{"id":191404,"date":"2024-11-12T16:38:20","date_gmt":"2024-11-12T08:38:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/191404\/"},"modified":"2024-11-12T16:38:21","modified_gmt":"2024-11-12T08:38:21","slug":"%e8%a9%b3%e8%a7%a3mysql%e4%b8%adslowlog%e7%9a%84%e5%af%a6%e9%9a%9b%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/191404\/","title":{"rendered":"\u8a73\u89e3MySQL\u4e2dSlowLog\u7684\u5be6\u969b\u914d\u7f6e"},"content":{"rendered":"<h1 id=\"%e8%a9%b3%e8%a7%a3mysql%e4%b8%adslowlog%e7%9a%84%e5%af%a6%e9%9a%9b%e9%85%8d%e7%bd%ae-gJvsPuPtZY\">\u8a73\u89e3MySQL\u4e2dSlowLog\u7684\u5be6\u969b\u914d\u7f6e<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6027\u80fd\u512a\u5316\u662f\u6bcf\u4f4d\u7ba1\u7406\u54e1\u5fc5\u9808\u9762\u5c0d\u7684\u91cd\u8981\u8ab2\u984c\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u4f86\u5e6b\u52a9\u7528\u6236\u8b58\u5225\u548c\u89e3\u6c7a\u6027\u80fd\u74f6\u9838\u3002\u5176\u4e2d\uff0cSlow Query Log\uff08\u6162\u67e5\u8a62\u65e5\u8a8c\uff09\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u529f\u80fd\uff0c\u80fd\u5920\u8a18\u9304\u57f7\u884c\u6642\u9593\u8d85\u904e\u6307\u5b9a\u95be\u503c\u7684\u67e5\u8a62\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39\u5982\u4f55\u5728MySQL\u4e2d\u914d\u7f6eSlowLog\uff0c\u4ee5\u4fbf\u66f4\u6709\u6548\u5730\u76e3\u63a7\u548c\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afslow-query-log%ef%bc%9f-gJvsPuPtZY\">\u4ec0\u9ebc\u662fSlow Query Log\uff1f<\/h2>\n<p>Slow Query Log\u662fMySQL\u7684\u4e00\u500b\u65e5\u8a8c\u529f\u80fd\uff0c\u7528\u65bc\u8a18\u9304\u57f7\u884c\u6642\u9593\u8d85\u904e\u7279\u5b9a\u6642\u9593\u7684\u67e5\u8a62\u3002\u9019\u4e9b\u67e5\u8a62\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6574\u9ad4\u6027\u80fd\uff0c\u56e0\u6b64\u901a\u904e\u5206\u6790\u9019\u4e9b\u65e5\u8a8c\uff0c\u7ba1\u7406\u54e1\u53ef\u4ee5\u8b58\u5225\u51fa\u6027\u80fd\u74f6\u9838\uff0c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u512a\u5316\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e9%85%8d%e7%bd%aeslowlog%ef%bc%9f-gJvsPuPtZY\">\u70ba\u4ec0\u9ebc\u9700\u8981\u914d\u7f6eSlowLog\uff1f<\/h2>\n<ul>\n<li><strong>\u6027\u80fd\u76e3\u63a7\uff1a<\/strong>\u901a\u904e\u8a18\u9304\u6162\u67e5\u8a62\uff0c\u7ba1\u7406\u54e1\u53ef\u4ee5\u53ca\u6642\u767c\u73fe\u6027\u80fd\u554f\u984c\u3002<\/li>\n<li><strong>\u512a\u5316\u67e5\u8a62\uff1a<\/strong>\u5206\u6790\u6162\u67e5\u8a62\u65e5\u8a8c\u53ef\u4ee5\u5e6b\u52a9\u512a\u5316SQL\u8a9e\u53e5\uff0c\u5f9e\u800c\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u97ff\u61c9\u901f\u5ea6\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u4e86\u89e3\u54ea\u4e9b\u67e5\u8a62\u6d88\u8017\u4e86\u904e\u591a\u7684\u8cc7\u6e90\uff0c\u6709\u52a9\u65bc\u66f4\u597d\u5730\u5206\u914d\u7cfb\u7d71\u8cc7\u6e90\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%85%8d%e7%bd%aeslow-query-log-gJvsPuPtZY\">\u5982\u4f55\u914d\u7f6eSlow Query Log<\/h2>\n<p>\u4ee5\u4e0b\u662f\u914d\u7f6eMySQL Slow Query Log\u7684\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e7%b7%a8%e8%bc%afmysql%e9%85%8d%e7%bd%ae%e6%96%87%e4%bb%b6-gJvsPuPtZY\">1. \u7de8\u8f2fMySQL\u914d\u7f6e\u6587\u4ef6<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u627e\u5230MySQL\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u901a\u5e38\u662fmy.cnf\u6216my.ini\u3002\u9019\u500b\u6587\u4ef6\u7684\u8def\u5f91\u53ef\u80fd\u56e0\u64cd\u4f5c\u7cfb\u7d71\u800c\u7570\u3002\u5728Linux\u7cfb\u7d71\u4e2d\uff0c\u901a\u5e38\u4f4d\u65bc\/etc\/mysql\/my.cnf\u6216\/etc\/my.cnf\u3002\u5728Windows\u7cfb\u7d71\u4e2d\uff0c\u5247\u53ef\u80fd\u4f4d\u65bcMySQL\u5b89\u88dd\u76ee\u9304\u4e0b\u3002<\/p>\n<h3 