{"id":798,"date":"2026-02-19T23:10:06","date_gmt":"2026-02-19T15:10:06","guid":{"rendered":"http:\/\/47.100.165.17\/wordpress\/?p=798"},"modified":"2026-02-19T23:10:08","modified_gmt":"2026-02-19T15:10:08","slug":"%e3%80%90mysql%e3%80%91%e4%b8%bb%e4%bb%8e%e5%a4%8d%e5%88%b6%e5%bb%b6%e8%bf%9f%ef%bc%9a%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90%e3%80%81%e5%88%a4%e6%96%ad%e6%96%b9%e6%b3%95%e4%b8%8e%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/yunyanglib.cn\/?p=798","title":{"rendered":"\u3010MySQL\u3011\u4e3b\u4ece\u590d\u5236\u5ef6\u8fdf\uff1a\u539f\u56e0\u5206\u6790\u3001\u5224\u65ad\u65b9\u6cd5\u4e0e\u4f18\u5316\u65b9\u6848"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728 MySQL \u4e3b\u4ece\u67b6\u6784\u7684\u751f\u4ea7\u73af\u5883\u4e2d\uff0c<strong>\u4e3b\u4ece\u590d\u5236\u5ef6\u8fdf<\/strong>\u662f\u6700\u5e38\u89c1\u3001\u6700\u5f71\u54cd\u4e1a\u52a1\u7a33\u5b9a\u6027\u7684\u95ee\u9898\u4e4b\u4e00\u3002\u8f7b\u5219\u5bfc\u81f4\u8bfb\u5199\u5206\u79bb\u540e\u6570\u636e\u67e5\u8be2\u4e0d\u4e00\u81f4\uff0c\u91cd\u5219\u5f15\u53d1\u4e1a\u52a1\u903b\u8f91\u5f02\u5e38\u3001\u62a5\u8b66\u9891\u53d1\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u5929\u6211\u628a\u5b9e\u6218\u4e2d\u603b\u7ed3\u7684<strong>\u5ef6\u8fdf\u6838\u5fc3\u539f\u56e0\u3001\u7cbe\u51c6\u5224\u65ad\u65b9\u6cd5\u3001\u53ef\u843d\u5730\u4f18\u5316\u65b9\u6848<\/strong>\u5168\u6d41\u7a0b\u6574\u7406\u51fa\u6765\uff0c\u5168\u90e8\u662f\u751f\u4ea7\u53ef\u76f4\u63a5\u4f7f\u7528\u7684\u5e72\u8d27\uff0c\u5e0c\u671b\u80fd\u5e2e\u5927\u5bb6\u5f7b\u5e95\u641e\u5b9a\u4e3b\u4ece\u5ef6\u8fdf\u95ee\u9898\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"uggwx\">\u4e00\u3001\u6df1\u5ea6\u89e3\u6790\uff1a\u4e3b\u4ece\u590d\u5236\u5ef6\u8fdf\u7684 5 \u5927\u6838\u5fc3\u539f\u56e0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u19bdfa13\">\u4e3b\u4ece\u590d\u5236\u7684\u6838\u5fc3\u6d41\u7a0b\uff1a<strong>\u4e3b\u5e93\u5199\u5165 Binlog \u2192 \u4ece\u5e93 IO \u7ebf\u7a0b\u62c9\u53d6 Binlog \u751f\u6210 Relay Log \u2192 \u4ece\u5e93 SQL \u7ebf\u7a0b\u56de\u653e Relay Log<\/strong>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u19bdfa13\">\u5ef6\u8fdf\u7684\u672c\u8d28\uff1a<strong>\u4e3b\u5e93\u5199\u5165\u901f\u5ea6 \uff1e \u4ece\u5e93\u540c\u6b65 + \u56de\u653e\u901f\u5ea6<\/strong>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"QwwUc\">1. \u4e3b\u5e93\u589e\u5220\u6539\u5e76\u53d1\u8fc7\u9ad8\uff0c\u4ece\u5e93\u5355\u7ebf\u7a0b \u201c\u63a5\u4e0d\u4f4f\u201d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u8e83915f\">\u82e5\u4ece\u5e93\u672a\u5f00\u542f\u591a\u7ebf\u7a0b\u590d\u5236\uff0c\u4e3b\u5e93\u53ef\u901a\u8fc7\u591a\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u6267\u884c\u589e\u5220\u6539\u64cd\u4f5c\uff0c\u800c\u4ece\u5e93\u4ec5\u4f9d\u8d56\u5355\u4e2a SQL \u7ebf\u7a0b\u89e3\u6790 Relay Log \u5e76\u56de\u653e \u2014\u2014 \u5f53\u4e3b\u5e93\u5e76\u53d1\u91cf\u7a81\u7834\u4ece\u5e93\u5355\u7ebf\u7a0b\u5904\u7406\u80fd\u529b\u65f6\uff0c\u5ef6\u8fdf\u4f1a\u6301\u7eed\u7d2f\u79ef\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u1c88e425\"><strong>\u5b9e\u64cd\u6848\u4f8b<\/strong>\uff1a\u7528 Sysbench \u6a21\u62df\u4e3b\u5e93\u9ad8\u5e76\u53d1\u5199\u5165<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u9a9958b3\">\u5728\u4e3b\u5e93\u6267\u884c\u538b\u6d4b\u547d\u4ee4\uff0c\u521b\u5efa 4 \u5f20\u8868\u3001\u6bcf\u5f20\u8868 50 \u4e07\u6570\u636e\uff0c\u4ee5 4 \u7ebf\u7a0b\u5e76\u53d1\u5199\u5165 100 \u79d2\uff1a<\/p>\n\n\n\n<pre id=\"CpC34\" class=\"wp-block-code\"><code># \u4e3b\u5e93\u6267\u884c\uff1a\u521b\u5efa\u6d4b\u8bd5\u5e93\u5e76\u538b\u6d4b\n\ncreate database sysbench_db;\n\n# \u5b89\u88c5sysbench\u5de5\u5177\nyum