{"id":1083,"date":"2026-03-25T09:15:07","date_gmt":"2026-03-25T01:15:07","guid":{"rendered":"https:\/\/yunyanglib.cn\/?p=1083"},"modified":"2026-04-09T18:03:57","modified_gmt":"2026-04-09T10:03:57","slug":"%e3%80%90mysql%e3%80%91pt-query-digest-%e5%85%a8%e9%9d%a2%e8%a7%a3%e6%9e%90%ef%bc%9a%e4%bb%8e%e5%ae%89%e8%a3%85%e5%88%b0%e5%ae%9e%e6%88%98%e7%9a%84%e6%85%a2%e6%9f%a5%e8%af%a2%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/yunyanglib.cn\/?p=1083","title":{"rendered":"\u3010MySQL\u3011pt-query-digest \u5168\u9762\u89e3\u6790\uff1a\u4ece\u5b89\u88c5\u5230\u5b9e\u6218\u7684\u6162\u67e5\u8be2\u4f18\u5316\u6307\u5357"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u4f5c\u4e3a\u6570\u636e\u5e93\u8fd0\u7ef4\u7684\u6838\u5fc3\u5de5\u5177\uff0cpt-query-digest \u51ed\u501f\u5f3a\u5927\u7684\u6162\u67e5\u8be2\u805a\u5408\u5206\u6790\u80fd\u529b\uff0c\u6210\u4e3a\u6211\u65e5\u5e38\u6392\u67e5 MySQL \u6027\u80fd\u95ee\u9898\u7684 \u201c\u5de6\u624b\u5251\u201d\u3002\u672c\u6587\u5c06\u4ece\u5b89\u88c5\u914d\u7f6e\u3001\u6838\u5fc3\u539f\u7406\u3001\u5b9e\u6218\u573a\u666f\u5230\u907f\u5751\u6307\u5357\uff0c\u5e26\u4f60\u5f7b\u5e95\u638c\u63e1\u8fd9\u4e2a\u5de5\u5177\u7684\u7528\u6cd5\uff0c\u8ba9\u6162\u67e5\u8be2\u4f18\u5316\u4e0d\u518d\u76f2\u76ee\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u524d\u7f6e\u51c6\u5907\uff1a\u5b89\u88c5\u4e0e\u73af\u5883\u6821\u9a8c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1.1 \u5feb\u901f\u5b89\u88c5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">pt-query-digest \u662f Percona Toolkit \u7684\u6838\u5fc3\u7ec4\u4ef6\uff0c\u63a8\u8350\u76f4\u63a5\u5b89\u88c5\u5b8c\u6574\u5de5\u5177\u5305\uff08\u81ea\u52a8\u89e3\u51b3\u4f9d\u8d56\u95ee\u9898\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># 1. \u4e0b\u8f7drpm\u5305\nwget https:\/\/downloads.percona.com\/downloads\/percona-toolkit\/3.5.4\/binary\/redhat\/7\/x86_64\/percona-toolkit-3.5.4-2.el7.x86_64.rpm\n\n# 2. \u5b89\u88c5\uff08\u4f9d\u8d56yum\u81ea\u52a8\u89e3\u51b3\uff09\nyum install percona-toolkit-3.5.4-2.el7.x86_64.rpm -y\n\n# \u9a8c\u8bc1\u5b89\u88c5\u6210\u529f\npt-query-digest --version  # \u8f93\u51fa\u7248\u672c\u53f7\u5373\u6b63\u5e38<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1013\" height=\"99\" src=\"https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/03\/image-46.png\" alt=\"\" class=\"wp-image-1085\" srcset=\"https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/03\/image-46.png 1013w, https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/03\/image-46-300x29.png 300w, https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/03\/image-46-768x75.png 768w\" sizes=\"(max-width: 1013px) 100vw, 1013px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">1.2 \u6162\u67e5\u8be2\u65e5\u5fd7\u914d\u7f6e\uff08\u5173\u952e\u524d\u63d0\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528\u524d\u9700\u786e\u4fdd MySQL \u5df2\u5f00\u542f\u6162\u67e5\u8be2\u65e5\u5fd7\uff0c\u6267\u884c\u4ee5\u4e0b SQL \u6821\u9a8c\u914d\u7f6e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>show global variables like \"%slow_query%\";\nshow global variables like \"long_query_time\";\nshow global variables like \"log_output\";<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"563\" src=\"https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/03\/image-47-1024x563.png\" alt=\"\" class=\"wp-image-1086\" srcset=\"https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/03\/image-47-1024x563.png 1024w, https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/03\/image-47-300x165.png 300w, https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/03\/image-47-768x422.png 768w, https:\/\/yunyanglib.cn\/wp-content\/uploads\/2026\/03\/image-47.png 1029w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6838\u5fc3\u914d\u7f6e\u8981\u6c42<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>slow_query_log = ON<\/code>\uff08\u5fc5\u987b\u5f00\u542f\uff09<\/li>\n\n\n\n<li><code>long_query_time \u2264 1<\/code>\uff08\u5efa\u8bae\u9608\u503c\u8bbe\u4e3a 1 \u79d2\uff0c\u9ed8\u8ba4 10 \u79d2\u592a\u5bbd\u677e\uff09<\/li>\n\n\n\n<li><code>log_output = FILE<\/code>\uff08\u8f93\u51fa\u4e3a\u6587\u4ef6\u683c\u5f0f\uff0cpt-query-digest \u4e0d\u652f\u6301\u8868\u5b58\u50a8\uff09<\/li>\n\n\n\n<li><code>slow_query_log_file<\/code> \u8def\u5f84\u9700\u786e\u4fdd MySQL \u8fdb\u7a0b\u6709\u5199\u6743\u9650<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4e34\u65f6\u751f\u6548\u914d\u7f6e<\/strong>\uff08\u91cd\u542f\u540e\u5931\u6548\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SET GLOBAL slow_query_log = ON;\nSET GLOBAL long_query_time = 1;\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6c38\u4e45\u751f\u6548<\/strong>\uff1a\u4fee\u6539 my.cnf \u914d\u7f6e\u6587\u4ef6\uff08\u91cd\u542f MySQL\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;mysqld]\nslow_query_log = ON\nslow_query_log_file = \/data\/mysql\/log\/mysql-slow.log\nlong_query_time = 1\nlog_output = FILE\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u6838\u5fc3\u539f\u7406\uff1aSQL \u6307\u7eb9\u4e0e\u805a\u5408\u903b\u8f91<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 \u4ec0\u4e48\u662f SQL \u6307\u7eb9\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u662f pt-query-digest \u7684\u6838\u5fc3\u8bbe\u8ba1\uff1a\u5c06\u8bed\u4e49\u76f8\u540c\u3001\u53c2\u6570\u4e0d\u540c\u7684 SQL\uff0c\u901a\u8fc7\u66ff\u6362\u53d8\u91cf\u4e3a\u5360\u4f4d\u7b26\uff08<code>?<\/code>\uff09\u751f\u6210\u7edf\u4e00\u6a21\u677f\uff0c\u5b9e\u73b0\u540c\u7c7b\u67e5\u8be2\u805a\u5408\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u59cb SQL\uff1a<code>select * from user where id=1<\/code> \/ <code>select * from user where id=2<\/code><\/li>\n\n\n\n<li>\u751f\u6210\u6307\u7eb9\uff1a<code>select * from user where id=?<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u6307\u7eb9\u805a\u5408\uff0c\u80fd\u5feb\u901f\u5b9a\u4f4d \u201c\u9ad8\u9891\u6162\u67e5\u8be2\u201d \u6216 \u201c\u5355\u6b21\u8017\u65f6\u6781\u957f\u201d \u7684\u6838\u5fc3\u95ee\u9898\uff0c\u907f\u514d\u88ab\u6d77\u91cf\u91cd\u590d SQL \u6df9\u6ca1\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 \u5206\u6790\u6d41\u7a0b\u62c6\u89e3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8bfb\u53d6\u65e5\u5fd7\u6587\u4ef6\uff08\u6162\u67e5\u8be2 \/ Binlog \/ General Log\uff09<\/li>\n\n\n\n<li>\u89e3\u6790 SQL \u8bed\u53e5\u5e76\u751f\u6210\u6307\u7eb9<\/li>\n\n\n\n<li>\u6309\u603b\u54cd\u5e94\u65f6\u95f4\u6392\u5e8f\uff08\u9ed8\u8ba4\u89c4\u5219\uff09<\/li>\n\n\n\n<li>\u8ba1\u7b97\u5173\u952e\u6307\u6807\uff08\u6267\u884c\u6b21\u6570\u3001\u5e73\u5747\u8017\u65f6\u3001\u5360\u6bd4\u7b49\uff09<\/li>\n\n\n\n<li>\u8f93\u51fa\u7ed3\u6784\u5316\u62a5\u544a<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u57fa\u7840\u5b9e\u6218\uff1a\u6162\u67e5\u8be2\u5206\u6790\u4e09\u6b65\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6b65\u9aa4 1\uff1a\u751f\u6210\u5206\u6790\u62a5\u544a<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># \u57fa\u7840\u7528\u6cd5\uff1a\u5206\u6790\u6162\u67e5\u8be2\u65e5\u5fd7\u5e76\u8f93\u51fa\u5230\u6587\u4ef6\npt-query-digest \/data\/mysql\/log\/mysql-slow.log &gt; slow_query_report.log\n\n# \u8fdb\u9636\u7528\u6cd5\uff1a\u53ea\u4fdd\u7559\u524d20\u6761\u5173\u952eSQL\uff0c\u6309\u6307\u7eb9\u805a\u5408\npt-query-digest --group-by fingerprint --limit 20 \/data\/mysql\/log\/mysql-slow.log &gt; top20_slow.log\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u6b65\u9aa4 2\uff1a\u89e3\u8bfb\u62a5\u544a\u6838\u5fc3\u6307\u6807<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6253\u5f00\u62a5\u544a\u6587\u4ef6\u540e\uff0c\u91cd\u70b9\u5173\u6ce8 4 \u4e2a\u6a21\u5757\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u6a21\u5757<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5173\u952e\u4fe1\u606f<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u89e3\u8bfb\u8981\u70b9<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5de5\u5177\u6267\u884c\u4fe1\u606f<\/td><td class=\"has-text-align-left\" data-align=\"left\"><code>user time<\/code>\uff1a\u5de5\u5177\u6267\u884c\u6d88\u8017\u7684 CPU \u65f6\u95f4\uff1b<br><code>system time<\/code>\uff1a\u5de5\u5177\u5728\u7cfb\u7edf\u5185\u6838\u6001\u6d88\u8017\u7684\u65f6\u95f4\uff1b<br><code>rss<\/code>\uff1a\u5de5\u5177\u8fdb\u7a0b\u5360\u7528\u7684\u7269\u7406\u5185\u5b58\u5927\u5c0f\uff1b<br><code>vsz<\/code>\uff1a\u5de5\u5177\u8fdb\u7a0b\u5360\u7528\u7684\u865a\u62df\u5185\u5b58\u5927\u5c0f\uff1b<br><code>Current date<\/code>\uff1a\u5206\u6790\u6267\u884c\u7684\u65f6\u95f4\uff1b<br><code>Hostname<\/code>\uff1a\u6267\u884c\u5206\u6790\u7684\u670d\u52a1\u5668\u540d\u79f0\uff1b<br><code>File<\/code>\uff1a\u5f85\u5206\u6790\u7684\u6162\u67e5\u8be2\u65e5\u5fd7\u8def\u5f84\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u9a8c\u8bc1\u5de5\u5177\u8fd0\u884c\u6b63\u5e38\uff08\u65e0\u62a5\u9519\uff09<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u603b\u4f53\u7edf\u8ba1\uff08Overall\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\"><code>total<\/code>\uff1a\u6162\u67e5\u8be2\u603b\u6570\uff1b<br><code>unique<\/code>\uff1a\u4e0d\u540c SQL \u6307\u7eb9\u7684\u6570\u91cf\uff08\u5373\u4e0d\u540c\u7c7b\u578b\u7684\u6162\u67e5\u8be2\uff09\uff1b<br><code>QPS<\/code>\uff1a\u6bcf\u79d2\u5e73\u5747\u6162\u67e5\u8be2\u91cf\uff1b<br><code>concurrency<\/code>\uff1a\u6162\u67e5\u8be2\u7684\u5e73\u5747\u5e76\u53d1\u6570\uff1b<br><code>Time