id=\"2-%e6%b7%bb%e5%8a%a0%e6%88%96%e4%bf%ae%e6%94%b9%e9%85%8d%e7%bd%ae%e5%8f%83%e6%95%b8-gJvsPuPtZY\">2. \u6dfb\u52a0\u6216\u4fee\u6539\u914d\u7f6e\u53c3\u6578<\/h3>\n<p>\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u60a8\u9700\u8981\u6dfb\u52a0\u6216\u4fee\u6539\u4ee5\u4e0b\u53c3\u6578\uff1a<\/p>\n<pre><code>\n[mysqld]\nslow_query_log = 1\nslow_query_log_file = \/var\/log\/mysql\/mysql-slow.log\nlong_query_time = 2\nlog_queries_not_using_indexes = 1\n<\/code><\/pre>\n<ul>\n<li><strong>slow_query_log\uff1a<\/strong>\u555f\u7528\u6162\u67e5\u8a62\u65e5\u8a8c\u3002<\/li>\n<li><strong>slow_query_log_file\uff1a<\/strong>\u6307\u5b9a\u6162\u67e5\u8a62\u65e5\u8a8c\u7684\u5b58\u5132\u8def\u5f91\u3002<\/li>\n<li><strong>long_query_time\uff1a<\/strong>\u8a2d\u7f6e\u67e5\u8a62\u88ab\u8996\u70ba\u6162\u67e5\u8a62\u7684\u6642\u9593\u95be\u503c\uff08\u4ee5\u79d2\u70ba\u55ae\u4f4d\uff09\u3002\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u8a2d\u7f6e\u70ba2\u79d2\u3002<\/li>\n<li><strong>log_queries_not_using_indexes\uff1a<\/strong>\u8a18\u9304\u672a\u4f7f\u7528\u7d22\u5f15\u7684\u67e5\u8a62\u3002<\/li>\n<\/ul>\n<h3 id=\"3-%e9%87%8d%e5%95%9fmysql%e6%9c%8d%e5%8b%99-gJvsPuPtZY\">3. \u91cd\u555fMySQL\u670d\u52d9<\/h3>\n<p>\u5b8c\u6210\u914d\u7f6e\u5f8c\uff0c\u60a8\u9700\u8981\u91cd\u555fMySQL\u670d\u52d9\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\u3002\u5728Linux\u7cfb\u7d71\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>\nsudo systemctl restart mysql\n<\/code><\/pre>\n<p>\u5728Windows\u7cfb\u7d71\u4e2d\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u670d\u52d9\u7ba1\u7406\u5668\u91cd\u555fMySQL\u670d\u52d9\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8b%e5%92%8c%e5%88%86%e6%9e%90slow-query-log-gJvsPuPtZY\">\u67e5\u770b\u548c\u5206\u6790Slow Query Log<\/h2>\n<p>\u6162\u67e5\u8a62\u65e5\u8a8c\u7684\u683c\u5f0f\u901a\u5e38\u70ba\u6587\u672c\u6587\u4ef6\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u6587\u672c\u7de8\u8f2f\u5668\u67e5\u770b\u3002\u70ba\u4e86\u66f4\u65b9\u4fbf\u5730\u5206\u6790\u6162\u67e5\u8a62\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u5982pt-query-digest\u4f86\u89e3\u6790\u65e5\u8a8c\uff0c\u9019\u6a23\u53ef\u4ee5\u66f4\u6e05\u6670\u5730\u4e86\u89e3\u54ea\u4e9b\u67e5\u8a62\u6700\u8017\u6642\u3002<\/p>\n<pre><code>\npt-query-digest \/var\/log\/mysql\/mysql-slow.log\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-gJvsPuPtZY\">\u7d50\u8ad6<\/h2>\n<p>\u914d\u7f6eMySQL\u7684Slow Query Log\u662f\u4e00\u500b\u7c21\u55ae\u800c\u6709\u6548\u7684\u6b65\u9a5f\uff0c\u53ef\u4ee5\u5e6b\u52a9\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u8b58\u5225\u548c\u512a\u5316\u6027\u80fd\u74f6\u9838\u3002\u901a\u904e\u5b9a\u671f\u6aa2\u67e5\u548c\u5206\u6790\u6162\u67e5\u8a62\u65e5\u8a8c\uff0c\u60a8\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u9ad8\u6548\u904b\u884c\uff0c\u4e26\u63d0\u5347\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684MySQL\u6578\u64da\u5eab\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u7db2\u7ad9\u9084\u662f\u5927\u578b\u61c9\u7528\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2dSlowLog\u7684\u5be6\u969b\u914d\u7f6e\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u512a\u5316\u67e5\u8a62\u6548\u7387\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-191404","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/191404","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=191404"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/191404\/revisions"}],"predecessor-version":[{"id":191405,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/191404\/revisions\/191405"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=191404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=191404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=191404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}