install -y epel-release\nyum install -y sysbench\nsysbench --version\n\nsysbench --db-driver=mysql  --mysql-host=192.168.184.151 --mysql-port=3306 --mysql-user='repl_rw' --mysql-password='Uda_dQc63' --mysql-db=sysbench_db --threads=4 --table_size=500000 --tables=4  --time=100  oltp_write_only prepare<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u616f23e2\">\u6b64\u65f6\u5728\u4ece\u5e93\u6267\u884c<code>show slave status\\G<\/code>\uff0c\u53ef\u660e\u663e\u89c2\u5bdf\u5230<code>Seconds_Behind_Master<\/code>\uff08\u5ef6\u8fdf\u79d2\u6570\uff09\u5927\u4e8e 0\uff0c\u8bc1\u660e\u5355\u7ebf\u7a0b\u590d\u5236\u65e0\u6cd5\u5e94\u5bf9\u4e3b\u5e93\u5e76\u53d1\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1006\" height=\"746\" src=\"http:\/\/47.100.165.17\/wordpress\/wp-content\/uploads\/2026\/02\/image-221.png\" alt=\"\" class=\"wp-image-801\" srcset=\"https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/02\/image-221.png 1006w, https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/02\/image-221-300x222.png 300w, https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/02\/image-221-768x570.png 768w\" sizes=\"(max-width: 1006px) 100vw, 1006px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"HaKVY\">2. \u5927\u8868 DDL \u64cd\u4f5c\uff1a\u5143\u6570\u636e\u9501 + \u540c\u6b65\u673a\u5236\u5bfc\u81f4\u5ef6\u8fdf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ucc867a8a\">DDL\uff08\u6570\u636e\u5b9a\u4e49\u8bed\u8a00\uff0c\u5982 ALTER TABLE\uff09\u4f1a\u5728\u4e3b\u5e93\u751f\u6210\u5143\u6570\u636e\u9501\uff0c\u4e14\u9700\u7b49\u4e3b\u5e93\u6267\u884c\u5b8c DDL \u540e\u624d\u5199\u5165 Binlog\u2014\u2014 \u4ece\u5e93\u9700\u7b49\u4e3b\u5e93 DDL \u5b8c\u6210\u540e\uff0c\u518d\u901a\u8fc7 SQL \u7ebf\u7a0b\u56de\u653e\uff0c\u82e5\u4ece\u5e93\u4e3a\u5355\u7ebf\u7a0b\uff0c\u671f\u95f4\u6240\u6709\u4e8b\u52a1\u9700\u6392\u961f\u7b49\u5f85\uff0c\u5ef6\u8fdf\u4f1a\u663e\u8457\u589e\u52a0\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u8069c2f4\"><strong>\u5b9e\u64cd\u5bf9\u6bd4<\/strong>\uff1a\u4e0d\u540c DDL \u65b9\u5f0f\u7684\u5ef6\u8fdf\u5dee\u5f02<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u573a\u666f 1\uff1a\u5728\u5927\u8868\u4e2d\u95f4\u63d2\u5165\u5217\uff08\u8017\u65f6\u4e45\uff0c\u6613\u5ef6\u8fdf\uff09\u4e3b\u5e93\u6267\u884c<code>alter table sbtest1 add column d char(10) after c;<\/code>\uff0c\u6267\u884c\u671f\u95f4\u4ece\u5e93<code>show slave status\\G<\/code>\u65e0\u5ef6\u8fdf\uff08\u4e3b\u5e93\u672a\u5199\u5b8c Binlog\uff09\uff0c\u4e3b\u5e93\u6267\u884c\u5b8c\u540e\u4ece\u5e93\u5f00\u59cb\u56de\u653e\uff0c\u5ef6\u8fdf\u9aa4\u589e\u3002<\/li>\n\n\n\n<li>\u573a\u666f 2\uff1a\u5728\u5927\u8868\u672b\u5c3e\u8ffd\u52a0\u5217\uff08\u8017\u65f6\u77ed\uff0c\u65e0\u5ef6\u8fdf\uff09\u4e3b\u5e93\u6267\u884c<code>alter table sbtest1 add column e char(10);<\/code>\uff0c\u56e0 MySQL \u5bf9 \u201c\u672b\u5c3e\u8ffd\u52a0\u5217\u201d \u4f18\u5316\uff0c\u65e0\u9700\u91cd\u6784\u5168\u8868\uff0c\u4ece\u5e93\u56de\u653e\u901f\u5ea6\u6781\u5feb\uff0c\u65e0\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u4fc96c95\"><strong>\u5efa\u8bae<\/strong>\uff1a\u5927\u8868 DDL \u4f18\u5148\u7528 Online DDL \u5de5\u5177\uff08\u5982 pt-online-schema-change\uff09\uff0c\u6216\u5728\u4e1a\u52a1\u4f4e\u5cf0\u671f\u6267\u884c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"wgYtL\">3. \u4ece\u5e93\u5907\u4efd\uff1aFlash Table \u963b\u585e\u5199\u5165<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u5c490300\">\u4ece\u5e93\u6267\u884c\u5907\u4efd\uff08\u5982 mysqldump\u3001xtrabackup\uff09\u65f6\uff0c\u5de5\u5177\u4f1a\u89e6\u53d1<code>FLUSH TABLES WITH READ LOCK<\/code>\uff08FTWRL\uff09\uff0c\u76ee\u7684\u662f\u786e\u4fdd\u975e\u4e8b\u52a1\u5f15\u64ce\u8868\uff08\u5982 MyISAM\uff09\u7684\u6570\u636e\u4e00\u81f4\u6027\u3002\u82e5\u4ece\u5e93\u6570\u636e\u91cf\u5927\uff0cFTWRL \u6301\u6709\u65f6\u95f4\u957f\uff0c\u671f\u95f4\u4ece\u5e93 SQL \u7ebf\u7a0b\u65e0\u6cd5\u5199\u5165\uff0c\u5bfc\u81f4\u5ef6\u8fdf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"CJFqJ\">4. \u5927\u4e8b\u52a1\uff1a\u4ece\u5e93\u5355\u7ebf\u7a0b \u201c\u5361\u8116\u5b50\u201d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uef8c187b\">\u4e3b\u5e93\u652f\u6301\u5927\u4e8b\u52a1\u4e0e\u5176\u4ed6\u4e8b\u52a1\u5e76\u53d1\u6267\u884c\uff0c\u4f46\u4ece\u5e93\u5355\u7ebf\u7a0b\u590d\u5236\u65f6\uff0c\u9700\u7b49\u5927\u4e8b\u52a1\u5b8c\u6574\u56de\u653e\u540e\u624d\u80fd\u5904\u7406\u540e\u7eed\u4e8b\u52a1 \u2014\u2014 \u82e5\u5927\u4e8b\u52a1\u6267\u884c\u8017\u65f6\u4e45\uff08\u5982\u6279\u91cf\u63d2\u5165 100 \u4e07\u884c\u6570\u636e\uff09\uff0c\u4ece\u5e93\u5ef6\u8fdf\u4f1a\u6301\u7eed\u6269\u5927\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uf565c12d\"><strong>\u5b9e\u64cd\u6848\u4f8b<\/strong>\uff1a\u6a21\u62df\u5927\u4e8b\u52a1\u5ef6\u8fdf<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u7d9b118b\">\u4e3b\u5e93\u6267\u884c \u201c\u81ea\u589e\u590d\u5236\u6570\u636e\u201d \u7684\u5927\u4e8b\u52a1\uff1a<\/p>\n\n\n\n<pre id=\"haV8E\" class=\"wp-block-code\"><code>-- \u4e3b\u5e93\u6267\u884c\uff1a\u5c06sbtest1\u8868\u6570\u636e\u7ffb\u500d\uff08\u5927\u4e8b\u52a1\uff09\n\ninsert into sbtest1(k,c,pad) select k,c,pad from sbtest1;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e8b\u52a1\u6267\u884c\u4e2d\uff1a\u4e3b\u5e93\u672a\u5199\u5165 Binlog\uff0c\u4ece\u5e93<code>show slave status\\G<\/code>\u65e0\u5ef6\u8fdf\uff1b<\/li>\n\n\n\n<li>\u4e8b\u52a1\u6267\u884c\u5b8c\uff1aBinlog \u540c\u6b65\u5230\u4ece\u5e93\uff0c\u4ece\u5e93\u5355\u7ebf\u7a0b\u56de\u653e\uff0c\u5ef6\u8fdf\u663e\u8457\u589e\u52a0\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"VF2je\">5. \u4ece\u5e93\u914d\u7f6e \u201c\u62d6\u540e\u817f\u201d\uff1a\u786c\u4ef6\u6027\u80fd\u4e0d\u8db3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3b5ea056\">\u90e8\u5206\u573a\u666f\u4e3a\u8282\u7ea6\u6210\u672c\uff0c\u4ece\u5e93\u4f7f\u7528\u4f4e\u914d\u670d\u52a1\u5668\uff08CPU \u6838\u6570\u5c11\u3001\u5185\u5b58\u5c0f\u3001\u78c1\u76d8 IO \u6162\uff09\uff0c\u800c\u4e3b\u5e93\u4e3a\u9ad8\u6027\u80fd\u914d\u7f6e \u2014\u2014 \u4ece\u5e93 CPU \u5904\u7406\u80fd\u529b\u3001IO \u5199\u5165\u901f\u5ea6\u65e0\u6cd5\u5339\u914d\u4e3b\u5e93\u7684 Binlog \u751f\u6210\u901f\u5ea6\uff0c\u81ea\u7136\u5bfc\u81f4\u5ef6\u8fdf\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"HbC2i\">\u4e8c\u3001\u79d1\u5b66\u5224\u65ad\uff1a3 \u79cd\u4e3b\u4ece\u5ef6\u8fdf\u68c0\u6d4b\u65b9\u6cd5\uff08\u542b GTID \u811a\u672c\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub9212448\">\u5224\u65ad\u4e3b\u4ece\u5ef6\u8fdf\u9700\u7ed3\u5408\u4e1a\u52a1\u573a\u666f\u9009\u62e9\u65b9\u6cd5\uff0c\u907f\u514d\u5355\u4e00\u4f9d\u8d56\u67d0\u4e00\u6307\u6807\u5bfc\u81f4\u8bef\u5224\u3002\u4ee5\u4e0b\u662f 3 \u79cd\u6838\u5fc3\u65b9\u6cd5\u53ca\u5b9e\u64cd\u6848\u4f8b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"qc6Fy\">1. \u57fa\u7840\u6307\u6807\uff1aSeconds_Behind_Master<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1003\" height=\"718\" src=\"http:\/\/47.100.165.17\/wordpress\/wp-content\/uploads\/2026\/02\/image-222.png\" alt=\"\" class=\"wp-image-802\" srcset=\"https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/02\/image-222.png 1003w, https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/02\/image-222-300x215.png 300w, https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/02\/image-222-768x550.png 