\u4e1a\u52a1\u573a\u666f\u63d0\u4f9b\u5f39\u6027\u6269\u5c55\u80fd\u529b\u3002 \u4e3b\u8981\u4f18\u52bf\u5305\u62ec\uff1a 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