range<\/code>\uff1a\u6162\u67e5\u8be2\u65e5\u5fd7\u8986\u76d6\u7684\u65f6\u95f4\u8303\u56f4\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5feb\u901f\u5224\u65ad\u6162\u67e5\u8be2\u89c4\u6a21<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u6162\u67e5\u8be2\u6392\u884c\uff08Rank\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\"><code>Rank<\/code>\uff1a\u6392\u540d\uff08\u6570\u5b57\u8d8a\u5c0f\u5f71\u54cd\u8d8a\u5927\uff09\uff1b<br><code>Response<\/code>\uff1a\u8be5\u7c7b\u67e5\u8be2\u7684\u603b\u54cd\u5e94\u65f6\u95f4\uff1b<br><code>time<\/code>\uff1a\u8be5\u7c7b\u67e5\u8be2\u5360\u6240\u6709\u6162\u67e5\u8be2\u603b\u65f6\u95f4\u7684\u767e\u5206\u6bd4\uff1b<br><code>Calls<\/code>\uff1a\u8be5\u7c7b\u67e5\u8be2\u7684\u6267\u884c\u6b21\u6570\uff1b<br><code>R\/Call<\/code>\uff1a\u8be5\u7c7b\u67e5\u8be2\u7684\u5e73\u5747\u6bcf\u6b21\u54cd\u5e94\u65f6\u95f4\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4f18\u5148\u4f18\u5316 Time% &gt; 10% \u4e14 \u5355\u6b21\u8017\u65f6 &gt; 500ms \u7684 SQL<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5355\u6761 SQL \u8be6\u60c5<\/td><td class=\"has-text-align-left\" data-align=\"left\"><code>Databases<\/code>\uff1a\u6267\u884c\u8be5\u67e5\u8be2\u7684\u6570\u636e\u5e93\u540d\uff1b<br><code>Hosts<\/code>\uff1a\u53d1\u8d77\u67e5\u8be2\u7684\u5ba2\u6237\u7aef IP\uff1b<br><code>Users<\/code>\uff1a\u6267\u884c\u67e5\u8be2\u7684 MySQL \u7528\u6237\u540d\uff1b<br><code>Query_time distribution<\/code>\uff1a\u67e5\u8be2\u65f6\u95f4\u5206\u5e03\uff08\u5982\u201c\u4e3b\u8981\u96c6\u4e2d\u5728 10s+\u201d\uff0c\u8bf4\u660e\u67e5\u8be2\u5ef6\u8fdf\u4e25\u91cd\uff09\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5b9a\u4f4d\u74f6\u9888\uff08\u5168\u8868\u626b\u63cf \/ \u9501\u7b49\u5f85\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udccc \u5b9e\u6218\u6280\u5de7\uff1a\u62a5\u544a\u4e2d <code># Query_time distribution<\/code> \u5b57\u6bb5\u80fd\u5feb\u901f\u5224\u65ad\u5ef6\u8fdf\u5206\u5e03\uff0c\u82e5\u663e\u793a <code>10s+<\/code> \u5360\u6bd4\u9ad8\uff0c\u8bf4\u660e\u5b58\u5728\u4e25\u91cd\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u6b65\u9aa4 3\uff1a\u843d\u5730\u4f18\u5316<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e\u62a5\u544a\u5b9a\u4f4d\u7684 SQL\uff0c\u4f18\u5148\u91c7\u53d6\u4ee5\u4e0b\u4f18\u5316\u624b\u6bb5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7ed9\u8fc7\u6ee4\u6761\u4ef6\u5b57\u6bb5\u52a0\u7d22\u5f15\uff08\u6700\u5e38\u7528\uff09<\/li>\n\n\n\n<li>\u4f18\u5316 JOIN \u903b\u8f91\uff0c\u907f\u514d\u7b1b\u5361\u5c14\u79ef<\/li>\n\n\n\n<li>\u62c6\u5206\u5927\u4e8b\u52a1\uff0c\u51cf\u5c11\u9501\u6301\u6709\u65f6\u95f4<\/li>\n\n\n\n<li>\u8c03\u6574 SQL \u5199\u6cd5\uff08\u5982\u7528 IN \u4ee3\u66ff OR\uff0c\u907f\u514d SELECT *\uff09<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u9ad8\u9891\u573a\u666f\uff1a6 \u4e2a\u5b9e\u7528\u547d\u4ee4\u6a21\u677f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u573a\u666f 1\uff1a\u5206\u6790\u8fd1 24 \u5c0f\u65f6\u7684\u65b0\u589e\u6162\u67e5\u8be2<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>pt-query-digest --since=24h \/data\/mysql\/log\/mysql-slow.log &gt; last24h_slow.log<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u573a\u666f 2\uff1a\u7cbe\u51c6\u5206\u6790\u6307\u5b9a\u65f6\u95f4\u8303\u56f4<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>pt-query-digest \/data\/mysql\/log\/mysql-slow.log \\\n--since '2026-03-13 08:00:00' \\\n--until '2026-03-13 18:00:00' \\\n&gt; worktime_slow.log<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u573a\u666f 