768w\" sizes=\"(max-width: 1003px) 100vw, 1003px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ubc989f1b\">\u4ece\u5e93\u6267\u884c<code>show slave status\\G<\/code>\uff0c\u67e5\u770b<code>Seconds_Behind_Master<\/code>\u53c2\u6570\uff0c\u542b\u4e49\u662f \u201c\u4ece\u5e93 SQL \u7ebf\u7a0b\u4e0e\u4e3b\u5e93\u7684\u65f6\u95f4\u5dee\uff08\u79d2\uff09\u201d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u82e5\u503c\u4e3a 0\uff1a\u5927\u6982\u7387\u65e0\u5ef6\u8fdf\uff0c\u4f46\u9700\u6ce8\u610f<strong>\u7f51\u7edc\u5f02\u5e38\u65f6\u53ef\u80fd\u8bef\u5224<\/strong>\uff08\u5982 IO \u7ebf\u7a0b\u4e2d\u65ad\uff0cSQL \u7ebf\u7a0b\u65e0\u65b0\u6570\u636e\u53ef\u6267\u884c\uff0c\u53c2\u6570\u4ecd\u663e\u793a 0\uff09\uff1b<\/li>\n\n\n\n<li>\u82e5\u503c\uff1e0\uff1a\u8868\u793a\u5b58\u5728\u5ef6\u8fdf\uff0c\u6570\u503c\u8d8a\u5927\u5ef6\u8fdf\u8d8a\u4e25\u91cd\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uf4ff6fd7\"><strong>\u5c40\u9650\u6027<\/strong>\uff1a\u65e0\u6cd5\u91cf\u5316\u5ef6\u8fdf\u7684\u4e8b\u52a1\u6570\uff0c\u4ec5\u80fd\u53cd\u6620\u65f6\u95f4\u5dee\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"D69zA\">2. \u7cbe\u51c6\u5bf9\u6bd4\uff1a\u57fa\u4e8e\u4f4d\u70b9\u7684\u590d\u5236\u6821\u9a8c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ucf38c731\">\u82e5\u4e3b\u4ece\u590d\u5236\u57fa\u4e8e \u201cBinlog \u6587\u4ef6\u540d + \u4f4d\u70b9\u201d\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u4e24\u7ec4\u53c2\u6570\u5224\u65ad\u5ef6\u8fdf\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u53c2\u6570\u540d\u79f0<\/td><td>\u542b\u4e49<\/td><td>\u5ef6\u8fdf\u5224\u65ad\u6807\u51c6<\/td><\/tr><tr><td>Master_Log_File<\/td><td>\u4ece\u5e93 IO \u7ebf\u7a0b\u6b63\u5728\u8bfb\u53d6\u7684\u4e3b\u5e93 Binlog \u6587\u4ef6\u540d<\/td><td>\u82e5\u4e0e Relay_Master_Log_File \u4e0d\u76f8\u7b49\uff0c\u8bf4\u660e IO \u7ebf\u7a0b\u672a\u8ffd\u5e73\u4e3b\u5e93\uff1b\u82e5\u76f8\u7b49\uff0c\u518d\u770b\u4f4d\u70b9<\/td><\/tr><tr><td>Relay_Master_Log_File<\/td><td>\u4ece\u5e93 SQL \u7ebf\u7a0b\u6700\u8fd1\u6267\u884c\u7684 Binlog \u6587\u4ef6\u540d<\/td><td><\/td><\/tr><tr><td>Read_Master_Log_Pos<\/td><td>\u4ece\u5e93 IO \u7ebf\u7a0b\u8bfb\u53d6\u7684\u4e3b\u5e93 Binlog \u4f4d\u70b9<\/td><td>\u82e5\u4e0e Exec_Master_Log_Pos \u4e0d\u76f8\u7b49\uff0c\u8bf4\u660e SQL \u7ebf\u7a0b\u672a\u8ffd\u5e73 IO \u7ebf\u7a0b<\/td><\/tr><tr><td>Exec_Master_Log_Pos<\/td><td>\u4ece\u5e93 SQL \u7ebf\u7a0b\u6267\u884c\u7684 Binlog \u4f4d\u70b9<\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3c7a9a53\"><strong>\u793a\u4f8b<\/strong>\uff1a\u82e5<code>Master_Log_File=mysql-bin.000005<\/code>\uff0c<code>Relay_Master_Log_File=mysql-bin.000004<\/code>\uff0c\u8bf4\u660e IO \u7ebf\u7a0b\u5df2\u8bfb\u53d6\u4e3b\u5e93\u6700\u65b0 Binlog\uff0c\u4f46 SQL \u7ebf\u7a0b\u4ecd\u5728\u5904\u7406\u65e7 Binlog\uff0c\u5b58\u5728\u5ef6\u8fdf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"H8APn\">3. \u9ad8\u6548\u65b9\u6848\uff1a\u57fa\u4e8e GTID \u7684\u4e8b\u52a1\u6570\u6821\u9a8c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub37720dd\">\u82e5\u5f00\u542f GTID\uff08\u5168\u5c40\u4e8b\u52a1\u6807\u8bc6\uff09\uff0c\u53ef\u901a\u8fc7\u5bf9\u6bd4<code>Retrieved_Gtid_Set<\/code>\uff08\u4ece\u5e93\u5df2\u83b7\u53d6\u7684 GTID \u96c6\u5408\uff09\u4e0e<code>Executed_Gtid_Set<\/code>\uff08\u4ece\u5e93\u5df2\u6267\u884c\u7684 GTID \u96c6\u5408\uff09\uff0c\u8ba1\u7b97\u5ef6\u8fdf\u7684\u4e8b\u52a1\u6570\uff0c\u7cbe\u5ea6\u66f4\u9ad8\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"uMais\">\u5b9e\u64cd\uff1aGTID \u5ef6\u8fdf\u68c0\u6d4b\u811a\u672c<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u5e768c33\">\u4ee5\u4e0b\u811a\u672c\u53ef\u6bcf\u79d2\u8f93\u51fa\u4ece\u5e93\u843d\u540e\u7684\u4e8b\u52a1\u6570\uff0c\u65e0\u9700\u67e5\u8be2\u4e1a\u52a1\u8868\uff0c\u9002\u5408\u751f\u4ea7\u73af\u5883\u76d1\u63a7\uff1a<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"ZZOBN\">\u6b65\u9aa4 1\uff1a\u521b\u5efa MySQL \u76d1\u63a7\u7528\u6237<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u2dc90661\">\u5728\u4e3b\u5e93\u6267\u884c\u547d\u4ee4\uff0c\u521b\u5efa\u6743\u9650\u6700\u5c0f\u5316\u7684\u76d1\u63a7\u7528\u6237<code>delay_check<\/code>\uff1a<\/p>\n\n\n\n<pre id=\"kyjtO\" class=\"wp-block-code\"><code>-- \u4e3b\u5e93\u6267\u884c\uff1a\u521b\u5efa\u7528\u6237\u5e76\u6388\u6743\uff08\u4ec5\u5141\u8bb8\u4ece\u5e93\u8bbf\u95ee\uff09\n\nCREATE USER 'delay_check'@'%' IDENTIFIED BY 'Yd_asdfa15';\n\nGRANT REPLICATION CLIENT ON *.* TO 'delay_check'@'%';\n\nFLUSH PRIVILEGES;<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"TFG6O\">\u6b65\u9aa4 2\uff1a\u7f16\u5199\u5ef6\u8fdf\u68c0\u6d4b\u811a\u672c<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uac76ab7b\">\u5728\u4ece\u5e93\u521b\u5efa\u811a\u672c<code>check_rel_delay.sh<\/code>\uff0c\u8def\u5f84\u4e3a<code>\/data\/script\/<\/code>\uff08\u6ce8\u610f\u4fee\u6b63 MySQL \u8fde\u63a5\u4fe1\u606f\uff09\uff1a<\/p>\n\n\n\n<pre id=\"ZPtsa\" class=\"wp-block-code\"><code>#!\/bin\/bash\n\n# MySQL GTID\u4e3b\u4ece\u5ef6\u8fdf\u68c0\u6d4b\u811a\u672c\uff1a\u6bcf\u79d2\u8f93\u51fa\u843d\u540e\u4e8b\u52a1\u6570\n\nMYSQL_USER=\"delay_check\"\n\nMYSQL_PASS=\"Yd_asdfa15\"\n\nMYSQL_HOST=\"192.168.184.152\"  # \u4ece\u5e93IP\n\nMYSQL_PORT=\"3306\"\n\nwhile true; do\n\n# \u83b7\u53d6Retrieved_Gtid_Set\u548cExecuted_Gtid_Set\u7684\u6700\u65b0\u4e8b\u52a1ID\n\nRETRIEVED=$(mysql -u${MYSQL_USER} -p${MYSQL_PASS} -h${MYSQL_HOST} -P${MYSQL_PORT} -N -e \"show slave status\\G\" | grep \"Retrieved_Gtid_Set\" | awk -F: '{print $3}' | awk -F- '{print $2}')\n\nEXECUTED=$(mysql -u${MYSQL_USER} -p${MYSQL_PASS} -h${MYSQL_HOST} -P${MYSQL_PORT} -N -e \"show slave status\\G\" | grep \"Executed_Gtid_Set\" | awk -F: '{print $3}' | awk -F- '{print $2}')\n\n\n\n# \u8ba1\u7b97\u843d\u540e\u4e8b\u52a1\u6570\n\nDELAY=$((RETRIEVED - EXECUTED))\n\necho \"$(date +'%Y-%m-%d %H:%M:%S') - \u4ece\u5e93\u843d\u540e\u4e3b\u5e93\u4e8b\u52a1\u6570\uff1a${DELAY}\"\n\n\n\nsleep 1  # \u6bcf\u79d2\u6267\u884c\u4e00\u6b21\n\ndone<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"uwEwG\">\u6b65\u9aa4 3\uff1a\u8fd0\u884c\u811a\u672c\u5e76\u9a8c\u8bc1<\/h5>\n\n\n\n<pre id=\"sJ3T0\" class=\"wp-block-code\"><code># \u8d4b\u4e88\u811a\u672c\u6267\u884c\u6743\u9650\n\nchmod +x \/data\/script\/check_rel_delay.sh\n\n# \u8fd0\u884c\u811a\u672c\n\nsh \/data\/script\/check_rel_delay.sh\n\n# \u53e6\u5f00\u7ec8\u7aef\uff0c\u4e3b\u5e93\u6267\u884c\u538b\u6d4b\u9a8c\u8bc1\n\ndrop database sysbench_db;\n\ncreate database sysbench_db;\n\nsysbench --db-driver=mysql  --mysql-host=192.168.184.151 --mysql-port=3306 --mysql-user='repl_rw' --mysql-password='Uda_dQc63' --mysql-db=sysbench_db --threads=4 --table_size=500000 --tables=4  --time=100  oltp_write_only prepare<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uec8650d6\">\u6b64\u65f6\u811a\u672c\u4f1a\u8f93\u51fa \u201c\u4ece\u5e93\u843d\u540e\u4e3b\u5e93\u4e8b\u52a1\u6570\u201d\uff0c\u538b\u6d4b\u671f\u95f4\u6570\u503c\u4f1a\u6301\u7eed\u589e\u52a0\uff0c\u538b\u6d4b\u7ed3\u675f\u540e\u9010\u6e10\u5f52 0\uff0c\u76f4\u89c2\u53cd\u6620\u5ef6\u8fdf\u53d8\u5316\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"xeptt\">\u4e09\u3001\u843d\u5730\u4f18\u5316\uff1a6 \u79cd\u4e3b\u4ece\u5ef6\u8fdf\u89e3\u51b3\u65b9\u6848<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uf938f796\">\u4f18\u5316\u4e3b\u4ece\u5ef6\u8fdf\u9700 \u201c\u5bf9\u75c7\u4e0b\u836f\u201d\uff0c\u7ed3\u5408\u5ef6\u8fdf\u539f\u56e0\u9009\u62e9\u65b9\u6848\uff0c\u4ee5\u4e0b\u662f\u53ef\u76f4\u63a5\u843d\u5730\u7684 6 \u79cd\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"RvbR9\">1. \u5f00\u542f\u591a\u7ebf\u7a0b\u590d\u5236\uff1a\u63d0\u5347\u4ece\u5e93\u56de\u653e\u6548\u7387<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u5dcc7362\">MySQL 5.6 \u53ca\u4ee5\u4e0a\u652f\u6301\u591a\u7ebf\u7a0b\u590d\u5236\uff08MTS\uff09\uff0c\u6838\u5fc3\u662f\u5c06 \u201c\u6309\u5e93 \/ \u6309\u4e8b\u52a1\u201d \u62c6\u5206\u7ebf\u7a0b\uff0c\u5e76\u884c\u56de\u653e Relay Log\uff0c\u5e94\u5bf9\u4e3b\u5e93\u9ad8\u5e76\u53d1\u573a\u666f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6309\u5e93\u5e76\u884c<\/strong>\uff08MySQL 5.6\uff09\uff1a<code>slave_parallel_type=DATABASE<\/code>\uff0c\u4e0d\u540c\u5e93\u7684\u4e8b\u52a1\u53ef\u5e76\u884c\u56de\u653e\uff1b<\/li>\n\n\n\n<li><strong>\u6309\u4e8b\u52a1\u5e76\u884c<\/strong>\uff08MySQL 5.7+\uff09\uff1a<code>slave_parallel_type=LOGICAL_CLOCK<\/code>\uff0c\u652f\u6301\u540c\u4e00\u5e93\u5185\u7b26\u5408\u6761\u4ef6\u7684\u4e8b\u52a1\u5e76\u884c\u56de\u653e\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6df6d30c\"><strong>\u914d\u7f6e\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<pre id=\"VgiuV\" class=\"wp-block-code\"><code># \u4ece\u5e93my.cnf\u914d\u7f6e\n\nslave_parallel_workers=4  # \u5e76\u884c\u7ebf\u7a0b\u6570\uff0c\u5efa\u8bae\u8bbe\u4e3aCPU\u6838\u6570\u76841~2\u500d\n\nslave_parallel_type=LOGICAL_CLOCK\n\nslave_preserve_commit_order=1  # \u4fdd\u8bc1\u4e8b\u52a1\u63d0\u4ea4\u987a\u5e8f\u4e0e\u4e3b\u5e93\u4e00\u81f4<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u8430d0fc\">\u914d\u7f6e\u540e\u91cd\u542f\u4ece\u5e93\u590d\u5236\u7ebf\u7a0b\uff1a<\/p>\n\n\n\n<pre id=\"dsvWq\" class=\"wp-block-code\"><code>stop slave sql_thread;\n\nstart slave sql_thread;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"wHtk9\">2. \u8c03\u6574 MySQL \u53c2\u6570\uff1a\u964d\u4f4e\u4ece\u5e93 IO \u538b\u529b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u1bd976fb\">\u901a\u8fc7\u8c03\u6574\u4ece\u5e93\u7684\u65e5\u5fd7\u5237\u76d8\u7b56\u7565\uff0c\u5e73\u8861 \u201c\u6027\u80fd\u201d \u4e0e \u201c\u5b89\u5168\u6027\u201d\uff0c\u4e34\u65f6\u7f13\u89e3\u5ef6\u8fdf\uff08\u6ce8\u610f\uff1a\u751f\u4ea7\u73af\u5883\u9700\u8bc4\u4f30\u6570\u636e\u5b89\u5168\u6027\uff09\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u53c2\u6570\u540d\u79f0<\/td><td>\u542b\u4e49<\/td><td>\u4f18\u5316\u5efa\u8bae<\/td><\/tr><tr><td>innodb_flush_log_at_trx_commit<\/td><td>\u63a7\u5236 redo log \u5237\u76d8\u7b56\u7565<\/td><td>\u4ece\u5e93\u53ef\u8bbe\u4e3a 0 \u6216 2\uff08\u9ed8\u8ba4 1\uff09\uff1a0 = \u6bcf\u79d2\u5237\u76d8\uff0c2 = \u4e8b\u52a1\u63d0\u4ea4\u5199 OS \u7f13\u5b58\uff0cOS \u5b9a\u671f\u5237\u76d8<\/td><\/tr><tr><td>sync_binlog<\/td><td>\u63a7\u5236 Binlog \u5237\u76d8\u7b56\u7565\uff08\u4ece\u5e93\u82e5\u4e0d\u751f\u6210 Binlog \u53ef\u5ffd\u7565\uff09<\/td><td>\u8bbe\u4e3a 100\uff08\u9ed8\u8ba4 1\uff09\uff1a\u6bcf 100 \u4e2a\u4e8b\u52a1\u5237\u76d8\u4e00\u6b21\uff0c\u51cf\u5c11 IO \u6b21\u6570<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u1bb916e7\"><strong>\u914d\u7f6e\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<pre id=\"dbvnI\" class=\"wp-block-code\"><code>-- \u4ece\u5e93\u4e34\u65f6\u8c03\u6574\uff08\u91cd\u542f\u5931\u6548\uff09\n\nset global innodb_flush_log_at_trx_commit=2;\n\nset global sync_binlog=100;\n\n-- \u6c38\u4e45\u751f\u6548\uff08\u9700\u4fee\u6539my.cnf\u5e76\u91cd\u542f\uff09\n\ninnodb_flush_log_at_trx_commit=2\n\nsync_binlog=100<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"AwPTY\">3. \u5347\u7ea7\u4ece\u5e93\u786c\u4ef6\uff1a\u89e3\u51b3 \u201c\u914d\u7f6e\u74f6\u9888\u201d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ud6762e5b\">\u82e5\u5ef6\u8fdf\u7531\u4ece\u5e93\u786c\u4ef6\u4e0d\u8db3\u5bfc\u81f4\uff0c\u9700\u9488\u5bf9\u6027\u5347\u7ea7\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CPU<\/strong>\uff1a\u591a\u7ebf\u7a0b\u590d\u5236\u4f9d\u8d56 CPU\uff0c\u5efa\u8bae\u5347\u7ea7\u4e3a\u4e0e\u4e3b\u5e93\u540c\u89c4\u683c\u7684 CPU\uff1b<\/li>\n\n\n\n<li><strong>\u5185\u5b58<\/strong>\uff1a\u589e\u5927 innodb_buffer_pool_size\uff0c\u51cf\u5c11\u78c1\u76d8 IO\uff08\u5efa\u8bae\u8bbe\u4e3a\u7269\u7406\u5185\u5b58\u7684 50%~70%\uff09\uff1b<\/li>\n\n\n\n<li><strong>\u78c1\u76d8<\/strong>\uff1a\u5c06\u4ece\u5e93\u78c1\u76d8\u66ff\u6362\u4e3a SSD\uff0c\u63d0\u5347 Relay Log \u56de\u653e\u7684 IO \u901f\u5ea6\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"nFrAS\">4. \u62c6\u5206\u5927\u4e8b\u52a1\uff1a\u907f\u514d \u201c\u963b\u585e\u94fe\u201d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u98572864\">\u5927\u4e8b\u52a1\u662f\u5ef6\u8fdf\u7684 \u201c\u9690\u5f62\u6740\u624b\u201d\uff0c\u9700\u4ece\u6e90\u5934\u89c4\u8303\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u62c6\u5206\u539f\u5219<\/strong>\uff1a\u5c06\u5355\u6b21\u64cd\u4f5c\u6570\u636e\u91cf\u63a7\u5236\u5728 1 \u4e07\u884c\u4ee5\u5185\uff0c\u5982\u6279\u91cf\u63d2\u5165 100 \u4e07\u884c\u6570\u636e\uff0c\u62c6\u5206\u4e3a 100 \u6b21 \u201c\u6bcf\u6b21\u63d2\u5165 1 \u4e07\u884c\u201d\uff1b<\/li>\n\n\n\n<li><strong>\u793a\u4f8b\u4f18\u5316<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"Arv9Y\" class=\"wp-block-code\"><code>-- \u4f18\u5316\u524d\uff1a\u5927\u4e8b\u52a1\uff08\u5355\u6b21\u63d2\u5165100\u4e07\u884c\uff09\n\ninsert into sbtest1(k,c,pad) select k,c,pad from sbtest1;\n\n-- \u4f18\u5316\u540e\uff1a\u62c6\u5206\u5c0f\u4e8b\u52a1\uff08\u7528\u5faa\u73af\u6bcf\u6b21\u63d2\u51651\u4e07\u884c\uff09\n\nDELIMITER \/\/\n\nCREATE PROCEDURE batch_insert()\n\nBEGIN\n\n   DECLARE i INT DEFAULT 0;\n\n   WHILE i &lt; 100 DO\n\n       insert into sbtest1(k,c,pad) select k,c,pad from sbtest1 limit 10000;\n\n       COMMIT;\n\n       SET i = i + 1;\n\n   END WHILE;\n\nEND \/\/\n\nDELIMITER ;\n\nCALL batch_insert();<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"gDf0s\">5. \u7528 PT \u5de5\u5177\u5904\u7406\u5927\u8868 DDL\uff1a\u907f\u514d\u9501\u8868\u5ef6\u8fdf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u74929c37\">Percona Toolkit \u7684<code>pt-online-schema-change<\/code>\u5de5\u5177\u53ef\u5b9e\u73b0 \u201c\u65e0\u9501 DDL\u201d\uff0c\u539f\u7406\u662f \u201c\u521b\u5efa\u4e34\u65f6\u8868\u2192\u589e\u91cf\u540c\u6b65\u6570\u636e\u2192\u5207\u6362\u8868\u540d\u2192\u5220\u9664\u539f\u8868\u201d\uff0c\u907f\u514d\u4e3b\u4ece\u5ef6\u8fdf\uff1a<\/p>\n\n\n\n<pre id=\"khggq\" class=\"wp-block-code\"><code># \u793a\u4f8b\uff1a\u7ed9sbtest1\u8868\u6dfb\u52a0\u5217d\uff08\u65e0\u9501\uff09\n\npt-online-schema-change D=sysbench_db,t=sbtest1 --alter=\"add column d char(10) after c\" -u repl_rw -p Uda_dQc63 -h 192.168.184.151 --port 3306 --execute<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"QQW36\">6. \u8c03\u6574\u67b6\u6784\uff1a\u9488\u5bf9\u6027\u5206\u6d41<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u36242c27\">\u82e5\u5ef6\u8fdf\u7531\u67d0\u5f20\u5927\u8868\uff08\u5982\u5386\u53f2\u8ba2\u5355\u8868\uff09\u5bfc\u81f4\uff0c\u4e14\u4e1a\u52a1\u8bfb\u8bf7\u6c42\u4e0d\u4f9d\u8d56\u8be5\u8868\uff0c\u53ef\u91c7\u7528 \u201c\u62c6\u5206\u4ece\u5e93\u201d \u65b9\u6848\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u65b0\u589e 1 \u4e2a \u201c\u5927\u8868\u4e13\u7528\u4ece\u5e93\u201d\uff0c\u4ec5\u540c\u6b65\u8be5\u5927\u8868\uff1b<\/li>\n\n\n\n<li>\u539f\u4ece\u5e93\u901a\u8fc7<code>replicate-wild-ignore-table=sysbench_db.sbtest1<\/code>\u5ffd\u7565\u8be5\u5927\u8868\uff1b<\/li>\n\n\n\n<li>\u4e1a\u52a1\u8bfb\u8bf7\u6c42\u8def\u7531\u5230\u539f\u4ece\u5e93\uff0c\u5927\u8868\u67e5\u8be2\u8def\u7531\u5230 \u201c\u4e13\u7528\u4ece\u5e93\u201d\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u90847d28\">\u901a\u8fc7\u67b6\u6784\u8c03\u6574\uff0c\u539f\u4ece\u5e93\u53ef\u5f7b\u5e95\u6446\u8131\u5927\u8868\u540c\u6b65\u7684\u5ef6\u8fdf\u5f71\u54cd\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"GKELo\">\u56db\u3001\u603b\u7ed3\uff1a\u4e3b\u4ece\u5ef6\u8fdf\u5904\u7406\u7684\u6838\u5fc3\u539f\u5219<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uc97ef201\">\u4e3b\u4ece\u590d\u5236\u5ef6\u8fdf\u5e76\u975e \u201c\u4e00\u5200\u5207\u201d \u95ee\u9898\uff0c\u9700\u9075\u5faa \u201c\u5148\u5b9a\u4f4d\u539f\u56e0\u2192\u518d\u9009\u62e9\u65b9\u6848\u2192\u6700\u540e\u9a8c\u8bc1\u6548\u679c\u201d \u7684\u6d41\u7a0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u539f\u56e0\u4f18\u5148<\/strong>\uff1a\u7528 GTID \u811a\u672c\u6216\u4f4d\u70b9\u5bf9\u6bd4\u7cbe\u51c6\u5b9a\u4f4d\u5ef6\u8fdf\u6839\u6e90\uff08\u5982\u5e76\u53d1\u9ad8\u3001\u5927\u4e8b\u52a1\u3001\u786c\u4ef6\u5dee\uff09\uff1b<\/li>\n\n\n\n<li><strong>\u5e73\u8861\u53d6\u820d<\/strong>\uff1a\u4f18\u5316\u65f6\u9700\u5e73\u8861 \u201c\u6027\u80fd\u201d \u4e0e \u201c\u6570\u636e\u5b89\u5168\u6027\u201d\uff08\u5982\u8c03\u6574\u5237\u76d8\u53c2\u6570\u9700\u8bc4\u4f30\u98ce\u9669\uff09\uff1b<\/li>\n\n\n\n<li><strong>\u957f\u671f\u89c4\u8303<\/strong>\uff1a\u4ece\u4e1a\u52a1\u5c42\uff08\u62c6\u5206\u5927\u4e8b\u52a1\uff09\u3001\u8fd0\u7ef4\u5c42\uff08\u4f4e\u5cf0\u671f DDL\uff09\u3001\u67b6\u6784\u5c42\uff08\u591a\u7ebf\u7a0b\u590d\u5236\uff09\u5efa\u7acb\u957f\u671f\u673a\u5236\uff0c\u51cf\u5c11\u5ef6\u8fdf\u53d1\u751f\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6e7b0078\">\u638c\u63e1\u4ee5\u4e0a\u65b9\u6cd5\uff0c\u53ef\u6709\u6548\u5e94\u5bf9 MySQL \u4e3b\u4ece\u590d\u5236\u5ef6\u8fdf\uff0c\u4fdd\u969c\u4e1a\u52a1\u6570\u636e\u7684\u4e00\u81f4\u6027\u4e0e\u53ef\u7528\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540e\u7eed\u6211\u4f1a\u6301\u7eed\u66f4\u65b0 MySQL \u4e3b\u4ece\u3001\u6027\u80fd\u4f18\u5316\u3001\u8fd0\u7ef4\u5b9e\u6218\u5e72\u8d27\uff0c\u6b22\u8fce\u5173\u6ce8<strong>\u4e91\u626c\u306e Blog<\/strong>\uff0c\u4e00\u8d77\u4ea4\u6d41\u8fdb\u6b65\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 MySQL \u4e3b\u4ece\u67b6\u6784\u7684\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u4e3b\u4ece\u590d\u5236\u5ef6\u8fdf\u662f\u6700\u5e38\u89c1\u3001\u6700\u5f71\u54cd\u4e1a\u52a1\u7a33\u5b9a\u6027\u7684\u95ee\u9898\u4e4b\u4e00\u3002\u8f7b\u5219\u5bfc\u81f4\u8bfb\u5199\u5206\u79bb\u540e\u6570\u636e<\/p>\n<div class=\"more-link\">\n\t\t\t\t <a href=\"https:\/\/yunyanglib.cn\/?p=798\" class=\"link-btn theme-btn\"><span>Read More <\/span> <i class=\"fa fa-caret-right\"><\/i><\/a>\n\t\t\t<\/div>\n","protected":false},"author":1,"featured_media":804,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[16],"class_list":["post-798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql","tag-mysql"],"_links":{"self":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=798"}],"version-history":[{"count":3,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/798\/revisions"}],"predecessor-version":[{"id":803,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/798\/revisions\/803"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/media\/804"}],"wp:attachment":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}