3\uff1a\u8fc7\u6ee4\u7279\u5b9a\u7528\u6237\u7684\u6162\u67e5\u8be2<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># \u5206\u6790\u7528\u6237maria\u7684\u6240\u6709\u6162\u67e5\u8be2\npt-query-digest --filter '($event-&gt;{user} || \"\") =~ m\/^maria\/i' \\\n\/data\/mysql\/log\/mysql-slow.log &gt; maria_slow.log\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u573a\u666f 4\uff1a\u5206\u6790 Binlog \u4e2d\u7684\u5199\u64cd\u4f5c\u6027\u80fd<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># 1. \u5148\u89e3\u6790Binlog\u4e3a\u6587\u672c\u683c\u5f0f\nmysqlbinlog \/data\/mysql\/binlog\/mysql-bin.000031 -vv &gt; binlog.txt\n\n# 2. \u5206\u6790\u5199\u64cd\u4f5c\uff08insert\/update\/delete\uff09\npt-query-digest --type=binlog binlog.txt &gt; binlog_slow.log\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u573a\u666f 5\uff1a\u5c06\u7ed3\u679c\u5b58\u50a8\u5230 MySQL \u957f\u671f\u8ddf\u8e2a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u82e5\u9700\u8981\u957f\u671f\u8ddf\u8e2a\u6162\u67e5\u8be2\u53d8\u5316\uff08\u5982\u5bf9\u6bd4\u6bcf\u5468\u7684\u6162\u67e5\u8be2\u8d8b\u52bf\uff09\uff0c\u53ef\u5c06\u5206\u6790\u7ed3\u679c\u5b58\u50a8\u5230 MySQL \u8868\u4e2d\uff0c\u65b9\u4fbf\u540e\u7eed\u67e5\u8be2\u4e0e\u7edf\u8ba1\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u6b65\u9aa4 1\uff1a\u521b\u5efa\u5b58\u50a8\u7ed3\u679c\u7684\u6570\u636e\u5e93\u4e0e\u7528\u6237<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code># 1. \u521b\u5efa\u6570\u636e\u5e93 slow_log\uff08\u7528\u4e8e\u5b58\u50a8\u6162\u67e5\u8be2\u5206\u6790\u7ed3\u679c\uff09\nCREATE DATABASE slow_log;\n\n# 2. \u521b\u5efa\u7528\u6237 slowlog_rw\uff08\u4ec5\u8d4b\u4e88 slow_log \u5e93\u7684\u6743\u9650\uff0c\u9075\u5faa\u6700\u5c0f\u6743\u9650\u539f\u5219\uff09\nCREATE USER 'slowlog_rw'@'localhost' IDENTIFIED WITH MYSQL_NATIVE_PASSWORD BY 'Ud81Gdac_a';\nGRANT ALL ON slow_log.* TO 'slowlog_rw'@'localhost';<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u6b65\u9aa4 2\uff1a\u6267\u884c\u5206\u6790\u5e76\u5b58\u50a8\u7ed3\u679c<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>pt-query-digest \\\n--user=slowlog_rw --password=Ud81Gdac_a -S \/tmp\/mysql.sock \\\n--review D=slow_log,t=global_query_review \\\n--history D=slow_log,t=global_query_review_history \\\n\/data\/mysql\/log\/mysql-slow.log<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u6b65\u9aa4 3\uff1a\u67e5\u8be2\u5b58\u50a8\u7684\u7ed3\u679c<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u767b\u5f55 MySQL \u540e\uff0c\u53ef\u76f4\u63a5\u67e5\u8be2\u4e24\u5f20\u7ed3\u679c\u8868\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u67e5\u770b\u7b80\u5355\u6162\u67e5\u8be2\u7edf\u8ba1\uff08SQL \u6307\u7eb9\u3001\u6267\u884c\u6b21\u6570\u3001\u5e73\u5747\u54cd\u5e94\u65f6\u95f4\u7b49\uff09\nSELECT * FROM slow_log.global_query_review;\n\n# \u67e5\u770b\u8be6\u7ec6\u6162\u67e5\u8be2\u8bb0\u5f55\uff08\u6bcf\u6b21\u67e5\u8be2\u7684\u5177\u4f53\u65f6\u95f4\u3001\u5ba2\u6237\u7aef IP \u7b49\uff09\nSELECT * FROM slow_log.global_query_review_history;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u573a\u666f 6\uff1a\u751f\u6210 MySQL\u6162\u67e5\u8be2\u90ae\u4ef6\u62a5\u8868\uff08\u9700\u4e8c\u6b21\u5f00\u53d1\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># \u7ed3\u5408golang\u5de5\u5177\u751f\u6210MySQL\u6162\u67e5\u8be2\u90ae\u4ef6\u62a5\u8868\uff08\u63a8\u8350\u65b9\u6848\uff09\ngit clone https:\/\/github.com\/wangtuo1224\/mysql_slowlog_report.git\ncd mysql_slowlog_report\ngo build\n.\/mysql_slowlog_report --slow-log.path=\/data\/mysql\/log\/mysql-slow.log --limit=10\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u907f\u5751\u6307\u5357\uff1a80% \u8fd0\u7ef4\u4f1a\u8e29\u7684 5 \u4e2a\u5751<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5751 1\uff1a\u5206\u6790\u7ed3\u679c\u4e3a\u7a7a\u6216\u504f\u5c11<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u56e0\uff1a\u65e5\u5fd7\u683c\u5f0f\u4e0d\u517c\u5bb9\uff08\u5982 <code>log_output=TABLE<\/code> \u5bfc\u51fa\u7684 CSV \u6587\u4ef6\uff09<\/li>\n\n\n\n<li>\u89e3\u51b3\uff1a\u786e\u4fdd\u65e5\u5fd7\u662f\u6807\u51c6\u6587\u4ef6\u683c\u5f0f\uff0cCSV \u9700\u5148\u8f6c\u6362\u4e3a\u6587\u672c\u683c\u5f0f<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5751 2\uff1aMySQL 8.0 \u65e5\u5fd7\u89e3\u6790\u5931\u8d25<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u56e0\uff1a8.0 \u9ed8\u8ba4\u65f6\u95f4\u6233\u5e26\u5fae\u79d2\uff08<code># Time: 2026-03-13T10:00:00.123456<\/code>\uff09\uff0c\u8001\u7248\u672c\u5de5\u5177\u4e0d\u652f\u6301<\/li>\n\n\n\n<li>\u89e3\u51b3\uff1a\u5347\u7ea7 pt-query-digest \u5230 3.5.0+\uff0c\u6216\u4e34\u65f6\u5173\u95ed\u5fae\u79d2\u8f93\u51fa\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;mysqld]\nlog-slow-verbosity=standard  # MySQL 8.0.26+\u652f\u6301<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5751 3\uff1a\u540c\u7c7b SQL \u672a\u805a\u5408<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u56e0\uff1a\u672a\u52a0 <code>--group-by fingerprint<\/code> \u53c2\u6570<\/li>\n\n\n\n<li>\u89e3\u51b3\uff1a\u6267\u884c\u547d\u4ee4\u65f6\u663e\u5f0f\u6307\u5b9a\u805a\u5408\u89c4\u5219<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5751 4\uff1a\u4e2d\u6587\u4e71\u7801<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u56e0\uff1apt-query-digest \u9ed8\u8ba4\u4e0d\u5904\u7406 UTF-8 \u7f16\u7801<\/li>\n\n\n\n<li>\u89e3\u51b3\uff1a\u4fee\u6539\u5de5\u5177\u6e90\u7801\uff08CentOS \u8def\u5f84 <code>\/usr\/bin\/pt-query-digest<\/code>\uff09\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code># \u7b2c9\u884c\u65b0\u589e\nuse Encode;\n# \u7b2c8188\u884c\u4fee\u6539\n# return $json;\nreturn Encode::decode_utf8($json);<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5751 5\uff1aGeneral Log \u5206\u6790\u5361\u6b7b<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u56e0\uff1a\u901a\u7528\u65e5\u5fd7\u4f53\u79ef\u8fc7\u5927\uff08\u8bb0\u5f55\u6240\u6709\u64cd\u4f5c\uff09<\/li>\n\n\n\n<li>\u89e3\u51b3\uff1a\u4ec5\u5728\u6392\u67e5\u7279\u5b9a\u95ee\u9898\u65f6\u4e34\u65f6\u5f00\u542f\uff0c\u5206\u6790\u65f6\u52a0\u65f6\u95f4\u8fc7\u6ee4\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>pt-query-digest --type=genlog --since=1h \/data\/mysql\/log\/mysql-general.log &gt; genlog_slow.log<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u8fdb\u9636\u6280\u5de7\uff1a\u81ea\u5b9a\u4e49\u5206\u6790\u7ef4\u5ea6<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">6.1 \u8ba1\u7b97\u884c\u626b\u63cf\u6548\u7387\uff08\u65b0\u589e\u81ea\u5b9a\u4e49\u5c5e\u6027\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>pt-query-digest --filter 'do { my $rows_sent = $event-&gt;{rows_sent} || 0; my $rows_examined = $event-&gt;{rows_examined} || 1; $event-&gt;{row_ratio} = $rows_sent \/ $rows_examined; 1 }' --order-by row_ratio \/data\/mysql\/log\/mysql-slow.log &gt; row_ratio_report.log\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u89e3\u8bfb\uff1a<code>row_ratio<\/code> \u8d8a\u63a5\u8fd1 1\uff0c\u8bf4\u660e\u626b\u63cf\u6548\u7387\u8d8a\u9ad8\uff08\u907f\u514d\u5168\u8868\u626b\u63cf\uff09<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">6.2 \u8fc7\u6ee4\u65e0\u7528 SQL\uff08\u5982 sleep \u8bed\u53e5\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>pt-query-digest --filter '($event->{arg}) !~ m\/SELECT\\s+SLEEP\\(\/i' \/data\/mysql\/log\/mysql-slow.log >digest_result_02.log<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">6.3 \u7ed3\u5408 tcpdump \u5206\u6790\u672a\u8bb0\u5f55\u7684\u6162\u67e5\u8be2<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># \u6293\u53053306\u7aef\u53e3\u6d41\u91cf\ntcpdump -i any port 3306 -s 65535 -w mysql.tcpdump\n\n# \u5206\u6790\u6293\u5305\u6587\u4ef6\npt-query-digest --type=tcpdump mysql.tcpdump &gt; tcpdump_slow.log\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">pt-query-digest \u7684\u6838\u5fc3\u4ef7\u503c\u5728\u4e8e \u201c\u805a\u5408\u540c\u7c7b\u3001\u805a\u7126\u91cd\u70b9\u201d\uff0c\u8ba9\u6211\u4eec\u4ece\u6d77\u91cf SQL \u4e2d\u5feb\u901f\u5b9a\u4f4d\u6027\u80fd\u74f6\u9888\u3002\u5efa\u8bae\u5728\u65e5\u5e38\u8fd0\u7ef4\u4e2d\u517b\u6210 \u201c\u6162\u67e5\u8be2\u5206\u6790 &#8211; \u4f18\u5316 &#8211; \u9a8c\u8bc1\u201d \u7684\u95ed\u73af\u4e60\u60ef\uff0c\u7ed3\u5408\u672c\u6587\u7684\u573a\u666f\u6a21\u677f\u548c\u907f\u5751\u6307\u5357\uff0c\u8ba9 MySQL \u6027\u80fd\u4f18\u5316\u66f4\u9ad8\u6548\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u5728\u4f7f\u7528\u4e2d\u9047\u5230\u7279\u6b8a\u573a\u666f\uff0c\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u4ea4\u6d41\u63a2\u8ba8\uff5e \u540e\u7eed\u5c06\u5206\u4eab\u66f4\u591a Percona Toolkit \u5de5\u5177\u7684\u5b9e\u6218\u6280\u5de7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u4e3a\u6570\u636e\u5e93\u8fd0\u7ef4\u7684\u6838\u5fc3\u5de5\u5177\uff0cpt-query-digest \u51ed\u501f\u5f3a\u5927\u7684\u6162\u67e5\u8be2\u805a\u5408\u5206\u6790\u80fd\u529b\uff0c\u6210\u4e3a\u6211\u65e5\u5e38\u6392\u67e5 MyS<\/p>\n<div class=\"more-link\">\n\t\t\t\t <a href=\"https:\/\/yunyanglib.cn\/?p=1083\" 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":1111,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[16],"class_list":["post-1083","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\/1083","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=1083"}],"version-history":[{"count":7,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/1083\/revisions"}],"predecessor-version":[{"id":1357,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/1083\/revisions\/1357"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/media\/1111"}],"wp:attachment":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1083"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}